CN219734107U - Built-in motor planetary reduction mechanism - Google Patents
Built-in motor planetary reduction mechanism Download PDFInfo
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- CN219734107U CN219734107U CN202320861885.9U CN202320861885U CN219734107U CN 219734107 U CN219734107 U CN 219734107U CN 202320861885 U CN202320861885 U CN 202320861885U CN 219734107 U CN219734107 U CN 219734107U
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- shaft
- motor
- shell
- mounting groove
- end cover
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- 238000009434 installation Methods 0.000 claims description 7
- 238000002788 crimping Methods 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010862 gear shaping Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The utility model relates to the technical field of machine tool equipment, in particular to a built-in motor planetary reduction mechanism, which comprises a shell, wherein the inside of the shell is of a hollow structure, a front end cover and a rear end cover are respectively arranged on two opposite sides of the outer surface of the shell, and opposite surfaces of the front end cover and the rear end cover are respectively communicated with the inner wall of the shell; the front end cover is provided with a first-stage mounting groove and a second-stage mounting groove which are symmetrically arranged on the opposite sides of the end face of the front end cover, the second-stage mounting groove faces the shell, through holes are formed in the central axes of the first-stage mounting groove and the second-stage mounting groove, and an inner gear ring is arranged on the inner wall of each through hole; an output shaft is arranged in the first-stage mounting groove, and a first-stage stepped shaft and a second-stage stepped shaft are sequentially arranged in the through hole from one end of the output shaft; according to the utility model, the planetary reduction mechanism is arranged in the shell of the motor, so that the occupied area of the motor and the reduction mechanism in the using process can be reduced, and the planetary reduction mechanism is convenient to install on a small-sized precision machining station for use.
Description
Technical Field
The utility model relates to the technical field of machine tool equipment, in particular to a built-in motor planetary reduction mechanism.
Background
The speed of a standard motor on a general machine tool is higher, the adaptive rotating speed of cutting is lower, and the rotating speed is usually reduced in an electric control mode so as to meet the requirement of metal cutting; however, in the deceleration mode, the torque is correspondingly reduced, so that the cutting capability is reduced; for this reason, a reduction mechanism is mostly adopted at present to reduce the speed of an output shaft of a motor, but the existing reduction mechanism is too large in size and is difficult to be installed on a small-sized precision machining station together with the motor for use.
Disclosure of Invention
The utility model aims to provide a built-in motor planetary reduction mechanism, which mainly solves the technical problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a concealed motor planetary reduction gears, includes the casing, the inside of casing is hollow structure, front end housing and rear end housing are installed respectively to the surface opposite both sides of casing, the front end housing with the opposite face of rear end housing communicates with the inner wall of casing respectively;
the front end cover is characterized in that a first-stage mounting groove and a second-stage mounting groove are symmetrically arranged on opposite sides of the end face of the front end cover respectively, the second-stage mounting groove faces the shell, through holes are formed in central axes of the first-stage mounting groove and the second-stage mounting groove, and an inner gear ring is arranged on the inner wall of each through hole;
an output shaft is arranged in the primary mounting groove, a primary stepped shaft and a secondary stepped shaft are sequentially arranged in the through hole after one end of the output shaft extends into the through hole, and the end part of the secondary stepped shaft extends into the secondary mounting groove and is flush with the end part of the front end cover;
a motor shaft is sleeved on the secondary stepped shaft, the other end of the motor shaft is connected with the rear end cover, a sun gear is arranged on the outer surface of the motor shaft, a plurality of planetary gears are uniformly arranged between the sun gear and the inner gear ring in a ring shape, planetary gear shafts are respectively arranged on the inner walls of the planetary gears, one end of each planetary gear shaft penetrates through the outer surface of the output shaft, and the outer surface of each planetary gear shaft is connected with the inner wall of the output shaft;
the outer surface of the motor shaft is sequentially sleeved with a rotor and a stator from inside to outside, and the stator is electrically connected with an external power supply.
Preferably, at least one secondary bearing is arranged between the secondary stepped shaft and the motor shaft.
Preferably, a locking check ring is arranged at the end part of the output shaft through a locking screw, and the locking check ring is used for crimping the secondary bearing on the installation table surface of the secondary stepped shaft.
Preferably, two opposite sides of the outer surface of the motor shaft are respectively connected with the inner wall of the shell and the side wall of the secondary installation groove through primary bearings.
Preferably, the first-stage stepped shaft is provided with a hole elastic check ring, and the hole elastic check ring is positioned at the end part of the motor shaft and used for elastically limiting the motor shaft.
Preferably, one end of the shell is provided with a mounting seat, and the mounting seat is of a cylindrical structure and is used for connecting the stator with an external power supply through a penetrating lead.
Preferably, one end of the motor shaft, which is far away from the sun gear, is rotationally connected with the rear end cover through a coding disc.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the planetary reduction mechanism is arranged in the shell of the motor, so that the occupied area of the motor and the reduction mechanism in the using process can be reduced, and the planetary reduction mechanism is convenient to install on a small-sized precision machining station for use.
2. In the utility model, the output shaft can buffer the high-speed rotation force of the motor shaft through a plurality of planetary gears in the rotation process, so that the rotation speed of the motor shaft is reduced, the torque of the output shaft is increased proportionally, the output rotation speed is stabilized, the cutting geometric precision and the roughness are increased, and the performance of the machine tool is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a built-in motor planetary reduction mechanism of the present utility model;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1 in accordance with the present utility model;
FIG. 3 is an enlarged view of the portion B of FIG. 1 in accordance with the present utility model;
FIG. 4 is a schematic view of the structure of the output shaft of FIG. 1 according to the present utility model;
in the figure: 1. the device comprises a shell, 2, a front end cover, 21, a first-stage mounting groove, 22, a second-stage mounting groove, 3, a rear end cover, 4, an inner gear ring, 5, a motor shaft, 6, a first-stage bearing, 7, a rotor, 8, a stator, 9, a locking screw, 10, a locking check ring, 11, an output shaft, 12, a second-stage bearing, 13, a hole elastic check ring, 14, a planetary gear shaft, 15, a planetary gear, 16, a sun gear, 17, a coding disc, 18, a mounting seat, 19, a first-stage stepped shaft, 20 and a second-stage stepped shaft.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-4, the utility model provides a built-in motor planetary reduction mechanism, which comprises a shell 1, wherein the interior of the shell 1 is of a hollow structure, a front end cover 2 and a rear end cover 3 are respectively and fixedly arranged on two opposite sides of the outer surface of the shell 1, opposite surfaces of the front end cover 2 and the rear end cover 3 are respectively communicated with the inner wall of the shell 1, and the shell 1, the front end cover 2 and the rear end cover 3 are arranged together to form a round table;
the front end cover 2 is symmetrically provided with a first-stage mounting groove 21 and a second-stage mounting groove 22 on opposite sides of the end face, the second-stage mounting groove 22 faces the shell 1, through holes are formed in central axes of the first-stage mounting groove 21 and the second-stage mounting groove 22, and inner gear rings 4 are formed in inner walls of the through holes in a gear shaping mode; the output shaft 11 is rotatably mounted in the primary mounting groove 21, a primary stepped shaft 19 and a secondary stepped shaft 20 are sequentially arranged in the through hole extending from one end of the output shaft 11, and the end part of the secondary stepped shaft 20 extends into the secondary mounting groove 22 and is level with the end part of the front end cover 2;
the first-stage stepped shaft 19 is sleeved with the hole elastic retainer ring 13, the second-stage stepped shaft 20 is sleeved with the motor shaft 5, one end of the motor shaft is propped against the hole elastic retainer ring 13, the other end of the motor shaft 5 is fixedly provided with the coding disc 17 (HT-9001 can be adopted in the model) through bolts, and the coding disc is used for monitoring the running state of the motor shaft 5 and transmitting the monitoring result to a motor controller in real time so as to realize speed regulation and start and stop of the motor shaft 5; the coding disc 17 is rotatably arranged on the rear end cover 3, a sun gear 16 is arranged on the outer surface of the motor shaft 5 and positioned in the through hole, a plurality of planetary gears 15 are uniformly arranged between the sun gear 16 and the inner gear ring 4 in a ring shape, planetary gear shafts 14 are fixedly arranged on the inner walls of the planetary gears 15 respectively through inserting keys, one end of each planetary gear shaft 14 penetrates through the outer surface of the output shaft 11, and the planetary gear shafts 14 are rotatably connected with the output shaft 11; the outer surface of the motor shaft 5 is sequentially sleeved with a rotor 7 and a stator 8 from inside to outside, wherein the stator 8 is fixedly arranged on the inner wall of the shell 1, and the rotor 7 is fixedly arranged on the outer surface of the motor shaft 5.
In the embodiment, the planetary reduction mechanism is arranged in the shell 1 of the motor, so that the occupied area of the motor and the reduction mechanism in the using process can be reduced, and the planetary reduction mechanism is convenient to install on a small-sized precision machining station for use; when the speed reducing mechanism serves as a power unit for cutting machining on a machine tool, firstly, the stator 8 is electrified, induced electromotive force is generated between the stator 8 and the rotor 7 and serves as a rotating magnetic field, the rotor 7 is driven to drive the motor shaft 5 to rotate, then the motor shaft 5 is driven to drive the sun gear 16 to drive the planetary gears 15 to synchronously rotate along the annular gear 4, the planetary gears 15 drive the output shaft 11 to rotate through the planetary gear shafts 14, wherein the high-speed rotating force of the motor shaft 5 can be buffered through the planetary gears 15 in the rotating process of the output shaft 11, the rotating speed of the motor shaft 5 is reduced, the torque of the output shaft 11 is proportionally increased, the output rotating speed is stabilized, the cutting geometric precision and the roughness are increased, and the performance of the machine tool is improved.
Further, a locking check ring 10 is fixedly installed at the end part of the output shaft 11 through a locking screw 9, and the locking check ring 10 is used for crimping the secondary bearing 12 on the installation table surface of the secondary stepped shaft 20 to limit and install the secondary bearing 12.
Further, opposite sides of the outer surface of the motor shaft 5 are respectively rotatably connected with the inner wall of the housing 1 and the side wall of the secondary mounting groove 22 through the primary bearing 6, so as to reduce surface abrasion generated in the rotation process of the motor shaft 5.
Further, an installation seat 18 is fixedly installed at one end of the casing 1, and the installation seat 18 is of a cylindrical structure and is used for connecting the stator 8 and an external power supply by penetrating a lead wire inside.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. A built-in motor planetary reduction mechanism is characterized in that: the novel multifunctional portable electric power tool comprises a shell (1), wherein the interior of the shell (1) is of a hollow structure, a front end cover (2) and a rear end cover (3) are respectively arranged on two opposite sides of the outer surface of the shell (1), and opposite surfaces of the front end cover (2) and the rear end cover (3) are respectively communicated with the inner wall of the shell (1);
a first-stage mounting groove (21) and a second-stage mounting groove (22) are symmetrically arranged on opposite sides of the end face of the front end cover (2), the second-stage mounting groove (22) faces the shell (1), through holes are formed in central axes of the first-stage mounting groove (21) and the second-stage mounting groove (22), and an inner gear ring (4) is arranged on the inner wall of each through hole;
an output shaft (11) is arranged in the primary mounting groove (21), one end of the output shaft (11) extends into the through hole, a primary stepped shaft (19) and a secondary stepped shaft (20) are sequentially arranged in the through hole, and the end part of the secondary stepped shaft (20) extends into the secondary mounting groove (22) and is level with the end part of the front end cover (2);
a motor shaft (5) is sleeved on the secondary stepped shaft (20), the other end of the motor shaft (5) is connected with the rear end cover (3), a sun gear (16) is arranged on the outer surface of the motor shaft (5), a plurality of planetary gears (15) are uniformly arranged between the sun gear (16) and the inner gear ring (4) in a ring shape, planetary gear shafts (14) are respectively arranged on the inner walls of the planetary gears (15), one end of each planetary gear shaft (14) penetrates through the outer surface of the output shaft (11), and the outer surface of each planetary gear shaft (14) is connected with the inner wall of the output shaft (11);
the outer surface of the motor shaft (5) is sequentially sleeved with a rotor (7) and a stator (8) from inside to outside, and the stator (8) is electrically connected with an external power supply.
2. The concealed motor planetary reduction mechanism as claimed in claim 1, wherein: at least one secondary bearing (12) is arranged between the secondary stepped shaft (20) and the motor shaft (5).
3. The concealed motor planetary reduction mechanism as claimed in claim 2, wherein: the end part of the output shaft (11) is provided with a locking check ring (10) through a locking screw (9), and the locking check ring (10) is used for crimping a secondary bearing (12) on the installation table surface of the secondary stepped shaft (20).
4. A concealed motor planetary reduction mechanism according to claim 3, wherein: opposite sides of the outer surface of the motor shaft (5) are respectively connected with the inner wall of the shell (1) and the side wall of the secondary installation groove (22) through primary bearings (6).
5. The concealed motor planetary reduction mechanism as claimed in claim 4, wherein: the primary stepped shaft (19) is provided with a hole elastic check ring (13), and the hole elastic check ring (13) is positioned at the end part of the motor shaft (5) and used for elastically limiting the motor shaft (5).
6. The concealed motor planetary reduction mechanism as claimed in claim 5, wherein: one end of the shell (1) is provided with a mounting seat (18), and the mounting seat (18) is of a cylindrical structure and is used for connecting the stator (8) and an external power supply through a lead wire.
7. The concealed motor planetary reduction mechanism as claimed in claim 1, wherein: one end of the motor shaft (5) far away from the sun gear (16) is rotationally connected with the rear end cover (3) through a coding disc (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320861885.9U CN219734107U (en) | 2023-04-17 | 2023-04-17 | Built-in motor planetary reduction mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320861885.9U CN219734107U (en) | 2023-04-17 | 2023-04-17 | Built-in motor planetary reduction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734107U true CN219734107U (en) | 2023-09-22 |
Family
ID=88059653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320861885.9U Active CN219734107U (en) | 2023-04-17 | 2023-04-17 | Built-in motor planetary reduction mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734107U (en) |
-
2023
- 2023-04-17 CN CN202320861885.9U patent/CN219734107U/en active Active
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