Transmission gear mounting structure

Abstract

The utility model relates to a transmission gear mounting structure which comprises a base (1) and a gear (2) rotationally mounted on the base (1), a mounting hole (3) is formed in the base (1), and a plurality of notch grooves (4) are formed in the mounting hole (3); a plurality of buckles (5) are arranged on the gear (2), and the buckles (5) are inserted into the notch grooves (4) and rotate, so that the gear (2) is clamped and mounted in the mounting hole (3); the notch grooves (4) and the buckles (5) are equal in number and correspond in position. The transmission gear installation structure is simple in structure, low in cost and easy to assemble.

Description

Technical Field

[0001] This utility model relates to a transmission gear mounting structure and belongs to the field of mechanical equipment technology. Background Technology

[0002] Gear transmission refers to a device that transmits motion and power through gear pairs. It is one of the most widely used mechanical transmission methods in modern equipment. In existing technologies, gears generally need to be installed with shafts via fixed connections such as square key connections, spline connections, welded connections, or tapered connections to achieve power transmission at the shaft end. Bearings and other positioning and support components are also required. In simple transmission applications with relatively low power demands, if existing gear and shaft transmission installation structures are still used, the corresponding gear and shaft machining and assembly processes become complex and costly, which is detrimental to overall equipment cost control. Therefore, there is an urgent need for a new type of transmission gear installation structure that is simple in structure, low in cost, and easy to assemble. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a new type of transmission gear mounting structure that is simple in structure, low in cost, and easy to assemble, so as to meet the actual needs of reducing manufacturing costs and improving assembly efficiency in simple power transmission applications.

[0004] The purpose of this utility model is achieved as follows:

[0005] A transmission gear mounting structure includes a base and a gear rotatably mounted on the base. The base has a mounting hole with a plurality of notches. The gear has a plurality of snap fasteners that insert into the notches and rotate to engage the gear in the mounting hole. The notches and snap fasteners are equal in number and correspond in position.

[0006] Furthermore, there are two notches and two snap-fits.

[0007] Furthermore, the two notches of the mounting hole are 180 degrees apart; the two latches of the gear are 180 degrees apart.

[0008] Furthermore, the gear is a half gear with a working rotation angle range of 0~180 degrees.

[0009] Furthermore, a limiting block is provided in the central hole of the gear for transmission between the gear and the shaft.

[0010] Furthermore, a stop is provided on the gear to transmit the rotational power of the gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model uses a snap-on mechanism on the gear and a notch on the base to cooperate with each other. The snap-on structure is used to position and install the transmission gear, eliminating the need for bearings or other supporting positioning components. By setting a limiting block in the inner hole of the gear and cooperating with a limiting groove on the shaft, the power transmission between the gear and the shaft is realized. This eliminates the need for complex key connections and other traditional shaft connection structures, simplifying the transmission gear installation structure, reducing production costs, and simplifying the assembly process. Attached Figure Description

[0013] Figure 1 This is a front view of the transmission gear mounting structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the back structure of a transmission gear mounting structure according to the present invention.

[0015] Figure 3 This is a schematic diagram of the base mounting hole structure of a transmission gear mounting structure according to the present invention.

[0016] Figure 4 This is a schematic diagram of a gear and shaft transmission assembly structure for a transmission gear mounting structure according to the present invention.

[0017] in:

[0018] 1. Base, 2. Gear, 3. Mounting hole, 4. Notch, 5. Buckle, 6. Limiting block, 7. Stop, 8. Shaft. Detailed Implementation

[0019] See Figures 1-4 This utility model relates to a transmission gear mounting structure, comprising a base 1 and a gear 2 rotatably mounted on the base 1; the base 1 is provided with mounting holes 3, and a plurality of notches 4 are provided in the mounting holes 3; the gear 2 is provided with a plurality of latches 5; the number of notches 4 and latches 5 are equal and their positions correspond. In this embodiment, there are two notches 4 and two latches 5, wherein the positions of the two notches 4 differ by 180 degrees, the positions of the two latches 5 differ by 180 degrees, and the working rotation angle range of the gear 2 is 0~180 degrees;

[0020] Using the space in the notch 4, the buckle 5 is inserted into the corresponding notch 4 and rotated. The buckle 5 hooks onto the back of the base 1, thereby snapping the gear 2 into the mounting hole 3.

[0021] A limiting block 6 is provided in the center hole of the gear 2, which cooperates with the limiting groove provided on the shaft 8 to realize the transmission between the gear 2 and the shaft 8. In applications with small transmission force, it can replace the spline shaft connection method, simplifying the connection structure and reducing production costs. The gear 2 is a half gear and is provided with a stop 7. The half gear and the stop 7 are used to transmit the transmission force of the shaft 8 outward. The stop 7 can also realize other functional applications such as functional limit opening and closing lock.

[0022] This invention employs a snap-fit ​​positioning and mounting method for the transmission gear, eliminating the need for supporting positioning components such as bearings. Power transmission between the gear and shaft 8 is achieved through a limiting block within the gear's inner hole that engages with a limiting groove on the shaft 8. This eliminates the need for complex key connections or other traditional shaft connection structures, simplifying the transmission gear mounting structure, reducing production costs, and streamlining the assembly process. Furthermore, to further reduce production costs, in simple power transmission applications, the gear 2 can be manufactured using a one-time molding method such as injection molding.

[0023] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A transmission gear mounting structure comprising a base (1) and a gear (2) which is rotatably mounted to the base (1), characterized by: The base (1) is provided with a mounting hole (3), and a plurality of notched grooves (4) are arranged on the mounting hole (3); the gear (2) is provided with a plurality of buckles (5), the buckle (5) is inserted into the notched groove (4) and rotated, the gear (2) is clamped and mounted in the mounting hole (3); the number of the notched groove (4) and the buckle (5) is equal, and the positions are corresponding.

2. The transmission gear mounting structure according to claim 1, characterized by: The number of the notched groove (4) and the buckle (5) is two.

3. The transmission gear mounting structure according to claim 2, characterized by: The positions of the two notched grooves (4) of the mounting hole (3) are different by 180 degrees; the positions of the two buckles (5) of the gear (2) are different by 180 degrees.

4. The transmission gear mounting structure according to claim 3, characterized by: The gear (2) is a half gear, and the working rotation angle range is 0~180 degrees.

5. The transmission gear mounting structure according to claim 1, characterized by: A limiting block (6) is arranged in the center hole of the gear (2) and cooperates with a limiting sliding groove arranged on the shaft (8), and is used for transmission between the gear (2) and the shaft (8).

6. The transmission gear mounting structure according to claim 1, characterized by: A stop block (7) is arranged on the gear (2) and is used for transmitting the rotating power of the gear (2).

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