Light-weight speed reducer gear assembly

Abstract

The utility model discloses a light-weight speed reducer gear assembly which comprises a speed reducer box body arranged outside. The main speed reducing mechanism is arranged at the upper part in the speed reducer box body, and the auxiliary speed reducing mechanism is arranged at the lower part in the speed reducer box body; wherein the main speed reducing mechanism comprises a main holding and positioning frame, and the main holding and positioning frame and a first inner gear ring on the upper portion of the interior of the speed reducer box body are distributed in a mutually corresponding mode; the auxiliary speed reducing mechanism comprises an auxiliary holding and positioning frame. According to the light-weight speed reducer gear assembly, the stability of the main speed reduction gear and the auxiliary speed reduction gear in the operation process is improved through the main retaining positioning frame and the auxiliary retaining positioning frame which are of triangular hollow structures and are arranged in the speed reducer box body, and the main speed reduction gear and the auxiliary speed reduction gear which are different in diameter form a rotating speed difference; therefore, the stability and the strength are improved while speed reduction is carried out, and the light weight of the gear assembly is guaranteed to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a lightweight reducer gear assembly. Background Art

[0002] A reducer is a mechanical device that can reduce the speed of a motor and increase the output torque. It mainly uses the planetary gears and sun gears that mesh with each other and the inner gear ring to reduce the rotation speed from the input shaft to the output shaft. It has the unique characteristics of power splitting and multi-tooth meshing.

[0003] For example, a lightweight gear reducer disclosed in publication number CN217683150U is provided with a driven gear set that can be freely combined and superimposed. Through such a combination, the transmission ratio of the gear parts is changed and adjusted, so that the device has the potential for different transmission ratios under the same housing condition, and the gear ring 1, gear ring 2 and driven gear are all independent structures, which are convenient for individual replacement and use, and can also be superimposed and used in combination, with more choices;

[0004] However, the above-mentioned lightweight reducer gear assembly still has the following problems in actual use: although the differential speed is generated by the meshing of large-diameter gears and small-diameter gears to achieve a deceleration effect, such gears cannot have both high-strength input and output during the meshing process. At the same time, a single reduction gear cannot guarantee its stability during operation, and it is easy to generate gaps between gears during movement, thereby affecting the strength and stability of the transmission;

[0005] Therefore, we propose a lightweight reducer gear assembly to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a lightweight reducer gear assembly, in order to solve the problem that although the existing lightweight reducer gears achieve a deceleration effect by meshing large-diameter gears with small-diameter gears to generate a differential, such gears cannot have both high-strength input and output during the meshing process, and a single reduction gear cannot guarantee its stability during operation, and it is easy to generate gaps between the gears during movement, thereby affecting the strength and stability of the transmission.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight reducer gear assembly, comprising a reducer housing arranged outside, and a first inner gear ring and a second inner gear ring fixedly mounted on the upper and lower sides of the reducer housing;

[0008] The invention also comprises: a main reduction mechanism is arranged on the upper part of the reducer housing, and a secondary reduction mechanism is arranged on the lower part of the reducer housing;

[0009] The main reduction mechanism includes a main retaining and positioning frame, and the main retaining and positioning frame and the first inner gear ring on the upper part of the reducer housing are arranged correspondingly;

[0010] The auxiliary reduction mechanism includes an auxiliary retaining and positioning frame, and the auxiliary retaining and positioning frame and the second inner gear ring at the lower part of the reducer housing are arranged correspondingly to each other.

[0011] Preferably, the main reduction mechanism includes an input shaft, and a main input gear is fixedly arranged at the lower end of the input shaft, and the main input gear is rotatably arranged at the inner center position of the main retaining and positioning frame through a bearing, and a main reduction gear is rotatably arranged at the inner triangle of the main retaining and positioning frame through a bearing.

[0012] Preferably, the main input gear included in the main reduction mechanism is meshedly connected with the main reduction gear arranged at the triangle inside the main retaining and positioning frame, and the main reduction gear arranged at equal angles is meshedly connected to the inner wall of the first internal gear ring above the reducer housing, and a transmission shaft is fixedly arranged at the center position below the main retaining and positioning frame.

[0013] Preferably, the auxiliary reduction mechanism includes a auxiliary input gear, and the auxiliary input gear is rotatably arranged at the internal center position of the auxiliary retaining and positioning frame, and the middle part of the auxiliary input gear is fixedly connected to the bottom end of the transmission shaft included in the main reduction mechanism, and the auxiliary reduction gear is rotatably arranged at the internal triangle of the auxiliary retaining and positioning frame through a bearing.

[0014] Preferably, the auxiliary input gear included in the auxiliary reduction mechanism is meshedly connected with the auxiliary reduction gear arranged at the triangle inside the auxiliary retaining and positioning frame, and the auxiliary reduction gears arranged at equal angles are meshedly connected to the inner wall of the second internal gear ring at the lower part of the reducer housing, and an output shaft is fixedly arranged at the lower center position of the auxiliary retaining and positioning frame.

[0015] Preferably, the diameter of the main reduction gear included in the main reduction mechanism is smaller than the diameter of the secondary input gear included in the secondary reduction mechanism, and the main retaining positioning frame included in the main reduction mechanism and the secondary retaining positioning frame included in the secondary reduction mechanism are both arranged in a hollow triangular structure distribution, thereby improving the stability and strength of the main retaining positioning frame and the secondary retaining positioning frame during rotational operation.

[0016] Preferably, as described.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the lightweight reducer gear assembly improves the stability of the main reduction gear and the auxiliary reduction gear during operation through the main retaining and positioning frame and the auxiliary retaining and positioning frame with a triangular hollow structure inside the reducer housing, and the main reduction gear and the auxiliary reduction gear with different diameters form a speed difference, so as to improve the stability and strength while reducing speed, and ensure the lightness of the gear assembly to the greatest extent. The specific contents are as follows:

[0018] 1. The rotation of the input shaft drives the main input gear to mesh with the main reduction gear inside the main retaining and positioning frame, and synchronously mesh with the first internal gear ring. The main reduction gear orbits and drives the main retaining and positioning frame to rotate inside the reducer housing, and the main retaining and positioning frame drives the transmission shaft fixedly connected to the middle of the bottom end to rotate synchronously;

[0019] Furthermore, the main reduction gear having a larger diameter than the main input gear forms a differential therewith, so as to drive the main retaining and positioning frame and the transmission shaft to rotate at a slower speed, and transmit the slower rotation to the auxiliary reduction mechanism below through the transmission shaft;

[0020] 2. The transmission shaft drives the auxiliary input gear to make it mesh with the auxiliary reduction gear to rotate synchronously, and the auxiliary reduction gear meshes with the second internal gear ring inside the reducer housing, so that when the second internal gear ring is in a fixed state, the auxiliary reduction gear revolves to drive the auxiliary holding and positioning frame to synchronize, and at this time, the auxiliary holding and positioning frame drives the output shaft at the bottom to rotate;

[0021] Furthermore, the diameter of the main reduction gear is smaller than the diameter of the auxiliary input gear, thereby forming a speed difference, so as to ultimately reduce the rotation speed of the output shaft. At the same time, the hollow triangular structure of the main retaining frame and the auxiliary retaining frame can improve the stability and strength of the main retaining frame and the auxiliary retaining frame during rotation, and maximize the lightweight of the gear assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0024] Figure 3 This is a schematic diagram of the installation structure of the first inner gear ring and the second inner gear ring of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the main holding and positioning frame and the auxiliary holding and positioning frame of the utility model;

[0026] Figure 5This is a schematic diagram of the installation structure of the auxiliary input gear of the utility model;

[0027] Figure 6 This is a schematic diagram of the installation structure of the transmission shaft of the utility model;

[0028] Figure 7 This is a schematic diagram of the output shaft installation structure of the utility model.

[0029] In the figure: 1. reducer housing; 2. first internal gear ring; 3. second internal gear ring; 4. output shaft; 5. main retaining and positioning frame; 6. auxiliary retaining and positioning frame; 7. input shaft; 8. main input gear; 9. main reduction gear; 10. transmission shaft; 11. auxiliary input gear; 12. auxiliary reduction gear. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0032] Embodiment 1: In order to illustrate the working principle of the lightweight reducer gear assembly, the present embodiment adopts the following technical scheme: a lightweight reducer gear assembly, comprising a reducer housing 1 arranged outside, and a first inner gear ring 2 and a second inner gear ring 3 fixedly mounted on the upper and lower sides of the reducer housing 1; a main reduction mechanism is arranged at the upper part of the reducer housing 1, and a secondary reduction mechanism is arranged at the lower part of the reducer housing 1; wherein the main reduction mechanism comprises a main retaining and positioning frame 5, and the main retaining and positioning frame 5 and the first inner gear ring 2 at the upper part of the reducer housing 1 are arranged correspondingly to each other;

[0033] The main reduction mechanism includes an input shaft 7, and a main input gear 8 is fixedly provided at the lower end of the input shaft 7, and the main input gear 8 is rotatably provided at the inner center position of the main retaining and positioning frame 5 through a bearing, and a main reduction gear 9 is rotatably provided at the inner triangle of the main retaining and positioning frame 5 through a bearing.

[0034] The main input gear 8 included in the main reduction mechanism is meshed with the main reduction gear 9 arranged at the triangle inside the main holding and positioning frame 5, and the main reduction gear 9 arranged at an equal angle is meshed with the inner wall of the first internal gear ring 2 at the upper part of the reducer housing 1, and a transmission shaft 10 is fixedly arranged at the center position below the main holding and positioning frame 5;

[0035] like Figure 2-Figure 4 As shown, first, the reducer housing 1 is installed so that its top output shaft 7 is connected to the output shaft end of the driving motor, and then when the driving motor drives the input shaft 7 to rotate, the input shaft 7 drives the main input gear 8 included in the main reduction mechanism to rotate, and at the same time, it engages with the main reduction gear 9 distributed at equal angles inside the main holding and positioning frame 5 to rotate, and at the same time, the main reduction gear 9 is engaged with the first internal gear ring 2 inside the reducer housing 1, so that the first internal gear ring 2 is in a fixed state, and the main reduction gear 9 drives the main holding and positioning frame 5 to rotate inside the reducer housing 1, and drives the transmission shaft 10 fixedly connected to the middle part of the bottom end to rotate synchronously through the main holding and positioning frame 5. At this time, the main reduction gear 9 with a diameter larger than the main input gear 8 forms a differential with it, so as to drive the main holding and positioning frame 5 and the transmission shaft 10 to rotate at a slower speed, and transmit the slower rotation to the auxiliary reduction mechanism below through the transmission shaft 10.

[0036] Embodiment 2: In order to illustrate the working principle of the lightweight reducer gear assembly, the present embodiment adopts the following technical scheme, wherein the auxiliary reduction mechanism includes an auxiliary holding and positioning frame 6, and the auxiliary holding and positioning frame 6 and the second inner gear ring 3 at the lower part of the reducer housing 1 are arranged correspondingly to each other; the auxiliary reduction mechanism includes an auxiliary input gear 11, and the auxiliary input gear 11 is rotatably arranged at the inner center position of the auxiliary holding and positioning frame 6, and the middle part of the auxiliary input gear 11 is fixedly connected to the bottom end of the transmission shaft 10 included in the main reduction mechanism, and the auxiliary reduction gear 12 is rotatably arranged at the inner triangle of the auxiliary holding and positioning frame 6 through a bearing;

[0037] The auxiliary input gear 11 included in the auxiliary reduction mechanism is meshed with the auxiliary reduction gear 12 arranged at the triangle inside the auxiliary holding and positioning frame 6, and the auxiliary reduction gear 12 arranged at an equal angle is meshed with the inner wall of the second inner gear ring 3 at the lower part of the reducer housing 1, and the output shaft 4 is fixedly arranged at the lower center position of the auxiliary holding and positioning frame 6;

[0038] The diameter of the main reduction gear 9 included in the main reduction mechanism is smaller than the diameter of the auxiliary input gear 11 included in the auxiliary reduction mechanism, and the main retaining and positioning frame 5 included in the main reduction mechanism and the auxiliary retaining and positioning frame 6 included in the auxiliary reduction mechanism are both arranged in a hollow triangular structure distribution, thereby improving the stability and strength of the main retaining and positioning frame 5 and the auxiliary retaining and positioning frame 6 during rotation operation;

[0039] like Figure 4 , Figure 6-Figure 7As shown, during the rotation of the transmission shaft 10 inside the main reduction mechanism, it drives the auxiliary input gear 11 fixedly connected at the bottom end to rotate, and the auxiliary input gear 11 drives the auxiliary reduction gear 12 equiangularly distributed inside the auxiliary holding and positioning frame 6 to rotate synchronously, and the auxiliary reduction gear 12 is meshed with the second internal gear ring 3 inside the reducer housing 1, so that when the second internal gear ring 3 is in a fixed state, the auxiliary reduction gear 12 revolves to drive the auxiliary holding and positioning frame 6 to be synchronized. At this time, the auxiliary holding and positioning frame 6 drives the output shaft body 4 at the bottom to rotate. Because the diameter of the main reduction gear 9 is smaller than that of the auxiliary input gear 11, the main reduction gear 9 and the auxiliary input gear 11 can form a speed difference, so as to finally reduce the rotation speed of the output shaft body 4, thereby achieving the deceleration effect. At the same time, the hollow triangular structure of the main holding and positioning frame 5 and the auxiliary holding and positioning frame 6 improves the stability and strength of the main holding and positioning frame 5 and the auxiliary holding and positioning frame 6 during rotation, and maximizes the lightweight of the gear assembly.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightweight reducer gear assembly, comprising a reducer housing (1) arranged outside, and a first inner gear ring (2) and a second inner gear ring (3) fixedly mounted on upper and lower sides of the reducer housing (1); It is characterized in that Also includes: A main reduction mechanism is arranged at the upper part of the reducer housing (1), and a secondary reduction mechanism is arranged at the lower part of the reducer housing (1); The main reduction mechanism comprises a main retaining and positioning frame (5), and the main retaining and positioning frame (5) and the first internal gear ring (2) at the upper part of the reducer housing (1) are arranged in a corresponding distribution to each other; The auxiliary reduction mechanism comprises an auxiliary retaining and positioning frame (6), and the auxiliary retaining and positioning frame (6) and the second internal gear ring (3) at the lower part of the reducer housing (1) are arranged in a corresponding distribution to each other.

2. A lightweight reducer gear assembly according to claim 1, characterized in that: The main reduction mechanism comprises an input shaft (7), a main input gear (8) is fixedly arranged at the lower end of the input shaft (7), and the main input gear (8) is rotatably arranged at the inner center position of the main retaining and positioning frame (5) via a bearing, and a main reduction gear (9) is rotatably arranged at the inner triangle of the main retaining and positioning frame (5) via a bearing.

3. A lightweight reducer gear assembly according to claim 2, characterized in that: The main input gear (8) included in the main reduction mechanism is meshedly connected with a main reduction gear (9) arranged at a triangular position inside the main retaining and positioning frame (5), and the main reduction gear (9) arranged at an equal angle is meshedly connected to the inner wall of the first internal gear ring (2) at the upper part of the reducer housing (1), and a transmission shaft (10) is fixedly arranged at the center position below the main retaining and positioning frame (5).

4. A lightweight reducer gear assembly according to claim 1, characterized in that: The auxiliary reduction mechanism comprises an auxiliary input gear (11), and the auxiliary input gear (11) is rotatably arranged at the inner center position of the auxiliary retaining and positioning frame (6), and the middle part of the auxiliary input gear (11) is fixedly connected to the bottom end of the transmission shaft (10) included in the main reduction mechanism, and the auxiliary reduction gear (12) is rotatably arranged at the inner triangle of the auxiliary retaining and positioning frame (6) via a bearing.

5. A lightweight reducer gear assembly according to claim 4, characterized in that: The auxiliary input gear (11) included in the auxiliary reduction mechanism and the auxiliary reduction gear (12) arranged at the inner triangular position of the auxiliary retaining and positioning frame (6) are meshed and connected with each other, and the auxiliary reduction gear (12) arranged at an equal angle is meshed and connected with the inner wall of the second inner gear ring (3) at the lower part of the reducer housing (1), and an output shaft (4) is fixedly arranged at the lower center position of the auxiliary retaining and positioning frame (6).

6. The lightweight reducer gear assembly according to claim 1, characterized in that: The diameter of the main reduction gear (9) included in the main reduction mechanism is smaller than the diameter of the auxiliary input gear (11) included in the auxiliary reduction mechanism, and the main retaining and positioning frame (5) included in the main reduction mechanism and the auxiliary retaining and positioning frame (6) included in the auxiliary reduction mechanism are both arranged in a hollow triangular structure distribution, thereby improving the stability and strength of the main retaining and positioning frame (5) and the auxiliary retaining and positioning frame (6) during rotational operation.

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