Low-noise harmonic reducer structure

Abstract

The utility model discloses a low-noise harmonic reducer structure which comprises a harmonic reducer assembly, a flexible gear and a steel wheel, the steel wheel is sleeved outside the flexible gear, and a first noise reduction assembly and a second noise reduction assembly are respectively sleeved outside the harmonic reducer assembly. The harmonic reducer assembly is sleeved with the first noise reduction assembly and the second noise reduction assembly, the springs and the balls are arranged in the outer sides of the first noise reduction assembly and the second noise reduction assembly, and meanwhile the outer sides of the balls are clamped into the sliding groove parts on the inner wall of the flexible gear. The positioning pieces are inserted between the upper portions and the lower portions of the first noise reduction assembly and the second noise reduction assembly, noise is fully adsorbed through the first noise reduction assembly and the second noise reduction assembly, and the noise reduction effect of the harmonic reducer is effectively enhanced; and the positioning piece fixes the first noise reduction assembly and the second noise reduction assembly, so that the harmonic reducer can be conveniently fixed, disassembled and assembled.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer structure technology, specifically to a low-noise harmonic speed reducer structure. Background Technology

[0002] A harmonic gear reducer is a speed reduction device composed of three basic components: a fixed internal gear, a flexible gear (i.e., an elastic thin-walled sleeve whose base is connected to the driven shaft, with a gear ring formed on the generatrix at the beginning of the flexible gear), and a wave generator that causes radial deformation of the flexible gear. Existing harmonic reducers, due to the obstruction of the flexible gear during rotation, easily generate noise, affecting the reducer's performance. Furthermore, the noise reduction structure becomes less effective after a period of use, and replacing the noise reduction structure is inconvenient, further impacting the reducer's performance. Therefore, a low-noise harmonic reducer structure is proposed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a low-noise harmonic reducer structure to solve the problems mentioned in the background.

[0004] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution: a low-noise harmonic reducer structure, including a harmonic reducer assembly, a flexible wheel, and a steel wheel. The flexible wheel is fitted with a steel wheel. A first noise reduction assembly and a second noise reduction assembly are respectively fitted around the harmonic reducer assembly. The structures of the first noise reduction assembly and the second noise reduction assembly are the same. The first noise reduction assembly and the second noise reduction assembly are fitted with a flexible wheel. A spring and a ball are respectively provided on the inner side of the first noise reduction assembly. The outer side of the ball is inserted into the inner wall of the flexible wheel. Positioning members are inserted between the top and bottom of the first noise reduction assembly and the second noise reduction assembly.

[0005] Preferably, the outer side of the harmonic reducer assembly is pressed against the inner wall of the first noise reduction assembly and the inner wall of the second noise reduction assembly, and there are gaps between the top and bottom of the first noise reduction assembly and the second noise reduction assembly.

[0006] Preferably, both the outer inner side of the first noise reduction component and the outer inner side of the second noise reduction component are provided with multiple slots, and the multiple slots equally divide the first noise reduction component and the second noise reduction component.

[0007] Preferably, the bottom of the slot is fixedly connected to the bottom of the spring, and a portion of the rotating connecting ball is inserted into the upper part of the slot, while the lower part of the ball is tightly fitted to the top of the spring.

[0008] Preferably, the inner wall of the flexible wheel has a groove, and the outer part of the ball is engaged in the groove.

[0009] Preferably, the first noise reduction assembly and the second noise reduction assembly are provided with a pressing groove portion on the front surface, and the pressing groove portion is provided with a insertion hole portion.

[0010] Preferably, the positioning member is provided with an insertion column portion at both ends of the side surface, and the insertion column portion corresponds to the insertion hole portion.

[0011] Preferably, the insertion column portion is inserted into the insertion hole portion, and the positioning member is clamped into the pressing groove portion.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a harmonic reducer assembly is provided with the first noise reduction assembly and the second noise reduction assembly outside respectively, and the first noise reduction assembly and the second noise reduction assembly are provided with the spring and the ball in both sides, and the ball is clamped into the sliding groove portion on the inner wall of the flexible gear, and the positioning member is inserted between the first noise reduction assembly and the second noise reduction assembly, and the first noise reduction assembly and the second noise reduction assembly are used to adsorb the noise sufficiently, and the noise reduction effect of the harmonic reducer is enhanced effectively, and the positioning member fixes the first noise reduction assembly and the second noise reduction assembly, and the position of the harmonic reducer is fixed and disassembled conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creative labor.

[0015] Figure 1 It is the overall schematic diagram of the utility model;

[0016] Figure 2 It is the enlarged schematic diagram of A of the utility model;

[0017] Figure 3 It is the explosion schematic diagram of the first noise reduction assembly and the second noise reduction assembly of the utility model;

[0018] Figure 4 It is the enlarged schematic diagram of B of the utility model;

[0019] Figure 5 It is the structure overhead schematic diagram of the positioning member of the utility model.

[0020] The signs in the drawings represent as follows:

[0021] 1, harmonic reducer assembly; 2, flexspline; 201, sliding groove part; 3, steel wheel; 4, first noise reduction assembly; 5, second noise reduction assembly; 6, positioning piece; 601, insertion column part; 7, clamping groove part; 8, spring; 9, ball; 10, pressure groove part; 11, insertion hole part. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a low noise harmonic reducer structure, including harmonic reducer assembly 1, flexspline 2 and steel wheel 3, the outer sleeve of flexspline 2 is equipped with steel wheel 3, and the outer sleeve of harmonic reducer assembly 1 is equipped with first noise reduction assembly 4 and second noise reduction assembly 5 respectively, and the structure of first noise reduction assembly 4 is same with second noise reduction assembly 5, and meanwhile, the outer sleeve of first noise reduction assembly 4 and second noise reduction assembly 5 is equipped with flexspline 2, and the inside of the side surface of first noise reduction assembly 4 is respectively equipped with spring 8 and ball 9, and the outside of ball 9 is inserted in a circle in the inner wall of flexspline 2, and the positioning piece 6 is inserted between the upper and lower of first noise reduction assembly 4 and second noise reduction assembly 5.

[0024] In the embodiment, the outer side of harmonic reducer assembly 1 is pressed with the inner wall of first noise reduction assembly 4 and second noise reduction assembly 5, and there is a spacing between the upper and lower of first noise reduction assembly 4 and second noise reduction assembly 5.

[0025] Further, the outer side of first noise reduction assembly 4 and the outer side of second noise reduction assembly 5 are both provided with a plurality of clamping groove parts 7, and the plurality of clamping groove parts 7 equally divide first noise reduction assembly 4 and second noise reduction assembly 5.

[0026] Further, the bottom of spring 8 is fixedly connected to the inner bottom of clamping groove part 7, and a part of ball 9 is clamped into the upper part of clamping groove part 7, and the lower part of ball 9 is tightly attached to the top of spring 8.

[0027] Further, the inner wall of flexspline 2 is provided with sliding groove part 201, and the outer side of ball 9 is clamped into sliding groove part 201.

[0028] First noise reduction assembly 4 and second noise reduction assembly 5 are combined into one and wrapped outside harmonic reducer assembly 1, so that when harmonic reducer assembly 1 rotates, ball 9 in first noise reduction assembly 4 and second noise reduction assembly 5 works against the inner wall of flexspline 2.

[0029] Further, the first noise reduction assembly 4 and the second noise reduction assembly 5 are provided with a pressing groove part 10 on the upper and lower front surfaces, and a plug hole part 11 is arranged in the pressing groove part 10.

[0030] Further, the positioning member 6 is fixedly connected with a plug column part 601 at both ends of the side surface, and the plug column part 601 is correspondingly inserted into the plug hole part 11.

[0031] Further, the plug column part 601 is inserted into the plug hole part 11, and the positioning member 6 is clamped into the pressing groove part 10.

[0032] When the first noise reduction assembly 4 and the second noise reduction assembly 5 are sleeved outside the harmonic reducer assembly 1, the positioning member 6 is inserted into the upper and lower ends of the first noise reduction assembly 4 and the second noise reduction assembly 5, so that the first noise reduction assembly 4 and the second noise reduction assembly 5 are tightly pressed outside the harmonic reducer assembly 1.

[0033] Working principle:

[0034] The first noise reduction assembly 4 and the second noise reduction assembly 5 are sleeved outside the harmonic reducer assembly 1, and the first noise reduction assembly 4 and the second noise reduction assembly 5 are combined and tightly pressed outside the harmonic reducer assembly 1, so that the first noise reduction assembly 4 and the second noise reduction assembly 5 rotate with the harmonic reducer assembly 1, and the spring 8 and the ball 9 are arranged outside the first noise reduction assembly 4 and the second noise reduction assembly 5, and the ball 9 is clamped into the sliding groove part 201 on the inner wall of the flexible gear 2, so that the harmonic reducer assembly 1, the first noise reduction assembly 4 and the second noise reduction assembly 5 simultaneously act on the flexible gear 2, so that the flexible gear 2 normally rotates with the steel gear 3, and the first noise reduction assembly 4 and the second noise reduction assembly 5 simultaneously reduce the noise between the harmonic reducer assembly 1 and the flexible gear 2.

[0035] In addition, the positioning member 6 is inserted between the upper and lower parts of the first noise reduction assembly 4 and the second noise reduction assembly 5, and the plug column part 601 of the positioning member 6 is inserted into the plug hole part 11, so that the first noise reduction assembly 4 and the second noise reduction assembly 5 are tightly fixed as a whole, and the positioning member 6 facilitates the replacement of the first noise reduction assembly 4 and the second noise reduction assembly 5.

[0036] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above examples are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements are also considered to fall within the protection scope of the present application.

Claims

1. A low noise harmonic reducer structure comprising a harmonic reducer assembly (1), a flexspline (2) and a steel wheel (3), the flexspline (2) is sheathed with a steel wheel (3), characterized in that: The harmonic reducer assembly (1) is respectively sleeved with a first noise reduction assembly (4) and a second noise reduction assembly (5) outside, and the first noise reduction assembly (4) and the second noise reduction assembly (5) are the same in structure, and the first noise reduction assembly (4) and the second noise reduction assembly (5) are sleeved with a flexible gear (2) outside, the first noise reduction assembly (4) is respectively provided with a spring (8) and a ball (9) inside the side surface, and the ball (9) is inserted into the inner wall of the flexible gear (2) in a circle, and the positioning member (6) is inserted between the upper and lower portions of the first noise reduction assembly (4) and the second noise reduction assembly (5).

2. A low noise harmonic reducer structure according to claim 1, characterized in that: The outer side surface of the harmonic reducer assembly (1) is pressed with the inner walls of the first noise reduction assembly (4) and the second noise reduction assembly (5), and there is a gap between the upper and lower portions of the first noise reduction assembly (4) and the second noise reduction assembly (5).

3. A low noise harmonic reducer structure according to claim 2, characterized in that: The first noise reduction assembly (4) and the second noise reduction assembly (5) are both provided with a plurality of clamping groove portions (7) inside the outer side, and the plurality of clamping groove portions (7) divide the first noise reduction assembly (4) and the second noise reduction assembly (5) into equal parts.

4. A low noise harmonic reducer structure according to claim 3, characterized in that: The bottom of the clamping groove portion (7) is fixedly connected with the bottom of the spring (8), and the upper portion of the clamping groove portion (7) is clamped with a part of the rotatingly connected ball (9), and the lower portion of the ball (9) is tightly attached to the top of the spring (8).

5. A low noise harmonic reducer structure according to claim 4, characterized in that: The inner wall of the flexible gear (2) is provided with a sliding groove portion (201), and the sliding groove portion (201) is clamped with the outer side portion of the ball (9).

6. A low noise harmonic reducer structure according to claim 5, characterized in that: The upper and lower portions of the first noise reduction assembly (4) and the second noise reduction assembly (5) are both provided with a pressing groove portion (10) inside the front surface, and the pressing groove portion (10) is provided with a insertion hole portion (11) inside.

7. A low noise harmonic reducer structure according to claim 6, characterized in that: The side surface of the positioning member (6) is fixedly connected with an insertion column portion (601) at both ends, and the insertion column portion (601) corresponds to the insertion hole portion (11).

8. A low noise harmonic reducer structure according to claim 7, characterized in that: The insertion column portion (601) is inserted into the insertion hole portion (11), and the positioning member (6) is clamped into the pressing groove portion (10).

Images