A gearbox that is easy to assemble

Abstract

This utility model discloses a gearbox that is easy to assemble, including a housing. The upper end face of the housing is provided with an end cover. The end cover and the outer wall of the housing are respectively provided with mounting grooves. The mounting grooves are provided with transmission components. The connection positions of the end cover and the housing are provided with threaded holes. Multiple threaded holes are provided, and each threaded hole is provided with a connecting screw. The outer end of the connecting screw, located on the upper end face of the end cover, is fixed with a protective ring. The upper end of the protective ring is provided with a limiting ring. The bottom of the limiting ring is provided with a threaded ring. Thus, the user can screw the connecting screw into the threaded hole on the housing to fix the end cover and the housing, which is convenient for assembly. In addition, the user can screw the limiting ring onto the upper end of the protective ring to limit the connecting screw and prevent it from being lost.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and more specifically, to a gearbox that is easy to assemble. Background Technology

[0002] A gearbox (also known as a reducer or gear setter) is a core transmission device in industrial equipment for power regulation. Through gear meshing or worm gear engagement, it converts the high-speed, low-torque output of a motor or engine into the low-speed, high-torque power required by the equipment. Its design principle is based on the law of conservation of energy, proportionally amplifying torque while reducing speed, thus meeting the operating requirements of different mechanical equipment. During the production process, the end caps of the gearbox require assembly.

[0003] However, most traditional assembly methods use bolts for fixing. Since the bolts and nuts are separate, the two parts need to be assembled separately during the assembly process, which is time-consuming and laborious. Also, because they are separate, they are prone to being lost.

[0004] Furthermore, when using a gearbox, the internal gears need to be lubricated to ensure its long-term use. However, traditional lubrication methods often require disassembling the gearbox, which is cumbersome and affects maintenance efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a gearbox that is easy to assemble, so as to solve the technical problem mentioned in the background art that most of the traditional assembly methods are fixed by bolts. Since the bolts and nuts are set separately, the two parts need to be assembled separately during the assembly process, and they are prone to being lost.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gearbox that is easy to assemble, comprising a housing, an end cover on the upper surface of the housing, mounting grooves corresponding to the outer wall of the end cover and the housing, a transmission component inside the mounting groove, threaded holes at the connection positions of the end cover and the housing, multiple threaded holes, each containing a connecting screw, a protective ring fixedly attached to the outer end of the connecting screw and located on the upper surface of the end cover, a limiting ring at the upper end of the protective ring, a threaded ring at the bottom of the limiting ring, the threaded ring being threadedly connected to the inner wall of the protective ring, a partition fixedly attached to the inner wall of the housing and located at the lower end of the transmission component, oil leakage holes being provided on the partition, multiple oil leakage holes being provided and evenly distributed.

[0009] The present invention is further configured such that an oil injection pipe is fixedly provided on the upper end surface of the partition and located in the middle position, and an oil injection head is provided on the outer wall of the oil injection pipe and located at the upper end. Multiple oil injection heads are provided and evenly distributed. All oil injection heads are located at the lower end of the transmission component, which facilitates the lubrication of the transmission component.

[0010] The present invention is further configured such that a pump body is fixedly provided on the inner wall of the housing and at the bottom, and a connecting pipe is provided at the output end of the pump body. The other end of the connecting pipe is connected to the inside of the oil injection pipe, so as to facilitate the guiding of lubricating oil into the oil injection pipe.

[0011] The present invention is further configured such that a first threaded ring is fixedly provided at the outer end of the mounting groove and on the outer wall of the housing, and a second threaded ring is correspondingly provided on the outer wall of the end cover. A locking plate is slidably provided at the outer ends of both the first and second threaded rings, and a locking nut is provided on the outer wall of both the first and second threaded rings. The locking nuts abut against the outer wall of the locking plate, which facilitates the locking installation of the end cover and the housing.

[0012] The present invention is further provided with positioning posts fixedly provided on the inner wall of the locking plate and at the four corners, and positioning holes correspondingly provided on the outer walls of the housing and the end cover, with the positioning posts located inside the positioning holes, so as to facilitate the positioning and installation of the locking plate.

[0013] The present invention is further provided that a refueling pipe is fixedly provided on one side of the housing, and the refueling pipe is provided with a sealing plug inside to facilitate the addition of lubricating oil into the housing.

[0014] The present invention is further provided that an oil drain pipe is fixedly provided on the outer wall of the housing and at the bottom, and an oil drain valve is provided on the oil drain pipe to facilitate the discharge of lubricating oil for easy replacement.

[0015] The present invention is further provided that the upper end face of each connecting screw is provided with an internal hexagonal groove, which is located inside the limiting ring, so as to facilitate the assembly and disassembly of the connecting screw.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a gearbox that is easy to assemble and has the following advantages:

[0018] 1. By setting end caps, threaded holes, connecting screws, and protective rings, users can screw the connecting screws into the threaded holes on the housing to fix the end caps and housing, facilitating assembly. Users can also screw the limiting ring onto the upper end of the protective ring to limit the connecting screws and prevent them from being lost.

[0019] 2. By setting up a baffle, oil drain hole, pump body and oil nozzle, the user can control the pump body to guide the lubricating oil inside the housing into the oil injection pipe and spray it out through the oil nozzle, so that the lubricating oil can lubricate the transmission components. Excess lubricating oil will return to the bottom of the housing through the oil drain hole for continued use.

[0020] 3. By setting a locking plate, locking nut and positioning pin, after the end cover and housing are assembled together, the locking plate can be slidably installed on the outer end of the first and second threaded rings so that the positioning pin enters the positioning hole. Then, the locking nut is tightened to make it abut against the outer wall of the locking plate, thereby further increasing the stability of the connection between the end cover and housing and facilitating use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a gearbox in its unused state, which is easy to assemble.

[0022] Figure 2 Exploded view of the housing, end caps, connecting screws, limit rings, locking plates, and locking nuts.

[0023] Figure 3 This is an overall sectional view of a gearbox designed for easy assembly.

[0024] Figure 4 Exploded view of the installation of connecting screws and limiting rings on the end cap;

[0025] Figure 5 Exploded view of the housing, end caps, and locking plate assembly;

[0026] Figure 6 A schematic diagram showing the locations of the oil filler pipe, oil drain pipe, and oil drain valve on the casing.

[0027] In the diagram: 1. Housing; 2. End cap; 3. Mounting groove; 4. Transmission assembly; 5. Threaded hole; 6. Connecting screw; 7. Protective ring; 8. Limiting ring; 9. Partition plate; 10. Oil leakage hole; 11. Injection pipe; 12. Injection head; 13. Pump body; 14. Connecting pipe; 15. First threaded ring; 16. Second threaded ring; 17. Locking plate; 18. Locking nut; 19. Positioning pin; 20. Positioning hole; 21. Filling pipe; 22. Sealing plug; 23. Oil drain pipe; 24. Oil drain valve; 25. Internal hexagonal groove. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-6 A gearbox designed for easy assembly includes a housing 1. An end cap 2 is provided on the upper surface of the housing 1. Mounting grooves 3 are correspondingly provided on both the end cap 2 and the outer wall of the housing 1. A transmission component 4 is located inside the mounting grooves 3. Threaded holes 5 are provided at the connection points between the end cap 2 and the housing 1. Multiple threaded holes 5 are provided, and each threaded hole 5 contains a connecting screw 6. A protective ring 7 is fixedly provided at the outer end of the connecting screw 6, located on the upper surface of the end cap 2. A limiting ring 8 is provided at the upper end of each protective ring 7. A threaded ring is provided at the bottom of each limiting ring 8, and the threaded rings are threadedly connected to the inner wall of the protective ring 7. A partition 9 is fixedly provided on the inner wall of the housing 1, located at the lower end of the transmission component 4. Multiple oil leakage holes 10 are provided on the partition 9 and are evenly distributed. An internal hexagonal groove 25 is provided on the upper surface of each connecting screw 6, and the internal hexagonal groove 25 is located inside the limiting ring 8.

[0032] In this embodiment, an oil injection pipe 11 is fixedly provided on the upper end face of the partition 9 and located in the middle position. An oil injection head 12 is provided on the outer wall of the oil injection pipe 11 and located at the upper end. Multiple oil injection heads 12 are provided and are evenly distributed. All oil injection heads 12 are located at the lower end of the transmission assembly 4. A pump body 13 is fixedly provided on the inner wall of the housing 1 and located at the bottom. A connecting pipe 14 is provided at the output end of the pump body 13. The other end of the connecting pipe 14 is connected to the interior of the oil injection pipe 11.

[0033] More specifically, the user can screw the connecting screw 6 into the threaded hole 5 on the housing 1 to fix the end cover 2 and the housing 1, facilitating assembly. The user can also screw the limiting ring 8 onto the upper end of the protective ring 7 to limit the connecting screw 6 and prevent it from being lost. When the transmission component 4 needs to be lubricated, the user can control the pump body 13 to guide the lubricating oil inside the housing 1 into the oil spray pipe 11 and spray it out through the oil spray head 12, so that the lubricating oil sticks to the outer end of the transmission component 4, thereby achieving the lubrication effect. Excess lubricating oil will re-enter the bottom of the housing 1 through the oil leakage hole 10 for continued use.

[0034] Please see Figure 1 , Figure 2 and Figure 5 As an embodiment for further fixing the end cap 2 and the housing 1: a first threaded ring 15 is fixedly provided on the outer end of the mounting groove 3 and on the outer wall of the housing 1, and a second threaded ring 16 is correspondingly provided on the outer wall of the end cap 2. A locking plate 17 is slidably provided on the outer ends of the first threaded ring 15 and the second threaded ring 16. A locking nut 18 is provided on the outer wall of the first threaded ring 15 and the second threaded ring 16. The locking nut 18 abuts against the outer wall of the locking plate 17. A positioning post 19 is fixedly provided on the inner wall of the locking plate 17 and at the four corners. A positioning hole 20 is correspondingly opened on the outer wall of the housing 1 and the end cap 2. The positioning post 19 is located inside the positioning hole 20.

[0035] Specifically, after the end cap 2 and the housing 1 are assembled together, the locking plate 17 can be slidably installed onto the outer ends of the first threaded ring 15 and the second threaded ring 16 so that the positioning pin 19 enters the positioning hole 20. Then, the locking nut 18 is tightened to make it abut against the outer wall of the locking plate 17, so as to further increase the stability of the connection between the end cap 2 and the housing 1 and facilitate use.

[0036] Please refer to Figure 2 and Figure 5 As a further embodiment of adding lubricating oil to the housing 1: a filling pipe 21 is fixedly provided on one side of the housing 1, a sealing plug 22 is provided inside the filling pipe 21, and an oil drain pipe 23 is fixedly provided on the outer wall of the housing 1 at the bottom, and an oil drain valve 24 is provided on the oil drain pipe 23.

[0037] Specifically, users can add lubricating oil into the housing 1 through the oil filling pipe 21, and can also open the oil drain valve 24 to drain the lubricating oil for easy replacement.

[0038] In summary, when using the overall equipment: the user can screw the connecting screw 6 into the threaded hole 5 on the housing 1 to fix the end cover 2 and the housing 1. Then, the locking plate 17 is slidably installed onto the outer end of the first threaded ring 15 and the second threaded ring 16 so that the positioning pin 19 enters the positioning hole 20. Finally, the locking nut 18 is tightened to make it abut against the outer wall of the locking plate 17 to further increase the stability of the connection between the end cover 2 and the housing 1 and facilitate use. In addition, the user can screw the limiting ring 8 onto the upper end of the protective ring 7 to limit the connecting screw 6 and prevent it from loosening and being lost. When the transmission component 4 needs to be lubricated, the user can control the pump body 13 to guide the lubricating oil inside the housing 1 into the oil spray pipe 11 and spray it out through the oil spray head 12 so that the lubricating oil sticks to the outer end of the transmission component 4, thereby achieving the lubrication effect. Excess lubricating oil will re-enter the bottom of the housing 1 through the oil leakage hole 10 for continued use.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reduction gearbox for ease of assembly comprising a housing (1) characterised in that: The upper end face of the housing (1) is provided with an end cap (2). The end cap (2) and the outer wall of the housing (1) are respectively provided with mounting grooves (3). The inside of the mounting groove (3) is provided with a transmission component (4). The connection position between the end cap (2) and the housing (1) is provided with threaded holes (5). Multiple threaded holes (5) are provided and each of them is provided with a connecting screw (6). The outer end of the connecting screw (6) and the upper end face of the end cap (2) are fixedly provided with a protective ring (7). The upper end of the protective ring (7) is provided with a limiting ring (8). The bottom of the limiting ring (8) is provided with a threaded ring. The threaded ring is threadedly connected to the inner wall of the protective ring (7). The inner wall of the housing (1) and the lower end of the transmission component (4) are fixedly provided with a partition plate (9). The partition plate (9) is provided with an oil leakage hole (10). Multiple oil leakage holes (10) are provided and are evenly distributed.

2. A reduction gearbox for ease of assembly according to claim 1 characterised in that: An oil injection pipe (11) is fixedly provided on the upper end face of the partition (9) and located in the middle position. An oil injection head (12) is provided on the outer wall of the oil injection pipe (11) and located at the upper end. Multiple oil injection heads (12) are provided and are evenly distributed. All oil injection heads (12) are located at the lower end of the transmission assembly (4).

3. A reduction gearbox for ease of assembly according to claim 2 characterised in that: A pump body (13) is fixedly provided on the inner wall of the housing (1) and at the bottom. The output end of the pump body (13) is provided with a connecting pipe (14), and the other end of the connecting pipe (14) is connected to the inside of the fuel injection pipe (11).

4. A reduction gearbox for ease of assembly according to claim 1 characterised in that: The outer end of the mounting groove (3) and the outer wall of the housing (1) are fixedly provided with a first threaded ring (15), and the outer wall of the end cap (2) is provided with a corresponding second threaded ring (16). The outer ends of the first threaded ring (15) and the second threaded ring (16) are both provided with a locking plate (17). The outer walls of the first threaded ring (15) and the second threaded ring (16) are both provided with a locking nut (18), and the locking nut (18) abuts against the outer wall of the locking plate (17).

5. A reduction gearbox of the type defined in claim 4, characterised in that: Positioning pins (19) are fixedly provided on the inner wall of the locking plate (17) and at the four corners. Positioning holes (20) are provided on the outer walls of the housing (1) and the end cap (2). The positioning pins (19) are all located inside the positioning holes (20).

6. A reduction gearbox for ease of assembly according to claim 1 characterised in that: A refueling pipe (21) is fixedly provided on one side of the housing (1), and a sealing plug (22) is provided inside the refueling pipe (21).

7. A reduction gearbox for ease of assembly according to claim 1 characterised in that: An oil drain pipe (23) is fixedly provided on the outer wall of the housing (1) and at the bottom, and an oil drain valve (24) is provided on the oil drain pipe (23).

8. A reduction gearbox for ease of assembly according to claim 1 characterised in that: The upper end face of each connecting screw (6) is provided with an internal hexagonal groove (25), which is located inside the limiting ring (8).

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