Side stirring speed reducer

Abstract

The utility model relates to the field of transmission devices, in particular to a side stirring speed reducer. A side stirring speed reducer comprises a reduction gearbox and a motor connecting seat located above the reduction gearbox, an access hole is formed in the motor connecting seat, an input hole is formed in the upper end of the reduction gearbox, an input device is installed in the input hole, and the input device comprises an input seat shell, an input cover located above the input seat shell and an input rotating shaft penetrating through the input seat shell and the input cover. The input seat shell is provided with a bolt penetrating through the input seat shell to connect the input seat shell with the reduction gearbox, the input cover is located above the input seat shell, a through hole is formed in the position, corresponding to the bolt, of the input cover, when the input seat shell is covered with the input cover, a bolt head of the bolt is located in the through hole, and an input oil seal is arranged in the center of the input cover. The outer side of the input oil seal abuts against the input cover, and the inner side of the input oil seal abuts against the side wall of the input rotating shaft. After the coupler is detached, the input cover is directly lifted upwards to be opened, and compared with an existing side stirring speed reducer, the side stirring speed reducer is more convenient to overhaul.

Description

Technical Field

[0001] The present application relates to the field of transmission devices, and in particular to a side stirring reducer. Background Art

[0002] A speed reducer is a mechanical device typically used to reduce input speed and increase torque accordingly. It achieves this function through gear transmission and is an integral part of industrial automation and mechanical engineering. Speed reducers are used in a variety of equipment and systems, such as conveyor belts, mixers, elevators, and robotic arms.

[0003] Conventional reducers have shafts that enter and exit in opposite directions. When used in side-by-side agitators, mounting the motor and reducer on the side wall of the agitator would require a significant amount of lateral space due to the excessive length of the combined motor and reducer. Therefore, existing side-by-side agitator reducers utilize a top-mounted motor for input power, with a side-mounted output shaft connected to the agitator shaft to reduce lateral space. However, the maintenance design of existing side-by-side agitator reducers remains unchanged, making maintenance inconvenient. Utility Model Content

[0004] In order to facilitate maintenance, this application provides a side stirring reducer.

[0005] This application provides a side stirring reducer, which adopts the following technical solution:

[0006] A side-stirring reducer comprises a reduction gearbox and a motor connecting seat located above the reduction gearbox, the motor connecting seat being provided with an inspection port, an input hole being formed at the upper end of the reduction gearbox, an input device being installed in the input hole, the input device comprising an input seat shell, an input cover located above the input seat shell, an input rotating shaft passing through the input seat shell and the input cover, the input seat shell being provided with bolts passing through the input seat shell to connect the input seat shell to the reduction gearbox, the input cover being located above the input seat shell, a through hole being provided on the input cover at a position corresponding to the bolt, when the input cover is covered on the input seat shell, the bolt head of the bolt being located in the through hole, an input oil seal being provided at the center of the input cover, the outer side of the input oil seal abuts against the input cover, and the inner side of the input oil seal abuts against the side wall of the input rotating shaft.

[0007] By adopting this technical solution, when inspecting the side-stirring reducer, the input cover can be directly lifted upward after removing the coupling through the inspection port, making maintenance more convenient than existing side-stirring reducers. Because the input cover is installed vertically and its rotation is restricted by the bolt heads, it can be used in conjunction with the input oil seal inside to serve as a sealing cover during normal use without affecting its function.

[0008] Preferably, the input seat housing is annular, and the input device also includes an input bearing for supporting the input rotating shaft, the input bearing including an upper input bearing connected to the input rotating shaft near the upper end and a lower input bearing arranged on the input rotating shaft near the lower end. A lower retaining spring abutting against the outer ring of the lower input bearing is embedded in the inner wall of the input seat housing at a position above the lower input bearing, and an oil sealing limit plate abutting against the inner ring of the lower input bearing is provided at the lower end of the input rotating shaft.

[0009] By adopting the above technical solution, the inner ring of the lower input bearing is pressed against the oil sealing limit plate, and the outer ring of the lower input bearing is pressed against the lower retaining spring, so that the input shaft is limited relative to the lower input bearing under the cooperation of the two, and will not move up and down significantly during rotation.

[0010] Preferably, a circle of oil-sealing baffle is formed on the outer circumference of the oil-sealing limit plate, a gap is left between the outer wall of the oil-sealing baffle and the inner wall of the input seat shell, a gap is left between the oil-sealing baffle and the outer ring of the lower input bearing, and the inner diameter of the oil-sealing baffle is larger than the inner diameter of the lower end of the outer ring of the lower input bearing.

[0011] By adopting this technical solution, the oil seal retains the lubricating oil injected into the input housing, preventing it from escaping. A gap exists between the outer wall of the oil seal, the inner wall of the input housing, and the outer ring of the lower input bearing, preventing relative friction and wear during rotation. Furthermore, the inner diameter of the oil seal is larger than the lower end of the outer ring of the lower input bearing, ensuring that oil flowing from the bearing enters the space within the oil seal and prevents it from escaping through the gap between the oil seal and the input housing.

[0012] Preferably, an upper retaining spring abutting against the outer ring of the upper input bearing is embedded on the inner wall of the input seat housing below the upper input bearing, and a bearing nut abutting against the inner ring of the upper input bearing is threadedly connected to the input shaft above the upper input bearing.

[0013] By adopting the above technical solution, the upper retaining spring and the bearing nut cooperate to limit the relative position of the upper input bearing and the input rotating shaft, so that they will not move up and down significantly relative to each other during the rotation process.

[0014] Preferably, the input cover is provided with an openable and closable oil filling port.

[0015] By adopting the above technical solution and providing an oil filling port, lubricating oil can be replenished without opening the input cover, which is more convenient.

[0016] Preferably, the two side walls of the reducer are respectively formed with an output port and an operating port facing the output port, an output device is installed in the reducer, the output device includes an output shaft spanning the output port and the operating port, the output shaft is provided with an output bevel gear meshing with the input bevel gear, the reducer is provided with an openable and closable operating cover at the operating port, the reducer is provided with an equipment connection seat at the output port, and the equipment connection seat is provided with an inspection port.

[0017] By adopting the above technical solution, an inspection port and an openable and closable operating cover are provided to facilitate the inspection of the output device part inside the reduction gearbox.

[0018] Preferably, the output shaft is a hollow shaft, and both ends of the output shaft are connected with expansion sleeves for connecting to the stirring shaft of the side mixer.

[0019] By adopting the above technical solution, high centering precision installation with the stirring shaft is achieved through the cooperation of the hollow shaft and the expansion sleeve, and the assembly and disassembly is convenient and the connection is stable.

[0020] Preferably, the output shaft is key-connected to the output bevel gear, a boss is formed on the right side of the output bevel gear to abut the right end face of the output bevel gear, and a gear nut is threadedly connected on the left side of the output bevel gear.

[0021] By adopting the above technical solution, the position of the output bevel gear on the output shaft is fixed by the gear nut and the boss, so that the output bevel gear can be stably engaged with the input bevel gear.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. When inspecting the side stirring reducer, you can directly lift the input cover upwards and open it after removing the coupling through the inspection port. Compared with the existing side stirring reducer, it is more convenient to inspect.

[0024] 2. While the lower input bearing is limited by the oil seal limit plate, the oil seal stop edge on the oil seal limit plate allows the lubricating oil injected into the input seat housing to remain inside and not flow out. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the structure after the embodiment and the motor are assembled;

[0026] Figure 2 is a schematic structural diagram of an input device in an embodiment;

[0027] Figure 3 Schematic diagram of the structure of the output device in the embodiment.

[0028] Explanation of the accompanying symbols: 1. Gearbox; 2. Motor connecting seat; 3. Equipment connecting seat; 4. Inspection port; 5. Input hole; 6. Input device; 7. Input seat shell; 8. Input cover; 9. Input rotating shaft; 10. Input bevel gear; 11. Input seat body; 12. Input abutment plate; 13. Through hole; 14. Input oil seal; 15. Oil filling port; 16. Upper input bearing; 17. Lower input bearing; 18. Upper retaining spring; 19. Bearing nut; 20. Lower retaining spring; 21. Input limit plate; 22. Oil seal limit plate; 23. Oil seal baffle; 24. Output port; 25. Operating port; 26. Output device; 27. Output rotating shaft; 28. Output bearing; 29. Output bevel gear; 30. Operating cover; 31. Expansion sleeve; 32. Boss; 33. Gear nut; 34. Output oil seal. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 This application is described in further detail.

[0030] An embodiment of the present application provides a side stirring reducer. The "up", "down", "left" and "right" used in the embodiment are all schematic diagrams used to describe the relative directions of the positional relationship, and are not limitations of the positional relationship.

[0031] like Figure 1 As shown, the side mixing reducer includes a reduction box 1, a motor connection base 2 located above the reduction box 1, and an equipment connection base 3 located on the right side of the reduction box 1. The motor connection base 2 and the equipment connection base 3 are both connected to the reduction box 1 by bolts, and an inspection port 4 is provided on the motor connection base 2 and the equipment connection base 3.

[0032] like Figure 1 and Figure 2 As shown, an input hole 5 is formed at the upper end of the reduction gearbox 1, and an input device 6 is installed in the input hole 5. The input device 6 includes an input housing 7, an input cover 8 located above the input housing 7, an input shaft 9 passing through the input housing 7 and the input cover 8, two input bearings for supporting the input shaft 9, and an input bevel gear 10 connected to the lower end of the input shaft 9.

[0033] like Figure 2As shown, the input housing 7 includes an annular input housing 11 and an input abutment plate 12 extending outward from the upper end of the input housing 11. The input abutment plate 12 abuts the upper end surface of the reduction gearbox 1, securing the input housing 7 via bolts. An input cover 8 is positioned above the input housing 7. A through-hole 13 is provided on the input cover 8 at a position corresponding to the bolts, such that the bolt heads fit within the through-hole 13, restricting the rotation of the input cover 8. An input oil seal 14 is centrally located on the input cover 8. The outer side of the input oil seal 14 abuts the input cover 8, while the inner side of the input oil seal 14 abuts the sidewall of the input shaft 9. The input cover 8 is also provided with an openable and closable oil filling port 15.

[0034] like Figure 2 As shown, the input bearings include an upper input bearing 16 connected to the input shaft 9 near its upper end, and a lower input bearing 17 located near its lower end. Both upper and lower input bearings 16, 17 are tapered roller bearings and are symmetrically mounted. An upper retaining spring 18 is embedded in the inner wall of the input housing 7, below the upper input bearing 16, and abuts the outer ring of the upper input bearing 16. A bearing nut 19 is threadedly connected to the input shaft 9, above the upper input bearing 16, and abuts the inner ring of the upper input bearing 16. A lower retaining spring 20 is embedded in the inner wall of the input seat housing 7 at a position above the lower input bearing 17, and the lower end of the input rotating shaft 9 is integrally formed with a circle of annular input limit plate 21. An oil sealing limit plate 22 is sleeved on the position above the input limiting plate 21 on the input rotating shaft 9. The upper end surface of the oil sealing limit plate 22 abuts the inner ring of the lower input bearing 17, and a circle of oil sealing baffle 23 is formed on the outer circumference of the oil sealing limit plate 22. There is a gap between the outer side wall of the oil sealing baffle 23 and the inner wall of the input seat housing 7, and there is a gap between the oil sealing baffle 23 and the outer ring of the lower input bearing 17, and the inner diameter of the oil sealing baffle 23 is larger than the inner diameter of the lower end of the outer ring of the lower input bearing 17.

[0035] like Figure 1 and Figure 3 As shown, the right side wall of the reduction gearbox 1 is formed with an output port 24, and the left side wall is formed with an operating port 25 facing the output port 24. An output device 26 is installed within the reduction gearbox 1, spanning the output port 24 and the operating port 25. The output device 26 includes an output shaft 27, output bearings 28 at both ends of the output shaft 27 for rotationally connecting the output shaft 27 to the reduction gearbox 1, and an output bevel gear 29 fixed to the output shaft 27 and meshing with the input bevel gear 10. An operating cover 30 is bolted to the left side of the reduction gearbox 1 at the operating port 25. This cover seals the reduction gearbox 1 to prevent dust and other particles from entering the reduction gearbox 1 from the outside and can be opened when needed.

[0036] like Figure 3As shown, the output shaft 27 is a hollow shaft. Expansion sleeves 31 are attached to each end of the output shaft 27 for connection to the side mixer's agitator shaft. The output shaft 27 is keyed to the output bevel gear 29. A boss 32 is formed on the output shaft 27, located to the right of the output bevel gear 29, and abuts the right end face of the output bevel gear 29. A gear nut 33 is threadedly attached to the output shaft 27, located to the left of the output bevel gear 29. When tightened, the gear nut abuts the left side of the output bevel gear 29. Output oil seals 34 are installed on the outer sides of both ends of the output shaft 27.

[0037] Specific usage process:

[0038] Insert the side mixer's agitator shaft into the output shaft 27 and tighten the bolts on the expansion sleeve 31. The expansion sleeve 31 contracts inward, pressing against the agitator shaft, securing the output shaft 27 relative to the agitator shaft. The motor's drive shaft is connected to the input shaft 9 via a coupling, securing the two shafts relative to each other. When the motor outputs drive power, it is transmitted through the input shaft 9, then through the input bevel gear 10 and the output bevel gear 29, amplifying torque and reducing speed. Ultimately, the output shaft 27 drives the agitator shaft.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A side stirring reducer, comprising a reduction box (1) and a motor connection seat (2) located above the reduction box (1), wherein the motor connection seat (2) is provided with an inspection port (4), and is characterized in that: An input hole (5) is formed at the upper end of the reduction box (1), and an input device (6) is installed in the input hole (5). The input device (6) includes an input seat shell (7), an input cover (8) located above the input seat shell (7), and an input rotating shaft (9) passing through the input seat shell (7) and the input cover (8). The input seat shell (7) is provided with bolts that pass through the input seat shell (7) to connect the input seat shell (7) with the reduction box (1). The input cover (8) is located above the input seat shell (7). A through hole (13) is opened on the input cover (8) at a position corresponding to the bolt. When the input cover (8) is covered on the input seat shell (7), the bolt head of the bolt is located in the through hole (13). An input oil seal (14) is provided at the center of the input cover (8). The outer side of the input oil seal (14) abuts against the input cover (8), and the inner side of the input oil seal (14) abuts against the side wall of the input rotating shaft (9).

2. The side stirring reducer according to claim 1, characterized in that: The input housing (7) is annular, and the input device (6) further includes an input bearing for supporting the input rotating shaft (9), wherein the input bearing includes an upper input bearing (16) connected to the input rotating shaft (9) near the upper end and a lower input bearing (17) arranged on the input rotating shaft (9) near the lower end. A lower retaining spring (20) is embedded on the inner wall of the input housing (7) at a position above the lower input bearing (17) and abuts against the outer ring of the lower input bearing (17). An oil sealing limit plate (22) is provided at the lower end of the input rotating shaft (9) and abuts against the inner ring of the lower input bearing (17).

3. The side stirring reducer according to claim 2, characterized in that: An oil sealing baffle (23) is formed on the outer circumference of the oil sealing limit plate (22), a gap is left between the outer wall of the oil sealing baffle (23) and the inner wall of the input seat shell (7), a gap is left between the oil sealing baffle (23) and the outer ring of the lower input bearing (17), and the inner diameter of the oil sealing baffle (23) is larger than the inner diameter of the lower end of the outer ring of the lower input bearing (17).

4. The side stirring reducer according to claim 2 or 3, characterized in that: An upper retaining spring (18) is embedded on the inner wall of the input housing (7) at a position below the upper input bearing (16) and is in contact with the outer ring of the upper input bearing (16); a bearing nut (19) is threadedly connected to a position above the upper input bearing (16) on the input shaft (9) and is in contact with the inner ring of the upper input bearing (16).

5. The side stirring reducer according to claim 1, characterized in that: The input cover (8) is provided with an openable and closable oil filling port (15).

6. The side stirring reducer according to claim 1, characterized in that: An output port (24) and an operating port (25) facing the output port (24) are respectively formed on both side walls of the reduction box (1). An output device (26) is installed in the reduction box (1). The output device (26) comprises an output rotating shaft (27) spanning the output port (24) and the operating port (25). An output bevel gear (29) meshing with an input bevel gear (10) is provided on the output rotating shaft (27). An openable and closable operating cover (30) is provided at the operating port (25) of the reduction box (1). An equipment connection seat (3) is provided at the output port (24) of the reduction box (1), and an inspection port (4) is provided on the equipment connection seat (3).

7. The side stirring reducer according to claim 6, characterized in that: The output rotating shaft (27) is a hollow shaft, and both ends of the output rotating shaft (27) are connected with expansion sleeves (31) for connecting to the stirring shaft of the side mixer.

8. The side stirring reducer according to claim 6 or 7, characterized in that: The output shaft (27) is key-connected to the output bevel gear (29); a boss (32) is formed on the output shaft (27) at a position on the right side of the output bevel gear (29) and abuts against the right end surface of the output bevel gear (29); a gear nut (33) is threadedly connected to the position on the output shaft (27) at a position on the left side of the output bevel gear (29).

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