Reinforced speed reducer with vertical structure

Abstract

The utility model discloses a reinforced speed reducer with a vertical structure. The reinforced speed reducer comprises a gear box body (1), an upper rack (9), an upper bearing seat (12) and an output shaft bearing seat (8), wherein the upper rack (9) is fixedly connected to the top of the gear box body (1); the upper bearing seat (12) is fixedly arranged at the top of the upper rack (9); a first bearing (11) is arranged in the upper bearing seat (12), and a second bearing (7) is arranged in the output shaft bearing seat (8); the upper end of the output shaft (6) sequentially penetrates through the gear box body (1) and the upper rack (9) and is supported in the first bearing (11), and the lower end of the output shaft (6) is supported in the second bearing (7), so that a two-end supporting structure for the upper end and the lower end of the output shaft (6) is formed. The supporting rigidity and the deflection resistance of the output shaft are obviously improved; meanwhile, a disassembly-free maintenance lubricating structure composed of the oil nozzle, the upper protective cover and the sealing plug is integrated at the upper bearing seat, and sealing protection and maintenance convenience are both considered.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical transmission equipment, specifically relating to a reinforced vertical structure reducer. Background Technology

[0002] The speed reducer is the core component of the mixing equipment. Its operational stability directly affects the mixing effect and equipment life. In heavy-duty mixing applications such as solid-liquid separation and chemical reactions, the mixing shaft often experiences large radial runout and axial impact due to factors such as uneven material distribution and tank deviation. This runout and impact will react on the output shaft of the speed reducer and its internal bearings, leading to abnormal bearing wear, abnormal equipment vibration and noise, and in severe cases, even bearing damage and equipment shutdown.

[0003] In existing technologies, to address the swaying of the stirring shaft, an auxiliary support for the output shaft is typically provided by adding a bearing housing outside the gearbox. For example, Chinese patent document CN208097995U discloses a dedicated reducer for stirring, which has a second bearing housing fitted onto the right end of the stirring drive shaft to increase the support point. However, in this solution, the external bearing housing and the internal support structure are relatively independent, and their coordination is insufficient, resulting in limited contribution to improving overall rigidity and anti-sway capability. Furthermore, under harsh operating conditions, bearing maintenance is inconvenient, requiring the removal of the protective structure to add grease. Utility Model Content

[0004] The present invention aims to solve the problems of insufficient anti-sway capability and poor operational stability of existing reducers under heavy load conditions, and to provide a reinforced reducer with optimized structure, stable support and easy maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a reinforced vertical structure reducer includes a gearbox housing with an output shaft inside; an upper frame is fixedly connected to the top of the gearbox housing; an upper bearing seat is fixedly disposed on the top of the upper frame, and a first bearing is disposed within the upper bearing seat; an output shaft bearing seat is fixedly disposed at the bottom of the gearbox housing, and a second bearing is disposed within the output shaft bearing seat; the upper end of the output shaft passes through the gearbox housing and the upper frame in sequence and is supported within the first bearing, and the lower end of the output shaft is supported within the second bearing. The upper and lower ends of the output shaft are supported by the upper bearing seat located outside the gearbox housing and the output shaft bearing seat located inside the gearbox housing, respectively, and an extended bearing support span is formed between the first bearing and the second bearing.

[0006] Furthermore, an upper bearing housing cover is detachably fixedly connected to the top of the upper bearing housing, and the upper bearing housing cover is provided with a through grease filling port, and an oil nozzle is provided inside the grease filling port.

[0007] Furthermore, an upper protective cover is provided above the upper bearing seat cover, the upper protective cover covers the upper bearing seat cover and is fixedly connected to the upper bearing seat, and an operation hole is provided on the upper protective cover corresponding to the position of the oil nozzle, and a sealing plug is detachably provided in the operation hole.

[0008] Furthermore, a skeleton oil seal is provided at the connection between the lower end of the upper bearing housing and the upper frame.

[0009] Furthermore, the first bearing is a deep groove ball bearing, and the second bearing is a pair of tapered roller bearings.

[0010] Furthermore, the gearbox body is provided with an output gear assembly that is connected to the output shaft for transmission, and the output gear assembly is provided with a lubrication channel to guide lubricating oil into the second bearing.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] First, by supporting the upper and lower ends of the output shaft on the external upper bearing housing and the internal output shaft bearing housing respectively, a two-end support structure with extended span is formed, which significantly improves the support rigidity and anti-sway capability of the output shaft, ensuring the stable operation of the reducer under heavy load conditions.

[0013] Second, the upper bearing housing is integrated with the gearbox body through the upper frame, forming a complete collaborative support system together with the internal support structure, resulting in strong overall structural integrity.

[0014] Third, by integrating the grease nipple on the upper bearing housing cover and combining it with the upper protective cover with an operating hole and a sealing plug, a maintenance-free lubrication system is constructed, which takes into account both sealing protection and maintenance convenience, and extends the service life of the bearing and the whole machine. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a reinforced vertical reducer according to the present invention;

[0016] Figure 2 This is a partial schematic diagram of a reinforced vertical structure reducer according to the present invention.

[0017] The following are the labels in the diagram: 1. Gearbox housing; 2. Grease filling port; 3. Oil nozzle; 4. Operating hole; 5. Output gear assembly; 6. Output shaft; 7. Second bearing; 8. Output shaft bearing housing; 9. Upper frame; 10. Skeleton oil seal; 11. First bearing; 12. Upper bearing housing; 13. Upper bearing housing cover; 14. Upper protective cover; 15. Sealing plug. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustration and description purposes only, and are not intended to be exhaustive or to limit the present invention to the forms disclosed.

[0019] Please see Figures 1 to 2 A reinforced vertical structure reducer includes a gearbox 1 with an output shaft 6 inside; an upper frame 9 is fixedly connected to the top of the gearbox 1; an upper bearing housing 12 is fixedly installed on the top of the upper frame 9, and a first bearing 11 is installed inside the upper bearing housing 12; an output shaft bearing housing 8 is fixedly installed at the bottom of the gearbox 1, and a second bearing 7 is installed inside the output shaft bearing housing 8; the upper end of the output shaft 6 passes through the gearbox 1 and the upper frame 9 in sequence and is supported in the first bearing 11, and the lower end of the output shaft 6 is supported in the second bearing 7. The upper and lower ends of the output shaft 6 are supported by the upper bearing housing 12 located outside the gearbox 1 and the output shaft bearing housing 8 located inside the gearbox 1, respectively, and an extended bearing support span is formed between the first bearing 11 and the second bearing 7.

[0020] The first bearing 11 can be directly lubricated from the outside for maintenance, and it has the following features:

[0021] The top of the upper bearing housing 12 is detachably fixedly connected to the upper bearing housing cover 13, and the upper bearing housing cover 13 is provided with a through grease filling port 2, and the grease filling port 2 is provided with an oil nozzle 3.

[0022] An upper protective cover 14 is provided above the upper bearing housing cover 13. The upper protective cover 14 covers the upper bearing housing cover 13 and is fixedly connected to the upper bearing housing 12. An operating hole 4 is provided on the upper protective cover 14 at the position corresponding to the oil nozzle 3. A sealing plug 15 is detachably provided in the operating hole 4.

[0023] During routine maintenance, simply pull out the sealing plug 15 to access the grease nipple 3 through the operating hole 4 for grease application. After grease application, replace the sealing plug 15 without disassembling any parts.

[0024] To ensure that the first bearing 11 is adequately lubricated within the upper bearing housing 12 and to prevent grease leakage, the following features are provided:

[0025] A skeleton oil seal 10 is provided at the connection between the lower end of the upper bearing housing 12 and the upper frame 9.

[0026] The first bearing 11 is a deep groove ball bearing, and the second bearing 7 is a pair of tapered roller bearings.

[0027] The gearbox 1 is equipped with an output gear assembly 5 that is connected to the output shaft 6. The output gear assembly 5 is provided with a lubrication channel to guide the lubricating oil into the second bearing 7.

[0028] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A reinforced vertical construction speed reducer characterized by, The utility model relates to a gear box body (1) is provided with output shaft (6) inside, upper rack (9) fixed connection is located gear box body (1) top, upper bearing seat (12) fixed setting is located upper rack (9) top, first bearing (11) are equipped in the upper bearing seat (12), output shaft bearing seat (8) fixed setting is located gear box body (1) inside bottom end, second bearing (7) are equipped in the output shaft bearing seat (8), the upper end of output shaft (6) passes through gear box body (1) and upper rack (9) in proper order and is supported in first bearing (11), the lower end of output shaft (6) is supported in second bearing (7), the upper and lower ends of output shaft (6) are supported by the upper bearing seat (12) of being located gear box body (1) outside and the output shaft bearing seat (8) of being located gear box body (1) inside respectively, and form a elongated bearing support span between first bearing (11) and second bearing (7). The top of the upper bearing seat (12) is detachably fixedly connected with an upper bearing seat gland (13), the upper bearing seat gland (13) is provided with a grease filling port (2) penetrating through, and the grease filling port (2) is provided with an oil nozzle (3) therein.

2. A reinforced vertical construction speed reducer according to claim 1, characterized in that: An upper protective cover (14) is arranged above the upper bearing seat gland (13), the upper protective cover (14) covers the upper bearing seat gland (13) and is fixedly connected with the upper bearing seat (12), an operation hole (4) is formed in the upper protective cover (14) corresponding to the position of the oil nozzle (3), and a sealing plug (15) is detachably arranged in the operation hole (4).

3. A reinforced vertical construction speed reducer according to claim 2, characterized in that: A skeleton oil seal (10) is arranged at the connection between the lower end of the upper bearing seat (12) and the upper rack (9).

4. The reinforced vertical structure speed reducer according to claim 1, characterized in that: The first bearing (11) is a deep groove ball bearing, and the second bearing (7) is a pair of conical roller bearings.

5. A reinforced vertical construction speed reducer according to claim 1, characterized in that: An output gear assembly (5) is arranged in the gear box body (1) and is in transmission connection with the output shaft (6), the output gear assembly (5) is provided with a lubricating channel to guide lubricating oil into the second bearing (7).

6. A reinforced vertical construction speed reducer according to claim 1, characterized in that: ​

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