Speed reducer with adjustable output direction

Abstract

The technical scheme belongs to the technical field of speed reducers, and particularly relates to an output-direction-adjustable speed reducer which comprises a speed reducer main machine, an input main shaft and at least two output driving devices are arranged on the speed reducer main machine in a penetrating mode, the speed reducer main machine comprises a transmission mechanism and an output mechanism, and the transmission mechanism comprises a driving shaft and a first bevel gear; the input main shaft drives the driving shaft to rotate; the driving shaft drives the first bevel gear to rotate; the output mechanism comprises an output seat, an output shaft and a second bevel gear, the output shaft rotates relative to the output seat, and the output shaft is perpendicular to the rotation axis of the driving shaft; a first meshing area and a second meshing area are arranged in the output base along the relative positions corresponding to the rotation axis of the output shaft, the first bevel gear is meshed with the second bevel gear, and when the second bevel gear is located in the first meshing area, the first bevel gear drives the second bevel gear to rotate to enable the output shaft to rotate in the first direction; the output shaft rotates in a second direction opposite to the first direction.

Description

Technical Field

[0001] The present invention relates to the technical field of reducers, and in particular to a reducer with adjustable output direction. Background Art

[0002] A reducer is a power transmission device that is usually driven by a gear set to achieve speed ratio conversion, converting the high-speed rotation of a power source such as a motor or engine into the low-speed, high-torque output required to match the actuator.

[0003] For example, Chinese patent CN204096569U discloses an automatic feeding device, including a machine base, on which a motor and a reducer are installed, a pressure wheel assembly is provided at the output end of the reducer, and the pressure wheel assembly includes a clamping pressure wheel and a cross device, a large gear is provided on the output shaft of the reducer, and a small gear is provided on the clamping pressure wheel. The large gear and the small gear are engaged to realize power transmission, and the round steel is pressed by the clamping pressure wheel. When the motor works, it drives the reducer and drives the clamping pressure wheel to rotate, thereby driving the round steel to move and realize feeding.

[0004] The reducer in the above-mentioned automatic feeding device basically has a single drive for power transmission, which limits the application scenarios of the power unit. In actual use, this method is used for single-point clamping and conveying. If two actuators that need to be independently controlled in direction (such as forward and reverse or different axes) need to be driven, it is usually necessary to configure a set of reducer power units for each component separately, which increases the complexity of the equipment to achieve mechanical reversing, has poor adaptability and scalability to different application scenarios, and has limitations in use. Summary of the Invention

[0005] In order to improve the problem that it is difficult to independently control multiple execution components in a single reducer driving mode, which leads to usage limitations, this technical solution provides a reducer with adjustable output direction.

[0006] The purpose of this technical solution is achieved in this way: A speed reducer with adjustable output direction, comprising: A reducer main unit, which is provided with an input main shaft, and the input main shaft is used to connect to a power source; At least two output drive devices, both of which are provided on the reducer main unit, each of the output drive devices includes a transmission mechanism and an output mechanism, wherein each of the transmission mechanisms includes a drive shaft and a first bevel gear coaxially fixed to the drive shaft, the drive shaft is rotatably arranged relative to the reducer main unit, the input main shaft drives the drive shaft to rotate, and the drive shaft drives the first bevel gear to rotate; The output mechanism includes an output seat, an output shaft disposed on the output seat, and a second bevel gear coaxially fixed to the output shaft, wherein the output shaft is rotatable relative to the output seat and is perpendicular to the rotation axis of the drive shaft; The output seat has a first meshing area and a second meshing area at relative positions along the inner edge corresponding to the output shaft rotation axis. The first bevel gear is meshed with the second bevel gear. When the second bevel gear is located in the first meshing area, the first bevel gear drives the second bevel gear to rotate, so that the output shaft rotates in a first direction. When the second bevel gear switches to the second meshing area, the output shaft rotates in a second direction opposite to the first direction.

[0007] Through the above technical solution, during normal use of a speed reducer with adjustable output direction, a power source drives the input spindle to rotate. The input spindle transmits power to each drive shaft perpendicular to its axis through a transmission assembly, achieving power input and transmission. Each drive shaft drives a first bevel gear fixed coaxially with it to rotate synchronously, performing the first stage of transmission. The second bevel gear is detachably mounted in the output housing, which is provided with two different meshing areas (i.e., a first meshing area and a second meshing area). In the first meshing area, the second bevel gear always meshes with the first bevel gear on the tooth surface of the first side, correspondingly driving the output shaft to rotate in a first direction (e.g., clockwise). In the second meshing area, the second bevel gear always meshes with the first bevel gear on the tooth surface of the opposite second side, correspondingly driving the output shaft to rotate in a second direction (e.g., counterclockwise). Direction reversal is achieved by changing the meshing position of the tooth surfaces. This design achieves independent and convenient control of the rotation directions of multiple output shafts under a single power source input, improving the limitations of traditional single speed reducers that make it difficult to achieve independent drive and direction adjustment of multiple actuators, making it suitable for more application scenarios requiring independent control of actuators with different rotation directions, and improving practicality and flexibility.

[0008] Preferably, the output seat can be rotated and adjusted relative to the reducer main unit to adjust the angular direction of the output shaft.

[0009] Through the above technical solution, the output seat can be rotated and adjusted on the reducer main unit to achieve independent and flexible adjustment of the output angle of the output shaft, enhance the adaptability to complex spatial layout, and meet the operating direction requirements of different actuators without changing the overall structure.

[0010] Preferably, the output seat is provided with a fastener, and the output seat is fixed to the reducer main unit through the fastener.

[0011] With the above technical solution, the angular direction of the output shaft can be adjusted by loosening the fastener, rotating the output seat to the desired angle, and then re-locking it.

[0012] Preferably, the output seat is provided with a protruding connecting convex ring, the connecting convex ring is provided with a plurality of connecting holes 1 along the circumferential direction, the reducer main body is provided with a plurality of connecting holes 2, and the plurality of connecting holes 2 are provided in a one-to-one correspondence with the plurality of connecting holes; The output seat is rotated and adjusted relative to the reducer main unit, and each of the second connecting holes can be aligned with a different one of the first connecting holes, so that each of the first connecting holes can be penetrated by the fastener, and the fastener is connected to the corresponding second connecting hole.

[0013] Through the above technical solution, the output seat is rotated during adjustment. Based on the one-to-one alignment of the connection hole one and the connection hole two, different connection holes one are aligned with the corresponding connection holes two on the reducer main unit. Each fastener passes through the aligned hole one and hole two to achieve connection to lock the output seat, so that the output shaft angle is synchronously adjusted to the preset direction. The discrete hole design realizes accurate and stable positioning of the output shaft angle, thereby enhancing the adjustment reliability; the multi-hole layout provides flexible angle selection, thereby improving spatial adaptability.

[0014] Preferably, the reducer main unit is provided with a mounting boss, the mounting boss is provided with the second connecting hole, the mounting boss is provided with a positioning boss, and the connecting convex ring is provided with a positioning ring groove for the positioning boss to be embedded near the mounting boss.

[0015] Through the above technical solution, the positioning protrusion and the positioning ring groove are adapted to achieve pre-positioning during installation and rotational guidance during subsequent adjustment through interlocking, ensuring rapid and accurate alignment of the first and second connection holes, improving adjustment efficiency; after locking, they collaboratively share the shear force, enhancing the stability and torsional reliability of the output seat.

[0016] Preferably, the output seat includes: The mounting portion has a first cavity, the first cavity includes the first meshing area and the second meshing area, and the output shaft and the second bevel gear are mounted in the first cavity; A connecting portion is arranged on the mounting portion, and the connecting portion corresponds to a second chamber, the second chamber is connected to the side of the first chamber, the drive shaft extends into the second chamber, and the extending end of the drive shaft is provided with the first bevel gear.

[0017] Through the above technical solution, the drive shaft extends to the second chamber, and the first bevel gear provided at its extended end extends into the first chamber and engages with the second bevel gear. The power is transmitted to the second bevel gear through the drive shaft to realize power transmission.

[0018] Preferably, the mounting portion has mounting openings at both opposite 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 installed with fixed inner covers, and the fixed inner covers are provided with a through hole for the output shaft to pass through; The inner circumferential wall of the mounting port close to the first chamber is also provided with a mounting ring groove, and the end face of the mounting ring groove opposite to the mounting port has a supporting surface. The mounting ring groove is provided with a clamping ring groove along the inner circumferential wall, and a retaining spring is embedded in the clamping ring groove. One side of the fixed inner cover rests on the corresponding retaining surface for positioning, and the other side rests on the retaining spring to limit separation from the mounting port.

[0019] Through the above technical solution, one side of the fixed inner cover is axially positioned against the abutment surface of the mounting ring groove, and the other side is pressed and limited by the retaining spring embedded in the clamping ring groove. The abutment surface and the retaining spring form a bidirectional rigid constraint to ensure that the fixed inner cover is vibration-resistant and anti-detachment, and maintain the sealing of the interior of the first chamber. When disassembling, the retaining spring can be removed to remove the fixed inner cover, and the mounting port is opened, so that the output shaft and the second bevel gear can be directly installed in or removed from the first chamber through the mounting port, so that the second bevel gear can change the position between the first meshing area and the second meshing area, thereby improving operational convenience and maintenance efficiency.

[0020] Preferably, at least one first bearing member is installed in the second chamber, and the first bearing member is sleeved on the outside of the drive shaft for guiding rotation.

[0021] Through the above technical solution, synchronous rotation is achieved through the interference fit between the inner ring of the first bearing component and the drive shaft, and the outer ring is fixed with the second chamber in a static fit to form a rotation guide support structure for the drive shaft. Rolling friction replaces sliding friction, reducing rotational deflection and ensuring power transmission stability and transmission efficiency.

[0022] Preferably, the first bevel gear and the second bevel gear are both sleeved with a second bearing.

[0023] Through the above technical solution, the rolling bearing of the second bearing component replaces the gear shaft to directly contact the cavity wall, thereby converting sliding friction into rolling friction and reducing the energy loss of meshing transmission.

[0024] Compared with the existing technology, this technical solution has the following outstanding and beneficial technical effects: 1. This technical solution provides a first meshing area and a second meshing area on the output seat. The double meshing areas enable the second bevel gear to mesh with different side tooth surfaces of the first bevel gear, thereby adjusting the forward / reverse rotation of the drive output shaft. This achieves independent control of the rotation direction of multiple output shafts under a single power source input, improves the applicability of independent driving of multiple actuators, and is suitable for more application scenarios that require independent control of actuators with different rotation directions, thereby improving practicality and flexibility. 2. This technical solution adjusts the angular direction of the output shaft by rotating the output seat relative to the reducer main unit, thereby enhancing adaptability to complex spatial layouts and meeting the operating direction requirements of different actuators without changing the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall structure of this embodiment; Figure 2 This is another operating state schematic diagram of this embodiment; Figure 3 This is a partial explosion diagram of this embodiment; Figure 4 For this embodiment Figure 3 Schematic diagram from another perspective; Figure 5 A partial exploded schematic diagram of the output mechanism in the embodiment; Figure 6 Schematic diagram of the structural coordination between the first bevel gear and the second bevel gear in the embodiment; Figure 7 It is a partial cross-sectional schematic diagram of this embodiment; Figure 8 For this embodiment Figure 7 One of the partial cross-sectional schematic views of another mating state; Figure 9 For this embodiment Figure 7 A second partial cross-sectional schematic diagram of another mating state; Figure 10 It is a partial cross-sectional schematic diagram of the output mechanism in the embodiment.

[0026] Figure markings: 1. reducer main unit; 2. input main shaft; 3. transmission mechanism; 31. drive shaft; 32. first bevel gear; 4. output mechanism; 41. output seat; 411. mounting portion; 412. connecting portion; 42. output shaft; 43. second bevel gear; 51. first meshing area; 52. second meshing area; 6. fastener; 7. connecting convex ring; 8. connecting hole 1; 9. connecting hole 2; 10. mounting boss; 11. positioning boss; 12. positioning ring groove; 13. first chamber; 14. second chamber; 15. first bearing member; 16. mounting port; 17. fixed inner cover; 18. through hole; 19. mounting ring groove; 20. abutment surface; 21. snap ring groove; 22. retaining spring; 23. second bearing member. DETAILED DESCRIPTION

[0027] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0028] Example: See also Figure 1, a speed reducer with adjustable output direction, including a speed reducer main unit 1, which is rectangular in shape. The speed reducer main unit 1 is a prior art, and reference can be made to Chinese patent CN112276643A, which discloses a material transport mechanism and a feeding system, in which the driving device is provided with a worm gear structure. The speed reducer main unit in this application can also adopt the existing speed reducer structure, which will not be described in detail here; the speed reducer main unit 1 is provided with an input spindle 2, which is passed through the speed reducer main unit 1 and rotatably mounted on the speed reducer main unit 1, and the rotation axis of the input spindle 2 is arranged in the horizontal direction, and the output The two ends of the input main shaft 2 pass through the reducer main unit 1 in the front-back direction for the power source (such as a motor) to be connected. The motor drives the input main shaft 2 to rotate through the transmission structure; the reducer main unit 1 is provided with an output drive device, which is at least two. The output drive devices include a transmission mechanism 3 and an output mechanism 4. This embodiment shows the situation where two output mechanisms 4 are installed on opposite sides of the reducer main unit 1 along the rotation axis of the input main shaft 2. The output mechanism 4 can also be increased in number according to actual needs. The output mechanism 4 can drive the execution device to work as a motor power unit.

[0029] See also 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, wherein the output seat 41 includes a mounting portion 411 and a connecting portion 412, one end of the connecting portion 412 is integrally connected to the mounting portion 411, and the other end can be connected to the reducer main unit 1, and the connection point between the two is close to the midpoint of the mounting portion 411, so that the overall shape of the output seat 41 is a T-shaped structure; the reducer main unit 1 is provided with the same number of mounting bosses 10 as the output seat 41, and the two mounting bosses 10 are arranged one by one near the output seats 41 on both sides, and a plurality of connecting holes 29 are opened on the mounting boss 10. In this embodiment, a plurality of connecting holes 29 are opened at equal distances along the circumferential direction, and each side of the mounting boss 10 has a protruding positioning boss 11, which is located on the end face of the mounting boss 10 facing away from the reducer main unit 1, and a plurality of connecting holes 29 are distributed on the outer peripheral side of the mounting boss 10.

[0030] The connecting portion 412 is provided with a protruding connecting convex ring 7, which is located outside the end of the connecting portion 412 away from the mounting portion 411. The size of the connecting convex ring 7 is adapted to the mounting boss 10, and the connecting convex ring 7 is provided with a positioning ring groove 12 for the positioning protrusion 11 to be embedded near the mounting boss 10; the connecting convex ring 7 is provided with a plurality of connecting holes 8, and the plurality of connecting holes 8 are arranged in a one-to-one correspondence with the plurality of connecting holes 2 9, and the output seat 41 is provided with a fastener 6, which is preferably a fastening bolt; after the positioning ring groove 12 is aligned with the corresponding positioning protrusion 11 and fitted, the connecting portion 412 is rested on the mounting boss 10 through the connecting convex ring 7, and the plurality of fasteners 6 pass through the connecting hole 8 one by one and are screwed into the connecting hole 2 9 for threaded connection, thereby realizing a fixed connection between the output seat 41 and the reducer host 1.

[0031] The output seat 41 is rotated and adjusted relative to the reducer main unit 1, and each connecting hole 2 9 can be aligned with a different connecting hole 1 8, thereby realizing graduated adjustment. For example, a specific implementation method is as follows: when there are two connecting holes 1 8 and two connecting holes 9, the output seat 41 can be rotated and adjusted in each level of 180 degrees. When there are three connecting holes 1 8 and two connecting holes 2, the output seat 41 can be rotated and adjusted in each level of 60 degrees. In theory, by increasing the number of connecting holes 1 8 and connecting holes 2 9 by analogy, the adjustment level difference can be further narrowed and the adjustable angle range can be expanded. Alternatively, other forms of rotating card-connecting structures can be set between the output seat 41 and the joint, and the card-connecting structure can be used to switch between the unlocked state and the locked state. The continuous rotation in the unlocked state and the fixed position in the locked state can realize the stepless adjustment of the output seat 41.

[0032] The mounting portion 411 has a first chamber 13, and the connecting portion 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 can be rotatably mounted on the connecting portion 412. The second bevel gear 43 is sleeved on the output shaft 42 and fixed coaxially with the output shaft 42; the mounting portion 411 has mounting openings 16 at both opposite ends along the rotation direction of the output shaft 42. The mounting openings 16 connect the first chamber 13 to the outside, and the output shaft 42 and the second bevel gear 43 can both enter the first chamber 13 through the mounting openings 16; the second bevel gear 43 is sleeved with a second bearing member 23, the outer ring of which is abutted and fixed to the cavity wall of the first chamber 13, and the inner ring supports and guides the rotation of the second bevel gear 43.

[0033] The mounting openings 16 are each provided with a fixed inner cover 17, and a mounting ring groove 19 is provided along the inner circumferential wall on the side of the mounting opening 16 close to the first chamber 13, the size of which is adapted to the fixed inner cover 17, and the edge portion of the fixed inner cover 17 is embedded in the mounting ring groove 19, and the inner groove wall on the side of each side mounting ring groove 19 opposite to the mounting opening 16 has a rest surface 20, and the fixed inner cover 17 is embedded in the groove and can rest on the rest surface 20 for initial positioning; the mounting ring groove 19 is also provided with a snap ring groove 21 along the inner circumferential wall, and the span distance from the snap ring groove 21 to the rest surface 20 is adapted to the thickness of the fixed inner cover 17, and the snap ring 22 is embedded in the snap ring groove 21 to realize the bidirectional restriction of the position of the fixed inner cover 17 by the snap ring groove 21 and the rest surface 20, and the fixed inner covers 17 on both sides have through holes 18, and the two ends of the output shaft 42 respectively pass through the through holes 18 at both ends to connect to the external actuator.

[0034] See also Figure 2 By adjusting the rotation angle of the output seat 41 relative to the reducer main unit 1, the angle of the output shaft 42 is adjusted to adapt to complex spatial layouts and meet the operating direction requirements of different execution components without changing the overall structure.

[0035] See also 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 main unit 1, and its rotation axis is perpendicular to 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 main unit 1, and the other end of the drive shaft 31 is passed through the second chamber 14, and the first bevel gear 32 is coaxially fixed to the end; at least one first bearing member 15 is installed in the second chamber 14, which is sleeved on the outside of the drive shaft 31, its outer ring is abutted and fixed to the cavity wall of the second chamber 14, and the inner ring supports and guides the rotation of the drive shaft 31; the first bevel gear 32 is sleeved with a second bearing member 23, its outer ring is abutted and fixed to the cavity wall of the second chamber 14, and the inner ring supports and guides the rotation of the first bevel gear 32.

[0036] Each output seat 41 is provided with 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 installed in the two meshing areas. The first meshing area 51 and the second meshing area 52 are respectively provided at the two end positions 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, and 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 main shaft 2 drives the drive shafts 31 on both sides to rotate, and the drive shafts 31 on both sides respectively drive the two first bevel gears 32 to rotate synchronously. Subsequently, the two first bevel gears 32 respectively drive the two second bevel gears 43 meshing therewith 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.

[0037] See also Figure 8 , the second bevel gears 43 in the two output mechanisms 4 can be installed in the corresponding first meshing areas 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 areas 52. The two output shafts 42 also rotate in the same direction, but in opposite directions.

[0038] See also Figure 9 , the two output mechanisms 4 can be installed on the same side of the reducer main unit 1.

[0039] The specific working process of this program is as follows: The present technical solution drives the input main shaft 2 to rotate by a power source, and the input main shaft 2 transmits power to each drive shaft 31 perpendicular to its axis through a transmission assembly to realize power input and transmission. Each drive shaft 31 drives the first bevel gear 32 fixed coaxially therewith to rotate synchronously to perform the first stage transmission. The second bevel gear 43 is detachably mounted in the output seat 41. The output seat 41 is provided with two different meshing areas (i.e., the first meshing area 51 and the second meshing area 52). The second bevel gear 43 is always meshed with the first bevel gear 32 on the tooth surface of the first side in the first meshing area 51 for transmission. The output shaft 42 is driven to rotate in a first direction (such as clockwise), and is always meshed with the first bevel gear 32 on the opposite second side tooth surface in the second meshing area 52. The output shaft 42 is correspondingly driven to rotate in a second direction (such as counterclockwise), and the direction is reversed by changing the meshing position of the tooth surface. This design realizes independent and convenient control of the rotation directions of multiple output shafts 42 under a single power source input, optimizes the limitations of traditional single reducers that are difficult to achieve independent drive and direction adjustment of multiple actuators, makes it suitable for more application scenarios that require independent control of actuators with different rotation directions, and improves practicality and flexibility.

[0040] The above shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. Those skilled in the art should understand that the present technical solution is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present technical solution. Various changes and improvements may be made to the present technical solution without departing from the spirit and scope of the present technical solution. Such changes and improvements fall within the scope of the present technical solution for which protection is sought. The scope of protection claimed by the present technical solution is defined by the appended claims and their equivalents.

Claims

1. A speed reducer with adjustable output direction, characterized in that: include: A reducer main unit (1) is provided with an input main shaft (2) passing through the main shaft, and the input main shaft (2) is used to be connected to a power source; At least two output drive devices are provided on the reducer main unit (1), and the output drive devices each include a transmission mechanism (3) and an output mechanism (4), wherein the transmission mechanism (3) each includes a drive shaft (31) and a first bevel gear (32) coaxially fixed to the drive shaft (31), the drive shaft (31) is rotatably arranged relative to the reducer main unit (1), the input main shaft (2) drives the drive shaft (31) to rotate, and the drive shaft (31) drives the first bevel gear (32) to rotate; The output mechanism (4) includes an output seat (41), an output shaft (42) arranged on the output seat (41), and a second bevel gear (43) coaxially fixed to the output shaft (42); the output shaft (42) is rotatably arranged 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 relative positions along the rotation axis of the corresponding output shaft (42); the first bevel gear (32) is meshed 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, so that the output shaft (42) rotates in a first direction; when the second bevel gear (43) switches to the second meshing area (52), the output shaft (42) rotates in a second direction opposite to the first direction.

2. The output direction adjustable reducer according to claim 1, characterized in that: The output seat (41) can be rotated and adjusted relative to the reducer main unit (1) to adjust the angular direction of the output shaft (42).

3. The output direction adjustable reducer 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 main unit (1) via the fastener (6).

4. The output direction adjustable reducer according to claim 3, characterized in that: The output seat (41) is provided with a protruding connecting convex ring (7), and the connecting convex ring (7) is provided with a plurality of connecting holes (8) along the circumferential direction. The reducer main unit (1) is provided with a plurality of connecting holes (9), and the plurality of connecting holes (9) are provided in a one-to-one correspondence with the plurality of connecting holes (8). The output seat (41) is rotatably adjusted relative to the reducer main unit (1), and each of the second connecting holes (9) can be aligned with a different first connecting hole (8), so that each first connecting hole (8) can be penetrated by the fastener (6), and the fastener (6) is connected to the corresponding second connecting hole (9).

5. The output direction adjustable reducer according to claim 4, characterized in that: The reducer main unit (1) is provided with a mounting boss (10) protruding therefrom, the mounting boss (10) is provided with the second connecting hole (9), the mounting boss (10) is provided with a positioning boss (11) protruding therefrom, and the connecting convex ring (7) is provided with a positioning ring groove (12) for the positioning boss (11) to be embedded therein, correspondingly close to the mounting boss (10).

6. The output direction adjustable reducer according to claim 5, characterized in that: The output seat (41) comprises: The mounting portion (411) has a first cavity (13), the first cavity (13) has two ends provided with the first meshing area (51) and the second meshing area (52), and the output shaft (42) and the second bevel gear (43) are mounted in the first cavity (13); A connecting portion (412) is provided on the mounting portion (411), the connecting portion (412) correspondingly having a second chamber (14), the second chamber (14) being connected to a side portion of the first chamber (13), the drive shaft (31) extending into the second chamber (14), and the first bevel gear (32) being provided at the extended end of the drive shaft (31).

7. The output direction adjustable reducer according to claim 6, characterized in that: The mounting portion (411) has mounting openings (16) at both opposite ends along the rotation direction of the output shaft (42), the mounting openings (16) are connected to the first chamber (13) to the outside, and the mounting openings (16) are installed with fixed inner covers (17), and the fixed inner covers (17) are provided with through holes (18) for the output shaft (42) to pass through. The mounting opening (16) is also provided with a mounting ring groove (19) on the inner peripheral wall close to the first chamber (13); the end face of the mounting ring groove (19) opposite to the mounting opening (16) has a supporting surface (20); the mounting ring groove (19) is provided with a snap ring groove (21) along the inner peripheral wall; a retaining spring (22) is embedded in the snap ring groove (21); one side of the fixed inner cover (17) is pressed against the corresponding retaining surface (20) for positioning, and the other side is pressed against the retaining spring (22) for limiting separation from the mounting opening (16).

8. The output direction adjustable 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 sleeved on the outside of the drive shaft (31) for guiding rotation.

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

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