Anti-loosening duplicate gear with limiting structure

Abstract

The utility model relates to the technical field of duplicate gears, and discloses an anti-loosening duplicate gear with a limiting structure, which comprises a main shaft and a first gear, the main shaft and the first gear are of an integral structure, a first inclined plane column is slidably connected in the main shaft, one end of the first inclined plane column is fixedly connected with a second shaft body, and the other end of the first inclined plane column is fixedly connected with a second shaft body. A second bevel column is slidably connected to the outer wall of the second shaft body, a first limiting ring is fixedly connected to the outer wall of the second shaft body, a second limiting ring is fixedly connected to one end of the second shaft body, a second gear is fixedly connected to the outer wall of the second limiting ring, and a limiting plate is fixedly connected to the outer wall of the second limiting ring. According to the transmission device, the second shaft body slides into the main shaft, so that the limiting block is pushed to move, the limiting block moves to drive the sliding column to slide, so that the spring is driven to be compressed, and through springback of the spring, the limiting block is located behind the first inclined plane column, and the effect that the second gear is convenient to replace according to different required tooth numbers is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of double gears, in particular to a double gear with an anti-loosening limiting structure. Background Art

[0002] A duplex gear consists of two gears of different diameters, typically mounted on the same shaft. By meshing with other gears, different gear ratios can be achieved. Its primary function in mechanical transmissions is to vary speed and torque to meet varying operating requirements. In automotive transmissions, duplex gears enable shifting between gears, allowing the vehicle to travel at varying speeds.

[0003] However, the traditional duplex gear is to connect one gear to the shaft and then install another gear. Due to long-term use, the parts that fasten the gears may become loose. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a double gear with an anti-loosening limit structure, which aims to improve the problem that the components fastening the gears may become loose due to long-term use.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a double gear with an anti-loosening limit structure, comprising a main shaft and a first gear, wherein the main shaft and the first gear are an integral structure, the main shaft is slidably connected to a first bevel column inside, one end of the first bevel column is fixedly connected to the second shaft body, the outer wall of the second shaft body is slidably connected to the second bevel column, the outer wall of the second shaft body is fixedly connected to the first limit ring, one end of the second shaft body is fixedly connected to the second limit ring, the outer wall of the second limit ring is fixedly connected to the second gear, the outer wall of the second limit ring is fixedly connected to the limit plate, a sliding groove is provided inside the main shaft, the outer wall of the limit plate is slidably connected to the inner wall of the sliding groove, and a blocking component is provided inside the main shaft, which serves to block the first bevel column.

[0006] Preferably, the blocking assembly includes a hollow column, one end of the hollow column is fixedly connected to the inside of the main shaft, the outer wall of the hollow column is slidably connected to a spring, one end of the spring is fixedly connected to a sliding column, the outer wall of the sliding column is slidably connected to the inner wall of the hollow column, the outer wall of the sliding column is fixedly connected to a limiting block, the outer wall of the limiting block is slidably connected to the outer wall of the first inclined column, and the outer wall of the limiting block is slidably connected to the outer wall of the second inclined column.

[0007] Preferably, the main shaft is internally rotatably connected to a first rotating column, and one end of the first rotating column is fixedly connected to a screw rod.

[0008] Preferably, the internal thread of the screw rod is connected to a sliding block, the outer wall of the sliding block is fixedly connected to an L-shaped plate, and the outer wall of the L-shaped plate is fittedly connected to a pushing bracket.

[0009] Preferably, the inner portion of the pushing bracket is rotatably connected to the outer wall of the sliding block, and the outer wall of the pushing bracket is affixed to the outer wall of the first inclined column.

[0010] Preferably, one end of the screw rod is fixedly connected to a second rotating column.

[0011] Preferably, the outer wall of the second rotating column is rotatably connected to the inside of the main shaft.

[0012] Preferably, a hexagram groove is formed on the outer wall of the first rotating column.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the second shaft body is slid into the inside of the main shaft, thereby pushing the limit block to move. The movement of the limit block drives the sliding column to slide, thereby driving the spring to compress. When the first inclined plane column moves to a certain position, the limit block is behind the first inclined plane column through the rebound of the spring, and the second shaft body is slid inward again, so that the limit block is at the rear of the second inclined plane column. At this time, the second shaft body is pulled outward until the second inclined plane column is fitted with the first inclined plane column, which will cause the first inclined plane column to separate from the limit block, thereby achieving the effect of facilitating the replacement of the second gear according to the number of teeth required.

[0015] 2. In the present invention, twisting the first rotating column drives the screw to rotate, and the rotation of the screw drives the sliding block to move, thereby driving the L-shaped plate and the pushing bracket to move, so that the pushing bracket is located in the center of the first bevel column. When the sliding block moves downward, the pushing bracket will gradually push the first bevel column to move, so that the outer wall of the first gear is stuck on the outer wall of the limit block, fixing the first bevel column, thereby limiting the second shaft and the second gear, achieving the effect of preventing the second gear from loosening and limiting it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a double gear with an anti-loosening and limiting structure proposed by the present invention;

[0017] Figure 2 This is a cross-sectional view of the shaft of a double gear with an anti-loosening and limiting structure proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of a screw rod of a double gear with an anti-loosening and limiting structure proposed by the utility model;

[0019] Figure 4This is a schematic diagram of the first bevel column of a double gear with an anti-loosening and limiting structure proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of a spring for a double gear with an anti-loosening and limiting structure proposed by the utility model.

[0021] Legend:

[0022] 1. Main shaft; 2. First gear; 3. First bevel column; 4. Second bevel column; 5. First limiting ring; 6. Second limiting ring; 7. Second gear; 8. Limiting plate; 9. Sliding groove; 10. Hollow column; 11. Spring; 12. Sliding column; 13. Limiting block; 14. First rotating column; 15. Screw; 16. Sliding block; 17. L-shaped plate; 18. Pushing bracket; 19. Second rotating column; 20. Second shaft. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1 、 Figure 4 and Figure 5 , the utility model provides an embodiment: a double gear with an anti-loosening limiting structure, including a main shaft 1 and a first gear 2, the main shaft 1 and the first gear 2 are an integral structure, the main shaft 1 is internally slidably connected with a first bevel column 3, one end of the first bevel column 3 is fixedly connected to a second shaft body 20, the outer wall of the second shaft body 20 is slidably connected to a second bevel column 4, the outer wall of the second shaft body 20 is fixedly connected to a first limiting ring 5, one end of the second shaft body 20 is fixedly connected to a second limiting ring 6, the outer wall of the second limiting ring 6 is fixedly connected to a second gear 7, the outer wall of the second limiting ring 6 is fixedly connected to a limiting plate 8, and a sliding groove is opened inside the main shaft 1 9, the outer wall of the limit plate 8 is slidably connected to the inner wall of the sliding groove 9, and a blocking assembly is provided inside the main shaft 1, which serves to block the first bevel column 3; the blocking assembly includes a hollow column 10, one end of the hollow column 10 is fixedly connected to the inside of the main shaft 1, the outer wall of the hollow column 10 is slidably connected to a spring 11, one end of the spring 11 is fixedly connected to a sliding column 12, the outer wall of the sliding column 12 is slidably connected to the inner wall of the hollow column 10, the outer wall of the sliding column 12 is fixedly connected to a limiting block 13, the outer wall of the limiting block 13 is slidably connected to the outer wall of the first bevel column 3, and the outer wall of the limiting block 13 is slidably connected to the outer wall of the second bevel column 4;

[0025] When the second bevel column 3 moves to a certain position, the limit block 13 is moved behind the first bevel column 3 by the rebound of the spring 11. When the second shaft body 20 moves, it will also drive the second limit circle 6 and the second gear 7 to move, thereby driving the limit plate 8 to move, thereby driving the second gear 7 to rotate. When the second gear 7 needs to be replaced, the second shaft body 20 is slid inward again so that the limit block 13 is at the rear of the second bevel column 4. At this time, the second shaft body 20 is pulled outward to drive the second bevel column 4 to move until the second bevel column 4 is fitted with the first bevel column 3. At this time, due to the inclined surface provided on the outer wall of the second bevel column 4, the first bevel column 3 will be separated from the limit block 13, so that the second gear 7 can be replaced according to the different number of teeth required.

[0026] Reference Figure 2 and Figure 3 The main shaft 1 is internally rotatably connected to a first rotating column 14, and one end of the first rotating column 14 is fixedly connected to a screw rod 15;

[0027] Specifically, twisting the first rotating column 14 to rotate can drive the screw rod 15 to rotate.

[0028] Reference Figure 2 and Figure 3 The inner thread of the screw rod 15 is connected to the sliding block 16, the outer wall of the sliding block 16 is fixedly connected to the L-shaped plate 17, and the outer wall of the L-shaped plate 17 is fitted with a push bracket 18;

[0029] Specifically, the rotation of the screw rod 15 drives the sliding block 16 to move. Since a nut is provided inside the sliding block 16, the nut is rotatably connected to the sliding block 16, ensuring that the sliding block 16 can move while the screw rod 15 rotates and will not rotate on its own. The movement of the sliding block 16 drives the L-shaped plate 17 and the push bracket 18 to move.

[0030] Reference Figure 2 and Figure 3 , pushing the inner rotation of the bracket 18 to connect to the outer wall of the sliding block 16, pushing the outer wall of the bracket 18 to fit the outer wall of the first inclined column 3;

[0031] Specifically, when the sliding block 16 moves downward, the pushing bracket 18 will gradually push the first bevel column 3 to move, so that the outer wall of the first gear 2 is stuck on the outer wall of the limit block 13, thereby fixing the first bevel column 3.

[0032] Reference Figure 2 and Figure 3One end of the screw rod 15 is fixedly connected to the second rotating column 19; the outer wall of the second rotating column 19 is rotatably connected to the inside of the main shaft 1;

[0033] Specifically, the second rotating column 19 is provided with two layers of large and small sizes to ensure that the first rotating column 14 and the screw rod 15 will not be separated from the main shaft 1.

[0034] Reference Figure 1 、 Figure 2 and Figure 3 , a plum blossom groove is provided on the outer wall of the first rotating column 14;

[0035] Specifically, it is convenient to use a plum blossom screwdriver to rotate it.

[0036] Working principle: When the gear needs to be used, first slide the second bevel column 4 so that the outer wall of the second bevel column 4 fits into the outer wall of the first limit ring 5, and then slide the second shaft body 20 into the inside of the main shaft 1. When sliding in, due to the inclined surface provided on the outer wall of the first bevel column 3, the limit block 13 will be pushed to move. The movement of the limit block 13 drives the sliding column 12 to slide inside the hollow column 10, thereby driving the spring 11 to compress. When the first bevel column 3 moves to a certain position, the spring 11 rebounds, so that the limit block 13 is behind the first bevel column 3. At this time, the first bevel column 3 cannot move backward. When the second shaft body 20 moves, it will also drive the second limit ring 6 to move, thereby driving the second gear 7 to move. When the second limiting ring 6 moves, it will also drive the limiting plate 8 to move inside the sliding groove 9. The outer wall of the limiting plate 8 is provided with a groove, which ensures that the first gear 2 rotates and the limiting plate 8 can also be driven to rotate. At the same time, it also ensures that the second gear 7 is installed in a certain position, thereby driving the second gear 7 to rotate. When the second gear 7 needs to be replaced, the second shaft body 20 is slid inward again, so that the limiting block 13 is at the rear of the second bevel column 4. At this time, the second shaft body 20 is pulled outward to drive the second bevel column 4 to move until the second bevel column 4 is fitted with the first bevel column 3. At this time, due to the inclined surface provided on the outer wall of the second bevel column 4, the first bevel column 3 will be separated from the limiting block 13, and the first limiting ring 5 will be on the second bevel column 4. The limiting function is to prevent the second bevel column 4 from being too far away, so as to facilitate the replacement of the second gear 7 according to the different number of teeth required. When the first bevel column 3 slides into a certain position, a plum screwdriver is used to twist the first rotating column 14. The first rotating column 14 drives the screw rod 15 to rotate, and the rotation of the screw rod 15 drives the sliding block 16 to move. Since a nut is provided inside the sliding block 16, the nut is rotatably connected to the sliding block 16 to ensure that the sliding block 16 can move while the screw rod 15 rotates and does not rotate on its own. The movement of the sliding block 16 drives the L-shaped plate 17 and the pushing bracket 18 to move. The L-shaped plate 17 ensures that the pushing bracket 18 will not rotate too much without support, so that the pushing bracket 18 contacts the first bevel column 3. When the first gear 2 is in the forward direction, the second gear 2 is moved in a forward direction, and the second gear 2 is moved in a reverse direction, so that the first gear 2 is moved in a reverse direction, and the second gear 2 is moved in a reverse direction, so that the second ...

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double gear with an anti-loosening and limiting structure, comprising a main shaft (1) and a first gear (2), characterized in that: The main shaft (1) and the first gear (2) are an integral structure. The main shaft (1) is internally slidably connected to a first bevel column (3). One end of the first bevel column (3) is fixedly connected to a second shaft body (20). The outer wall of the second shaft body (20) is slidably connected to a second bevel column (4). The outer wall of the second shaft body (20) is fixedly connected to a first limiting ring (5). One end of the second shaft body (20) is fixedly connected to a second limiting ring (6). The outer wall of the second limiting ring (6) is fixedly connected to a second gear (7). The outer wall of the second limiting ring (6) is fixedly connected to a limiting plate (8). A sliding groove (9) is provided inside the main shaft (1). The outer wall of the limiting plate (8) is slidably connected to the inner wall of the sliding groove (9). A blocking component is provided inside the main shaft (1). The blocking component serves to block the first bevel column (3).

2. The double gear with anti-loosening and limiting structure according to claim 1, characterized in that: The blocking assembly comprises a hollow column (10), one end of the hollow column (10) is fixedly connected to the inside of the main shaft (1), the outer wall of the hollow column (10) is slidably connected to a spring (11), one end of the spring (11) is fixedly connected to a sliding column (12), the outer wall of the sliding column (12) is slidably connected to the inner wall of the hollow column (10), the outer wall of the sliding column (12) is fixedly connected to a limiting block (13), the outer wall of the limiting block (13) is slidably connected to the outer wall of the first inclined column (3), and the outer wall of the limiting block (13) is slidably connected to the outer wall of the second inclined column (4).

3. The double gear with anti-loosening and limiting structure according to claim 2, characterized in that: The main shaft (1) is internally rotatably connected to a first rotating column (14), and one end of the first rotating column (14) is fixedly connected to a screw rod (15).

4. The double gear with anti-loosening and limiting structure according to claim 3, characterized in that: The internal thread of the screw rod (15) is connected to a sliding block (16), the outer wall of the sliding block (16) is fixedly connected to an L-shaped plate (17), and the outer wall of the L-shaped plate (17) is fitted and connected to a pushing bracket (18).

5. The double gear with anti-loosening and limiting structure according to claim 4, characterized in that: The inner portion of the pushing bracket (18) is rotatably connected to the outer wall of the sliding block (16), and the outer wall of the pushing bracket (18) is attached to the outer wall of the first inclined column (3).

6. The double gear with anti-loosening and limiting structure according to claim 5, characterized in that: One end of the screw rod (15) is fixedly connected to a second rotating column (19).

7. The double gear with anti-loosening and limiting structure according to claim 6, characterized in that: The outer wall of the second rotating column (19) is rotatably connected to the interior of the main shaft (1).

8. The double gear with anti-loosening and limiting structure according to claim 3, characterized in that: The outer wall of the first rotating column (14) is provided with a plum blossom groove.

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