Series transmission planetary reducer

Abstract

The utility model discloses a series transmission planetary reducer, which comprises a plurality of planetary gear reducers provided with a rotating shaft and an end shaft, and is characterized in that a square shaft is arranged on one side of the rotating shaft, a square hole is arranged in the end shaft, and when the plurality of planetary gear reducers are connected in series, the square hole is arranged in the square shaft. The square shaft is inserted into the square hole in a sliding mode, a connecting frame assembly is arranged between the planetary gear speed reducers, when the planetary gear speed reducers are independently arranged, the square shaft and the rotating shaft serve as the input ends of the speed reducers, after the rotating shaft drives the driving gear to rotate, the driving gear is meshed with the gear, and then the gear is driven to rotate. The gear rolls on one side of the gear ring, the connecting plate rotates to drive the end shaft to rotate, and the end shaft serves as the output end of the speed reducer.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a planetary reducer with series transmission. Background Art

[0002] When designing a planetary gear reducer with a large speed ratio, it is often done by setting up multiple sets of planetary gear sets inside the reducer, and using the matching connection between the multiple sets of planetary gear sets to achieve a relatively accurate large transmission ratio transmission function. The disadvantage is that when there are multiple transmission ratio requirements, the reducers with different transmission ratios can only be replaced adaptively. If multiple planetary gear reducers are connected in series, a more stable transmission process cannot be achieved by simply connecting them with a coupling. People have conducted a lot of research on this. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a planetary reducer with series transmission, which can solve the above-mentioned problems in the prior art.

[0004] The utility model is realized through the following technical scheme: a planetary reducer with serial transmission of the utility model is characterized in that it comprises a plurality of planetary gear reducers, a rotating shaft and an end shaft are arranged on the planetary gear reducer, and a square shaft is arranged on one side of the rotating shaft, a square hole is arranged in the end shaft, when a plurality of planetary gear reducers are connected in series, the square shaft is slidably inserted into the square hole, and a connecting frame assembly is arranged between the planetary gear reducers.

[0005] According to a further technical solution, the connecting frame assembly includes a connecting frame, inner rings are arranged at left and right ends of the connecting frame, a plurality of brackets are arranged between the inner rings and the connecting frame, a plurality of protrusions are arranged around the connecting frame, and through holes are arranged in the protrusions.

[0006] According to a further technical solution, the planetary gear reducer comprises a housing, a plurality of fixing blocks are arranged around the housing, and an inner hole is arranged in the fixing block.

[0007] A further technical solution also includes a polished rod, which passes through the protrusion and the inner hole. Both ends of the polished rod are provided with threaded parts, and the outer surface of the threaded part is threadedly connected with a nut, which abuts against the end face of the fixed block.

[0008] According to a further technical solution, the planetary gear reducer also includes a cover plate and a side plate, a gear ring is arranged in the housing, and two connecting plates are also included, three gears are rotatably arranged between the connecting plates, and the gears are meshed with the gear ring.

[0009] According to a further technical solution, an end face of the connecting plate on one side is fixed to the end shaft, and the end shaft passes through a through hole in the side plate.

[0010] According to a further technical solution, the rotating shaft is rotatably arranged in the connecting plate on the other side, and the rotating shaft rotatably passes through the cover plate.

[0011] The beneficial effects of the utility model are:

[0012] 1. By setting up a connecting frame, it can be connected between two reducers, and the square shaft of one reducer is inserted into the square hole of the end shaft of the other reducer for power connection, thereby maintaining the connection stiffness and improving the transmission stability. A fixing block, an inner hole and a protrusion are provided to facilitate the light rod to connect and fix the connecting frame and the box body, which can further improve the overall connection stability of the equipment and avoid affecting the stability of the transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a planetary reducer with series transmission according to the utility model;

[0015] Figure 2 for Figure 1 Installation diagram of the medium reducer;

[0016] Figure 3 for Figure 1 Schematic diagram of the internal structure of the medium reducer;

[0017] Figure 4 for Figure 3 Schematic diagram of the reducer from another perspective;

[0018] In the figure, the connecting frame 11, the box body 12, the bracket 21, the inner ring 22, the threaded portion 23, the bare rod 24, the protrusion 25, the connecting plate 31, the square shaft 32, the cover plate 34, the rotating shaft 35, the gear ring 37, the gear 38, the driving gear 41, the through hole 42, the side plate 43, the end shaft 44, the fixing block 45, the inner hole 46, and the square hole 51. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 4 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1The up-down, left-right, front-back directions of the projection relationship are consistent. The utility model is a planetary reducer with serial transmission, including multiple planetary gear reducers. The planetary gear reducer is provided with a rotating shaft 35 and an end shaft 44. A square shaft 32 is provided on one side of the rotating shaft 35. A square hole 51 is provided in the end shaft 44. When multiple planetary gear reducers are connected in series, the square shaft 32 is slidably inserted into the square hole 51 to realize the power connection process. A connecting frame assembly is provided between the planetary gear reducers, the end shaft 44 is used as the input shaft, and the square shaft 32 is used as the output shaft.

[0020] Advantageously, the connecting frame assembly includes a connecting frame 11, a hollow portion is provided inside the connecting frame 11, inner rings 22 are provided at the left and right ends of the connecting frame 11, a plurality of brackets 21 are provided between the inner ring 22 and the connecting frame 11, a plurality of protrusions 25 are provided around the connecting frame 11, and through holes are provided in the protrusions 25.

[0021] Advantageously, the planetary gear reducer includes a housing 12, a plurality of fixed blocks 45 are arranged around the housing 12, an inner hole 46 is arranged in the fixed block 45, and when the plurality of planetary gear reducers are connected in series between the connecting frames 11, a light rod 24 is arranged so that the light rod 24 passes through the protrusion 25 and the inner hole 46, and threaded portions 23 are arranged at both ends of the light rod 24, and a nut is arranged on the outer surface of the threaded portion 23 for threaded cooperation connection, and the nut abuts against the end face of the fixed block 45.

[0022] Advantageously, the planetary gear reducer further includes a detachable cover plate 34 and side plate 43 , a detachable gear ring 37 is disposed in the housing 12 , and further includes two connecting plates 31 , three gears 38 are rotatably disposed between the connecting plates 31 , and the gears 38 are meshed with the gear ring 37 .

[0023] Advantageously, an end surface of the connecting plate 31 on one side is fixed to an end shaft 44 , and the end shaft 44 passes through a through hole 42 in the side plate 43 .

[0024] Advantageously, a rotating shaft 35 is rotatably disposed in the connecting plate 31 on the other side, and the rotating shaft 35 rotatably passes through the cover plate 34 .

[0025] When the planetary gear reducer is provided separately, the square shaft 32 and the rotating shaft 35 are used as the input end of the reducer. After the rotating shaft 35 drives the driving gear 41 to rotate, the driving gear 41 is meshed with the gear 38, and the gear 38 rolls on one side of the gear ring 37. After the connecting plate 31 rotates, it drives the end shaft 44 to rotate, and the end shaft 44 serves as the output end of the reducer.

[0026] When multiple planetary gear reducers are connected in series, the connecting frame 11 is set between the boxes 12, the light rod 24 is passed through the inner hole 46 and the protrusion 25, and then the nut is locked on the outer surface of the threaded portion 23 to stably connect and fix the boxes 12 at both ends of the connecting frame 11.

[0027] When connected in series, the square shaft 32 in one of the reducers needs to be inserted into the square hole 51 of the end shaft 44 for plugging and power connection.

[0028] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A planetary reducer with serial transmission, comprising a plurality of planetary gear reducers, wherein the planetary gear reducers are provided with a rotating shaft (35) and an end shaft (44), characterized in that: A square shaft (32) is provided on one side of the rotating shaft (35), a square hole (51) is provided in the end shaft (44), and when a plurality of planetary gear reducers are connected in series, the square shaft (32) is slidably inserted into the square hole (51), and a connecting frame assembly is provided between the planetary gear reducers.

2. A planetary reducer with tandem transmission according to claim 1, characterized in that: The connecting frame assembly comprises a connecting frame (11), inner rings (22) are arranged at the left and right ends of the connecting frame (11), a plurality of brackets (21) are arranged between the inner rings (22) and the connecting frame (11), a plurality of protrusions (25) are arranged around the connecting frame (11), and through holes are arranged in the protrusions (25).

3. A planetary reducer with tandem transmission according to claim 2, characterized in that: The planetary gear reducer comprises a housing (12). A plurality of fixing blocks (45) are arranged around the housing (12). An inner hole (46) is arranged in the fixing block (45).

4. A planetary reducer with tandem transmission according to claim 3, characterized in that: It also includes a polished rod (24), which passes through the protrusion (25) and the inner hole (46), and threaded parts (23) are arranged at both ends of the polished rod (24). A nut is arranged on the outer surface of the threaded part (23) in a threaded connection, and the nut abuts against the end surface of the fixing block (45).

5. A planetary reducer with tandem transmission according to any one of claims 3-4, characterized in that: The planetary gear reducer also includes a cover plate (34) and a side plate (43). A gear ring (37) is arranged in the housing (12). The housing also includes two connecting plates (31). Three gears (38) are rotatably arranged between the connecting plates (31). The gears (38) are meshed with the gear ring (37).

6. A planetary reducer with tandem transmission according to claim 5, characterized in that: The end surface of the connecting plate (31) on one side is fixed to the end shaft (44), and the end shaft (44) passes through the through hole (42) in the side plate (43).

7. A planetary reducer with tandem transmission according to claim 6, characterized in that: The rotating shaft (35) is rotatably arranged in the connecting plate (31) on the other side, and the rotating shaft (35) rotatably passes through the cover plate (34).

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