Multiple oil leakage prevention mechanism of hard tooth surface speed reducer

Abstract

The multiple oil leakage prevention mechanism comprises a hard tooth surface speed reducer main body, a mounting plate is arranged at the top end of the hard tooth surface speed reducer main body, a pressure adjusting cylinder is arranged at the top end of the mounting plate and communicated with the hard tooth surface speed reducer main body, a filter cylinder is arranged at the top end of the pressure adjusting cylinder, and the filter cylinder is communicated with the hard tooth surface speed reducer main body. Symmetrically arranged vent holes are formed in the filter cartridge and located at the top end of the pressure adjusting barrel, a sealing groove is formed in the inner bottom end of the pressure adjusting barrel, a sealing plug matched with the sealing groove is arranged in the sealing groove, and the sealing plug is connected with the pressure adjusting barrel through a lifting assembly. The speed reducer has the beneficial effects that the internal pressure of the speed reducer can be adjusted by arranging the sealing plug and the lifting assembly, the phenomenon of oil leakage caused by the fact that the internal pressure of the speed reducer is too large or too small is prevented, and the lifting assembly controls the sealing plug to move through cooperation of a servo motor, a lead screw, a moving cylinder, a pressure sensor and a PLC so as to adjust the opening and closing state of a vent hole; and air pressure control in the speed reducer is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and more specifically, to a multi-layered oil leakage prevention mechanism for a hardened gear surface speed reducer. Background Technology

[0002] Hardened gear reducers are a commonly used mechanical transmission device. Through a special design, they change the speed ratio between the input and output shafts, thereby achieving power transmission and speed reduction. The gears are made of materials with high hardness and good wear resistance, enabling them to withstand large torques and loads. During operation, heat is generated by gear meshing and bearing friction, causing the internal temperature of the hardened gear reducer to rise continuously. Because the volume of the hardened gear reducer remains constant, the expansion of air will cause the internal pressure to rise continuously. Excessive internal pressure can cause the sealing cover to pop out and the oil seal lip to flip outward, leading to oil leakage.

[0003] According to Chinese Patent CN202420347431.4, a leak-proof hardened gear reducer is disclosed. This application uses a valve core and spring to move up and down, controlling the flow of the air outlet and inlet pipes during movement to regulate the internal pressure of the hardened gear reducer. The inlet and outlet pipes are angled downwards to prevent oil and impurities from clogging the pipe openings. The structure is simple, easy to manufacture, and improves the service life of the hardened gear reducer. Existing leak-proof structures regulate the internal pressure of the reducer through the cooperation of springs and valve cores. However, vibration occurs during deceleration. When the vibration amplitude is too large, it causes the spring to wobble, which in turn causes the valve core to move. When the valve core moves, the air vents open and close frequently, resulting in unstable internal pressure in the reducer.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a multi-layer oil leakage prevention mechanism for a hardened gear reducer to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A multi-layered oil leakage prevention mechanism for a hardened gear reducer includes a hardened gear reducer body, a mounting plate at the top of the hardened gear reducer body, a pressure regulating cylinder at the top of the mounting plate, the pressure regulating cylinder being connected to the hardened gear reducer body, a filter cylinder at the top of the pressure regulating cylinder, symmetrically arranged vent holes in the filter cylinder located at the top of the pressure regulating cylinder, a sealing groove at the bottom of the pressure regulating cylinder, a matching sealing plug in the sealing groove, and the sealing plug being connected to the pressure regulating cylinder via a lifting assembly.

[0008] Preferably, the mounting plate is connected to the hardened gear reducer body by means of bolts.

[0009] Preferably, the lifting assembly includes a fixed plate at the top of the filter cartridge, the fixed plate being connected to the pressure regulating cylinder via a connecting column, a servo motor at the top of the fixed plate, a lead screw in the pressure regulating cylinder, the lead screw being connected to the pressure regulating cylinder via a bearing, a movable cylinder sleeved on the outer wall of the lead screw, the bottom end of the movable cylinder being connected to the sealing plug, the top of the lead screw extending outside the pressure regulating cylinder and passing through the filter cartridge and the fixed plate respectively, and being connected to the drive end of the servo motor, a pressure sensor being provided on one side of the top of the mounting plate, the detection end of the pressure sensor passing through the mounting plate and extending into the body of the hardened gear reducer, and a PLC controller being provided on the side of the top of the mounting plate away from the pressure sensor.

[0010] Preferably, both the pressure sensor and the servo motor are electrically connected to the PLC controller.

[0011] Preferably, the inner wall of the movable cylinder has a threaded groove that matches the lead screw, the outer wall of the movable cylinder has symmetrically arranged guide rods, and the inner wall of the pressure regulating cylinder has a guide groove that matches the guide rods.

[0012] Preferably, a connecting block is fixedly sleeved at the top of the filter cartridge and on the outer wall of the lead screw. The connecting block has symmetrically arranged L-shaped connecting frames on both sides, and a brush that abuts against the outer wall of the filter cartridge is provided on one side of the L-shaped connecting frame.

[0013] Preferably, the L-shaped connecting bracket is connected to the connecting block by bolt two.

[0014] The beneficial effects of this utility model are as follows: by setting a sealing plug and a lifting component, the internal pressure of the reducer can be adjusted to prevent oil leakage caused by excessive or insufficient internal pressure. The lifting component controls the movement of the sealing plug through the cooperation of a servo motor, lead screw, moving cylinder, pressure sensor and PLC controller, thereby adjusting the opening and closing state of the vent, making the internal air pressure control of the reducer more stable and reliable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a multi-layer oil leakage prevention mechanism for a hardened gear reducer according to an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the mounting plate in the multi-layer oil leakage prevention mechanism of a hardened gear reducer according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the pressure regulating cylinder in a multi-layer oil leakage prevention mechanism of a hardened gear reducer according to an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the pressure regulating cylinder in a multi-layer oil leakage prevention mechanism of a hardened gear reducer according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Hardened gear reducer body; 2. Mounting plate; 3. Pressure regulating cylinder; 4. Filter cylinder; 5. Vent hole; 6. Sealing groove; 7. Sealing plug; 8. Bolt 1; 9. Fixing plate; 10. Connecting column; 11. Servo motor; 12. Lead screw; 13. Bearing; 14. Moving cylinder; 15. Pressure sensor; 16. PLC controller; 17. Guide rod; 18. Guide groove; 19. Connecting block; 20. L-shaped connecting frame; 21. Brush; 22. Bolt 2. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a multi-layered oil leakage prevention mechanism for a hardened gear reducer is provided.

[0024] Example 1;

[0025] like Figure 1-4As shown, the multi-layer oil leakage prevention mechanism of the hardened gear reducer according to an embodiment of the present invention includes a hardened gear reducer body 1, a mounting plate 2 at the top of the hardened gear reducer body 1, a pressure regulating cylinder 3 at the top of the mounting plate 2, the pressure regulating cylinder 3 being connected to the hardened gear reducer body 1, a filter cylinder 4 at the top of the pressure regulating cylinder 3, symmetrically arranged vent holes 5 in the filter cylinder 4 and located at the top of the pressure regulating cylinder 3, a sealing groove 6 at the bottom of the pressure regulating cylinder 3, a matching sealing plug 7 in the sealing groove 6, and the sealing plug 7 being connected to the pressure regulating cylinder 3 through a lifting assembly.

[0026] Example 2;

[0027] like Figure 1-4As shown, the device includes a hardened gear reducer body 1. A mounting plate 2 is located at the top of the hardened gear reducer body 1. A pressure regulating cylinder 3 is located at the top of the mounting plate 2 and is connected to the hardened gear reducer body 1. A filter cylinder 4 is located at the top of the pressure regulating cylinder 3. Symmetrically arranged vent holes 5 are formed in the filter cylinder 4 at the top of the pressure regulating cylinder 3. A sealing groove 6 is formed at the bottom of the pressure regulating cylinder 3, and a matching sealing plug 7 is provided in the sealing groove 6. The sealing plug 7 is connected to the pressure regulating cylinder 3 via a lifting assembly. The mounting plate 2 is connected to the hardened gear reducer body 1 via bolts 8. The lifting assembly includes a fixed plate 9 at the top of the filter cylinder 4, which is connected to the pressure regulating cylinder 3 via a connecting column 10. A servo motor 11 is located at the top of the fixed plate 9. A lead screw 12 is located within the pressure regulating cylinder 3, connected to it via a bearing 13. A movable cylinder 14 is fitted around the outer wall of the lead screw 12, with its bottom end connected to the sealing plug 7. The top of the lead screw 12 extends beyond the pressure regulating cylinder 3, passing through both the filter cylinder 4 and the fixed plate 9, and is connected to the drive end of the servo motor 11. A pressure sensor 15 is located on one side of the top of the mounting plate 2, with its detection end penetrating the mounting plate 2 and extending into the hardened gear reducer body 1. A PLC controller 16 is located on the side of the top of the mounting plate 2 away from the pressure sensor 15. Both the pressure sensor 15 and the servo motor 11 are electrically connected to the PLC controller 16. The inner wall of the movable cylinder 14 has a threaded groove that matches the lead screw 12. The outer wall of the movable cylinder 14 has symmetrically arranged guide rods 17. The inner wall of the pressure regulating cylinder 3 has a guide groove 18 that matches the guide rods 17. A connecting block 19 is fixedly sleeved on the top of the filter cylinder 4 and on the outer wall of the lead screw 12. The connecting block 19 has symmetrically arranged L-shaped connecting frames 20 on both sides. One side of the L-shaped connecting frame 20 has a brush 21 that abuts against the outer wall of the filter cylinder 4. The L-shaped connecting frame 20 is connected to the connecting block 19 by bolts 22.

[0028] In practical applications, when the internal air pressure of the hardened gear reducer body 1 increases, the pressure sensor 15 sends a pressure signal to the PLC controller 16. The PLC controller 16 then starts the servo motor 11, which drives the lead screw 12 to rotate. The lead screw 12 drives the moving cylinder 14 to move upward, which in turn drives the sealing plug 7 to move upward. When the sealing plug 7 disengages, the gas in the hardened gear reducer body enters the pressure regulating cylinder 3 and is then discharged through the vent 5. When the internal air pressure of the hardened gear reducer body 1 returns to normal, the servo motor 11 rotates in the opposite direction, causing the sealing plug 7 to move downward. The hardened gear reducer body 1 is sealed in the sealing groove 6. When the internal pressure of the hardened gear reducer body 1 is too low, the pressure sensor 15 sends a signal to the PLC controller 16. The PLC controller 16 starts the servo motor 11 in the same way as above. The internal pressure of the reducer can be adjusted by setting the sealing plug and the lifting component to prevent oil leakage caused by excessive or insufficient internal pressure. The lifting component controls the movement of the sealing plug through the cooperation of the servo motor, lead screw, moving cylinder, pressure sensor and PLC controller, thereby adjusting the opening and closing state of the vent, making the internal air pressure control of the reducer more stable and reliable.

[0029] In summary, by utilizing the above-mentioned technical solution of this utility model, the internal pressure of the reducer can be adjusted by setting a sealing plug and a lifting assembly, preventing oil leakage caused by excessive or insufficient internal pressure of the reducer. The lifting assembly, through the cooperation of a servo motor, lead screw, moving cylinder, pressure sensor and PLC controller, controls the movement of the sealing plug and thus adjusts the opening and closing state of the vent, making the internal air pressure control of the reducer more stable and reliable.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layered oil leakage prevention mechanism for a hardened gear reducer, characterized in that, The device includes a hardened gear reducer body (1), a mounting plate (2) at the top of the hardened gear reducer body (1), a pressure regulating cylinder (3) at the top of the mounting plate (2), the pressure regulating cylinder (3) being connected to the hardened gear reducer body (1), a filter cylinder (4) at the top of the pressure regulating cylinder (3), symmetrically arranged vent holes (5) in the filter cylinder (4) and located at the top of the pressure regulating cylinder (3), a sealing groove (6) at the bottom of the pressure regulating cylinder (3), a matching sealing plug (7) in the sealing groove (6), and the sealing plug (7) being connected to the pressure regulating cylinder (3) through a lifting assembly.

2. The multi-layered oil leakage prevention mechanism for a hardened gear reducer according to claim 1, characterized in that, The mounting plate (2) is connected to the hardened gear reducer body (1) by bolt (8).

3. The multi-layered oil leakage prevention mechanism for a hardened gear reducer according to claim 1, characterized in that, The lifting assembly includes a fixed plate (9) at the top of the filter cylinder (4), the fixed plate (9) being connected to the pressure regulating cylinder (3) via a connecting column (10), a servo motor (11) at the top of the fixed plate (9), a lead screw (12) inside the pressure regulating cylinder (3), the lead screw (12) being connected to the pressure regulating cylinder (3) via a bearing (13), a movable cylinder (14) sleeved on the outer wall of the lead screw (12), and the bottom end of the movable cylinder (14) being connected to the sealing plug (7). The top of the lead screw (12) extends to the outside of the pressure regulating cylinder (3) and passes through the filter cylinder (4) and the fixed plate (9) respectively, and is connected to the drive end of the servo motor (11). A pressure sensor (15) is provided on one side of the top of the mounting plate (2). The detection end of the pressure sensor (15) passes through the mounting plate (2) and extends into the hardened gear reducer body (1). A PLC controller (16) is provided on the side of the top of the mounting plate (2) away from the pressure sensor (15).

4. The multi-layered oil leakage prevention mechanism for a hardened gear reducer according to claim 3, characterized in that, The pressure sensor (15) and the servo motor (11) are both electrically connected to the PLC controller (16).

5. The multi-layered oil leakage prevention mechanism for a hardened gear reducer according to claim 3, characterized in that, The inner wall of the movable cylinder (14) is provided with a threaded groove that matches the lead screw (12), and the outer wall of the movable cylinder (14) is provided with symmetrically arranged guide rods (17). The inner wall of the pressure regulating cylinder (3) is provided with a guide groove (18) that matches the guide rod (17).

6. The multi-layered oil leakage prevention mechanism for a hardened gear reducer according to claim 3, characterized in that, A connecting block (19) is fixedly sleeved on the top of the filter cylinder (4) and on the outer wall of the screw (12). A symmetrically arranged L-shaped connecting frame (20) is provided on both sides of the connecting block (19). A brush (21) that abuts against the outer wall of the filter cylinder (4) is provided on one side of the L-shaped connecting frame (20).

7. The multi-layered oil leakage prevention mechanism for a hardened gear reducer according to claim 6, characterized in that, The L-shaped connecting frame (20) is connected to the connecting block (19) by bolt two (22).

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