A flange shaft connection structure for a planetary gear reducer

Abstract

This utility model relates to the field of mechanical transmission technology, specifically a flange shaft connection structure for a planetary reducer. It includes a drive motor and a reducer body. A flange sleeve one is fitted onto the outer surface of the drive motor. An output shaft is rotatably mounted on the end of the drive motor near the flange sleeve one. A threaded connecting ring is fixedly connected to the outer surface of the flange sleeve one. A flange sleeve two is fitted onto the outer surface of the reducer body. An annular threaded groove is formed on the outer side wall of the flange sleeve two. A connecting groove adapted to the output shaft is formed on the end of the reducer body near the flange sleeve two. A connecting component is fixedly connected within the mounting groove, and a sliding groove is formed within the mounting groove. The advantages are: the cooperation of the threaded connecting ring and the annular threaded groove achieves a quick initial connection between the drive motor and the reducer body; simultaneously, the cooperation of the fixing block and fixing groove in the connecting component further enhances the connection stability, and the installation and disassembly process is simple and quick.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, specifically to a flange shaft connection structure for a planetary reducer. Background Technology

[0002] Planetary gear reducers are power transmission devices that achieve speed reduction and torque increase through planetary gear sets (sun gear, planetary gears, and internal gear ring). They feature high precision, high rigidity, and high load capacity. Their core advantages lie in high torque density, low backlash, and compact structure, making them the preferred solution in the field of precision transmission. They are widely used in precision transmission systems such as servo motors and stepper motors.

[0003] The working principle of a planetary gear reducer: The motor input shaft drives the flange shaft to rotate via a key connection. The flange shaft transmits power to the sun gear of the planetary gear reducer. The planetary gear set (sun gear, planetary gears, and internal gear ring) achieves speed reduction and torque increase through gear meshing.

[0004] Traditionally, planetary gear reducers and drive motors are connected by flanges, which are then fastened with bolts. This process requires removing and installing a large number of bolts, making it cumbersome and resulting in low efficiency in connecting and installing planetary gear reducers and drive motors. Utility Model Content

[0005] The purpose of this utility model is to provide a flange shaft connection structure for a planetary reducer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a planetary reducer flange shaft connection structure, including a drive motor and a reducer body. A flange sleeve one is fitted on the outer surface of the drive motor. An output shaft is rotatably mounted on one end of the drive motor near the flange sleeve one. A threaded connecting ring is fixedly connected to the outer surface of the flange sleeve one. A flange sleeve two is fitted on the outer surface of the reducer body. An annular threaded groove is opened on the outer side wall of the flange sleeve two. A connecting groove adapted to the output shaft is opened on one end of the reducer body near the flange sleeve two. A connecting component is fixedly connected in the mounting groove.

[0007] Preferably, the mounting groove is provided with a sliding groove, the outer surface of the flange sleeve one is provided with a mounting groove, the outer side wall of the flange sleeve one is provided with several through grooves, and the outer side wall of the flange sleeve two is provided with several fixing grooves.

[0008] Preferably, the connecting assembly includes a mounting base fixedly connected in the mounting groove, a mounting sleeve fixedly connected to the outer wall of the mounting base, a movable block slidably connected inside the mounting sleeve, and an annular mounting groove provided on the side of the movable block near the mounting sleeve.

[0009] Preferably, a return spring is inserted into the inner wall of the annular mounting groove one, and an annular mounting groove two is opened on the side of the mounting base near the mounting sleeve, with the end of the return spring away from the annular mounting groove one inserted into the inner wall of the annular mounting groove two.

[0010] Preferably, a limiting groove is formed through the upper surface of the mounting sleeve, and a connecting rod is slidably connected to the inner wall of the limiting groove. One end of the connecting rod is fixedly connected to the outer surface of the movable block, and a pulling rod is fixedly connected to the end of the connecting rod away from the movable block. Several anti-slip protrusions are fixedly connected to the outer surface of the pulling rod.

[0011] Preferably, a movable rod is fixedly connected to the side of the movable block away from the return spring, and a fixed block adapted to the fixed slot is fixedly connected to the end of the movable rod away from the movable block. A slider is fixedly connected to the outer surface of the movable rod, and the outer wall of the slider is slidably connected to the inner wall of the groove.

[0012] Preferably, the outer surface of the mounting sleeve has two limiting grooves, which are symmetrically distributed, and the inner wall of the limiting groove is slidably connected to the outer wall of the slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the cooperation of the threaded connecting ring and the annular threaded groove realizes the quick initial connection between the drive motor and the reducer body. At the same time, the cooperation of the fixing block and fixing slot in the connecting assembly further enhances the connection stability, and the installation and disassembly process is simple and quick.

[0014] This utility model proposes a flange shaft connection structure for a planetary gear reducer. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the reducer of this utility model; Figure 3 This is a schematic diagram of the drive motor structure of this utility model; Figure 4 This is a schematic diagram of the connecting component structure of this utility model; Figure 5 This is a schematic diagram of the reset spring structure of this utility model; Figure 6 This is a schematic diagram of the annular mounting groove of this utility model.

[0015] In the diagram: 1. Drive motor; 2. Flange sleeve one; 3. Flange sleeve two; 4. Reducer body; 5. Annular threaded groove; 6. Connecting groove; 7. Threaded connecting ring; 8. Connecting assembly; 81. Mounting base; 82. Mounting sleeve; 83. Limiting slide groove one; 84. Return spring; 85. Movable block; 86. Limiting slide groove two; 87. Fixed block; 88. Annular mounting groove one; 89. Slider; 810. Movable rod; 811. Pulling rod; 812. Connecting rod; 813. Annular mounting groove two; 9. Slide groove; 10. Through groove; 11. Output shaft; 12. Fixed slot. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figures 1-6 The present invention provides the following two preferred embodiments: Example 1: A planetary reducer flange shaft connection structure includes a drive motor 1 and a reducer body 4. A flange sleeve 2 is fitted on the outer surface of the drive motor 1. An output shaft 11 is rotatably mounted on the end of the drive motor 1 near the flange sleeve 2. A threaded connecting ring 7 is fixedly connected to the outer surface of the flange sleeve 2. A flange sleeve 3 is fitted on the outer surface of the reducer body 4. An annular threaded groove 5 is opened on the outer side wall of the flange sleeve 3. A connecting groove 6 adapted to the output shaft 11 is opened on the end of the reducer body 4 near the flange sleeve 3. A connecting component 8 is fixedly connected in the mounting groove to further strengthen the connection between the drive motor 1 and the reducer body 4.

[0018] The mounting groove has a sliding groove 9, which moves with the auxiliary movable rod 810. The outer surface of the flange sleeve 1 2 has a mounting groove. The outer side wall of the flange sleeve 1 2 has several through grooves 10. The outer side wall of the flange sleeve 2 3 has several fixing grooves 12.

[0019] In use, the operator first inserts the output shaft 11 of the drive motor 1 into the connecting groove 6 of the reducer body 4, and at the same time aligns the flange sleeve 1 2 with the flange sleeve 2 3. Then, the operator rotates the reducer body 4 and the flange sleeve 2 3, and screws the threaded connecting ring 7 on the flange sleeve 1 2 into the annular thread groove 5 of the flange sleeve 2 3. This will initially connect the flange sleeve 1 2 and the flange sleeve 2 3, completing the initial connection and fixation of the drive motor 1 and the reducer body 4.

[0020] Example 2: The connecting component 8 includes a mounting base 81 fixedly connected in the mounting groove. A mounting sleeve 82 is fixedly connected to the outer wall of the mounting base 81. A movable block 85 is slidably connected inside the mounting sleeve 82. An annular mounting groove 88 is formed on the side of the movable block 85 near the mounting sleeve 82. A return spring 84 is inserted into the inner wall of the annular mounting groove 88. An annular mounting groove 813 is formed on the side of the mounting base 81 near the mounting sleeve 82. The end of the return spring 84 away from the annular mounting groove 88 is inserted into the inner wall of the annular mounting groove 813.

[0021] A limiting groove 83 is provided through the upper surface of the mounting sleeve 82 to limit the travel of the movable rod 810. A connecting rod 812 is slidably connected to the inner wall of the limiting groove 83. One end of the connecting rod 812 is fixedly connected to the outer surface of the movable block 85. A pulling rod 811 is fixedly connected to the end of the connecting rod 812 away from the movable block 85. Several anti-slip protrusions are fixedly connected to the outer surface of the pulling rod 811 to facilitate the operator to pull.

[0022] A movable rod 810 is fixedly connected to the side of the movable block 85 away from the return spring 84. A fixed block 87 that matches the fixed slot 12 is fixedly connected to the end of the movable rod 810 away from the movable block 85. A slider 89 is fixedly connected to the outer surface of the movable rod 810. The outer wall of the slider 89 is slidably connected to the inner wall of the slide groove 9 to ensure the stable movement of the movable rod 810. Two limiting slide grooves 86 are opened on the outer surface of the mounting sleeve 82. The two limiting slide grooves 86 are symmetrically distributed. The inner wall of the limiting slide groove 86 is slidably connected to the outer wall of the slider 89 to further restrict the movement direction of the movable rod 810.

[0023] During use, as the threaded connecting ring 7 is screwed into the annular threaded groove 5, the outer wall of the flange sleeve 2 3 presses against the fixing block 87. After being pressed, the fixing block 87 pushes the movable rod 810 to move axially along the limiting slide groove 2 86, thereby pushing the movable block 85 to compress the return spring 84. When the threaded connecting ring 7 is fully screwed into the annular threaded groove 5, the fixing block 87 aligns with the fixing groove 12 on the flange sleeve 2 3. At this time, the return spring 84 rebounds and pushes the fixing block 87 into the fixing groove 12, further strengthening the connection between the drive motor 1 and the reducer body 4. When it is necessary to separate the drive motor 1 and the reducer body 4, the pulling rod 811 is pulled. The pulling rod 811 drives the movable block 85 to move through the connecting rod 812, thereby causing the fixing block 87 to disengage from the fixing groove 12. The reducer body 4 and the flange sleeve 2 3 are rotated in the opposite direction, and the threaded connecting ring 7 is screwed out of the annular threaded groove 5, thus separating the drive motor 1 and the reducer body 4.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange shaft connection structure of a planetary reduction gear, characterized by: The device includes a drive motor (1) and a reducer body (4). The outer surface of the drive motor (1) is fitted with a flange sleeve (2). An output shaft (11) is rotatably mounted on one end of the drive motor (1) near the flange sleeve (2). A threaded connecting ring (7) is fixedly connected to the outer surface of the flange sleeve (2). A flange sleeve (3) is fitted on the outer surface of the reducer body (4). An annular thread groove (5) is opened on the outer side wall of the flange sleeve (3). A connecting groove (6) adapted to the output shaft (11) is opened on one end of the reducer body (4) near the flange sleeve (3). A connecting component (8) is fixedly connected in the mounting groove.

2. The flange shaft connection structure of a planetary speed reducer according to claim 1, characterized in that: The mounting groove is provided with a sliding groove (9), the outer surface of the flange sleeve one (2) is provided with a mounting groove, the outer side wall of the flange sleeve one (2) is provided with several through grooves (10), and the outer side wall of the flange sleeve two (3) is provided with several fixing grooves (12).

3. The flange shaft connection structure of a planetary speed reducer according to claim 1, characterized in that: The connecting component (8) includes a mounting base (81) fixedly connected in the mounting groove. An mounting sleeve (82) is fixedly connected to the outer wall of the mounting base (81). A movable block (85) is slidably connected inside the mounting sleeve (82). An annular mounting groove (88) is provided on the side of the movable block (85) near the mounting sleeve (82).

4. The flange shaft connection structure of a planetary speed reducer according to claim 3, characterized in that: A reset spring (84) is inserted into the inner wall of the first annular mounting groove (88). The second annular mounting groove (813) is opened on the side of the mounting base (81) near the mounting sleeve (82). The end of the reset spring (84) away from the first annular mounting groove (88) is inserted into the inner wall of the second annular mounting groove (813).

5. The flange shaft connection structure of a planetary speed reducer according to claim 3, characterized in that: The upper surface of the mounting sleeve (82) is provided with a limiting groove (83). A connecting rod (812) is slidably connected to the inner wall of the limiting groove (83). One end of the connecting rod (812) is fixedly connected to the outer surface of the movable block (85). A pulling rod (811) is fixedly connected to the end of the connecting rod (812) away from the movable block (85). Several anti-slip protrusions are fixedly connected to the outer surface of the pulling rod (811).

6. The flange shaft connection structure of a planetary speed reducer according to claim 5, characterized in that: A movable rod (810) is fixedly connected to the side of the movable block (85) away from the return spring (84). A fixed block (87) adapted to the fixed slot (12) is fixedly connected to the end of the movable rod (810) away from the movable block (85). A slider (89) is fixedly connected to the outer surface of the movable rod (810). The outer wall of the slider (89) is slidably connected to the inner wall of the groove (9).

7. The flange shaft connection structure of a planetary speed reducer according to claim 5, characterized in that: The outer surface of the mounting sleeve (82) has two limiting slide grooves (86), which are symmetrically distributed. The inner wall of the limiting slide groove (86) is slidably connected to the outer wall of the slider (89).

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