CN218267044U - Rotary planetary reduction driving device for electric excavator - Google Patents
Rotary planetary reduction driving device for electric excavator Download PDFInfo
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- CN218267044U CN218267044U CN202222051739.8U CN202222051739U CN218267044U CN 218267044 U CN218267044 U CN 218267044U CN 202222051739 U CN202222051739 U CN 202222051739U CN 218267044 U CN218267044 U CN 218267044U
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Abstract
The utility model discloses a revolving planet speed reduction driving device for an electric excavator, which comprises a motor part and a speed reduction gear box part, wherein the motor part comprises a machine barrel and a motor shaft; the motor part and the reduction gear box part are connected through a motor gear box connecting plate, and the motor gear box connecting plate is connected with the machine barrel through a bolt; the speed reduction gear box part comprises a primary planetary speed reduction mechanism, a secondary planetary speed reduction mechanism and a gear ring, the gear ring is connected with the motor gear box connecting plate through bolts, and the primary planetary speed reduction mechanism and the secondary planetary speed reduction mechanism are both arranged inside the gear ring; the front end of the reduction gear box part is connected with an output connecting flange through a bolt, an output shaft of the reduction gear box part penetrates through the output connecting flange, and the front end part of the reduction gear box part is connected with an output shaft gear. The utility model overcomes prior art shortcoming, permanent-magnet machine is efficient, compact structure is small, speed is adjustable, energy-concerving and environment-protective, and is with low costs.
Description
Technical Field
The utility model relates to the technical field, specifically indicate electronic for digging machine gyration planet speed reduction drive arrangement.
Background
The power of the excavator rotation speed reducer in the current market is a set of hydraulic oil pump driving system, and the hydraulic system mainly comprises: the hydraulic system consists of five parts, namely a power element (an oil pump), an actuating element (an oil cylinder or a hydraulic motor), a control element (various valves), an auxiliary element, a working medium and the like. 1. A power element (oil pump) for converting mechanical energy of the prime mover into hydraulic pressure energy by using a liquid; is the power part in the hydraulic transmission. 2. And the actuating element (oil cylinder and hydraulic motor) converts the hydraulic energy of the liquid into mechanical energy. Wherein, the oil cylinder makes linear motion, and the motor makes rotary motion. 3. And the control elements comprise a pressure valve, a flow valve, a directional valve and the like. The functions of the hydraulic system and the hydraulic motor are to steplessly adjust the speed of the hydraulic motor according to requirements and adjust and control the pressure, flow and flow direction of working fluid in the hydraulic system. 4. The auxiliary components, other than the above three parts, include pressure gauge, oil filter, energy storage device, cooler, various pipe joints (flared, welded, and sleeve type), high-pressure ball valve, quick-change joint, hose assembly, pressure measuring joint, pipe clamp, etc., and oil tank, etc., which are also very important. 5. The working medium refers to hydraulic oil or emulsion in various hydraulic transmissions, and energy conversion is realized through an oil pump and a hydraulic motor.
The hydraulic oil pump driving system has the following problems: 1. the hydraulic driving system has a complex structure; 2. the cost is high; 3. the installation operation requirement is high; 4. the weight of the whole machine is increased, and energy is not saved; 5. the system operation efficiency is low; 6. the whole machine has poor operation comfort, so the improvement is needed urgently aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art shortcoming, provide an electric excavator is with gyration planet speed reduction drive arrangement, permanent-magnet machine is efficient, compact structure is small, speed is adjustable, energy-concerving and environment-protective, and is with low costs.
In order to solve the technical problem, the utility model provides a technical scheme does: the rotary planetary reduction driving device for the electric excavator comprises a motor part and a reduction gear box part, wherein the motor part comprises a machine barrel and a motor shaft, the motor shaft is arranged at the center inside the machine barrel, a motor rotor is arranged on the motor shaft, a motor stator coil is arranged on the inner wall of the machine barrel, and the motor stator coil is arranged on the circumferential outer side of the motor rotor;
the motor part and the reduction gear box part are connected through a motor gear box connecting plate, and the motor gear box connecting plate is connected with the machine barrel through a bolt;
the speed reduction gear box part comprises a primary planetary speed reduction mechanism, a secondary planetary speed reduction mechanism and a gear ring, the gear ring is connected with the motor gear box connecting plate through bolts, and the primary planetary speed reduction mechanism and the secondary planetary speed reduction mechanism are both arranged inside the gear ring;
the front end of the reduction gear box part is connected with an output connecting flange through a bolt, an output shaft of the reduction gear box part penetrates through the output connecting flange, and the front end part of the reduction gear box part is connected with an output shaft gear.
Furthermore, the rear end of the machine barrel is connected with a motor rear end cover through a bolt, and an end cover bearing is installed between the motor rear end cover and the rear end of the motor shaft in a matched mode.
Furthermore, the output shaft gear is connected to the front end in a matched mode through an output shaft flat key, a compression gasket is arranged at the end portion of the output shaft of the reduction gear box portion and used for locking the output shaft gear, and the compression gasket is fixed through a compression screw.
Further, a motor gear box connecting plate bearing and a motor gear box connecting plate oil seal are installed between the motor shaft and the motor gear box connecting plate in a matched mode, and the motor gear box connecting plate oil seal is arranged on one side of the motor gear box connecting plate bearing.
Further, one-level planetary reduction gears includes the one-level sun gear, the front end splined connection one-level sun gear of motor shaft, the one-level sun gear is connected with three one-level planetary gear at its circumference meshing, one-level planetary gear passes through one-level planetary gear bearing and rotates the connection on one-level planet carrier, one-level planetary gear evenly sets up on one-level planet carrier, the inboard tooth of ring gear is connected in the meshing simultaneously of one-level planetary gear, the central point splined connection of one-level planet carrier is in the rear end that the integral key shaft was connected to the planet carrier.
Further, second grade planetary reduction gears includes the second grade sun gear, second grade sun gear splined connection is in the anterior of planet carrier connection integral key shaft, the second grade sun gear is connected with three second grade planetary gear at its circumference meshing, the second grade planetary gear passes through second grade planetary gear bearing and rotates the connection on the second grade planet carrier, the second grade planetary gear evenly sets up on the second grade planet carrier, the inboard tooth of ring gear is connected in the meshing simultaneously to the second grade planetary gear, the forward extension axle of center department of second grade planet carrier is the output shaft of reduction gear box part.
Furthermore, the planet carrier is connected with the spline shaft and is rotatably connected in a rear end concave hole of the second-stage planet carrier, and a second-stage planet carrier bearing is installed between the planet carrier and the front end of the spline shaft in a matched mode.
Furthermore, a connecting flange bearing and a connecting flange oil seal are installed between the extension shaft of the secondary planet carrier and the output connecting flange in a matched mode, and the connecting flange bearing is arranged on one side of the connecting flange oil seal.
Compared with the prior art, the utility model the advantage lie in: the utility model provides a hydraulic oil pump actuating system problem with high costs to solve the complicated problem of installation operation, whole device lightweight alleviates complete machine weight, improves system operation efficiency, plays energy-conserving effect.
The device has the advantages of high comprehensive efficiency, light weight, simple installation and use, energy conservation, comfortable operation, low cost and adjustable speed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
As shown in the figure: 1. a motor rear end cover; 2. a motor stator coil; 3. a motor rotor; 4. an end cap bearing; 5. a motor shaft; 6. a barrel; 7. a motor gear box connecting plate; 8. a primary planetary gear; 9. a primary planet gear bearing; 10. a primary planet carrier; 11. a ring gear; 12. the motor gear box is connected with a plate bearing; 13. an oil seal of a connecting plate of the motor gear box; 14. a primary sun gear; 15. the planet carrier is connected with a spline shaft; 16. a secondary planetary gear; 17. a secondary planet gear bearing; 18. a secondary planet carrier; 19. a secondary sun gear; 20. a secondary planet carrier bearing; 21. an output connection flange; 22. connecting a flange bearing; 23. connecting a flange oil seal; 24. an output shaft flat key; 25. an output shaft gear; 26. compressing the gasket; 27. and a compression screw.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses when concrete implementation, provide and dig quick-witted rotating system with PMSM planet speed reduction and automatically controlled drive to and be used in the integration of motor and two-stage planetary reducer on the electronic machine of digging.
Specifically, as shown in fig. 1: electronic dig machine gyration planet speed reduction drive arrangement, including motor part and reduction gear box part, the motor part includes barrel 6 and motor shaft 5, and motor shaft 5 sets up in 6 inside centers of barrel, and there is motor rear end cap 1 rear end department through bolted connection at barrel 6, and the cooperation is installed between motor rear end cap 1 and the 5 rear ends of motor shaft and is had end cover bearing 4. A motor rotor 3 is arranged on the motor shaft 5, a motor stator coil 2 is arranged on the inner wall of the machine barrel 6, and the motor stator coil 2 is arranged on the circumferential outer side of the motor rotor 3;
the motor part and the reduction gear box part are connected through a motor gear box connecting plate 7, and the motor gear box connecting plate 7 is connected with the machine barrel 6 through a bolt; a motor gear box connecting plate bearing 12 and a motor gear box connecting plate oil seal 13 are installed between the motor shaft 5 and the motor gear box connecting plate 7 in a matched mode, and the motor gear box connecting plate oil seal 13 is arranged on one side of the motor gear box connecting plate bearing 12.
The reduction gear box part comprises a primary planetary reduction mechanism, a secondary planetary reduction mechanism and a gear ring 11, the gear ring 11 is connected with the motor gear box connecting plate 7 through bolts, and the primary planetary reduction mechanism and the secondary planetary reduction mechanism are both arranged inside the gear ring 11;
the front end of the reduction gear box part is connected with an output connecting flange 21 through a bolt, an output shaft of the reduction gear box part penetrates through the output connecting flange 21, the front end part of the reduction gear box part is connected with an output shaft gear 25, the output shaft gear 25 is connected to the front end through an output shaft flat key 24 in a matched mode, a compression gasket 26 is arranged at the end part of the output shaft of the reduction gear box part and used for locking the output shaft gear 25, and the compression gasket 26 is fixed through a compression screw 27.
The planet deceleration part: one-level planet reduction gears includes one-level sun gear 14, the front end splined connection one-level sun gear 14 of motor shaft 5, one-level sun gear 14 is connected with three one-level planetary gear 8 at its circumference meshing, one-level planetary gear 8 rotates through one-level planetary gear bearing 9 and connects on one-level planet carrier 10, one-level planetary gear 8 evenly sets up on one-level planet carrier 10, the inboard tooth of ring gear 11 is connected in the meshing simultaneously of one-level planetary gear 8, the central point splined connection of one-level planet carrier 10 is in the rear end that the integral key shaft 15 is connected to the planet carrier.
Second grade planet reduction gears includes second grade sun gear 19, second grade sun gear 19 splined connection is in planet carrier connection integral key shaft 15's front portion, second grade sun gear 19 is connected with three second grade planetary gear 16 at its circumference meshing, second grade planetary gear 16 rotates through second grade planet gear bearing 17 and connects on second grade planet carrier 18, second grade planetary gear 16 evenly sets up on second grade planet carrier 18, the inboard tooth of ring gear 11 is connected in the meshing simultaneously to second grade planetary gear 16, planet carrier connection integral key shaft 15 rotates to be connected in the rear end concave hole of second grade planet carrier 18, and the planet carrier is connected and is installed second grade planet carrier bearing 20 between integral key shaft 15 front end and the second grade planet carrier 18 in the cooperation. The forward extending shaft at the center of the secondary planet carrier 18 is the output shaft of the reduction gearbox section.
And a connecting flange bearing 22 and a connecting flange oil seal 23 are arranged between the extending shaft of the secondary planet carrier 18 and the output connecting flange 21 in a matching way, and the connecting flange bearing 22 is arranged on one side of the connecting flange oil seal 23. The device is characterized in that power is output to a rotary actuating mechanism of the excavator after being increased through two-stage planetary reduction torque through a permanent magnet synchronous motor.
This device is in the in-service use in-process, lid 1 is connected with barrel 6 with the bolt behind the motor, and reuse bolt connects motor gear box connecting plate 7, has just so combined motor part and gear box part together, and the motor part is by: the motor comprises a motor stator coil 2, a motor rotor 3, a bearing 4, a motor shaft 5, a motor gear box connecting plate 7, a motor gear box connecting plate oil seal 13 and the like.
The planetary reduction part: the output spline of motor shaft 5 is connected with sun gear 14, sun gear 14 meshes with 3 three one-level planet wheel 8 of installing on one-level planet carrier 10, three one-level planet wheel 8 meshes with ring gear 11, planet carrier connection spline shaft 15 connects one-level planet carrier 10 and second grade sun gear 19, three second grade planetary gear 16 and ring gear 11 meshing on second grade sun gear 19 and the second grade planet carrier 18 will accomplish the secondary speed reduction of power, then will install output gear 25 and will give actuating mechanism with the power transmission after slowing down through fixing on the second grade planet carrier 18 on output flange 21.
The present invention and its embodiments have been described above, but the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (8)
1. Electric excavator is with gyration planet speed reduction drive arrangement, including motor part and reduction gear box part, its characterized in that: the motor part comprises a machine barrel (6) and a motor shaft (5), the motor shaft (5) is arranged at the center inside the machine barrel (6), a motor rotor (3) is arranged on the motor shaft (5), a motor stator coil (2) is arranged on the inner wall of the machine barrel (6), and the motor stator coil (2) is arranged on the outer side of the motor rotor (3) in the circumferential direction;
the motor part and the reduction gear box part are connected through a motor gear box connecting plate (7), and the motor gear box connecting plate (7) is connected with the machine barrel (6) through a bolt;
the speed reduction gear box part comprises a primary planetary speed reduction mechanism, a secondary planetary speed reduction mechanism and a gear ring (11), the gear ring (11) is connected with the motor gear box connecting plate (7) through bolts, and the primary planetary speed reduction mechanism and the secondary planetary speed reduction mechanism are both arranged inside the gear ring (11);
the front end of the reduction gear box part is connected with an output connecting flange (21) through a bolt, an output shaft of the reduction gear box part penetrates through the output connecting flange (21), and the front end part of the reduction gear box part is connected with an output shaft gear (25).
2. The slewing planetary reduction drive apparatus for an electric excavator according to claim 1, wherein: the rear end department of barrel (6) has motor rear end housing (1) through bolted connection, cooperate between motor rear end housing (1) and motor shaft (5) the rear end to install end cover bearing (4).
3. The slewing planetary reduction drive apparatus for an electric excavator according to claim 1, wherein: the output shaft gear (25) is connected to the front end of the output shaft gear in a matched mode through an output shaft flat key (24), a compression gasket (26) is arranged at the end portion of the output shaft of the reduction gear box portion and used for locking the output shaft gear (25), and the compression gasket (26) is fixed through a compression screw (27).
4. The slewing planetary reduction drive apparatus for an electric excavator according to claim 1, wherein: a motor gear box connecting plate bearing (12) and a motor gear box connecting plate oil seal (13) are installed between the motor shaft (5) and the motor gear box connecting plate (7) in a matched mode, and the motor gear box connecting plate oil seal (13) is arranged on one side of the motor gear box connecting plate bearing (12).
5. The slewing planetary reduction drive apparatus for an electric excavator according to claim 1, wherein: one-level planet reduction gears includes one-level sun gear (14), the front end splined connection of motor shaft (5) one-level sun gear (14), one-level sun gear (14) are connected with three one-level planetary gear (8) at its circumference meshing, one-level planetary gear (8) rotate through one-level planet gear bearing (9) and connect on one-level planet carrier (10), one-level planetary gear (8) evenly set up on one-level planet carrier (10), the inboard tooth of ring gear (11) is connected in one-level planetary gear (8) meshing simultaneously, the center of one-level planet carrier (10) is located the splined connection at the rear end that the integral key shaft (15) was connected to the planet carrier.
6. The slewing planetary reduction drive apparatus for an electric excavator according to claim 5, wherein: second grade planetary reduction mechanism includes second grade sun gear (19), second grade sun gear (19) splined connection is in the front portion of planet carrier connection integral key shaft (15), second grade sun gear (19) are connected with three second grade planetary gear (16) at its circumference meshing, second grade planetary gear (16) rotate through second grade planet gear bearing (17) and connect on second grade planet carrier (18), second grade planetary gear (16) evenly set up on second grade planet carrier (18), the inboard tooth of ring gear (11) is connected in second grade planetary gear (16) meshing simultaneously, the forward extension axle of center department of second grade planet carrier (18) is the output shaft of reduction gear box part.
7. The slewing planetary reduction drive apparatus for an electric excavator according to claim 6, wherein: the planet carrier is connected spline shaft (15) and is rotated and connect in the rear end concave hole of second grade planet carrier (18), and planet carrier connection spline shaft (15) front end and second grade planet carrier (18) between the cooperation install second grade planet carrier bearing (20).
8. The rotary planetary reduction drive apparatus for an electric shovel according to claim 7, wherein: a connecting flange bearing (22) and a connecting flange oil seal (23) are arranged between an extending shaft of the secondary planet carrier (18) and the output connecting flange (21) in a matching mode, and the connecting flange bearing (22) is arranged on one side of the connecting flange oil seal (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222051739.8U CN218267044U (en) | 2022-08-05 | 2022-08-05 | Rotary planetary reduction driving device for electric excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222051739.8U CN218267044U (en) | 2022-08-05 | 2022-08-05 | Rotary planetary reduction driving device for electric excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218267044U true CN218267044U (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222051739.8U Active CN218267044U (en) | 2022-08-05 | 2022-08-05 | Rotary planetary reduction driving device for electric excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218267044U (en) |
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2022
- 2022-08-05 CN CN202222051739.8U patent/CN218267044U/en active Active
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