Replaceable gearbox

Abstract

The utility model discloses a replaceable speed-changing gear box, which belongs to the technical field of speed-changing gear boxes and comprises an upper cover body, a lower cover body, an input shaft and an output shaft, two first bearings are coaxially fixed on the outer side of the input shaft, a first transmission wheel is further coaxially fixed on the outer side of the input shaft, and a second transmission wheel is further coaxially fixed on the outer side of the output shaft. Two second bearings are coaxially fixed to the outer side of the output shaft, and a second transmission wheel is further coaxially fixed to the outer side of the output shaft. When the second transmission wheel is locally damaged due to overload, the arc-shaped toothed plate at the damaged part is replaced according to the damaged part, the second transmission wheel does not need to be integrally replaced, the problem that the cost is high when a gear is integrally replaced in the prior art is solved, and meanwhile, in the process of replacing the damaged arc-shaped toothed plate, the damage to the damaged arc-shaped toothed plate is avoided. And the problems that the bearing and the rotating shaft need to be disassembled when the gear is replaced, and time and labor are wasted are solved.

Description

Technical Field

[0001] This utility model belongs to the field of gear transmission technology, and more specifically, it relates to a replaceable gear transmission. Background Technology

[0002] Gearboxes are core components of mechanical transmission systems. Their main functions include changing speed and torque, realizing reversing transmission, and interrupting power transmission. They are widely used in automobiles, construction machinery, ships and other fields. Existing gearboxes are prone to partial tooth breakage under overload. The current approach is to replace the entire gear, which is not only costly but also requires disassembling bearings and shafts, which is time-consuming and labor-intensive. Therefore, a replaceable gearbox is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a replaceable gearbox. When the second transmission wheel suffers partial damage due to overload, the arc-shaped tooth plate at the damaged location is replaced, eliminating the need to replace the entire second transmission wheel. This solves the problem mentioned in the background art where partial tooth breakage easily occurs under overload, and the existing approach involves replacing the entire gear, which is not only costly but also time-consuming and labor-intensive due to the need to disassemble bearings and shafts.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a replaceable gearbox, comprising an upper cover, a lower cover, an input shaft, and an output shaft, wherein two first bearings are coaxially fixed to the outer side of the input shaft, and a first transmission wheel is also coaxially fixed to the outer side of the input shaft; two second bearings are coaxially fixed to the outer side of the output shaft, and a second transmission wheel is also coaxially fixed to the outer side of the output shaft.

[0005] The second transmission wheel includes a turntable coaxially fixedly connected to the outside of the output shaft. An annular groove is formed on the outer circumference of the turntable. Two limiting grooves are formed on both sides of the annular groove. Two arc-shaped connecting plates are formed on the inner side of the annular groove. The centers of the two arc-shaped connecting plates coincide with the center of the turntable. Limiting blocks are formed on both sides of the two arc-shaped connecting plates. The outer side of the limiting blocks is engaged with the inner side of the limiting groove. Arc-shaped toothed plates are fixed on the outer circumference of the two arc-shaped connecting plates. Limiting holes are formed on one side of the two arc-shaped connecting plates. Multiple threaded holes are formed on one side of the turntable. Multiple connecting holes are formed on the other side of the turntable. Bolts are inserted into the inner side of the connecting holes.

[0006] As a preferred embodiment of this utility model, the two first bearings are respectively located on both sides of the first transmission wheel.

[0007] As a preferred embodiment of this utility model, the outer circumference of the second transmission wheel meshes with the outer circumference of the first transmission wheel, and the two second bearings are respectively located on both sides of the second transmission wheel.

[0008] As a preferred embodiment of this invention, both limiting grooves are perpendicular to the axis of the turntable.

[0009] As a preferred embodiment of this utility model, the position of the connecting hole corresponds to the position of the threaded hole.

[0010] As a preferred embodiment of this invention, the position of the limiting hole corresponds to the position of the connecting hole.

[0011] As a preferred embodiment of this utility model, one end of the bolt passes through the interior of the connecting hole and the limiting hole and is threadedly connected to the inner side of the threaded hole.

[0012] This utility model provides a replaceable gearbox, which has the following advantages:

[0013] This replaceable gearbox, when the second drive pulley is partially damaged due to overload, replaces the arc-shaped gear plate at the damaged location without replacing the entire second drive pulley. This solves the problem of high cost associated with replacing the entire gear in existing methods. At the same time, the replacement of the damaged arc-shaped gear plate does not require disassembling the bearings and shafts, thus solving the problem of time-consuming and labor-intensive disassembly of bearings and shafts when replacing gears.

[0014] 2. The replaceable gearbox aligns the limiting block on the arc-shaped connecting plate with the limiting groove on the annular groove and inserts it to position the arc-shaped connecting plate, making the limiting hole on the arc-shaped connecting plate aligned with the connecting hole on the turntable, thus facilitating bolt installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a replaceable gearbox according to the present invention.

[0016] Figure 2 This is a schematic diagram showing the disassembled structure of a replaceable gearbox according to the present invention.

[0017] Figure 3 This utility model relates to a replaceable gearbox. Figure 2 Enlarged diagram of point A in the diagram.

[0018] Figure 4 This is a schematic diagram of the second transmission wheel structure of a replaceable gearbox according to the present invention.

[0019] In the diagram: 1. Upper cover; 2. Lower cover; 3. Input shaft; 4. Output shaft; 5. First bearing; 6. First transmission wheel; 7. Second bearing; 8. Second transmission wheel; 81. Turntable; 82. Annular groove; 83. Limiting groove; 84. Arc-shaped connecting plate; 85. Limiting block; 86. Arc-shaped toothed plate; 87. Limiting hole; 88. Threaded hole; 89. Connecting hole; 810. Bolt. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1 to 4This utility model provides a technical solution: a replaceable gearbox, including an upper cover 1, a lower cover 2, an input shaft 3, and an output shaft 4. Two first bearings 5 ​​are coaxially fixed to the outer side of the input shaft 3, and a first transmission wheel 6 is also coaxially fixed to the outer side of the input shaft 3. Two second bearings 7 are coaxially fixed to the outer side of the output shaft 4, and a second transmission wheel 8 is also coaxially fixed to the outer side of the output shaft 4. The second transmission wheel 8 includes a turntable 81 coaxially fixed to the outer side of the output shaft 4. An annular groove 82 is formed on the outer circumference of the turntable 81. Two limiting grooves 83 are formed on both sides of the annular groove 82. Two arc-shaped connecting plates 84 are provided on the inner side of the annular groove 82, with the centers of the two arc-shaped connecting plates 84 coinciding with the center of the turntable 81. Limiting blocks 85 are provided on both sides of the two arc-shaped connecting plates 84, with the outer sides of the limiting blocks 85 coinciding with the inner sides of the limiting grooves 83. The two arc-shaped connecting plates 84 are fixed with arc-shaped toothed plates 86 on their outer circumferences. Each of the two arc-shaped connecting plates 84 has a limiting hole 87 on one side. The turntable 81 has multiple threaded holes 88 on one side and multiple connecting holes 89 on the other side. Bolts 810 are inserted into the inner side of the connecting holes 89. Two first bearings 5 ​​are located on both sides of the first transmission wheel 6. The outer circumference of the second transmission wheel 8 meshes with the outer side of the first transmission wheel 6. Two second bearings 7 are located on both sides of the second transmission wheel 8. Two limiting grooves 83 are perpendicular to the axis of the turntable 81. The position of the connecting hole 89 corresponds to the position of the threaded hole 88. The position of the limiting hole 87 corresponds to the position of the connecting hole 89. One end of the bolt 810 passes through the interior of the connecting hole 89 and the limiting hole 87 and is threaded into the inner side of the threaded hole 88.

[0024] When the second transmission wheel 8 suffers partial damage due to overload, the arc-shaped toothed plate 86 at the damaged location is replaced. First, the bolt 810 connected to it is removed to take off the damaged arc-shaped toothed plate 86. Then, a new arc-shaped toothed plate 86 is installed. The limiting block 85 on the arc-shaped connecting plate 84 is aligned with the limiting groove 83 on the annular groove 82 and inserted to position the arc-shaped connecting plate 84. This ensures that the limiting hole 87 on the arc-shaped connecting plate 84 is aligned with the connecting hole 89 on the turntable 81, facilitating the installation of the bolt 810. Finally, the bolt 810 passes through... The connecting hole 89 is connected to the inside of the limiting hole 87 and threaded to the inside of the threaded hole 88, thereby completing the installation of the damaged arc-shaped toothed plate 86. Through the above process, when the second transmission wheel 8 is partially damaged due to overload, the arc-shaped toothed plate 86 of the damaged part can be replaced according to the damaged part, without replacing the entire second transmission wheel 8. This solves the problem of high cost caused by replacing the entire gear in the existing practice. At the same time, during the replacement of the damaged arc-shaped toothed plate 86, there is no need to disassemble the bearing and shaft, which solves the problem of time-consuming and labor-intensive disassembly of bearings and shafts when replacing gears.

[0025] The specific usage and function of this embodiment: When the second transmission wheel 8 suffers partial damage due to overload, the arc-shaped toothed plate 86 of this utility model is replaced according to the damaged part. First, the bolt 810 connected to it is removed to remove the damaged arc-shaped toothed plate 86. Then, a new arc-shaped toothed plate 86 is installed. The limiting block 85 on the arc-shaped connecting plate 84 is aligned with the limiting groove 83 on the annular groove 82 and inserted to position the arc-shaped connecting plate 84, so that the limiting hole 87 on the arc-shaped connecting plate 84 is aligned with the rotating part. The connecting holes 89 on the disc 81 are aligned to facilitate the installation of the bolts 810. Finally, the bolts 810 pass through the connecting holes 89 and the interior of the limiting holes 87 and are threaded into the inner side of the threaded holes 88, thereby completing the installation of the damaged arc-shaped toothed plate 86. Through the above process, when the second transmission wheel 8 is partially damaged due to overload, the arc-shaped toothed plate 86 of the damaged part is replaced according to the damaged part, without the need to replace the entire second transmission wheel 8. At the same time, during the replacement of the damaged arc-shaped toothed plate 86, there is no need to disassemble the bearings and shafts.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A replaceable gearbox, comprising an upper cover (1), a lower cover (2), an input shaft (3), and an output shaft (4), characterized in that: Two first bearings (5) are coaxially fixed on the outer side of the input shaft (3), and a first transmission wheel (6) is also coaxially fixed on the outer side of the input shaft (3). Two second bearings (7) are coaxially fixed on the outer side of the output shaft (4), and a second transmission wheel (8) is also coaxially fixed on the outer side of the output shaft (4). The second transmission wheel (8) includes a turntable (81) coaxially fixedly connected to the outside of the output shaft (4). An annular groove (82) is provided on the outer circumference of the turntable (81). Two limiting grooves (83) are provided on both sides of the annular groove (82). Two arc-shaped connecting plates (84) are provided on the inner side of the annular groove (82). The center of the two arc-shaped connecting plates (84) coincides with the center of the turntable (81). Limiting blocks are provided on both sides of the two arc-shaped connecting plates (84). 85), the outer side of the limiting block (85) is engaged with the inner side of the limiting groove (83), and the outer circumference of the two arc-shaped connecting plates (84) is fixed with arc-shaped toothed plates (86). The two arc-shaped connecting plates (84) are provided with limiting holes (87) on one side. The turntable (81) is provided with multiple threaded holes (88) on one side. The turntable (81) is provided with multiple connecting holes (89) on the other side. The connecting holes (89) are connected with bolts (810).

2. The replaceable gearbox according to claim 1, characterized in that: The two first bearings (5) are located on both sides of the first transmission wheel (6).

3. The replaceable gearbox according to claim 1, characterized in that: The outer circumference of the second transmission wheel (8) meshes with the outer circumference of the first transmission wheel (6), and the two second bearings (7) are located on both sides of the second transmission wheel (8).

4. A replaceable gearbox according to claim 1, characterized in that: Both of the limiting grooves (83) are perpendicular to the axis of the turntable (81).

5. A replaceable gearbox according to claim 1, characterized in that: The position of the connecting hole (89) corresponds to the position of the threaded hole (88).

6. A replaceable gearbox according to claim 1, characterized in that: The position of the limiting hole (87) corresponds to the position of the connecting hole (89).

7. A replaceable gearbox according to claim 1, characterized in that: One end of the bolt (810) passes through the interior of the connecting hole (89) and the limiting hole (87) and is threaded into the inner side of the threaded hole (88).

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