Oil injection mechanism of helical gear reducer
By designing an automated helical gear reducer oil injection mechanism, the lower turntable is driven to rotate by a power component. Combined with an annular enclosure and a receiving trough, automated oil injection is achieved, solving the problems of low efficiency and oil dripping pollution caused by manual oil injection, and improving oil injection efficiency and equipment cleanliness.
Patent Information
- Application Number
- CN202522502439.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-26
AI Technical Summary
The existing method of lubricating helical gear reducers mainly relies on manual operation, which is inefficient and easily leads to oil dripping and contamination of equipment and workstations.
An oil injection mechanism for a helical gear reducer was designed. The lower turntable is driven to rotate intermittently by a power component. Combined with an annular enclosure, a receiving trough, and an oil injection device, the mechanism enables automated feeding, oil injection, and material removal processes, preventing oil dripping.
It improves oil injection efficiency, avoids oil dripping and contaminating equipment and workstations, reduces oil waste, and enhances operational safety and equipment cleanliness.
Smart Images

Figure CN224680539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil injection device technology, and in particular to an oil injection mechanism for a helical gear reducer. Background Technology
[0002] In industrial production, helical gear reducers are widely used transmission components in various mechanical equipment. In order to ensure the normal operation and service life of helical gear reducers, they need to be lubricated regularly.
[0003] In the existing technology, the traditional method of lubricating helical gear reducers is mostly done manually, which has many drawbacks. Manual lubrication is inefficient, requiring operators to lubricate each reducer individually, resulting in low work efficiency. In addition, during the lubrication process, excess oil is easily dripped onto the surface of the reducer and the work station, which not only affects the cleanliness and appearance of the equipment. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an oil injection mechanism for a helical gear reducer.
[0005] The technical solution of this utility model is an oil injection mechanism for a helical gear reducer, which includes an annular support plate, a lower turntable, an upper turntable, a first guide plate, a second guide plate, an oil injection device, multiple second oil injection pipes, and multiple material receiving grooves.
[0006] A mounting bracket is provided at the upper end of the annular support plate, and a support bracket is provided at the bottom end of the annular support plate. A lower turntable is rotatably mounted on the annular support plate. Multiple limiting holes are formed along the annular array on the upper turntable, and support rings are provided inside each of the limiting holes. An upper turntable is located directly above the lower turntable. An annular barrier is provided around the edge of the upper turntable. A rotating tube is vertically installed at the center of the lower turntable, and the upper turntable is mounted on the rotating tube. A power assembly for driving the rotating tube is mounted on the mounting bracket. A second oil injection pipe movably passes through the upper turntable, and a first connecting slider is connected to the second oil injection pipe. The first connecting slider is connected to the upper turntable. A first elastic component is connected to the upper turntable, and a first ball bearing mounting rod is connected to the first connecting slider. A first ball bearing is installed at the end of the first ball bearing mounting rod. A first guide plate is located above the upper turntable and connected to the mounting frame. One side of the first guide plate has a structure that protrudes towards the bottom. A receiving groove is slidably installed at the bottom end of the upper turntable. A second elastic component is connected between the receiving groove and the upper turntable. A second ball bearing mounting rod is connected to the receiving groove, and a second ball bearing is installed on the second ball bearing mounting rod. A second guide plate is located below the upper turntable and connected to the mounting frame. The second guide plate has an arc-shaped structure. An oil injection device is installed on the mounting frame.
[0007] Preferably, the end of the receiving trough away from the rotating pipe is open, the bottom inner side of the receiving trough is provided with an inclined surface, the bottom end of the inclined surface is away from the opening of the receiving trough, and an oil drain hose is provided to connect the receiving trough and the rotating pipe.
[0008] Preferably, the rotating tube has an oil inlet hole, the bottom end of which is flush with the upper surface of the upper turntable; and the annular support plate has an oil leakage hole at its center.
[0009] Preferably, the power assembly includes a servo motor, a gear, and a gear ring. The servo motor is mounted on a mounting bracket, the gear is connected to the output shaft of the servo motor, and the gear ring is mounted on the outer periphery of the rotating tube and meshes with the gear.
[0010] Preferably, the first elastic component includes a first guide rod, a first spring, and a first limiting block, wherein the first guide rod is vertically disposed on the upper turntable, the first guide rod movably passes through the first connecting slider and its top end is connected to the first limiting block, and the first spring is sleeved on the first guide rod.
[0011] Preferably, the second elastic component includes a second guide rod, a second spring, and two second limiting blocks, wherein the two second limiting blocks are arranged side by side at the bottom end of the upper turntable, the two ends of the second guide rod are respectively connected to the two second limiting blocks, a second connecting slider is connected to the receiving groove, the second connecting slider is slidably arranged on the second guide rod, and the second spring is sleeved on the second guide rod.
[0012] Preferably, the oil injection device includes an oil tank, a first oil injection pipe, an electromagnetic flow meter, and a solenoid valve. The oil tank is mounted on a mounting frame, the first oil injection pipe is connected to the oil tank, and the electromagnetic flow meter and the solenoid valve are both mounted on the first oil injection pipe.
[0013] Compared with the prior art, the present invention has the following beneficial technical effects:
[0014] 1. In this technical solution, the lower turntable is driven to rotate intermittently by a power component, thereby enabling simultaneous material feeding, oil injection, and material removal, which greatly improves the efficiency of oil injection.
[0015] 2. The ring-shaped enclosure prevents excess oil from dripping directly onto the reducer and lower turntable. The receiving trough collects excess oil from the bottom of the second oil pipe, preventing oil from dripping when operators remove the reducer, thus avoiding contamination of the reducer and workstation, and also preventing oil waste. Attached Figure Description
[0016] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.
[0017] Figure 3This is a schematic diagram of the structure of the first guide plate and the second guide plate in this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the second oil injection pipe and the first elastic component in this utility model.
[0019] Figure 5 This is a schematic diagram of the material receiving trough and the second elastic component in this utility model.
[0020] Reference numerals: 1. Annular support plate; 2. Bracket; 3. Lower turntable; 301. Limiting hole; 4. Rotating pipe; 401. Oil inlet; 5. Upper turntable; 6. Annular enclosure; 7. Mounting bracket; 8. Oil tank; 9. Support ring; 10. Control panel; 11. Annular groove; 12. Servo motor; 13. Gear; 14. Gear ring; 15. First oil injection pipe; 16. Electromagnetic flowmeter; 17. Solenoid valve; 18. Second oil injection pipe; 19. Discharge pipe 20. Pipe; 21. Receiving groove; 22. First guide plate; 23. Second guide plate; 241. First ball bearing mounting rod; 242. First spring; 243. First limiting block; 25. First connecting slider; 26. Oil drain hose; 27. Second ball bearing mounting rod; 28. First ball bearing; 29. Second ball bearing; 311. Second guide rod; 312. Second spring; 313. Second limiting block; 32. Second connecting slider. Detailed Implementation
[0021] Example 1
[0022] like Figures 1-5 As shown in the figure, the oil injection mechanism for a helical gear reducer proposed in this embodiment includes an annular support plate 1, a lower turntable 3, an upper turntable 5, a first guide plate 21, a second guide plate 22, an oil injection device, multiple second oil injection pipes 18, and multiple material receiving grooves 20.
[0023] An mounting bracket 7 is provided at the upper end of the annular support plate 1, and a bracket 2 is provided at the bottom end of the annular support plate 1; the lower turntable 3 is rotatably mounted on the annular support plate 1, and multiple limiting holes 301 are opened along the annular array on the lower turntable 3, and a support ring 9 is provided on the inner side of each of the multiple limiting holes 301.
[0024] The upper turntable 5 is located directly above the lower turntable 3. The edge of the upper turntable 5 is provided with an annular barrier 6. A rotating tube 4 is vertically arranged at the center of the lower turntable 3. The upper turntable 5 is mounted on the rotating tube 4. A power component for driving the rotating tube 4 to rotate is mounted on the mounting frame 7. The power component includes a servo motor 12, a gear 13 and a gear ring 14. The servo motor 12 is mounted on the mounting frame 7. The gear 13 is connected to the output shaft of the servo motor 12. The gear ring 14 is mounted on the outer periphery of the rotating tube 4 and meshes with the gear 13.
[0025] The second oil injection pipe 18 movably passes through the upper turntable 5. A sealing ring is installed inside the circular hole on the upper turntable 5 through which the second oil injection pipe passes. The second oil injection pipe 18 is connected to a first connecting slider 25. A first elastic component is connected between the first connecting slider 25 and the upper turntable 5. The first elastic component includes a first guide rod 241, a first spring 242, and a first limiting block 243. The first guide rod 241 is vertically arranged on the upper turntable 5. The first guide rod 241 movably passes through the first connecting slider 25 and its top end is connected to the first limiting block 243. The first spring 242 is sleeved on the first guide rod 241. A first ball bearing mounting rod 23 is connected to the first connecting slider 25. A first ball bearing 28 is installed at the end of the first ball bearing mounting rod 23. The first guide plate 21 is located above the upper turntable 5 and is connected to the mounting bracket 7. One side of the first guide plate 21 has a structure that protrudes towards the bottom.
[0026] The receiving groove 20 is slidably installed at the bottom end of the upper turntable 5. A second elastic component is connected between the receiving groove 20 and the upper turntable 5. The second elastic component includes a second guide rod 311, a second spring 312, and two second limiting blocks 313. The two second limiting blocks 313 are arranged side by side at the bottom end of the upper turntable 5. The two ends of the second guide rod 311 are respectively connected to the two second limiting blocks 313. A second connecting slider 32 is connected to the receiving groove 20. The second connecting slider 32 is slidably installed on the second guide rod 311. The second spring 312 is sleeved on the second guide rod 311. A second ball bearing mounting rod 27 is connected to the receiving groove 20. A second ball bearing 29 is installed on the second ball bearing mounting rod 27. A second guide plate 22 is located below the upper turntable 5 and connected to the mounting frame 7. The second guide plate 22 has an arc-shaped structure.
[0027] It should be added that multiple second oil injection pipes 18 are vertically aligned with multiple limiting holes 301, and multiple receiving grooves 20 are vertically aligned with multiple limiting holes 301.
[0028] The oil injection device is installed on the mounting frame 7. The oil injection device includes an oil tank 8, a first oil injection pipe 15, an electromagnetic flow meter 16, and a solenoid valve 17. The oil tank 8 is set on the mounting frame 7. The first oil injection pipe 15 is connected to the oil tank 8. The electromagnetic flow meter 16 and the solenoid valve 17 are both installed on the first oil injection pipe 15.
[0029] It should be added that a control panel 10 is installed on the bracket 2. The control panel 10 adopts a combination of HMI (Human Machine Interface) and PLC (Programmable Logic Controller). The HMI provides users with an intuitive and user-friendly operating interface, and various commands can be easily issued by touching the screen.
[0030] The working principle of this technical solution is as follows:
[0031] In the discharge area, the bottom end of the reducer is limited within the corresponding side limiting hole 301. The support ring 9 is used to limit the reducer. The power component drives the lower turntable 3 to rotate intermittently. When the lower turntable 3 rotates to the oil injection station (i.e., the position adjacent to the first oil injection pipe 15), the oil injection hole on the reducer, the second oil injection pipe 18, and the bottom output of the first oil injection pipe 15 are all vertically aligned. At this time, the first ball 28 contacts the lowest point of the protrusion of the first guide plate 21, causing the second oil injection pipe 18 to move downward and be inserted into the oil injection hole of the reducer. The control panel 10 controls the electromagnetic flowmeter 16 and the solenoid valve 17 to open. When the electromagnetic flowmeter 16 detects that the oil injection volume has reached the set capacity, it controls the solenoid valve 17 to close. Then, the lower turntable 3 continues to rotate. The lower turntable 3 rotates synchronously with the upper turntable 5, and the excess oil dripping from the first oil injection pipe 15 will fall into the lower turntable 3. The oil enters the inner side of the annular enclosure 6, preventing it from dripping directly onto the reducer and the lower turntable 3. The lower turntable 3 continues to rotate. When the first ball bearing 28 leaves the bottom position on the first guide plate 21, the second oil injection pipe 18 is driven upwards by the elastic force of the first spring 242. At this time, the bottom end of the second oil injection pipe 18 is pulled out from the inside of the oil injection hole. Subsequently, the second ball bearing 29 moves to the protruding part on the second guide plate 22, causing the receiving trough 20 to gradually move outwards until it reaches a position directly below the second oil injection pipe 18. This allows excess oil at the bottom of the second oil injection pipe 18 to be collected, preventing dripping onto the reducer or hands during the process of removing the reducer from the lower turntable 3. It should be noted that in the discharge area, the receiving trough 20 is also located below the second oil injection pipe 18, while at the oil injection station, the receiving trough 20 moves out from a position directly below the second oil injection pipe 18.
[0032] In summary, this technical solution can simultaneously realize material feeding, oil injection, and material removal, improving oil injection efficiency. During the oil injection process, excess oil will not drip onto the surface of the reducer or the workstation, avoiding contamination of the reducer and workstation and preventing oil waste.
[0033] Example 2
[0034] like Figure 1 , Figure 2 as well as Figure 5 As shown in the figure, the oil injection mechanism for the helical gear reducer proposed in this embodiment has an opening at the end of the receiving groove 20 away from the rotating tube 4 compared to the first embodiment. The bottom inner side of the receiving groove 20 is provided with an inclined surface. The inclined surface can prevent the oil dripping into the inner side of the receiving groove 20 from overflowing through the end opening of the receiving groove 20. The bottom end of the inclined surface is away from the opening of the receiving groove 20. An oil drain hose 26 is provided between the receiving groove 20 and the rotating tube 4. The oil inside the receiving groove 20 flows back to the inner side of the rotating tube 4 through the oil drain hose 26.
[0035] An oil inlet hole 401 is provided on the rotating pipe 4, and the bottom end of the oil inlet hole 401 is flush with the upper end face of the upper turntable 5. An oil leakage hole is provided at the center of the annular support plate 1. The oil inside the annular enclosure 6 flows into the inside of the rotating pipe 4 through the oil inlet hole 401, and the oil inside the rotating pipe 4 is finally collected and uniformly recycled into the collection device through the oil leakage hole, thus realizing the automatic recycling of oil.
[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. An oil injection mechanism for a helical gear reducer, characterized in that, It includes an annular support plate (1), a lower turntable (3), an upper turntable (5), a first guide plate (21), a second guide plate (22), an oil injection device, multiple second oil injection pipes (18), and multiple material receiving troughs (20); A mounting bracket (7) is provided at the upper end of the annular support plate (1), and a bracket (2) is provided at the bottom end of the annular support plate (1); the lower turntable (3) is rotatably mounted on the annular support plate (1), and multiple limiting holes (301) are opened along the annular array on the lower turntable (3), and a support ring (9) is provided on the inner side of each of the multiple limiting holes (301); the upper turntable (5) is located directly above the lower turntable (3), and an annular enclosure (6) is provided on the edge of the upper turntable (5); a rotating tube (4) is vertically arranged at the center of the lower turntable (3), and the upper turntable (5) is mounted on the rotating tube (4). A power component for driving the rotating tube (4) to rotate is installed on the mounting bracket (7); the second oil injection pipe (18) movably passes through the upper turntable (5), and a first connecting slider (25) is connected to the second oil injection pipe (18). The first connecting slider (25) is connected to the upper turntable (5). A first elastic component is connected between the discs (5), a first ball bearing mounting rod (23) is connected to the first connecting slider (25), and a first ball bearing (28) is installed at the end of the first ball bearing mounting rod (23); a first guide plate (21) is located above the upper turntable (5) and connected to the mounting frame (7), and one side of the first guide plate (21) has a structure that protrudes towards the bottom; a receiving groove (20) is slidably installed at the bottom end of the upper turntable (5), a second elastic component is connected between the receiving groove (20) and the upper turntable (5), a second ball bearing mounting rod (27) is connected to the receiving groove (20), and a second ball bearing (29) is installed on the second ball bearing mounting rod (27); a second guide plate (22) is located below the upper turntable (5) and connected to the mounting frame (7), and the second guide plate (22) has an arc-shaped structure; an oil injection device is installed on the mounting frame (7).
2. The oil injection mechanism for a helical gear reducer according to claim 1, characterized in that, The receiving trough (20) is open at one end away from the rotating pipe (4). The bottom of the inner side of the receiving trough (20) is provided with an inclined surface. The bottom of the inclined surface is away from the opening of the receiving trough (20). An oil drain hose (26) is provided between the receiving trough (20) and the rotating pipe (4).
3. The oil injection mechanism for a helical gear reducer according to claim 2, characterized in that, An oil inlet hole (401) is provided on the rotating tube (4), and the bottom end of the oil inlet hole (401) is flush with the upper end face of the upper turntable (5); an oil leakage hole is provided at the center of the annular support plate (1).
4. The oil injection mechanism for a helical gear reducer according to claim 1, characterized in that, The power assembly includes a servo motor (12), a gear (13) and a gear ring (14). The servo motor (12) is mounted on the mounting bracket (7). The gear (13) is connected to the output shaft of the servo motor (12). The gear ring (14) is mounted on the outer periphery of the rotating tube (4) and meshes with the gear (13).
5. The oil injection mechanism for a helical gear reducer according to claim 1, characterized in that, The first elastic component includes a first guide rod (241), a first spring (242), and a first limiting block (243). The first guide rod (241) is vertically mounted on the upper turntable (5). The first guide rod (241) movably passes through the first connecting slider (25) and its top end is connected to the first limiting block (243). The first spring (242) is sleeved on the first guide rod (241).
6. The oil injection mechanism for a helical gear reducer according to claim 1, characterized in that, The second elastic component includes a second guide rod (311), a second spring (312), and two second limiting blocks (313). The two second limiting blocks (313) are arranged side by side at the bottom of the upper turntable (5). The two ends of the second guide rod (311) are respectively connected to the two second limiting blocks (313). A second connecting slider (32) is connected to the receiving groove (20). The second connecting slider (32) is slidably arranged on the second guide rod (311). The second spring (312) is sleeved on the second guide rod (311).
7. The oil injection mechanism for a helical gear reducer according to claim 1, characterized in that, The oil injection device includes an oil tank (8), a first oil injection pipe (15), an electromagnetic flow meter (16), and a solenoid valve (17). The oil tank (8) is mounted on the mounting bracket (7). The first oil injection pipe (15) is connected to the oil tank (8). The electromagnetic flow meter (16) and the solenoid valve (17) are both mounted on the first oil injection pipe (15).