An adjustable output direction speed reducer

Abstract

This technical solution belongs to the field of speed reducer technology, specifically relating to a speed reducer with adjustable output direction. It includes a speed reducer main unit with an input main shaft and at least two output drive devices, each including a transmission mechanism and an output mechanism. The transmission mechanism includes a drive shaft and a first bevel gear. The drive shaft is rotatably mounted relative to the speed reducer main unit. The input main shaft drives the drive shaft to rotate, which in turn drives the first bevel gear to rotate. The output mechanism includes an output seat, an output shaft, and a second bevel gear. The output shaft rotates relative to the output seat, and its rotation axis is perpendicular to that of the drive shaft. The output seat has a first meshing area and a second meshing area at a relative position to the rotation axis of the output shaft. The first bevel gear meshes with the second bevel gear. When the second bevel gear is in the first meshing area, the first bevel gear drives the second bevel gear to rotate, causing the output shaft to rotate in a first direction. When switching to the second meshing area, the output shaft rotates in a second direction opposite to the first direction.

Description

Technical Field

[0001] This technical solution relates to the field of speed reducer technology, specifically a speed reducer with adjustable output direction. Background Technology

[0002] A speed reducer is a power transmission device that typically uses gear sets to convert speed ratios, transforming the high-speed rotation of a power source such as a motor or engine into a low-speed, high-torque output required by the actuator.

[0003] For example, Chinese patent CN204096569U discloses an automatic feeding device, including a base on which a motor and a reducer are mounted. The output end of the reducer is provided with a pressure roller assembly, which includes a clamping pressure roller and a crossing device. A large gear is provided on the output shaft of the reducer, and a small gear is provided on the clamping pressure roller. The large gear and the small gear mesh to realize the transmission of power. The round steel is clamped by the clamping pressure roller. When the motor works, it drives the reducer and drives the clamping pressure roller to rotate, thereby driving the round steel to move and realize feeding.

[0004] The reducers in the aforementioned automatic feeding devices are basically single-drive power transmissions, which limits the application scenarios of the power unit. In actual use, this method is used for single-point clamping and conveying. If it is necessary to drive two actuators that need to be independently controlled in direction (such as forward and reverse or different axes), it is usually necessary to configure a separate reducer power unit for each actuator. This increases the complexity of the equipment to achieve mechanical reversal, and has poor adaptability and scalability to different application scenarios, thus limiting its use. Summary of the Invention

[0005] To address the limitation of application caused by the difficulty in achieving independent control of multiple actuators under a single reducer drive mode, this technical solution provides a reducer with adjustable output direction.

[0006] The purpose of this technical solution is achieved as follows:

[0007] An adjustable output direction speed reducer, comprising:

[0008] The reducer main unit has an input spindle that is used to connect to a power source;

[0009] At least two output drive devices are provided, each of which is located on the main reducer. Each output drive device includes a transmission mechanism and an output mechanism. The transmission mechanism includes a drive shaft and a first bevel gear coaxially fixed to the drive shaft. The drive shaft is rotatably arranged relative to the main reducer. The input spindle drives the drive shaft to rotate, and the drive shaft drives the first bevel gear to rotate.

[0010] Each output mechanism includes an output base, an output shaft disposed on the output base, and a second bevel gear coaxially fixed on the output shaft. The output shaft is rotatably disposed relative to the output base, and the output shaft is perpendicular to the rotation axis of the drive shaft.

[0011] The output base has a first meshing area and a second meshing area at a relative position along the rotation axis of the corresponding output shaft. The first bevel gear meshes with the second bevel gear. When the second bevel gear is in the first meshing area, the first bevel gear drives the second bevel gear to rotate, causing the output shaft to rotate in the first direction. When the second bevel gear switches to the second meshing area, the output shaft rotates in the second direction opposite to the first direction.

[0012] Through the above technical solution, in normal use, a power source drives the input main shaft to rotate. The input main shaft transmits power to each drive shaft perpendicular to its axis through a transmission assembly, realizing power input and transmission. Each drive shaft drives the first bevel gear fixed coaxially with it to rotate synchronously for the first stage of transmission. The second bevel gear is detachably installed in the output seat, which has two different meshing areas (i.e., the first meshing area and the second meshing area). In the first meshing area, the second bevel gear always meshes with the first bevel gear on the first side tooth surface, correspondingly driving the output shaft to rotate in the first direction (e.g., clockwise). In the second meshing area, it always meshes with the first bevel gear on the opposite second side tooth surface, correspondingly driving the output shaft to rotate in the second direction (e.g., counterclockwise). The direction is reversed by changing the meshing position of the tooth surfaces. This design realizes independent and convenient control of the rotation direction of multiple output shafts under a single power source input, optimizing the limitations of traditional single reducers in achieving independent drive and direction adjustment of multiple actuators. It makes it suitable for more application scenarios that require independent control of actuators with different rotation directions, improving practicality and flexibility.

[0013] Preferably, the output base is rotatable relative to the main reducer to adjust the angle of the output shaft.

[0014] Through the above technical solution, the output base can be rotated and adjusted on the reducer host, realizing independent and flexible adjustment of the output shaft output angle, enhancing the adaptability to complex spatial layout, and meeting the working direction requirements of different actuators without changing the overall structure.

[0015] Preferably, the output seat is provided with fasteners, and the output seat is fixed to the reducer host by the fasteners.

[0016] The above technical solution allows for adjustment of the output shaft angle by loosening the fasteners, rotating the output seat to the desired angle, and then re-locking it.

[0017] Preferably, the output seat has a protruding connecting ring, the connecting ring has a plurality of connecting holes I along the circumference, and the reducer main body has a plurality of connecting holes II, the plurality of connecting holes II being configured in a one-to-one correspondence with the plurality of connecting holes I;

[0018] The output seat can be rotated and adjusted relative to the reducer host, and each of the second connection holes can be aligned with a different first connection hole, so that each first connection hole can be fitted with a fastener, and the fastener is connected to the corresponding second connection hole.

[0019] With the above technical solution, the output seat is rotated during adjustment. Based on the alignment of connection hole one and connection hole two, different connection holes one are aligned with the corresponding connection holes two on the reducer host. Each fastener passes through the aligned holes one and two to connect and lock the output seat, thereby synchronously adjusting the output shaft angle to the preset direction. The discrete hole position design achieves precise and stable positioning of the output shaft angle, enhancing the reliability of adjustment. The multi-hole layout provides flexible angle selection, thereby improving spatial adaptability.

[0020] Preferably, the main body of the reducer has a protruding mounting boss, the mounting boss has a second connecting hole, the mounting boss has a positioning protrusion, and the connecting ring has a positioning ring groove near the mounting boss for the positioning protrusion to be inserted.

[0021] Through the above technical solution, the positioning protrusion and the positioning ring groove are fitted together to achieve pre-positioning during installation and rotation guidance during subsequent adjustment, ensuring quick and accurate alignment of connection holes one and two, and improving adjustment efficiency; after locking, they work together to share shear force, enhancing the stability and torsional reliability of the output seat.

[0022] Preferably, the output socket includes:

[0023] The mounting part has a first chamber, the first chamber including a first meshing area and a second meshing area, and the output shaft and the second bevel gear are mounted in the first chamber;

[0024] A connecting portion is disposed in the mounting portion, the connecting portion having a corresponding second chamber, the second chamber communicating with the side of the first chamber, the drive shaft extending into the second chamber, and the extended end of the drive shaft being provided with the first bevel gear.

[0025] Through the above technical solution, the drive shaft extends to the second chamber, and the first bevel gear at its extended end extends into the first chamber and meshes with the second bevel gear. Power is transmitted to the second bevel gear through the drive shaft, thus realizing power transmission.

[0026] Preferably, the mounting part has mounting openings at both ends along the rotation direction of the output shaft, the mounting openings are connected to the first chamber to the outside, and the mounting openings are fitted with fixed inner covers, the fixed inner covers having through holes for the output shaft to pass through;

[0027] The mounting port is also provided with a mounting ring groove on the inner peripheral wall near the first chamber. The mounting ring groove has an abutment surface on one end face opposite to the mounting port. The mounting ring groove has a snap-fit ​​ring groove along the inner peripheral wall. A snap-fit ​​spring is embedded in the snap-fit ​​ring groove. One side of the fixed inner cover abuts against the corresponding abutment surface for positioning, and the other side abuts against the snap-fit ​​spring to prevent it from detaching from the mounting port.

[0028] Through the above technical solution, one side of the fixed inner cover is axially positioned against the abutting surface of the mounting ring groove, while the other side is pressed and limited by the snap ring spring embedded in the snap ring groove. The abutting surface and the snap ring spring form a bidirectional rigid constraint, ensuring that the fixed inner cover is vibration-resistant and prevents it from falling off, and maintaining the sealing of the first chamber. During disassembly and assembly, the fixed inner cover can be removed by taking out the snap ring, opening the mounting port, so that the output shaft and the second bevel gear can be directly installed into or removed from the first chamber through the mounting port. This allows the second bevel gear to change its position between the first meshing area and the second meshing area, improving operational convenience and maintenance efficiency.

[0029] Preferably, at least one first bearing component is installed in the second cavity, and the first bearing component is fitted on the outside of the drive shaft for guiding rotation.

[0030] Through the above technical solution, synchronous rotation is achieved by the interference fit between the inner ring of the first bearing and the drive shaft, and the outer ring is fixed by the static fit between the second chamber, forming a rotational guide support structure for the drive shaft. Rolling friction replaces sliding friction, reducing rotational runout and ensuring the stability of power transmission and transmission efficiency.

[0031] Preferably, both the first bevel gear and the second bevel gear are fitted with a second bearing component.

[0032] By using the above technical solution, the rolling bearing of the second bearing component replaces the gear shaft in direct contact with the cavity wall, converting sliding friction into rolling friction and reducing the energy loss of meshing transmission.

[0033] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0034] 1. This technical solution sets a first meshing area and a second meshing area on the output seat. The double meshing area allows the second bevel gear to mesh with different tooth surfaces of the first bevel gear, adjusting the forward / reverse rotation of the drive output shaft. This enables independent control of the rotation direction of multiple output shafts under a single power source input, improving the applicability of independent drive of multiple actuators. It is suitable for more application scenarios that require independent control of actuators with different rotation directions, improving practicality and flexibility.

[0035] 2. This technical solution adjusts the angle and direction of the output shaft by rotating the output base relative to the reducer host, thereby enhancing its adaptability to complex spatial layouts and meeting the operational direction requirements of different actuators without changing the overall structure. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0037] Figure 2 This is a schematic diagram of another operating state of this embodiment;

[0038] Figure 3 This is a partial explosion diagram of this embodiment;

[0039] Figure 4 This embodiment Figure 3 Another perspective illustration;

[0040] Figure 5 This is a partial exploded view of the output mechanism in the embodiment;

[0041] Figure 6 This is a schematic diagram of the structural fit between the first bevel gear and the second bevel gear in the embodiment;

[0042] Figure 7 This is a partial cross-sectional view of this embodiment;

[0043] Figure 8 This embodiment Figure 7 One of the partial cross-sectional schematic diagrams of another mating configuration;

[0044] Figure 9 This embodiment Figure 7 Another partial cross-sectional schematic diagram of the mating state;

[0045] Figure 10 This is a partial cross-sectional view of the output mechanism in the embodiment.

[0046] Reference numerals: 1. Reducer main unit; 2. Input spindle; 3. Transmission mechanism; 31. Drive shaft; 32. First bevel gear; 4. Output mechanism; 41. Output seat; 411. Mounting part; 412. Connecting part; 42. Output shaft; 43. Second bevel gear; 51. First meshing area; 52. Second meshing area; 6. Fastener; 7. Connecting ring; 8. Connecting hole one; 9. Connecting hole two; 10. Mounting boss; 11. Positioning protrusion; 12. Positioning ring groove; 13. First chamber; 14. Second chamber; 15. First bearing component; 16. Mounting port; 17. Fixed inner cover; 18. Through hole; 19. Mounting ring groove; 20. Abutment surface; 21. Snap-fit ​​ring groove; 22. Snap ring; 23. Second bearing component. Detailed Implementation

[0047] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0048] Example:

[0049] See Figure 1 An adjustable output direction reducer includes a reducer main unit 1, which is rectangular in shape. The reducer main unit 1 is prior art; for example, Chinese Patent CN112276643A discloses a material conveying mechanism and a feeding system, wherein the drive device is equipped with a worm gear structure. The reducer main unit in this application can also adopt an existing reducer structure, which will not be described in detail here. The reducer main unit 1 is provided with an input spindle 2, which passes through the reducer main unit 1 and is rotatably mounted on the reducer main unit 1. The rotation axis of the input spindle 2 is arranged in the horizontal direction. The two ends of the input spindle 2 extend out of the reducer host 1 in the front and rear directions respectively, so as to allow the power source (such as a motor) to be connected. The motor drives the input spindle 2 to rotate through the transmission structure. The reducer host 1 is provided with output drive devices, at least two of which are provided. Each output drive device includes a transmission mechanism 3 and an output mechanism 4. In this embodiment, two output mechanisms 4 are shown installed on opposite sides of the reducer host 1 along the rotation axis of the input spindle 2. The number of output mechanisms 4 can also be increased according to actual needs. As a motor unit, the output mechanism 4 can drive the actuator to work.

[0050] See Figure 3 , Figure 4 and Figure 5 Each output mechanism 4 includes an output seat 41, an output shaft 42, and a second bevel gear 43. The output seat 41 includes a mounting part 411 and a connecting part 412. One end of the connecting part 412 is integrally connected to the mounting part 411, and the other end can be connected to the reducer host 1. The connection point of the two is close to the midpoint of the mounting part 411, so that the overall shape of the output seat 41 is T-shaped. The reducer host 1 is provided with the same number of mounting bosses 10 as the output seats 41. The two mounting bosses 10 are arranged one-to-one with the output seats 41 on both sides. The mounting bosses 10 are provided with a number of connecting holes 9. In this embodiment, the number of connecting holes 9 are shown to be equidistantly opened along the circumference. Each mounting boss 10 has a positioning protrusion 11 protruding from it. It is located on the side end face of the mounting boss 10 away from the reducer host 1. The number of connecting holes 9 are distributed on the outer periphery of the mounting bosses 10.

[0051] The connecting part 412 has a protruding connecting ring 7, which is located on the outer side of the end of the connecting part 412 away from the mounting part 411. The size of the connecting ring 7 is adapted to the mounting boss 10. The connecting ring 7 has a positioning ring groove 12 for the positioning protrusion 11 to be inserted near the mounting boss 10. The connecting ring 7 has a plurality of connecting holes 1 8, which are respectively set with a plurality of connecting holes 2 9. The output seat 41 is provided with fasteners 6, which are preferably fastening bolts. After the positioning ring groove 12 is aligned with the corresponding positioning protrusion 11 and fitted, the connecting part 412 abuts against the mounting boss 10 through the connecting ring 7. The plurality of fasteners 6 pass through the connecting holes 1 8 and are screwed into the connecting holes 2 9 for threaded connection, thereby realizing the fixed connection between the output seat 41 and the reducer host 1.

[0052] The output seat 41 rotates relative to the reducer host 1 for adjustment. Each connecting hole 2 9 can be aligned with a different connecting hole 1 8, thereby achieving indexing adjustment. For example, when there are two connecting holes 1 8 and two connecting holes 2 9, the output seat 41 can be adjusted in 180-degree increments. When there are three connecting holes 1 8 and 2 9, the output seat 41 can be adjusted in 60-degree increments. Theoretically, by increasing the number of connecting holes 1 8 and two connecting holes 2 9 in sequence, the adjustment increments can be further reduced and the adjustable angle range can be expanded. Alternatively, other forms of rotational locking structures can be set between the output seat 41 and the reducer host 1. The locking structure switches between unlocked and locked states. Continuous rotation is achieved in the unlocked state, and the position is fixed in the locked state, thus achieving stepless adjustment of the output seat 41.

[0053] The mounting part 411 has a first chamber 13, and the connecting part 412 has a corresponding second chamber 14. The second chamber 14 is connected to the side of the first chamber 13. The output shaft 42 and the second bevel gear 43 are both installed in the first chamber 13. The output shaft 42 is rotatably mounted on the connecting part 412. The second bevel gear 43 is sleeved on the output shaft 42 and is coaxially fixed with the output shaft 42. The mounting part 411 has mounting ports 16 at both ends along the rotation direction of the output shaft 42. The mounting ports 16 are connected to the first chamber 13 to the outside. The output shaft 42 and the second bevel gear 43 can both enter the first chamber 13 through the mounting ports 16. The second bevel gear 43 is sleeved with a second bearing member 23. Its outer ring abuts and is fixed to the cavity wall of the first chamber 13, and its inner ring supports and guides the rotation of the second bevel gear 43.

[0054] Each mounting port 16 is provided with a fixed inner cover 17. A mounting ring groove 19 is formed along the inner peripheral wall of the mounting port 16 near the first chamber 13. The size of the groove is adapted to the fixed inner cover 17. The edge of the fixed inner cover 17 is embedded in the mounting ring groove 19. The inner wall of the mounting ring groove 19 on each side opposite to the mounting port 16 has an abutment surface 20. The fixed inner cover 17 can be initially positioned by abutting against the abutment surface 20 when embedded in the groove. A snap-fit ​​ring groove 21 is also formed along the inner peripheral wall of the mounting ring groove 19. The span distance from the snap-fit ​​ring groove 21 to the abutment surface 20 is adapted to the thickness of the fixed inner cover 17. The snap-fit ​​spring 22 is embedded in the snap-fit ​​ring groove 21 to achieve bidirectional restriction of the position of the fixed inner cover 17 by the snap-fit ​​ring groove 21 and the abutment surface 20. Both sides of the fixed inner cover 17 have through holes 18. The two ends of the output shaft 42 pass through the through holes 18 at both ends to connect to the external actuator.

[0055] See Figure 2 By adjusting the rotation angle of the output base 41 relative to the reducer host 1, the angle of the output shaft 42 can be adjusted to suit complex spatial layouts and meet the working direction requirements of different actuators without changing the overall structure.

[0056] See Figure 6 and Figure 8 Each transmission mechanism 3 includes a drive shaft 31 and a first bevel gear 32. Each drive shaft 31 is rotatably mounted on the reducer host 1, and its rotation axis is perpendicular to both the rotation axis of the input main shaft 2 and the rotation axis of the output shaft 42. One end of the drive shaft 31 extends to the reducer host 1, and the other end of the drive shaft 31 passes through the second chamber 14, and the first bevel gear 32 is coaxially fixed at this end. At least one first bearing component 15 is installed in the second chamber 14, which is sleeved on the outside of the drive shaft 31. Its outer ring abuts and is fixed to the cavity wall of the second chamber 14, and its inner ring supports and guides the rotation of the drive shaft 31. The first bevel gear 32 is sleeved with a second bearing component 23, whose outer ring abuts and is fixed to the cavity wall of the second chamber 14, and whose inner ring supports and guides the rotation of the first bevel gear 32.

[0057] Each output socket 41 has a first meshing area 51 and a second meshing area 52 at a relative position along the rotation axis of its corresponding output shaft 42. The second bevel gear 43 can be switched between the two meshing areas. The first meshing area 51 and the second meshing area 52 are respectively set at the two ends of the first chamber 13; Figure 7As shown, during installation, the second bevel gear 43 in the left output mechanism 4 is placed in the first meshing area 51 of its first chamber 13, while the second bevel gear 43 in the other right output mechanism 4 is placed in the second meshing area 52 of its first chamber 13. The input spindle 2 drives the drive shafts 31 on both sides to rotate. The drive shafts 31 on both sides drive the two first bevel gears 32 to rotate synchronously. Subsequently, the two first bevel gears 32 drive the two second bevel gears 43 meshing with them to rotate synchronously. The second bevel gear 43 located in the first meshing area 51 drives the corresponding output shaft 42 to rotate in the first direction, and the second bevel gear 43 located in the second meshing area 52 drives the corresponding output shaft 42 to rotate in the second direction. The second direction is opposite to the first direction, that is, the two drive shafts 31 rotate clockwise and counterclockwise respectively.

[0058] See Figure 8 The second bevel gears 43 in both output mechanisms 4 can be installed in the corresponding first meshing area 51. In this case, the two output shafts 42 will rotate in the same direction. Alternatively, the two second bevel gears 43 can be installed in the corresponding second meshing area 52. The two output shafts 42 will also rotate in the same direction, but in opposite directions.

[0059] See Figure 9 Both output mechanisms 4 can be installed on the same side of the reducer host 1.

[0060] The specific work process of this plan is as follows:

[0061] This technical solution uses a power source to drive the input spindle 2 to rotate. The input spindle 2 transmits power to each drive shaft 31 perpendicular to its axis through a transmission assembly, realizing power input and transmission. Each drive shaft 31 drives the first bevel gear 32, which is fixed coaxially with it, to rotate synchronously, performing the first stage of transmission. The second bevel gear 43 is detachably installed in the output seat 41, which has two different meshing areas (i.e., the first meshing area 51 and the second meshing area 52). The second bevel gear 43 always meshes with the first bevel gear 32 on the tooth surface of the first side in the first meshing area 51. The drive output shaft 42 rotates in the first direction (e.g., clockwise). In the second meshing area 52, it always meshes with the first bevel gear 32 on the opposite second side tooth surface. Correspondingly, the drive output shaft 42 rotates in the second direction (e.g., counterclockwise). The direction is reversed by changing the meshing position of the tooth surface. This design enables independent and convenient control of the rotation direction of multiple output shafts 42 under a single power source input. It optimizes the limitations of traditional single reducers in achieving independent drive and direction adjustment of multiple actuators, making it suitable for more application scenarios that require independent control of actuators with different rotation directions, thus improving practicality and flexibility.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A speed reducer with adjustable output direction, characterized in that, include: The reducer main unit (1) is provided with an input spindle (2), which is used to connect to a power source; At least two output drive devices are provided on the main reducer (1). Each output drive device includes a transmission mechanism (3) and an output mechanism (4). The transmission mechanism (3) includes a drive shaft (31) and a first bevel gear (32) coaxially fixed on the drive shaft (31). The drive shaft (31) is rotatably disposed relative to the main reducer (1). The input spindle (2) drives the drive shaft (31) to rotate. The drive shaft (31) drives the first bevel gear (32) to rotate. Each output mechanism (4) includes an output seat (41), an output shaft (42) disposed on the output seat (41), and a second bevel gear (43) coaxially fixed on the output shaft (42). The output shaft (42) is rotatably disposed relative to the output seat (41), and the output shaft (42) is perpendicular to the rotation axis of the drive shaft (31). The output seat (41) has a first meshing area (51) and a second meshing area (52) at a relative position along the rotation axis of the corresponding output shaft (42). The first bevel gear (32) meshes with the second bevel gear (43). When the second bevel gear (43) is located in the first meshing area (51), the first bevel gear (32) drives the second bevel gear (43) to rotate, causing the output shaft (42) to rotate in the first direction. When the second bevel gear (43) switches to the second meshing area (52), the output shaft (42) rotates in the second direction opposite to the first direction.

2. The adjustable output direction speed reducer according to claim 1, characterized in that: The output base (41) can be rotated and adjusted relative to the reducer host (1) to adjust the angle of the output shaft (42).

3. A speed reducer with adjustable output direction according to claim 1 or 2, characterized in that: The output seat (41) is provided with a fastener (6), and the output seat (41) is fixed to the reducer host (1) by the fastener (6).

4. The adjustable output direction reducer according to claim 3, characterized in that: The output seat (41) has a protruding connecting ring (7), and the connecting ring (7) has a plurality of connecting holes (8) in the circumferential direction. The reducer host (1) has a plurality of connecting holes (9), and the plurality of connecting holes (9) are arranged in a one-to-one correspondence with the plurality of connecting holes (8). The output seat (41) is rotated and adjusted relative to the reducer host (1), and each of the second connection holes (9) can be aligned with different first connection holes (8), so that each first connection hole (8) can be fitted with the fastener (6), and the fastener (6) is connected to the corresponding second connection hole (9).

5. The adjustable output direction reducer according to claim 4, characterized in that: The main body of the speed reducer (1) has a protruding mounting boss (10), the mounting boss (10) has a second connecting hole (9), the mounting boss (10) has a protruding positioning protrusion (11), and the connecting ring (7) has a corresponding positioning ring groove (12) near the mounting boss (10) for the positioning protrusion (11) to be inserted.

6. The adjustable output direction reducer according to claim 5, characterized in that: The output socket (41) includes: The mounting part (411) has a first chamber (13), the two ends of the first chamber (13) are configured as a first meshing area (51) and a second meshing area (52), and the output shaft (42) and the second bevel gear (43) are installed in the first chamber (13); A connecting part (412) is provided on the mounting part (411). The connecting part (412) has a second chamber (14) that communicates with the side of the first chamber (13). The drive shaft (31) extends into the second chamber (14), and the extended end of the drive shaft (31) is provided with the first bevel gear (32).

7. The adjustable output direction reducer according to claim 6, characterized in that: The mounting part (411) has mounting ports (16) at both ends of the opposite end along the rotation direction of the output shaft (42). The mounting ports (16) are connected to the first chamber (13) to the outside. The mounting ports (16) are all fitted with fixed inner covers (17). The fixed inner covers (17) have through holes (18) for the output shaft (42) to pass through. The mounting port (16) is provided with a mounting ring groove (19) near the inner peripheral wall of the first chamber (13). The mounting ring groove (19) has an abutment surface (20) on one side opposite to the mounting port (16). The mounting ring groove (19) has a snap-fit ​​ring groove (21) along its inner peripheral wall. A snap-fit ​​spring (22) is embedded in the snap-fit ​​ring groove (21). One side of the fixed inner cover (17) is positioned against the corresponding abutment surface (20), and the other side is against the snap-fit ​​spring (22) to prevent it from detaching from the mounting port (16).

8. The adjustable output direction reducer according to claim 6, characterized in that: At least one first bearing component (15) is installed in the second chamber (14), and the first bearing component (15) is fitted on the outside of the drive shaft (31) for guiding rotation.

9. The adjustable output direction reducer according to claim 1, characterized in that: Both the first bevel gear (32) and the second bevel gear (43) are fitted with a second bearing component (23).

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