Novel fixed gear

Abstract

The utility model provides a novel fixed gear, and belongs to the technical field of mechanical transmission. The gear solves the problems that a traditional gear is prone to deflection or axial movement in the transmission process, and the transmission precision and stability are affected. The novel fixed gear comprises a gear body and a shaft hole formed in the center of the gear body, a shaft tube is mounted on the shaft hole, outer teeth are arranged on the surface of the gear body, a plurality of inner teeth are arranged on the inner surface of the shaft hole, mounting cavities are formed among the inner teeth, and meshing teeth matched with the mounting cavities are arranged on the shaft tube. The inner teeth are provided with mounting grooves, the mounting grooves are in a cross shape, fixing assemblies used for fixing the meshing teeth are arranged in the mounting grooves, and the fixing assemblies are fixed in the mounting grooves in a cross shape. The utility model has the advantage that the stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical drive technical field, and particularly relates to a novel fixed gear. BACKGROUND

[0002] Gear is the wheel-like mechanical part of torque transmission by the meshing of teeth, and gear can realize the functions of changing rotation speed and torque, changing movement direction and changing movement form by transmission with other toothed mechanical parts (such as another gear, rack and worm), and gear mechanism is widely used in industrial products, and the design and manufacturing level of gear mechanism directly affects the quality of industrial products, gear teeth are mutually buckled, and gear can drive another gear to rotate to transmit power, two gears can be separated, and chain, track and belt can also be used to drive gears on both sides to transmit power.

[0003] The installation of traditional fixed gear usually needs additional fasteners or complex assembly process, which increases installation time and cost, and due to manufacturing and assembly errors, the traditional gear is prone to deflection or axial movement during transmission, which affects transmission accuracy and stability. SUMMARY

[0004] The utility model discloses a novel fixed gear that is easy to install and solves the problems in the prior art.

[0005] The utility model discloses a novel fixed gear, including the gear body and the axle hole that sets up in the gear body center, the axle hole is installed with the axle pipe, its characterized in that, the gear body surface is provided with the external tooth, the axle hole inner surface is provided with a plurality of internal tooth, and the installation cavity is formed between the internal tooth, the axle pipe is provided with the mesh tooth that cooperates with the installation cavity, the internal tooth is provided with the installation slot, the installation slot is cross -shaped, be provided with the fixed assembly for fixing mesh tooth in the installation slot, the fixed assembly is cross -shaped fixed in the installation slot, the fixed assembly includes two symmetrical mobile column, and the mobile column is connected through the fixed block between the mobile column, the fixed block one end is provided with the elastic support of reset spring, the fixed block other end is provided with the clamping column.

[0006] In the above-mentioned novel fixed gear, the through hole for clamping column movement is set up on the surface of the internal tooth, the limiting block for preventing the deflection of the elastic support is set up on the installation slot, and the clamping groove for clamping column installation is set up on the mesh tooth.

[0007] Compared with the prior art, this new type of fixed gear achieves a compact connection between the shaft tube and the gear body by setting mounting grooves and fixing components on the internal teeth, reducing the overall size. The fixing components adopt a cross-shaped design, which facilitates alignment and engagement with the teeth on the shaft tube, improving installation efficiency. The engagement method between the locking post and the teeth ensures a reliable fixed connection between the shaft tube and the gear body, making it less prone to loosening. Attached Figure Description

[0008] Figure 1 This is a cross-sectional view of the novel fixed gear.

[0009] Figure 2 This is a schematic diagram of the fixing component of the new type of fixed gear.

[0010] In the diagram, 1. Gear body; 2. Shaft hole; 3. External tooth; 4. Internal tooth; 5. Mounting cavity; 6. Gear; 7. Mounting groove; 8. Fixing component; 9. Moving column; 10. Fixing block; 11. Elastic bracket; 12. Snap-fit ​​column; 13. Through hole; 14. Limiting block; 15. Snap groove; 16. Shaft tube. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 , Figure 2 As shown, this novel fixed gear includes a gear body 1 and a shaft hole 2 at the center of the gear body 1. A shaft tube 16 is installed on the shaft hole 2. External teeth 3 are provided on the surface of the gear body 1, and a plurality of internal teeth 4 are provided on the inner surface of the shaft hole 2, with mounting cavities 5 formed between the internal teeth 4. The shaft tube 16 is provided with meshing teeth 6 that mate with the mounting cavities 5. When the shaft tube 16 is inserted into the shaft hole 2 of the gear body 1, the meshing teeth 6 on the shaft tube 16 mesh with the internal teeth 4 of the gear body 1. Mounting grooves 7 are provided on the internal teeth 4. The mounting groove 7 is cross-shaped, and a fixing component 8 for fixing the gear 6 is provided in the mounting groove 7. The fixing component 8 is cross-shaped and fixed in the mounting groove 7. The fixing component 8 includes two symmetrical movable columns 9, and the movable columns 9 are connected to each other by a fixing block 10. The fixing component 8 is placed into the mounting groove 7 of the gear teeth 4 in the gear body 1 to ensure that the movable columns 9 can move freely. One end of the fixing block 10 is provided with an elastic bracket 11 with a return spring, and the other end of the fixing block 10 is provided with a snap-fit ​​post 12.

[0013] Further, the inner tooth 4 is provided with a through hole 13 for the movement of the clamping column 12, the mounting groove 7 is provided with a limiting block 14 for preventing the elastic support 11 from deviating, and the meshing tooth 6 is provided with a clamping groove 15 for the installation of the clamping column 12. During the meshing process, the clamping column 12 of the fixing assembly 8 is clamped into the meshing tooth 6 on the shaft tube 16, so as to realize the fixed connection between the shaft tube 16 and the gear body 1.

[0014] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0015] Although the terms such as gear body 1, shaft hole 2, outer tooth 3, inner tooth 4, mounting cavity 5, meshing tooth 6, mounting groove 7, fixing assembly 8, moving column 9, fixing block 10, elastic support 11, clamping column 12, through hole 13, limiting block 14, clamping groove 15, shaft tube 16, etc. are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A new type of fixed gear, comprising a gear body (1) and a shaft hole (2) in the center of the gear body (1), a shaft tube (16) is installed on the shaft hole (2), characterized in that, The gear body (1) is provided with external teeth (3) on the surface, the shaft hole (2) is provided with a plurality of internal teeth (4) on the inner surface, and the internal teeth (4) form an installation cavity (5) therebetween, the shaft tube (16) is provided with meshing teeth (6) matched with the installation cavity (5), the internal teeth (4) are provided with installation grooves (7), the installation grooves (7) are in cross shape, a fixing assembly (8) for fixing the meshing teeth (6) is arranged in the installation grooves (7), the fixing assembly (8) is in cross shape and is fixed in the installation grooves (7), the fixing assembly (8) comprises two symmetrical moving columns (9), and the moving columns (9) are connected through a fixing block (10), one end of the fixing block (10) is provided with an elastic support (11) with a reset spring, and the other end of the fixing block (10) is provided with a clamping column (12).

2. A novel fixed gear as claimed in claim 1, wherein, The internal teeth (4) are provided with through holes (13) for the movement of the clamping column (12), the installation grooves (7) are provided with limiting blocks (14) for preventing the deviation of the elastic support (11), and the meshing teeth (6) are provided with clamping grooves (15) for the installation of the clamping column (12).

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