Planetary gear speed reducer for servo structure

Abstract

The utility model belongs to the technical field of speed reducers, and particularly relates to a planetary gear speed reducer for a servo structure, which comprises a shell, a servo motor, a hollow shaft, a driving gear I, a driving gear II, a fluted disc, a driving shaft, an adjusting assembly and a supporting assembly, the hollow shaft is rotationally installed in the shell and located on the central axis of the shell, the servo motor is fixedly installed on the sealing plate, the section of an output shaft of the servo motor is in polygonal arrangement and is in axial sliding connection with the hollow shaft, and the first driving gear and the second driving gear are both fixedly arranged on the hollow shaft in a sleeving mode. The speed reducer is reasonable in design, can realize effective speed reduction of the driving shaft, can realize different speed reduction effects according to different requirements, can ensure the stability of the speed reduction effect, and has the advantages of simple structure, convenience in use, good speed reduction effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a planetary gear reducer for a servo structure. Background Art

[0002] With the rapid development of modern industrial technology, servo systems have been widely used in many fields, such as machinery, electronics, aviation, aerospace, etc. The servo system needs to achieve precise position control, speed control and torque control, so the transmission mechanism is required to have the characteristics of high precision, high efficiency and high reliability. Traditional reduction mechanisms often have problems such as complex structure, difficult maintenance and unstable reduction effect, which cannot meet the requirements of modern servo systems for transmission mechanisms. Therefore, it is of great practical significance to develop a planetary gear reducer for servo structure with simple structure, easy use, good reduction effect and stable reduction effect.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to solve the deficiencies in the background technology and provides a planetary gear reducer for a servo structure.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A planetary gear reducer for a servo structure, comprising a housing, a servo motor, a hollow shaft, a driving gear 1, a driving gear 2, a toothed disc, a driving shaft, an adjustment assembly and a support assembly;

[0006] One side of the shell is open, and a sealing plate is fixedly installed on the inner wall of the shell. The hollow shaft is rotatably installed in the shell and is located on the central axis of the shell. The servo motor is fixedly installed on the sealing plate, and the output shaft cross-section of the servo motor is polygonal and is axially slidably connected to the hollow shaft. The driving gear 1 and the driving gear 2 are both fixedly sleeved on the hollow shaft. The adjusting assembly is arranged in the shell and connected to the sealing plate and the hollow shaft. The supporting assembly is arranged in the shell, and the toothed disc is rotatably installed in the shell. A plurality of transmission gears 1 and a plurality of transmission gears 2 are arranged on the supporting assembly, and the plurality of transmission gears 1 and a plurality of transmission gears 2 are all meshed with the toothed disc and are respectively matched with the driving gear 1 and the driving gear 2. The driving shaft is rotatably installed on the side of the shell away from the opening, and one end of the driving shaft extends into the shell and is connected to the toothed disc.

[0007] Preferably, the support assembly includes a mounting ring, multiple rotating shafts and a support ring. The mounting ring is fixedly mounted on the inner wall of the shell, and multiple rotating shafts are rotatably mounted on the mounting ring. The multiple rotating shafts are arranged with the hollow shaft as the center. Multiple transmission gears are respectively fixedly mounted on the corresponding rotating shafts. The same support ring is rotatably mounted on one end of the multiple rotating shafts away from the mounting ring, and multiple transmission gears are all rotatably mounted on the support ring.

[0008] Preferably, the adjustment assembly includes an electric cylinder and a sliding plate, the electric cylinder is fixedly mounted on the sealing plate, the sliding plate is slidably mounted on the inner wall of the shell, the sliding plate is located between the mounting ring and the sealing plate, and the working end of the electric cylinder is fixedly mounted on the sliding plate.

[0009] Preferably, a plurality of guide rods are fixedly mounted on the sealing plate and the mounting ring, a plurality of guide holes are opened on the sliding plate, and the plurality of guide rods respectively penetrate the corresponding guide holes, and the number of the guide holes is greater than the number of the guide rods.

[0010] Preferably, a connecting rod is fixedly mounted on the inner wall of the toothed disc, and the driving shaft is radially fixedly mounted on the connecting rod and is coaxially arranged with the toothed disc.

[0011] Preferably, an oil pipe is fixedly mounted on the sealing plate, and a control valve is fixedly mounted on the oil pipe.

[0012] Preferably, a plurality of balls are rollingly mounted on the inner wall of the shell, and the plurality of balls are in contact with the outer peripheral surface of the gear disc.

[0013] Preferably, the diameter of the driving gear one is smaller than the diameter of the driving gear two, and the diameter of the transmission gear one is larger than the diameter of the transmission gear two.

[0014] The beneficial effects of the utility model are:

[0015] The support component is set up to provide stable support for the transmission gear one and the transmission gear two. At the same time, under the action of the adjustment component, the drive gear one and the transmission gear one can be controlled to enter a meshing state, or the drive gear two and the transmission gear two can be controlled to enter a meshing state as needed, thereby achieving different deceleration effects on the drive shaft while keeping the servo motor power and speed unchanged.

[0016] The setting of the guide rod and the guide hole can provide stable guidance for the sliding plate and reduce the influence of the sliding plate on the flow of lubricating oil in the housing. The setting of the oil pipe and the control valve can facilitate the filling of lubricating oil into the housing or the discharge of lubricating oil in the housing. The ball bearing can provide effective support for the gear disc, thereby reducing the friction resistance when the gear disc rotates.

[0017] In summary, the planetary gear reducer used in the servo structure is reasonably designed, can effectively decelerate the drive shaft, and can achieve different deceleration effects according to different needs. It has the advantages of simple structure, easy use, and good deceleration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a planetary gear reducer for a servo structure proposed by the utility model;

[0020] Figure 2 This is a schematic cross-sectional view of a planetary gear reducer for a servo structure proposed by the utility model;

[0021] Figure 3 It is a partial three-dimensional structural schematic diagram of a planetary gear reducer for a servo structure proposed by the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the local three-dimensional structure;

[0023] Figure 5 The three-dimensional structural diagram of the housing, balls, gear disc and connecting rod part proposed by the utility model.

[0024] In the figure: 1. housing; 11. sealing plate; 12. oil pipe; 2. servo motor; 21. hollow shaft; 22. driving gear 1; 23. driving gear 2; 3. toothed disc; 301. ball bearing; 31. connecting rod; 32. driving shaft; 4. mounting ring; 41. rotating shaft; 42. driving gear 1; 43. supporting ring; 44. driving gear 2; 5. sliding plate; 51. electric cylinder; 52. guide rod. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0026] Reference Figure 1-5A planetary gear reducer for a servo structure includes a housing 1, a servo motor 2, a hollow shaft 21, a driving gear 1 22, a driving gear 2 23, a toothed disc 3 and a driving shaft 32. One side of the housing 1 is open, a sealing plate 11 is fixedly installed on the inner wall of the housing 1, the hollow shaft 21 is rotatably installed in the housing 1 and is located on the central axis of the housing 1, the servo motor 2 is fixedly installed on the sealing plate 11, and the output shaft section of the servo motor 2 is polygonal and axially slidably connected to the hollow shaft 21, the driving gear 1 22 and the driving gear 2 23 are fixedly installed. The electric cylinder 51 is sleeved on the hollow shaft 21, and the sealing plate 11 is fixedly installed with the electric cylinder 51. The sliding plate 5 is slidably installed on the inner wall of the housing 1. The sliding plate 5 is located between the mounting ring 4 and the sealing plate 11. The working end of the electric cylinder 51 is fixedly installed on the sliding plate 5. The positions of the driving gear 1 22 and the driving gear 2 23 can be adjusted by the sliding plate 5 as needed, so as to facilitate the control of the meshing state between the driving gear 1 22 and the transmission gear 1 42 and the driving gear 2 23 and the transmission gear 2 44, so as to realize the servo motor 2 under the condition that the power and speed remain unchanged. Different deceleration effects are achieved, the toothed disc 3 is rotatably mounted in the housing 1, the driving shaft 32 is rotatably mounted on the side of the housing 1 away from the opening, and one end of the driving shaft 32 extends into the housing 1 and is connected to the toothed disc 3, a mounting ring 4 is fixedly mounted on the inner wall of the housing 1, a plurality of rotating shafts 41 are rotatably mounted on the mounting ring 4, the plurality of rotating shafts 41 are arranged based on the hollow shaft 21 as the center, a transmission gear 42 is fixedly sleeved on the plurality of rotating shafts 41, a same support ring 43 is rotatably mounted on one end of the plurality of rotating shafts 41 away from the mounting ring 4, a plurality of rotating shafts 41 are rotatably mounted on the support ring 43 A transmission gear 2 44, multiple transmission gears 1 42 and multiple transmission gears 2 44 are all meshed with the toothed disc 3, the diameter of the driving gear 22 is smaller than the diameter of the driving gear 2 23, and the diameter of the transmission gear 1 42 is larger than the diameter of the transmission gear 2 44, which can provide effective support for the transmission gear 1 42 and the transmission gear 2 44, so that the transmission gear 1 42 and the transmission gear 2 44 can maintain stable rotation, and the multiple transmission gears 1 42 are all adapted to the driving gear 1 42, and the multiple transmission gears 2 44 are all meshed with the driving gear 2 44.

[0027] In this embodiment, a plurality of guide rods 52 are fixedly mounted on the sealing plate 11 and the mounting ring 4, a plurality of guide holes are opened on the sliding plate 5, and the plurality of guide rods 52 respectively penetrate the corresponding guide holes, and the number of the guide holes is greater than the guide rods 52, which can provide guidance for the sliding plate 5 and ensure the normal passage of the lubricating oil.

[0028] In this embodiment, a connecting rod 31 is fixedly mounted on the inner wall of the toothed disc 3, and a driving shaft 32 is radially fixedly mounted on the connecting rod 31 and coaxially arranged with the toothed disc 3, so as to ensure that the driving shaft 32 can be controlled to rotate when the toothed disc 3 rotates.

[0029] In this embodiment, an oil pipe 12 is fixedly mounted on the sealing plate 11 , and a control valve is fixedly mounted on the oil pipe 12 , so as to facilitate the filling of lubricating oil into the housing 1 or the discharge of lubricating oil in the housing 1 out of the housing 1 .

[0030] In this embodiment, a plurality of balls 301 are rollingly mounted on the inner wall of the housing 1 , and the plurality of balls 301 are in contact with the outer peripheral surface of the gear plate 3 , thereby providing effective support for the gear plate 3 .

[0031] The circuits, electronic components and modules involved all adopt existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software, circuits and methods.

[0032] Working principle: When in use, first turn on the power, set the power and speed of the servo motor 2 according to the demand and keep them constant, then start the servo motor 2, the output shaft of the servo motor 2 drives the hollow shaft 21 to rotate, the hollow shaft 21 drives the driving gear 1 22 and the driving gear 2 23 to rotate, the driving gear 2 23 rotates through the transmission gear 2 44 toothed disc 3, so that the driving shaft 32 can be controlled to rotate under the cooperation of the connecting rod 31 and achieve a deceleration effect;

[0033] When the deceleration effect needs to be adjusted, the electric cylinder 51 is started, and the working end of the electric cylinder 51 drives the sliding plate 5 to move to the left, so that the sliding plate 5 drives the hollow shaft 21 to make the driving gear 1 22 and the driving gear 2 23 move to the left synchronously, thereby controlling the driving gear 1 22 and the transmission gear 1 42 to enter a meshing state, and at the same time, the driving gear 2 23 and the transmission gear 2 44 are disengaged, so that different deceleration effects can be achieved when the power and speed of the servo motor 2 remain unchanged. At the same time, lubricating oil is added to the housing 1 through the oil pipe 12. The lubricating oil can reduce the friction between the gear plate 3, the driving gear 1 22, the driving gear 2 23, the transmission gear 1 42 and the transmission gear 2 44, thereby improving the service life and stability of the reducer.

[0034] The above is a detailed introduction to a planetary gear reducer for a servo structure provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A planetary gear reducer for a servo structure, characterized in that: It comprises a housing (1), a servo motor (2), a hollow shaft (21), a driving gear 1 (22), a driving gear 2 (23), a toothed disc (3), a driving shaft (32), an adjustment component and a support component; One side of the shell (1) is open, a sealing plate (11) is fixedly mounted on the inner wall of the shell (1), the hollow shaft (21) is rotatably mounted in the shell (1) and is located on the central axis of the shell (1), the servo motor (2) is fixedly mounted on the sealing plate (11), and the output shaft section of the servo motor (2) is polygonal and axially slidably connected to the hollow shaft (21), the driving gear 1 (22) and the driving gear 2 (23) are both fixedly sleeved on the hollow shaft (21), and the adjustment component is arranged in the shell (1) and is connected to the sealing plate (11) and the hollow shaft. The supporting assembly is arranged in the housing (1), the toothed disc (3) is rotatably mounted in the housing (1), a plurality of transmission gears (42) and a plurality of transmission gears (44) are arranged on the supporting assembly, the plurality of transmission gears (42) and a plurality of transmission gears (44) are all meshed with the toothed disc (3) and are respectively matched with the driving gears (22) and the driving gears (23), the driving shaft (32) is rotatably mounted on a side of the housing (1) away from the opening, and one end of the driving shaft (32) extends into the housing (1) and is connected to the toothed disc (3).

2. The planetary gear reducer for a servo structure according to claim 1, characterized in that: The support assembly comprises a mounting ring (4), a plurality of rotating shafts (41) and a support ring (43); the mounting ring (4) is fixedly mounted on the inner wall of the housing (1); the plurality of rotating shafts (41) are rotatably mounted on the mounting ring (4); the plurality of rotating shafts (41) are arranged with the hollow shaft (21) as the center; a plurality of transmission gears (42) are respectively fixedly sleeved on corresponding rotating shafts (41); a plurality of rotating shafts (41) are rotatably mounted on one end away from the mounting ring (4) and the same support ring (43); and a plurality of transmission gears (44) are rotatably mounted on the support ring (43).

3. The planetary gear reducer for a servo structure according to claim 2, characterized in that: The adjustment assembly comprises an electric cylinder (51) and a sliding plate (5); the electric cylinder (51) is fixedly mounted on the sealing plate (11); the sliding plate (5) is slidably mounted on the inner wall of the housing (1); the sliding plate (5) is located between the mounting ring (4) and the sealing plate (11); and the working end of the electric cylinder (51) is fixedly mounted on the sliding plate (5).

4. The planetary gear reducer for a servo structure according to claim 3, characterized in that: A plurality of guide rods (52) are fixedly mounted on the sealing plate (11) and the mounting ring (4), a plurality of guide holes are opened on the sliding plate (5), and the plurality of guide rods (52) respectively penetrate the corresponding guide holes, and the number of the guide holes is greater than the number of the guide rods (52).

5. The planetary gear reducer for a servo structure according to claim 1, characterized in that: A connecting rod (31) is fixedly mounted on the inner wall of the toothed disc (3), and a driving shaft (32) is radially fixedly mounted on the connecting rod (31) and is coaxially arranged with the toothed disc (3).

6. The planetary gear reducer for a servo structure according to claim 1, characterized in that: An oil pipe (12) is fixedly mounted on the sealing plate (11), and a control valve is fixedly mounted on the oil pipe (12).

7. The planetary gear reducer for a servo structure according to claim 1, characterized in that: A plurality of balls (301) are rollingly mounted on the inner wall of the housing (1), and the plurality of balls (301) are in contact with the outer peripheral surface of the toothed disc (3).

8. The planetary gear reducer for a servo structure according to claim 1, characterized in that: The diameter of the driving gear 1 (22) is smaller than the diameter of the driving gear 2 (23), and the diameter of the transmission gear 1 (42) is larger than the diameter of the transmission gear 2 (44).

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