Output shaft assembly for pure rolling speed reducer

Abstract

An output shaft assembly for a pure rolling speed reducer belongs to the technical field of speed reducers and comprises an output shaft, the output shaft is connected with an output shaft frame, a plurality of transmission devices are evenly distributed on the circumference of the output shaft frame, each transmission device comprises a transmission pin shaft, and a transmission bearing I is installed on the upper portion of each transmission pin shaft. A transmission bearing II is installed in the middle of the transmission pin shaft, and a transmission bearing III is installed on the lower portion of the transmission pin shaft. The shock wave device and the transmission device and the transmission device and the shell do not slide through the transmission bearing I, the transmission bearing II and the transmission bearing III of the transmission device, on one hand, the transmission efficiency is improved, and on the other hand, the service life of the speed reducer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to an output shaft assembly for a pure rolling reducer. Background Art

[0002] In the existing movable tooth transmission device, sliding friction is inevitable between the shock wave device and the transmission device on the output shaft assembly, and between the transmission device and the housing, which reduces the transmission efficiency on the one hand, and causes wear of the shock wave device, the transmission device and the housing on the other hand, reducing the service life. This is the deficiency of the existing technology. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an output shaft assembly for a pure rolling reducer in view of the shortcomings of the prior art. Through the transmission bearings I, II and III of the transmission device, there is no sliding between the shock wave generator and the transmission device, and between the transmission device and the housing, thereby increasing the transmission efficiency on the one hand and increasing the service life of the reducer on the other.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: an output shaft assembly for a pure rolling reducer, comprising an output shaft, the output shaft is connected to an output shaft frame, a plurality of transmission devices are evenly distributed on the circumference of the output shaft frame, the transmission device comprises a transmission pin shaft, a transmission bearing I is installed on the upper part of the transmission pin shaft, a transmission bearing II is installed on the middle part of the transmission pin shaft, and a transmission bearing III is installed on the lower part of the transmission pin shaft.

[0005] Preferably, the output shaft frame includes an upper positioning plate arranged at the lower end of the output shaft, an upper placement plate is arranged at the lower end of the upper positioning plate, upper grooves are evenly distributed on the circumference of the upper placement plate, the upper placement plate is fixedly connected to the lower placement plate through a connecting column, lower grooves are evenly distributed on the circumference of the lower placement plate corresponding to the upper grooves, a lower positioning plate is arranged at the lower end of the lower placement plate, the upper end of the transmission pin shaft is arranged in the upper groove, the lower end of the transmission pin shaft is arranged in the lower groove, the transmission bearing I is arranged outside the upper groove, the transmission bearing III is arranged outside the lower groove, and the upper positioning plate and the lower positioning plate position the transmission pin shaft up and down. The output shaft frame can better set the transmission device, making the structure of the reducer more compact.

[0006] Preferably, the upper groove is a U-shaped groove; the lower groove is a U-shaped groove; the output shaft is fixedly connected to or integrally formed with the upper positioning plate; the upper positioning plate is fixedly connected to or integrally formed with the upper placement plate; the upper placement plate is fixedly connected to or integrally formed with the connecting column; the lower placement plate is fixedly connected to or integrally formed with the lower positioning plate; the lower placement plate is fixedly connected to the connecting column via screw III.

[0007] Compared with the prior art, the novel invention has the following beneficial effects: through the transmission bearings I, II and III of the transmission device, there is no sliding between the shock wave generator and the transmission device, and between the transmission device and the housing, which increases the transmission efficiency on the one hand and increases the service life of the reducer on the other.

[0008] It can be seen that compared with the prior art, the utility model has substantial characteristics and progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the output shaft assembly and the input shaft;

[0010] Figure 2 Schematic diagram of the three-dimensional structure of the output shaft frame;

[0011] Figure 3 It is a schematic diagram of the cross-sectional structure of the output shaft frame;

[0012] Figure 4 is a schematic diagram of the cross-sectional structure of the input shaft;

[0013] Figure 5 This is a schematic diagram of the cross-sectional structure of a pure rolling reducer.

[0014] In the figure: 1-input shaft, 1.1-elliptical protrusion, 1.2-shoulder Ⅰ, 1.3-shoulder Ⅱ, 2-input shaft bearing Ⅰ, 3-input shaft bearing Ⅱ, 4-input shaft end cover, 5-output shaft assembly, 5.1-upper placement plate, 5.1.1-upper groove, 5.2-lower placement plate, 5.2.1-lower groove, 5.3-connecting column, 5.4-upper positioning plate, 5.4.1-positioning step Ⅰ, 5.5-output shaft, 5.6-screw Ⅲ, 5.7-lower positioning plate, 5.7.1-positioning step Ⅱ, 6-output shaft bearing Ⅰ, 7-output shaft bearing Ⅱ, 8-output shaft end cover, 9-housing, 9.1-positioning hole, 9.2-inner transmission profile, 10-transmission pin, 11-transmission bearing Ⅰ, 12-transmission bearing Ⅱ, 13-transmission bearing Ⅲ, 14-screw Ⅰ, 15-screw Ⅱ. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] As shown in the figure, an output shaft assembly for a pure rolling reducer includes an output shaft 5.5, the output shaft 5.5 is connected to an output shaft frame, a plurality of transmission devices are evenly distributed on the circumference of the output shaft frame, the transmission device includes a transmission pin 10, a transmission bearing I11 is installed on the upper part of the transmission pin 10, a transmission bearing II12 is installed in the middle part of the transmission pin 10, and a transmission bearing III13 is installed on the lower part of the transmission pin 10.

[0017] The output shaft frame includes an upper positioning plate 5.4 arranged at the lower end of the output shaft 5.5, an upper placement plate 5.1 is arranged at the lower end of the upper positioning plate 5.4, the upper placement plate 5.1 is evenly distributed with upper grooves 5.1.1 on the circumference, the upper placement plate 5.1 is fixedly connected with a lower placement plate 5.2 through a connecting column 5.3, the lower placement plate 5.2 is evenly distributed with lower grooves 5.2.1 corresponding to the upper grooves 5.1.1 on the circumference, and a lower positioning plate 5.7 is arranged at the lower end of the lower placement plate 5.2, the upper end of the transmission pin shaft 10 is arranged in the upper groove 5.1.1, and the lower end of the transmission pin shaft 10 is arranged in the lower groove 5.2.1, the transmission bearing Ⅰ11 is arranged outside the upper groove 5.1.1, and the transmission bearing Ⅲ13 is arranged outside the lower groove 5.2.1, and the upper positioning plate 5.4 and the lower positioning plate 5.7 position the transmission pin shaft 10 up and down.

[0018] The upper groove 5.1.1 is a U-shaped groove; the lower groove 5.2.1 is a U-shaped groove; the output shaft 5.5 is fixedly connected or integrally formed with the upper positioning plate 5.4; the upper positioning plate 5.4 is fixedly connected or integrally formed with the upper placement plate 5.1; the upper placement plate 5.1 is fixedly connected or integrally formed with the connecting column 5.3; the lower placement plate 5.2 is fixedly connected or integrally formed with the lower positioning plate 5.7; the lower placement plate 5.2 is fixedly connected to the connecting column 5.3 by screw III 5.6.

[0019] A pure rolling reducer using the above output shaft assembly comprises a fixed housing 9, the housing 9 is provided with a positioning hole 9.1 for fixing the housing 9, an input shaft 1 is rotatably mounted in the housing 9, the input shaft 1 is provided with an elliptical protrusion 1.1, an output shaft assembly 5 is rotatably mounted on the housing 9, the output shaft assembly 5 comprises an output shaft 5.5, the output shaft 5.5 is connected to an output shaft frame, and transmission devices are evenly distributed on the circumference of the output shaft frame;

[0020] The transmission bearing II 12 matches the position of the elliptical protrusion 1.1. When the input shaft 1 rotates, the elliptical protrusion 1.1 presses the transmission pin 10 outward through the transmission bearing II 12. The transmission bearing I 11 and the transmission bearing III 13 on the transmission pin 10 move along the inner transmission contour of the outer shell 9, so that the transmission pin 10 drives the output shaft assembly 5 to rotate.

[0021] The upper end of the input shaft 1 extends into the upper positioning plate 5.4, and an input shaft bearing I2 is arranged between the upper end of the input shaft 1 and the upper positioning plate 5.4. A positioning step I5.4.1 is arranged in the positioning plate 5.4, and the positioning step I5.4.1 and the shoulder I1.2 on the input shaft 1 position the input shaft bearing I2 up and down; the lower end of the input shaft 1 passes through the lower positioning plate 5.7, and an input shaft bearing II3 is arranged between the lower end of the input shaft 1 and the lower positioning plate 5.7, and a positioning step II5.7.1 is arranged on the lower positioning plate 5.7, and the positioning step II5.7.1 and the shoulder II1.3 on the input shaft 1 position the input shaft bearing II3 up and down.

[0022] Preferably, an output shaft bearing I6 is provided between the upper positioning plate 5.4 and the housing 9, and an output shaft bearing II7 is provided between the lower positioning plate 5.7 and the housing 9.

[0023] Preferably, an output shaft end cover 8 is sleeved on the outer side of the upper positioning plate 5.4, and the output shaft end cover 8 is fixedly connected to the housing 9, and the output shaft end cover 8 and the housing 9 position the output shaft bearing I6 up and down.

[0024] Preferably, an input shaft end cover 4 is sleeved on the outer side of the input shaft 1, and the input shaft end cover 4 is fixedly connected to the housing 9, and the input shaft end cover 4 and the housing 9 position the output shaft bearing II 7 up and down.

[0025] In the output shaft assembly for the pure rolling reducer, the elliptical protrusion 1.1 on the input shaft 1 pushes the transmission device. Specifically, the elliptical protrusion 1.1 squeezes the transmission pin 10 outward through the transmission bearing II 12 under the rotation of the input shaft 1, and the transmission bearing I 11 and the transmission bearing III 13 on the transmission pin 10 move along the inner transmission contour of the outer shell 9, so that the transmission pin 10 drives the output shaft assembly 5 to rotate. There is no sliding between the elliptical protrusion 1.1 and the transmission pin 10, and between the transmission pin 10 and the outer shell 9, which effectively increases the service life of the reducer; and there is line contact between the elliptical protrusion 1.1 and the transmission pin 10, and between the transmission pin 10 and the outer shell 9, which can effectively improve the bearing capacity.

[0026] In short, the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An output shaft assembly for a pure rolling reducer, characterized in that: It comprises an output shaft (5.5), the output shaft (5.5) is connected to an output shaft frame, and a plurality of transmission devices are evenly distributed on the circumference of the output shaft frame. The transmission device comprises a transmission pin shaft (10), a transmission bearing I (11) is installed on the upper part of the transmission pin shaft (10), a transmission bearing II (12) is installed on the middle part of the transmission pin shaft (10), and a transmission bearing III (13) is installed on the lower part of the transmission pin shaft (10).

2. The output shaft assembly for a pure rolling reducer according to claim 1, characterized in that: The output shaft frame comprises an upper positioning plate (5.4) arranged at the lower end of the output shaft (5.5), an upper placement plate (5.1) being arranged at the lower end of the upper positioning plate (5.4), and upper grooves ( 5.1.1), the upper placement plate (5.1) is fixedly connected to the lower placement plate (5.2) via a connecting column (5.3), the lower placement plate (5.2) is uniformly distributed around the circumference with lower grooves (5.2.1) corresponding to the upper grooves (5.1.1), the lower end of the lower placement plate (5.2) is provided with a lower positioning plate (5.7), and the upper end of the driving pin shaft (10) is provided in the upper groove ( The transmission pin shaft (10) is arranged in the lower groove (5.2.1), the transmission bearing I (11) is arranged outside the upper groove (5.1.1), the transmission bearing III (13) is arranged outside the lower groove (5.2.1), and the upper positioning plate (5.4) and the lower positioning plate (5.7) position the transmission pin shaft (10) up and down.

3. The output shaft assembly for a pure rolling reducer according to claim 2, characterized in that: The upper groove (5.1.1) is a U-shaped groove.

4. The output shaft assembly for a pure rolling reducer according to claim 2, characterized in that: The lower groove (5.2.1) is a U-shaped groove.

5. The output shaft assembly for a pure rolling reducer according to claim 2, characterized in that: The output shaft (5.5) is fixedly connected to or integrally formed with the upper positioning plate (5.4).

6. The output shaft assembly for a pure rolling speed reducer according to claim 4, characterized in that: The upper positioning plate (5.4) is fixedly connected to or integrally formed with the upper placement plate (5.1).

7. The output shaft assembly for a pure rolling speed reducer according to claim 5, characterized in that: The upper placement plate (5.1) and the connecting column (5.3) are fixedly connected or integrally formed.

8. The output shaft assembly for a pure rolling speed reducer according to claim 6, characterized in that: The lower placement plate (5.2) and the lower positioning plate (5.7) are fixedly connected or integrally formed.

9. The output shaft assembly for a pure rolling speed reducer according to claim 7, characterized in that: The lower placement plate (5.2) is fixedly connected to the connecting column (5.3) via screws III (5.6).

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