Flexible gear connecting flange structure of harmonic reducer

Abstract

A flexible gear connecting flange structure of a harmonic reducer comprises a flexible gear, an output flange and a connecting flange, a center hole is formed in the bottom of the flexible gear, a shaft step is arranged in the center of the connecting flange, and the length of the shaft step is larger than the thickness of the center hole in the bottom of the flexible gear. The outer ring of the shaft step penetrates through the bottom center hole of the flexible gear, enters the center through hole of the output flange and is tightly attached to the inner wall of the output flange. According to the flexible gear connecting flange structure of the harmonic speed reducer, the shaft step of the connecting flange is long, the outer ring of the shaft step can penetrate through the bottom of the flexible gear to enter the central through hole of the output flange and be tightly attached to the inner wall of the central through hole, and therefore the flexible gear connecting flange structure of the harmonic speed reducer can rapidly achieve concentricity of the flexible gear and the connecting flange. Therefore, the flexible gear and the output flange are convenient to assemble, the assembling difficulty is reduced, the concentricity of the flexible gear and the output flange is greatly improved, and the service life of the flexible gear and the output flange is prolonged.

Description

Technical Field

[0001] This utility model relates to harmonic reducer components, specifically to a flexible wheel connection flange structure for a harmonic reducer. Background Technology

[0002] The existing flexure connection flange structure of harmonic reducers is as follows: Figure 1 As shown, it includes a flexible wheel 11, an existing connecting flange 14', and an output flange 12, which are fixed together. Since the existing connecting flange 14' does not contact the output flange 12, it only fits the bottom of the flexible wheel 11 against the output flange 12. Therefore, the connecting flange 14' only serves to secure the flexible wheel. When assembling the flexible wheel and output flange, a special tooling fixture must first be used to achieve initial concentricity. After basic installation, experienced technicians are needed to fine-tune the assembly using dial indicators to ensure a higher degree of concentricity. Therefore, the entire assembly process of the bottom of the flexible wheel 11 and the output flange 12 is complex, lengthy, and requires highly skilled assemblers. It is also prone to concentricity defects, which can severely reduce product lifespan. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned defects of the prior art and provide a flexible wheel connection flange structure for a harmonic reducer, so that the flexible wheel and the output flange can be more easily kept concentric.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a flexible wheel connecting flange structure for a harmonic reducer, including a flexible wheel, an output flange, and a connecting flange. The flexible wheel has a central hole at its bottom, and the connecting flange has a shaft step at its center with a length greater than the thickness of the central hole at the bottom of the flexible wheel. Thus, the outer ring of the shaft step passes through the central hole at the bottom of the flexible wheel and enters the central through hole of the output flange and is in close contact with its inner wall.

[0005] Even better, the flexible wheel, output flange, and connecting flange are fixed together with fixing screws.

[0006] Compared with the prior art, the advantages of this utility model are as follows: the connecting flange in the flexure connecting flange structure of the harmonic reducer of this utility model has a longer shaft step, and its outer ring can pass through the bottom of the flexure and enter the central through hole of the output flange and closely adhere to the inner wall of the central through hole. Therefore, the flexure connecting flange structure of the harmonic reducer can quickly achieve concentricity between the flexure and the connecting flange. As a result, the flexure and the output flange are easy to assemble, reducing the assembly difficulty and greatly improving the concentricity between the flexure and the output flange, thereby improving their service life. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the flexure connection flange structure of an existing harmonic reducer.

[0008] Figure 2 This is a schematic diagram of the flexible wheel connection flange structure of the harmonic reducer according to an embodiment of the present utility model.

[0009] Figure 3 This is a schematic diagram of the flange structure of the flexure connecting flange structure of the harmonic reducer according to an embodiment of the present utility model.

[0010] Figure 4 This is a three-dimensional schematic diagram of the flexible wheel connection flange structure of the harmonic reducer according to an embodiment of the present utility model.

[0011] The following labels are used in the diagram: 11, flexible wheel; 12, output flange; 13, fixing screw; 14, connecting flange; 141, shaft step; 14', existing connecting flange. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] like Figure 2-4 As shown, a flexible wheel connection flange structure for a harmonic reducer includes a flexible wheel 11, an output flange 12, a fixing screw 13, and a connection flange 14.

[0014] The flexible wheel 11 has a central hole 111 at its bottom.

[0015] The bottom of the flexible wheel 11 is provided with an output flange 12, which can be connected to an external mechanism of the flexible wheel 11.

[0016] The connecting flange 14 is provided with a shaft step 141. The length of the shaft step 141 is greater than the thickness of the center hole 111 at the bottom of the flexible wheel 11. When the bottom of the flexible wheel 11 is connected to the output flange 112, the outer ring of the shaft step 141 passes through the center hole 111 at the bottom of the flexible wheel and enters the center through hole 121 of the output flange 12 and is in close contact with its inner wall, so that the flexible wheel 11 and the output flange 12 remain concentric. Then, the connecting flange 14, the bottom of the flexible wheel 11 and the output flange 12 are fixed together with the fixing screws 13.

[0017] The fixing screws 13 are arranged at intervals along the circumference, which makes the fixation more stable.

Claims

1. A flexible wheel connection flange structure for a harmonic reducer, characterized in that: It includes a flexible wheel, an output flange, and a connecting flange. The flexible wheel has a central hole at its bottom, and the connecting flange has a shaft step at its center with a length greater than the thickness of the central hole at the bottom of the flexible wheel. Thus, the outer ring of the shaft step passes through the central hole at the bottom of the flexible wheel and enters the central through hole of the output flange, where it is tightly attached to its inner wall.

2. The flexible wheel connection flange structure of the harmonic reducer according to claim 1, characterized in that: The flexible wheel, output flange, and connecting flange are fixed together by fixing screws.

3. The flexible wheel connection flange structure of the harmonic reducer according to claim 2, characterized in that: The fixing screws are arranged at intervals along the circumference.

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