Coaxial dual-output motor
By setting output shafts at the front and rear ends of the motor main body and using the reduction structure to achieve bidirectional output and deceleration effects, the problems of large size and high cost of traditional motors are solved, and efficient bidirectional power output is achieved.
Patent Information
- Application Number
- CN202420935437.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Traditional motors have only one end output shaft, which means that two motors need to be used when processing objects on both sides of the motor, resulting in large volume and high cost.
A coaxial dual output motor is designed, by setting an output shaft at the front and rear ends of the motor main body, and bidirectional output is achieved using the first- and second-level reduction structures, and the rear-end output shaft realizes deceleration output through the reduction mechanism.
It realizes that there are output shafts at both ends of the motor, which can drive the transmission mechanism on both sides, realize two-way output, and realize the reduction output through the reduction mechanism, reducing cost and volume.
Smart Images
Figure CN222234599U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of motors, and in particular to a coaxial dual-output motor. Background Art
[0002] Traditional motors have only one output shaft, which extends from the center of the front end of the motor body. The rear end of the motor body is the rear cover. In industrial production, in many cases, it is necessary to process objects on the front and back sides of the motor. At this time, in order to have power output on both sides, it is necessary to use two single output shaft motors with the tails placed relative to each other to output power on both sides. Using two motors will result in a larger volume and higher cost. Utility Model Content
[0003] The problem solved by the utility model is how to provide a coaxial double-output motor with output shafts at both ends.
[0004] To solve the above problems, the utility model provides a coaxial dual-output motor, comprising: a motor body, a first output shaft, a rear end extension shaft, a first reducer and a second output shaft, the first output shaft extending from the front end center of the motor body as the front end output shaft of the motor, the rear end extension shaft extending from the rear end center of the motor body, the extending end of the rear end extension shaft is fixedly connected to the input end of the first reducer, and the second output shaft is arranged at the output end of the first reducer as the rear end output shaft of the motor.
[0005] Furthermore, the motor body includes a motor housing and a stator coil and a rotor core located inside the motor housing.
[0006] Furthermore, the first reducer includes a cylindrical outer shell, and a first reduction structure and a second reduction structure located inside the outer shell.
[0007] Furthermore, the first reducer also includes a connecting front cover located at the front end of the shell and a fixed rear cover located at the rear end of the shell.
[0008] Furthermore, an annular inner gear ring is provided on the inner wall of the shell.
[0009] Furthermore, the first reduction structure includes a first main gear and a first planetary gear set, the first planetary gear set includes a first planetary gear, a second planetary gear, a third planetary gear, and a fourth planetary gear, the rear end extension shaft passes through the middle part of the connecting front cover, and is fixedly connected to the center of one end of the first main gear, the other end of the first main gear is respectively meshed with the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear, the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear are arranged around the first main gear, and the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear are also respectively meshed with the inner ring gear.
[0010] Furthermore, the first reduction structure also includes a first gear rack, on which a first gear shaft, a second gear shaft, a third gear shaft and a fourth gear shaft are provided, and the first gear shaft, the second gear shaft, the third gear shaft and the fourth gear shaft are fixedly connected to the centers of the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear, respectively, so that the first gear rack rotates with the revolution of the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear.
[0011] Furthermore, the second reduction structure includes a second main gear and a fifth planetary gear, a sixth planetary gear, a seventh planetary gear, and an eighth planetary gear. The bottom of the second main gear is fixed to the center of the bottom surface of the first gear rack. The fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear are arranged around the second main gear and meshed with the second main gear. The fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear are also meshed with the inner ring gear respectively.
[0012] Furthermore, the second reduction structure includes a second main gear and a second planetary gear set, the second planetary gear set includes a fifth planetary gear, a sixth planetary gear, a seventh planetary gear, and an eighth planetary gear, the fifth gear shaft, the sixth gear shaft, the seventh gear shaft, and the eighth gear shaft are fixedly connected to the centers of the fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear, respectively, and the second output shaft is fixed at the center of the bottom surface of the second gear rack.
[0013] Furthermore, the first reduction structure also includes an output bearing, a pion and a retaining spring. The output bearing is arranged on the second output shaft and is fixed by the pion and the retaining spring.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The motor of the utility model is provided with output shafts at both ends, which can drive the transmission mechanisms at both sides to realize bidirectional output when in use, and the output shaft at the rear end of the motor realizes deceleration output through the deceleration mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall principle structure of an embodiment of the utility model;
[0017] Figure 2 It is a schematic diagram of the explosion structure of the first reducer in an embodiment of the utility model.
[0018] Description of reference numerals:
[0019] 1-motor body; 2-first output shaft; 3-rear end extension shaft; 4-first reducer; 5-second output shaft; 41-housing; 42-first reduction structure; 43-second reduction structure; 44-inner ring gear; 45-connecting front cover; 46-fixing rear cover; 47-output bearing; 48-meson; 49-circlip; 421-first main gear; 422-first planetary gear set; 423-first gear rack; 431-second main gear; 432-second planetary gear set; 433-second gear rack. DETAILED DESCRIPTION
[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.
[0023] like Figure 1As shown, the utility model provides a coaxial dual-output motor, comprising: a motor body 1, a first output shaft 2, a rear end extension shaft 3, a first reducer 4 and a second output shaft 5, the first output shaft 2 extends from the front end center of the motor body 1, and serves as the front end output shaft of the motor, the rear end extension shaft 3 extends from the rear end center of the motor body 1, and the protruding end of the rear end extension shaft 3 is fixedly connected to the input end of the first reducer 4, and the second output shaft 5 is arranged at the output end of the first reducer 4, and serves as the rear end output shaft of the motor.
[0024] It should be noted that output shafts are provided at both ends of the motor. When in use, they can drive the transmission mechanisms on both sides to achieve two-way output. The output shaft at the rear end of the motor achieves reduced output through a reduction mechanism.
[0025] The motor body 1 generally includes a motor housing and a stator coil and a rotor core located inside the motor housing.
[0026] In one embodiment of the present invention, the first reducer 4 includes a cylindrical housing 41 , and a first reduction structure 42 and a second reduction structure 43 located inside the housing 41 .
[0027] It should be noted that if Figure 2 As shown, the rear end extension shaft 3 extends from the rear shell of the motor body 1 and is connected to the first reduction mechanism. The first reduction structure 42 and the second reduction structure 43 are arranged inside the outer shell 41. The output end of the second reduction structure 43 is connected to the second output shaft 5. The output shaft at the rear end of the motor realizes two-stage reduction through the first reduction structure 42 and the second reduction structure 43, thereby realizing the reduction output control of the second output shaft 5.
[0028] In one embodiment of the present invention, the first reducer 4 further includes a connecting front cover 45 located at the front end of the housing 41 and a fixed rear cover 46 located at the rear end of the housing 41 .
[0029] It should be noted that if Figure 2 As shown, circular holes are provided in the centers of the connecting front cover 45 and the fixed rear cover 46, so that the input end of the first deceleration structure 42 can extend through the hole to connect with the connecting front cover 45 and the rear end extension shaft 3, and the second output shaft 5 can extend through the hole to the fixed rear cover 46 and the output end of the second deceleration structure 43. The front end of the housing 41 has a surrounding through hole, and the outer wall of the connecting front cover 45 is surrounded by threaded holes corresponding to the through holes. Screws are passed through the through holes and fixed to the threaded holes to fix the connecting front cover 45 and the outer wall. Similarly, the fixed rear cover 46 and the outer wall are also fixedly connected by screws.
[0030] In one embodiment of the present invention, an annular inner gear ring 44 is provided on the inner wall of the housing 41 .
[0031] It should be noted that the annular inner gear ring 44 is used to cooperate with the first deceleration structure 42 and the second deceleration structure 43 to achieve a two-stage deceleration effect.
[0032] In one embodiment of the utility model, the first reduction structure 42 includes a first main gear 421 and a first planetary gear set 422, the first planetary gear set 422 includes a first planetary gear, a second planetary gear, a third planetary gear, and a fourth planetary gear, the rear end extension shaft 3 passes through the middle of the connecting front cover 45, and is fixedly connected to the center of one end of the first main gear 421, the other end of the first main gear 421 is respectively meshed with the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear, the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear are arranged around the first main gear 421, and the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear are also respectively meshed with the inner ring gear 44.
[0033] It should be noted that if Figure 2 As shown, when the first main gear 421 rotates, it will drive the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear to rotate. At the same time, since the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear are also respectively engaged with the inner gear ring 44, driven by their own rotation, the first planetary gear, the second planetary gear, the third planetary gear, and the fourth planetary gear will also revolve on the inner wall of the outer shell 41 along the inner gear ring 44.
[0034] In one embodiment of the utility model, the first reduction structure 42 also includes a first gear rack 423, on which a first gear shaft, a second gear shaft, a third gear shaft and a fourth gear shaft are provided, and the first gear shaft, the second gear shaft, the third gear shaft and the fourth gear shaft are fixedly connected to the centers of the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear, respectively, so that the first gear rack 423 rotates with the revolution of the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear.
[0035] It should be noted that if Figure 2 As shown, when the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear revolve, the first gear frame 423 is driven to rotate. Since the speed of the revolution along the inner gear ring 44 is lower than the speed of the first main gear 421, the first stage of reduction is achieved.
[0036] In one embodiment of the utility model, the second reduction structure 43 includes a second main gear 431 and a second planetary gear set 432, the second planetary gear set 432 includes a fifth planetary gear, a sixth planetary gear, a seventh planetary gear, and an eighth planetary gear, the bottom of the second main gear 431 is fixed to the center of the bottom surface of the first gear rack 423, the fifth planetary gear, the sixth planetary gear, the seventh planetary gear and the eighth planetary gear are arranged around the second main gear 431 and meshed with the second main gear 431, and the fifth planetary gear, the sixth planetary gear, the seventh planetary gear and the eighth planetary gear are also meshed with the inner ring 44 respectively.
[0037] It should be noted that if Figure 2 As shown, the second main gear 431 is fixed to the first gear frame 423, and will rotate with the first gear frame 423 to realize the transmission between the two-stage reduction mechanism. When the second main gear 431 rotates, it will drive the fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear to rotate accordingly. At the same time, since the fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear are also respectively engaged with the inner gear ring 44, driven by their own rotation, the fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear will also revolve on the inner wall of the outer shell 41 along the inner gear ring 44.
[0038] In one embodiment of the utility model, the second reduction structure 43 also includes a second gear rack 433, and the first gear rack 423 is provided with a fifth gear shaft, a sixth gear shaft, a seventh gear shaft and an eighth gear shaft, and the fifth gear shaft, the sixth gear shaft, the seventh gear shaft and the eighth gear shaft are respectively fixedly connected to the centers of the fifth planetary gear, the sixth planetary gear, the seventh planetary gear and the eighth planetary gear, and the second output shaft 5 is fixed at the center of the bottom surface of the second gear rack 433.
[0039] It should be noted that if Figure 2 As shown, when the fifth planetary gear, the sixth planetary gear, the seventh planetary gear, and the eighth planetary gear revolve, the second gear rack 433 will be driven to rotate. At the same time, the second output shaft 5 will rotate along with the rotation of the second gear rack 433, thereby realizing a two-stage reduction output at the rear end of the motor.
[0040] In an embodiment of the present utility model, the first deceleration structure 42 further includes an output bearing 47 , a pion 48 and a retaining spring 49 . The output bearing 47 is disposed on the second output shaft 5 and fixed by the pion 48 and the retaining spring 49 .
[0041] It should be noted that if Figure 2 As shown, the pion 48 and the retaining spring 49 can effectively fix the output bearing 47 on the second output shaft 5 .
[0042] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A coaxial dual-output motor, characterized in that: include: A motor body (1), a first output shaft (2), a rear end extension shaft (3), a first reducer (4) and a second output shaft (5), wherein the first output shaft (2) extends from the front end center of the motor body (1) and serves as the front end output shaft of the motor, the rear end extension shaft (3) extends from the rear end center of the motor body (1), the extended end of the rear end extension shaft (3) is fixedly connected to the input end of the first reducer (4), and the second output shaft (5) is arranged at the output end of the first reducer (4) and serves as the rear end output shaft of the motor.
2. The coaxial dual-output motor according to claim 1, characterized in that: The motor body (1) comprises a motor housing and a stator coil and a rotor core located inside the motor housing.
3. The coaxial dual-output motor according to claim 1, characterized in that: The first reducer (4) comprises a cylindrical outer shell (41), and a first reduction structure (42) and a second reduction structure (43) located inside the outer shell (41).
4. The coaxial dual-output motor according to claim 3, characterized in that: The first reducer (4) further comprises a connecting front cover (45) located at the front end of the housing (41) and a fixed rear cover (46) located at the rear end of the housing (41).
5. The coaxial dual-output motor according to claim 4, characterized in that: An annular inner gear ring (44) is provided on the inner wall of the outer shell (41).
6. The coaxial dual-output motor according to claim 5, characterized in that: The first reduction structure (42) comprises a first main gear (421) and a first planetary gear set (422); the first planetary gear set (422) comprises a first planetary gear, a second planetary gear, a third planetary gear and a fourth planetary gear; the rear end extension shaft (3) passes through the middle of the connection front cover (45) and is fixedly connected to the center of one end of the first main gear (421); the other end of the first main gear (421) is respectively meshed with the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear; the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear are arranged around the first main gear (421); and the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear are also respectively meshed with the inner gear ring (44).
7. The coaxial dual-output motor according to claim 6, characterized in that: The first reduction structure (42) also includes a first gear frame (423), on which a first gear shaft, a second gear shaft, a third gear shaft and a fourth gear shaft are arranged, and the first gear shaft, the second gear shaft, the third gear shaft and the fourth gear shaft are respectively fixedly connected to the centers of the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear, so that the first gear frame (423) rotates with the revolution of the first planetary gear, the second planetary gear, the third planetary gear and the fourth planetary gear.
8. The coaxial dual-output motor according to claim 7, characterized in that: The second reduction structure (43) comprises a second main gear (431) and a second planetary gear set (432); the second planetary gear set (432) comprises a fifth planetary gear, a sixth planetary gear, a seventh planetary gear and an eighth planetary gear; the bottom of the second main gear (431) is fixed at the center of the bottom surface of the first gear frame (423); the fifth planetary gear, the sixth planetary gear, the seventh planetary gear and the eighth planetary gear are arranged around the second main gear (431) and mesh with the second main gear (431); the fifth planetary gear, the sixth planetary gear, the seventh planetary gear and the eighth planetary gear are also respectively meshed with the inner gear ring (44).
9. The coaxial dual-output motor according to claim 8, characterized in that: The second reduction structure (43) also includes a second gear frame (433), and the first gear frame (423) is provided with a fifth gear shaft, a sixth gear shaft, a seventh gear shaft and an eighth gear shaft, and the fifth gear shaft, the sixth gear shaft, the seventh gear shaft and the eighth gear shaft are respectively fixedly connected to the center of the fifth planetary gear, the sixth planetary gear, the seventh planetary gear and the eighth planetary gear, and the second output shaft (5) is fixed at the center of the bottom surface of the second gear frame (433).
10. The coaxial dual-output motor according to claim 9, characterized in that: The first deceleration structure (42) further comprises an output bearing (47), a meson (48) and a retaining spring (49); the output bearing (47) is arranged on the second output shaft (5) and is fixed by the meson (48) and the retaining spring (49).