High-efficiency motor rotating shaft

Abstract

The utility model relates to the technical field of motor rotating shafts, in particular to an efficient motor rotating shaft which comprises a rotating shaft body, a bearing assembly and a lubricating assembly are arranged on the rotating shaft body, the bearing assembly comprises an inner ring connected to the rotating shaft body in a sleeving mode, and the inner ring is sleeved with an outer ring; the inner ring, the outer ring, the through hole and other structures are arranged in a matched mode, in the using process, lubricating oil is sprayed on the inner ring through the lubricating assembly and permeates into the position between the inner ring and the outer ring through the through hole in the rotating process, and therefore the lubricating effect is improved. And meanwhile, the lubricating oil can seep out of the through holes in the outer ring to lubricate the whole bearing assembly, so that the problem that the lubricating effect is reduced due to the fact that the lubricating oil is discharged from the oil seeping groove, can only be scattered on the clamping ring and cannot lubricate the whole bearing mechanism is solved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of motor shafts, and in particular to a high-efficiency motor shaft. Background Art

[0002] The motor, commonly known as "motor", refers to an electromagnetic device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction. It can be divided into DC motor and AC motor according to the type of working power supply. The main function of the motor is to convert electrical energy into mechanical energy, thereby driving the motor shaft at the front end to rotate. The shaft is the main component of the motor, and the motor is connected to the external drive through one end of the shaft.

[0003] The utility model patent with announcement number CN220732504U proposes a high-efficiency motor shaft, including a main body, the main body includes a shaft, the outer surface of one end of the shaft body is sleeved with a bearing mechanism, one end of the shaft body is provided with a lubricating oil adding mechanism, one end of the shaft body is provided with a lubricating oil seepage mechanism, the lubricating oil adding mechanism includes a limiting block; the lubricating oil seepage mechanism includes an oil storage bin; the bearing mechanism includes an outer ring.

[0004] One of the above-mentioned high-efficiency motor shafts, through a bearing mechanism and a lubricating oil seepage mechanism, when the shaft rotates at high speed, the lubricating oil in the oil storage tank is transferred out from the oil seepage groove through centrifugal force, so as to lubricate the connection friction between the bearing mechanism and the shaft and reduce the friction. However, the lubricating oil discharged from the oil seepage groove can only be sprinkled onto the retaining ring, and cannot lubricate the entire bearing mechanism, resulting in a problem of reduced lubrication effect. Utility Model Content

[0005] The utility model aims to solve or at least alleviate the problem of an existing high-efficiency motor shaft, which, through a bearing mechanism and a lubricating oil seepage mechanism, transfers the lubricating oil in the oil storage tank from the oil seepage groove through centrifugal force when the shaft rotates at high speed, lubricates the friction connection between the bearing mechanism and the shaft, and reduces the friction. However, the lubricating oil discharged from the oil seepage groove can only be sprinkled onto the retaining ring, and cannot lubricate the entire bearing mechanism, resulting in a reduced lubrication effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-efficiency motor shaft comprises a shaft body, on which a bearing assembly and a lubrication assembly are provided, and is characterized in that: the bearing assembly comprises an inner ring sleeved on the shaft body, an outer ring sleeved on the inner ring, a side wall of the outer ring opposite to the inner ring is provided with a receiving groove, a plurality of balls are provided between the inner ring and the outer ring, both sides of the balls are respectively located in the receiving grooves, and through holes are provided on the four side walls of the inner ring and the outer ring on both sides of the receiving grooves.

[0008] By adopting the above technical solution, when in use, the lubricating oil is sprinkled on the inner ring through the lubrication component, and penetrates through the through holes to between the inner ring and the outer ring during rotation to lubricate the balls. At the same time, it can seep out from the through holes on the outer ring to lubricate the entire bearing assembly, thereby avoiding as much as possible the problem that the lubricating oil is discharged from the oil seepage groove and can only be sprinkled on the retaining ring, and the entire bearing mechanism cannot be lubricated, resulting in reduced lubrication effect.

[0009] Optionally, the lubrication assembly includes an oil storage cavity provided in the shaft body, a plurality of oil outlet holes are provided on a side wall of the shaft body located at the bearing assembly, and a filter plate is fixedly connected to one end of the inner wall of the oil outlet hole away from the oil storage cavity.

[0010] By adopting the above technical solution, when the shaft body rotates, the lubricating oil in the oil storage chamber can be thrown out through the oil outlet hole, and the lubricating oil can be sprinkled on the bearing assembly to lubricate the bearing assembly and the shaft body. At the same time, the filter plate can prevent dust from entering the oil storage chamber from the oil outlet hole and affecting the lubricating oil effect.

[0011] Optionally, a first spring is fixedly connected to a side wall of the filter plate close to the oil storage cavity, and a sealing ball is fixedly connected to an end of the first spring away from the filter plate. The diameter of the sealing ball is larger than the diameter of the oil outlet hole and fits closely with the oil outlet hole.

[0012] By adopting the above technical solution, when not in use, the oil outlet hole can be blocked by the sealing ball to prevent leakage of lubricating oil. When in use, through the high-speed rotation of the shaft body, under the action of centrifugal force, the sealing ball will stretch the first spring, so that the sealing ball cannot fit into the oil outlet hole and block the oil outlet hole.

[0013] Optionally, a refueling hole is provided at one end of the rotating shaft body, a sealing rod is inserted in the refueling hole, a side wall of the oil storage chamber away from the refueling hole is fixedly connected to a connecting block, a side wall of the connecting block is provided with a limiting hole, an end of the sealing rod away from the refueling hole is fixedly connected to a second spring and is located in the limiting hole, and an end of the second spring away from the sealing rod is fixedly connected to the side wall of the limiting hole.

[0014] By adopting the above technical solution, when it is necessary to add lubricating oil to the oil storage chamber, the sealing rod is pushed by using the external filling pipe to contract the second spring and push the sealing rod into the oil storage chamber. The lubricating oil can be added to the oil storage chamber from the filling hole, and then the filling pipe is pulled out. The second spring rebounds and inserts the sealing rod into the filling hole to seal the filling hole.

[0015] Optionally, a telescopic rod is provided in each of the first springs, and two ends of the telescopic rod are respectively fixedly connected to the filter plate and the sealing ball.

[0016] By adopting the above technical solution, the stability of the first spring can be improved through the telescopic rod.

[0017] Optionally, one end of the sealing rod is slidably connected to a support rod, and one end of the support rod away from the sealing rod is located inside the second spring and fixedly connected to the side wall of the limiting hole.

[0018] By adopting the above technical solution, the stability of the second spring can be improved through the second telescopic rod.

[0019] Optionally, limit rods are provided on both sides of the sealing rod in the oil storage chamber, and both ends of the limit rods are fixedly connected to the connecting block and the side wall of the oil storage chamber respectively. Two guide plates are fixedly connected to the sealing rod, and the guide plates are both sleeved on the limit rods to form a sliding connection.

[0020] By adopting the above technical solution, the limiting rod and the guide plate can prevent the sealing rod from shaking after being pushed into the oil storage cavity, making it difficult to insert the sealing rod back into the oil filling hole.

[0021] Optionally, one end of the sealing rod is fixedly connected to a limiting plate, and the distance between the limiting plate and one end of the sealing rod away from the second spring is less than the depth of the refueling hole.

[0022] By adopting the above technical solution, it is possible to prevent the end of the sealing rod away from the second spring from penetrating the oil filling hole and extending out of the outside of the rotating shaft body, thereby affecting the use.

[0023] In summary, the beneficial effects of this application are as follows:

[0024] 1. The present application adopts the coordination arrangement between the inner ring, the outer ring and the through hole. When in use, the lubricating oil is sprinkled on the inner ring through the lubricating assembly. During the rotation process, the lubricating oil penetrates between the inner ring and the outer ring through the through hole to lubricate the ball. At the same time, the lubricating oil can seep out from the through hole on the outer ring to lubricate the entire bearing assembly, thereby avoiding the problem that the lubricating oil can only be sprinkled on the clamping ring when discharged from the oil seepage groove, and the entire bearing mechanism cannot be lubricated, resulting in reduced lubrication effect.

[0025] 2. When not in use, the oil outlet hole can be blocked by the sealing ball to prevent leakage of lubricating oil. When in use, through the high-speed rotation of the shaft body, under the action of centrifugal force, the sealing ball will stretch the first spring, so that the sealing ball cannot fit into the oil outlet hole and block the oil outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the bearing assembly structure of the utility model;

[0028] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0029] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged structure of area B in the middle.

[0030] Explanation of the accompanying drawings: 1. shaft body; 2. inner ring; 3. outer ring; 4. receiving groove; 5. ball; 6. through hole; 7. oil storage chamber; 8. oil outlet hole; 9. filter plate; 10. first spring; 11. sealing ball; 12. oil filling hole; 13. sealing rod; 14. connecting block; 15. limiting hole; 16. second spring; 17. telescopic rod; 18. support rod; 19. limiting rod; 20. guide plate; 21. limiting plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] See also Figure 1-3 A high-efficiency motor shaft comprises a shaft body 1, on which a bearing assembly and a lubrication assembly are arranged, the bearing assembly comprises an inner ring 2 sleeved on the shaft body 1, an outer ring 3 sleeved on the inner ring 2, a side wall of the outer ring 3 opposite to the inner ring 2 is provided with a receiving groove 4 for limiting sliding, a plurality of balls 5 for reducing the rotational friction between the inner ring 2 and the outer ring 3 are arranged between the inner ring 2 and the outer ring 3, both sides of the balls 5 are respectively located in the receiving groove 4, and through holes 6 for lubricating oil penetration are opened on both sides of the side walls of the inner ring 2 and the outer ring 3 on both sides of the receiving groove 4.

[0033] When in use, the lubricating oil is sprinkled on the inner ring 2 through the lubrication assembly, and penetrates into the space between the inner ring 2 and the outer ring 3 through the through hole 6 during rotation to lubricate the ball 5. At the same time, it can seep out from the through hole 6 on the outer ring 3 to lubricate the entire bearing assembly, thereby avoiding the problem that the lubricating oil is discharged from the oil seepage groove and can only be sprinkled on the retaining ring, and the entire bearing mechanism cannot be lubricated, resulting in reduced lubrication effect.

[0034] Reference Figure 2 and Figure 3 The lubrication assembly includes an oil storage chamber 7 opened in the shaft body 1. A plurality of oil outlet holes 8 are opened on the side wall of the shaft body 1 at the bearing assembly. A filter plate 9 is fixedly connected to one end of the inner wall of the oil outlet hole 8 away from the oil storage chamber 7. When the shaft body 1 rotates, the lubricating oil in the oil storage chamber 7 can be thrown out through the oil outlet hole 8, and the lubricating oil can be sprinkled on the bearing assembly to lubricate the bearing assembly and the shaft body 1. At the same time, the filter plate 9 can prevent dust from entering the oil storage chamber 7 from the oil outlet hole 8 to affect the lubricating oil effect.

[0035] Reference Figure 3 A first spring 10 is fixedly connected to the side wall of the filter plate 9 close to the oil storage chamber 7, and a sealing ball 11 is fixedly connected to the end of the first spring 10 away from the filter plate 9. The diameter of the sealing ball 11 is larger than the diameter of the oil outlet hole 8 and fits with the oil outlet hole 8. When not in use, the oil outlet hole 8 can be blocked by the sealing ball 11 to prevent lubricating oil leakage. When in use, through the high-speed rotation of the shaft body 1, under the action of centrifugal force, the sealing ball 11 will stretch the first spring 10, so that the sealing ball 11 cannot fit with the oil outlet hole 8 and block the oil outlet hole 8.

[0036] Reference Figure 2 and Figure 4 A refueling hole 12 is provided at one end of the rotating shaft body 1, and a sealing rod 13 is inserted in the refueling hole 12. A connecting block 14 is fixedly connected to the side wall of the oil storage chamber 7 away from the refueling hole 12, and a limiting hole 15 is provided on one side wall of the connecting block 14. A second spring 16 is fixedly connected to the end of the sealing rod 13 away from the refueling hole 12 and is located in the limiting hole 15. The end of the second spring 16 away from the sealing rod 13 is fixedly connected to the side wall of the limiting hole 15. When it is necessary to add lubricating oil to the oil storage chamber 7, the sealing rod 13 is pushed by using an external refueling pipe to shrink the second spring 16 and push the sealing rod 13 into the oil storage chamber 7, so that the lubricating oil can be added to the oil storage chamber 7 from the refueling hole 12, and then the refueling pipe is pulled out, and the second spring 16 rebounds to insert the sealing rod 13 into the refueling hole 12, so that the refueling hole 12 can be sealed.

[0037] Reference Figure 3 A telescopic rod 17 is provided in the first spring 10 , and both ends of the telescopic rod 17 are fixedly connected to the filter plate 9 and the sealing ball 11 respectively. The telescopic rod 17 can improve the stability of the first spring 10 .

[0038] Reference Figure 4 One end of the sealing rod 13 is slidably connected to a support rod 18 , and one end of the support rod 18 away from the sealing rod 13 is located inside the second spring 16 and fixedly connected to the side wall of the limiting hole 15 . The support rod 18 can improve the stability of the second spring 16 .

[0039] Reference Figure 2 A limit rod 19 is provided on both sides of the sealing rod 13 in the oil storage chamber 7. The two ends of the limit rod 19 are fixedly connected to the connecting block 14 and the side wall of the oil storage chamber 7 respectively. Two guide plates 20 are fixedly connected to the sealing rod 13. The guide plates 20 are all sleeved on the limit rod 19 to form a sliding connection. The limit rod 19 and the guide plate 20 can prevent the sealing rod 13 from shaking after the sealing rod 13 is pushed into the oil storage chamber 7, making it difficult to insert it back into the refueling hole 12.

[0040] Reference Figure 2One end of the sealing rod 13 is fixedly connected to a limiting plate 21, and the distance between the limiting plate 21 and the end of the sealing rod 13 away from the second spring 16 is less than the depth of the refueling hole 12, which can prevent the end of the sealing rod 13 away from the second spring 16 from passing through the refueling hole 12 and extending out of the outside of the rotating shaft body 1, thereby affecting the use.

[0041] The implementation principle of the present application is: when in use, the lubricating oil is sprinkled on the inner ring 2 through the lubrication assembly, and during the rotation, it penetrates through the through hole 6 to between the inner ring 2 and the outer ring 3 to lubricate the ball 5. At the same time, it can seep out from the through hole 6 on the outer ring 3 to lubricate the entire bearing assembly, and try to avoid the problem that the lubricating oil is discharged from the oil seepage groove and can only be sprinkled on the retaining ring, and the entire bearing mechanism cannot be lubricated, resulting in reduced lubrication effect.

[0042] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-efficiency motor shaft, comprising a shaft body (1), wherein a bearing assembly and a lubrication assembly are provided on the shaft body (1), characterized in that: The bearing assembly comprises an inner ring (2) sleeved on the rotating shaft body (1), an outer ring (3) sleeved on the inner ring (2), a side wall of the outer ring (3) opposite to the inner ring (2) being provided with a receiving groove (4), a plurality of balls (5) being provided between the inner ring (2) and the outer ring (3), two sides of the balls (5) being respectively located in the receiving groove (4), and through holes (6) being provided on four side walls of the inner ring (2) and the outer ring (3) on both sides of the receiving groove (4).

2. The high-efficiency motor shaft according to claim 1, characterized in that: The lubrication assembly comprises an oil storage chamber (7) provided in the shaft body (1); a plurality of oil outlet holes (8) are provided on a side wall of the shaft body (1) at the bearing assembly; a filter plate (9) is fixedly connected to one end of the inner wall of the oil outlet hole (8) away from the oil storage chamber (7).

3. The high-efficiency motor shaft according to claim 2, characterized in that: A first spring (10) is fixedly connected to a side wall of the filter plate (9) close to the oil storage chamber (7), and a sealing ball (11) is fixedly connected to an end of the first spring (10) away from the filter plate (9). The sealing ball (11) has a diameter greater than that of the oil outlet hole (8) and fits closely to the oil outlet hole (8).

4. The high-efficiency motor shaft according to claim 3, characterized in that: A refueling hole (12) is provided at one end of the rotating shaft body (1), a sealing rod (13) is inserted into the refueling hole (12), a connecting block (14) is fixedly connected to a side wall of the oil storage chamber (7) away from the refueling hole (12), a limiting hole (15) is provided on one side wall of the connecting block (14), a second spring (16) is fixedly connected to one end of the sealing rod (13) away from the refueling hole (12) and is located in the limiting hole (15), and an end of the second spring (16) away from the sealing rod (13) is fixedly connected to a side wall of one side of the limiting hole (15).

5. The high-efficiency motor shaft according to claim 3, characterized in that: A telescopic rod (17) is provided in each of the first springs (10), and two ends of the telescopic rod (17) are fixedly connected to the filter plate (9) and the sealing ball (11) respectively.

6. The high-efficiency motor shaft according to claim 4, characterized in that: One end of the sealing rod (13) is slidably connected to a support rod (18), and one end of the support rod (18) away from the sealing rod (13) is located inside the second spring (16) and fixedly connected to the side wall of the limiting hole (15).

7. The high-efficiency motor shaft according to claim 4, characterized in that: Limit rods (19) are provided on both sides of the sealing rod (13) in the oil storage chamber (7), and two ends of the limit rod (19) are fixedly connected to the connecting block (14) and the side wall of the oil storage chamber (7) respectively. Two guide plates (20) are fixedly connected to the sealing rod (13), and the guide plates (20) are both sleeved on the limit rod (19) to form a sliding connection.

8. The high-efficiency motor shaft according to claim 4, characterized in that: One end of the sealing rod (13) is fixedly connected to a limiting plate (21), and the distance between the limiting plate (21) and an end of the sealing rod (13) away from the second spring (16) is less than the depth of the refueling hole (12).

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