Servo Gear Motor

Abstract

A servo geared motor includes a servo motor and a reducer, wherein the servo motor and the reducer are connected by a transfer mechanism. The transfer mechanism includes a connecting flange, a transfer box disposed on the side of the connecting flange facing the servo motor and having a transfer cavity in the middle, a transfer shaft rotatably disposed on the connecting flange with its head end connected to the reducer and its tail end extending into the transfer cavity of the transfer box, a locking sleeve disposed at the tail end of the transfer shaft and sleeved on the motor shaft of the servo motor, and a locking ring sleeved on the locking sleeve for locking the locking sleeve. The motor shaft of the servo motor is connected to the locking sleeve at the tail end of the transfer shaft via the locking ring. This invention has the advantages of simple structure, reasonable design, convenient assembly, and the ability to use ordinary gearboxes.

Description

Technical Field

[0001] This invention relates to a geared motor, and more particularly to a servo geared motor. Background Technology

[0002] With the development of industrial technology, servo motors are needed extensively in the machinery industry, especially in heavy industry where geared servo motors are required. Existing servo geared motors consist of two parts: a gear reduction end and a motor end. The gear reduction end is the transmission part, and the motor end is the power part. Due to the characteristics of servo motors, they require a separate planetary gearbox. However, planetary gearboxes are relatively large and heavy, making transportation cumbersome, time-consuming, and labor-intensive, significantly limiting the application and promotion of servo geared motors. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a servo geared motor that is simple in structure, reasonable in design, easy to assemble, and can use a common gearbox.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a servo geared motor, including a servo motor and a reducer, wherein the servo motor and the reducer are connected by a transfer mechanism; the transfer mechanism includes a connecting flange, a transfer box disposed on the side of the connecting flange facing the servo motor and having a transfer cavity in the middle, a transfer shaft rotatably disposed on the connecting flange and having its head end connected to the reducer and its tail end extending into the transfer cavity of the transfer box, a locking sleeve disposed at the tail end of the transfer shaft and sleeved on the motor shaft of the servo motor, and a locking ring sleeved on the locking sleeve and used to lock the locking sleeve, wherein the motor shaft of the servo motor is connected to the locking sleeve at the tail end of the transfer shaft through the locking ring.

[0005] Preferably, the connecting flange is fixedly connected to the tail end of the reducer by a first fastening screw.

[0006] Preferably, the transfer box and the connecting flange are integrally formed, and the end of the transfer box is fixedly connected to the servo motor by a second fastening screw.

[0007] Preferably, the connecting flange is provided with a bearing seat in the transfer cavity on the side facing the transfer box, the transfer shaft is provided in the bearing seat and two sets of bearings are provided between the transfer shaft and the bearing seat, and an adjusting shim is sleeved between the two sets of bearings on the transfer shaft.

[0008] Preferably, the intermediate shaft has a retaining ring fitted between the bearing housing and the end facing the servo motor, which abuts against the bearing sidewall facing the intermediate cavity. The outer ring of the retaining ring is embedded in the bearing housing. The front end of the intermediate shaft extends into the reducer and has helical teeth on its outer wall that mesh with the reducer. The intermediate shaft has a groove on its outer wall behind the helical teeth. The retaining ring for the shaft is embedded in the groove of the intermediate shaft and abuts against the bearing sidewall facing the connecting flange. An oil seal skeleton is provided between the intermediate shaft and the connecting flange.

[0009] Preferably, the locking sleeve has a locking stop on the side facing the central shaft. The central shaft, locking stop, and locking sleeve are integrally formed. The locking sleeve has a locking cavity for the insertion of the servo motor shaft and for interference fit with the servo motor shaft. The end of the locking sleeve has an opening communicating with the locking cavity. The inner end of the locking cavity extends into the locking stop. The locking cavity is generally cylindrical or rectangular in shape to match the servo motor shaft. The inner wall of the locking cavity is coated with an anti-slip coating. Several locking grooves extending to the locking stop are symmetrically arranged on the side wall of the locking sleeve. The end of the locking groove away from the central shaft extends to the opening. The end of the locking groove facing the central shaft extends to the locking stop and communicates with the locking cavity in the locking stop.

[0010] Preferably, the locking ring is a "C"-shaped structure with a locking notch on one side. The inner wall of the locking ring opposite to the locking notch has a buffer groove that is axially arranged along the locking ring and communicates with the inner ring of the locking ring. The inner side of the buffer groove is cylindrical. The locking ring has locking threaded holes on both the upper and lower sides of the locking notch. The locking ring has a countersunk hole at the opening of the locking threaded hole on one side of the locking notch. The countersunk hole contains a locking bolt that passes through and connects the locking threaded holes on the upper and lower sides of the locking ring. The locking ring has a dynamic balance surface on the outer wall opposite to the countersunk hole.

[0011] Preferably, the transfer box is provided with a locking hole that matches the countersunk hole of the locking ring, through which the locking bolt on the locking ring is tightened.

[0012] This invention connects a servo motor and a reducer by using a transfer shaft and a locking sleeve. The motor shaft of the servo motor is inserted into the locking cavity of the locking sleeve, and a locking ring secures the motor shaft to the locking sleeve. The transmission connection between the transfer shaft and the reducer is achieved through helical teeth on the transfer shaft. This greatly facilitates the assembly of the servo motor and reducer during linkage while ensuring production costs. The locking cavity has a cylindrical or rectangular structure that matches the motor shaft of the servo motor, and an anti-slip coating is applied to the inner wall of the locking cavity to enhance the connection stability between the locking sleeve and the motor shaft. A countersunk hole is provided on the locking ring, which greatly facilitates the assembly personnel to control the locking bolt to tighten the locking ring through the locking hole. A dynamic balancing surface is also provided on the locking ring to ensure the stability of the transfer shaft and the locking sleeve during transmission. This invention has the advantages of simple structure, reasonable design, convenient assembly, and compatibility with ordinary gearboxes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0014] Figure 2 This is a side view of the connecting flange and transfer box of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the rotating shaft, locking sleeve, and locking ring in this invention.

[0016] In the diagram: 1. Servo motor; 2. Reducer; 3. Transfer mechanism; 4. Connecting flange; 5. Transfer box; 6. Transfer cavity; 7. Transfer shaft; 8. Locking sleeve; 9. Locking ring; 10. First fastening screw; 11. Second fastening screw; 12. Bearing housing; 13. Bearing; 14. Adjusting shim; 15. Hole retaining ring; 16. Shaft retaining ring; 17. Oil seal skeleton; 18. Locking stop block; 19. Locking cavity; 20. Anti-slip coating; 21. Locking groove; 22. Locking notch; 23. Buffer groove; 24. Locking threaded hole; 25. Countersunk hole; 26. Locking bolt; 27. Dynamic balance surface; 28. Locking hole; 29. ​​Helical tooth; 30. Slot; 31. Opening. Detailed Implementation

[0017] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0018] Example:

[0019] like Figures 1 to 3The servo geared motor shown includes a servo motor 1 and a reducer 2. The servo motor 1 and the reducer 2 are connected by a transfer mechanism 3. The transfer mechanism 3 includes a connecting flange 4, a transfer box 5 disposed on the side of the connecting flange 4 facing the servo motor 1 and having a transfer cavity 6 in the middle, a transfer shaft 7 rotatably disposed on the connecting flange 4 with its head end connected to the reducer 2 and its tail end extending into the transfer cavity 6 of the transfer box 5, a locking sleeve 8 disposed at the tail end of the transfer shaft 7 and sleeved on the motor shaft of the servo motor 1, and a locking ring 9 sleeved on the locking sleeve 8 for locking the locking sleeve 8. The motor shaft of the servo motor 1 is connected to the locking sleeve 8 at the tail end of the transfer shaft 7 through the locking ring 9.

[0020] The connecting flange 4 is fixedly connected to the tail end of the reducer 2 by the first fastening screw 10; the transfer box 5 is integrally formed with the connecting flange 4, and the end of the transfer box 5 is fixedly connected to the servo motor 1 by the second fastening screw 11; the connecting flange 4 is provided with a bearing seat 12 located in the transfer cavity 6 on the side facing the transfer box 5, the transfer shaft 7 is set in the bearing seat 12 and two sets of bearings 13 are provided between the transfer shaft 7 and the bearing seat 12, and an adjusting shim 14 is sleeved between the two sets of bearings 13 on the transfer shaft 7.

[0021] The intermediate shaft 7 has a retaining ring 15 fitted between the bearing housing 12 and the end facing the servo motor 1, which abuts against the side wall of the bearing 13 facing the intermediate cavity 6. The outer ring of the retaining ring 15 is embedded in the bearing housing 12. The front end of the intermediate shaft 7 extends into the reducer 2 and has a helical tooth 29 on its outer wall that meshes with the reducer 2. The intermediate shaft 7 has a groove 30 on the outer wall behind the helical tooth 29. A shaft retaining ring 16 is embedded in the groove 30 of the intermediate shaft 7 and abuts against the side wall of the bearing 13 facing the connecting flange 4. An oil seal skeleton 17 is provided between the intermediate shaft 7 and the connecting flange 4.

[0022] The locking sleeve 8 has a locking stop 18 on the side facing the central shaft 7. The central shaft 7, locking stop 18, and locking sleeve 8 are integrally formed. The locking sleeve 8 has a locking cavity 19 for the insertion of the motor shaft of the servo motor 1 and for interference fit with the motor shaft of the servo motor 1. The end of the locking sleeve 8 has an opening 31 communicating with the locking cavity 19. The inner end of the locking cavity 19 extends into the locking stop 18. The locking cavity 19 is integrally formed with the servo motor 1. The motor shaft of the machine 1 has a cylindrical or rectangular structure that matches it. The inner wall of the locking cavity 19 is coated with an anti-slip coating 20. The side wall of the locking sleeve 8 is symmetrically provided with a plurality of locking grooves 21 extending to the locking block 18. The end of the locking groove 21 away from the central shaft 7 extends to the opening 31. The end of the locking groove 21 facing the central shaft 7 extends to the locking block 18 and communicates with the locking cavity 19 in the locking block 18.

[0023] The locking ring 9 is a "C"-shaped structure with a locking notch 22 on one side. On the inner wall of the other side of the locking ring 9 opposite to the locking notch 22, there is a buffer groove 23 that is axially arranged along the locking ring 9 and communicates with the inner ring of the locking ring 9. The inner side of the buffer groove 23 is cylindrical. The locking ring 9 has locking threaded holes 24 on both the upper and lower sides of the locking notch 22. The locking ring 9 has a countersunk hole 25 at the opening of the locking threaded hole 24 on one side of the locking notch 22. The countersunk hole 25 has a locking bolt 26 that passes through and connects the locking threaded holes 24 on both the upper and lower sides of the locking ring 9. The locking ring 9 has a dynamic balance surface 27 on the outer wall of the other side opposite to the countersunk hole 25.

[0024] The transfer box 5 is provided with a locking hole 28 that matches the countersunk hole 25 of the locking ring 9, and the locking bolt 26 on the locking ring 9 is tightened through the locking hole 28.

[0025] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A servo geared motor, comprising a servo motor (1) and a reducer (2), characterized in that: The servo motor (1) and the reducer (2) are connected by a transfer mechanism (3); the transfer mechanism (3) includes a connecting flange (4), a transfer box (5) located on the side of the connecting flange (4) facing the servo motor (1) and having a transfer cavity (6) in the middle, a transfer shaft (7) rotatably mounted on the connecting flange (4) with its head end connected to the reducer (2) and its tail end extending into the transfer cavity (6) of the transfer box (5), and a sleeve on the tail end of the transfer shaft (7). A locking sleeve (8) is mounted on the motor shaft of the servo motor (1), and a locking ring (9) is fitted on the locking sleeve (8) and used to lock the locking sleeve (8). The motor shaft of the servo motor (1) is connected to the locking sleeve (8) at the tail end of the intermediate shaft (7) through the locking ring (9). The locking ring (9) is a "C"-shaped structure with a locking notch (22) on one side. The inner wall of the locking ring (9) opposite to the locking notch (22) is provided with a locking ring (9) along the axis of the locking ring (9). A buffer groove (23) is provided and communicates with the inner ring of the locking ring (9). The inner side of the buffer groove (23) is cylindrical. The locking ring (9) has locking threaded holes (24) on both the upper and lower sides of the locking notch (22). The locking ring (9) has a countersunk hole (25) at the opening of the locking threaded hole (24) on one side of the locking notch (22). The countersunk hole (25) is provided with a locking bolt (26) that passes through and connects the locking threaded holes (24) on both the upper and lower sides of the locking ring (9). The locking ring (9) has a dynamic balance surface (27) on the outer wall opposite to the countersunk hole (25). The transfer box (5) and the connecting flange (4) are integrally formed. The end of the transfer box (5) is fixedly connected to the servo motor (1) by the second fastening screw (11). The transfer box (5) has a locking hole (28) that matches the countersunk hole (25) of the locking ring (9). The locking bolt (26) on the locking ring (9) is tightened through the locking hole (28).

2. The servo geared motor according to claim 1, characterized in that: The connecting flange (4) is fixedly connected to the tail end of the reducer (2) by the first fastening screw (10).

3. The servo geared motor according to claim 1, characterized in that: The connecting flange (4) is provided with a bearing seat (12) located in the transfer cavity (6) on the side facing the transfer box (5). The transfer shaft (7) is located in the bearing seat (12) and two sets of bearings (13) are provided between it and the bearing seat (12). An adjusting shim (14) is sleeved between the two sets of bearings (13) on the transfer shaft (7).

4. The servo geared motor according to claim 1, characterized in that: The intermediate shaft (7) is fitted with a retaining ring (15) that abuts against the side wall of the bearing (13) facing the intermediate cavity (6) between the bearing housing (12) and the end facing the servo motor (1). The outer ring of the retaining ring (15) is embedded in the bearing housing (12). The front end of the intermediate shaft (7) extends into the reducer (2) and has a helical tooth (29) that meshes with the reducer (2) on its outer wall. The intermediate shaft (7) has a groove (30) on the outer wall behind the helical tooth (29). A shaft retaining ring (16) that abuts against the side wall of the bearing (13) facing the connecting flange (4) is embedded in the groove (30) of the intermediate shaft (7). An oil seal skeleton (17) is provided between the intermediate shaft (7) and the connecting flange (4).

5. The servo geared motor according to claim 1, characterized in that: The locking sleeve (8) has a locking stop (18) on the side facing the central shaft (7). The central shaft (7), the locking stop (18), and the locking sleeve (8) are integrally formed. The locking sleeve (8) has a locking cavity (19) for inserting the motor shaft of the servo motor (1) and for interference fit with the motor shaft of the servo motor (1). The end of the locking sleeve (8) has an opening (31) communicating with the locking cavity (19). The inner end of the locking cavity (19) extends into the locking stop (18). The locking cavity (19) is integrally formed with the servo motor (7). The motor shaft of the servo motor (1) is matched with a cylindrical or rectangular structure. The inner wall of the locking cavity (19) is coated with an anti-slip coating (20). The side wall of the locking sleeve (8) is symmetrically provided with a number of locking grooves (21) extending to the locking block (18). The end of the locking groove (21) away from the central shaft (7) extends to the opening (31). The end of the locking groove (21) facing the central shaft (7) extends to the locking block (18) and communicates with the locking cavity (19) in the locking block (18).

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