CN217519177U - Gear box for permanent magnet motor convenient to machine - Google Patents
Gear box for permanent magnet motor convenient to machine Download PDFInfo
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- CN217519177U CN217519177U CN202221042228.3U CN202221042228U CN217519177U CN 217519177 U CN217519177 U CN 217519177U CN 202221042228 U CN202221042228 U CN 202221042228U CN 217519177 U CN217519177 U CN 217519177U
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- half disc
- planet
- permanent magnet
- magnet motor
- input shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model particularly relates to a gear box for permanent magnet motor of convenient processing has solved the supporting gear box input shaft spline department of permanent magnet motor and has worn and torn fast, casing assembly process is poor, casting planet carrier casting defect is many and forge the problem that planet carrier machining efficiency is low. A gear box for a permanent magnet motor convenient to process is characterized in that an output shaft of the motor is in splined connection with an input shaft, and two oppositely-arranged oil cups are arranged on the input shaft; the front shell and the inner gear are fixed by welding; the planet carrier comprises a front half disc and a rear half disc which are oppositely arranged, the front half disc and the rear half disc are fixedly connected through a connecting column, and the output shaft is integrally arranged on the rear surface of the rear half disc; two ends of the planet shaft respectively penetrate through the front half disc and the rear half disc. The utility model discloses effectively optimized the processing technology of gear box, conveniently pour into lubricating grease into, avoided the problem of spline wearing and tearing, improved machining efficiency, effectively guaranteed processingquality, be suitable for the semi-direct drive actuating system of permanent magnetism and use in batches.
Description
Technical Field
The utility model relates to a permanent magnetism half directly drives supporting gear box specifically is a gear box for permanent magnet motor of convenient processing.
Background
The permanent-magnet semi-direct-drive driving system is widely applied to the fields of metallurgical mines, hoisting transportation, petrochemical industry, wind power generation, cement industry, building material industry and the like. The permanent magnet semi-direct drive motor has the characteristics of high operating efficiency, light weight, intelligent control and load starting, so that the permanent magnet semi-direct drive motor is more and more widely applied.
However, practice shows that the existing permanent magnet motor matching gearbox has the following problems in application: firstly, the spline of the input shaft of the gear box is not lubricated, so that the phenomena of spline abrasion and sticking of an inner spline and an outer spline are often caused; secondly, the front shell and the internal gear are processed separately and are connected by bolts, so that the process is complex and the cost is high; thirdly, the planet carrier is generally a cast or forged integral planet carrier, wherein the cast planet carrier often has casting defects, and the quality is not ensured; the integrally forged planet carrier has the disadvantages of large machining allowance, complex process and low machining efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the supporting gear box input shaft spline department of current permanent-magnet machine wearing and tearing fast, casing equipment technology is poor, casting planet carrier casting defect is many and forge the problem that planet carrier machining efficiency is low, provide a gear box for permanent-magnet machine of convenient processing.
The utility model discloses an adopt following technical scheme to realize:
a gear box for a permanent magnet motor convenient to process comprises a front shell, a motor output shaft, an input shaft, a sun gear, a planet shaft, a planet gear bearing, a planet carrier, an inner gear and an output shaft; the output shaft of the motor is connected with the input shaft through a spline, and two oppositely-arranged oil cups are arranged on the input shaft; the front shell and the inner gear are fixed by welding; the planet carrier comprises a front half disc and a rear half disc which are oppositely arranged, the front half disc and the rear half disc are fixedly connected through a connecting column, and the output shaft is integrally arranged on the rear surface of the rear half disc; two ends of the planet shaft respectively penetrate through the front half disc and the rear half disc.
Furthermore, the middle part of the front half disc is provided with an I-shaped mounting hole which is through from front to back, and the front end of the sun gear is connected with the rear end of the input shaft through a spline type sleeve coupling arranged in the I-shaped mounting hole.
Furthermore, the number of the planet wheel bearings is two, and spacer sleeves sleeved on the planet shafts are arranged between the front half disc and the planet wheel bearing positioned on the front side, between the rear half disc and the planet wheel bearing positioned on the rear side and between the two planet wheel bearings.
Furthermore, a plurality of front and rear through II mounting holes are formed in the front half disc and the rear half disc, the front ends of the planet shafts are mounted in the II mounting holes of the front half disc and the II mounting holes of the rear half disc in a one-to-one correspondence manner, and the planet shafts are in interference fit or transition fit with the II mounting holes.
Furthermore, the front end part of the input shaft is provided with an installation groove with an internal spline, the motor output shaft penetrates through the installation groove, the oil cup is in threaded connection with the side wall of the input shaft, and the inner cavity of the oil cup is communicated with the installation groove.
Furthermore, the connecting column consists of a middle column section, a front column section penetrating through the front half disc and a rear column section penetrating through the rear half disc, and the diameter of the front column section and the diameter of the rear column section are both smaller than the diameter of the middle column section; the preceding tip of preceding column segment, the rear end of back column segment all are the toper, and two the toper portion corresponds welded fastening with preceding half dish, latter half dish.
Furthermore, the front half disc, the rear half disc and the connecting column are all processed by adopting a forging process.
The utility model has the advantages of reasonable design reliably, the processing technology of gear box has effectively been optimized, and conveniently pour into lubricating grease into, the spline connection department spline wearing and tearing of motor output shaft and input shaft have been avoided, the dead problem of internal and external spline bonding, the equipment simple operation simultaneously, the machining efficiency is improved, the processing cost is reduced, furthermore, the planet carrier adopts the components of a whole that can function independently processing mode, casting and solid forging's technology has been saved, machining quality has effectively been guaranteed, and convenient maintenance has, the practicality is strong, be suitable for half driving system of directly driving of permanent magnetism and support the use in batches.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic structural view of the carrier of fig. 1.
In the figure, 1-front machine shell, 2-rear machine shell, 3-motor output shaft, 4-input shaft, 5-sun gear, 6-planet gear, 7-planet shaft, 8-planet gear bearing, 9-internal gear, 10-output shaft, 11-oil cup, 12-front half disc, 13-rear half disc, 14-connecting column, 15-I mounting hole, 16-spline sleeve coupling, 17-spacer bush, 18-II mounting hole, 19-mounting groove, 20-front planet carrier supporting bearing, 21-rear planet carrier supporting bearing, 22-bolt, 23-input bearing cover, 24-input bearing and 25-output bearing cover.
Detailed Description
A gear box for a permanent magnet motor convenient to process is shown in attached figures 1 and 2 and comprises a front machine shell 1, a motor output shaft 3, an input shaft 4, a sun gear 5, a planet gear 6, a planet shaft 7, a planet gear bearing 8, a planet carrier, an internal gear 9 and an output shaft 10; the motor output shaft 3 is connected with the input shaft 4 through a spline, and two oppositely-arranged oil cups 11 are arranged on the input shaft 4; the front shell 1 and the inner gear 9 are fixed by welding; the planet carrier comprises a front half disc 12 and a rear half disc 13 which are oppositely arranged, the front half disc 12 and the rear half disc 13 are fixedly connected through a connecting column 14, and the output shaft 10 is integrally arranged on the rear surface of the rear half disc 13; two ends of the planet shaft 7 respectively penetrate through the front half disc 12 and the rear half disc 13.
The utility model discloses well oil cup 11's structural design can realize annotating the function of fat, can regularly pour into the grease into to the splined connection department of motor output shaft 3 and input shaft 4 according to the operating condition of this gear box, and the performance lubrication action reduces the wearing and tearing of spline. Through with preceding casing 1 and internal gear 9 welded fastening, saved the assembly process between preceding casing 1 and the internal gear 9, only need pass through bolt 22 fixed connection with back casing 2 and internal gear 9 when the casing equipment, can accomplish the equipment of casing, reduced manufacturing procedure, improved the simple operation nature of casing equipment, improved machining efficiency, reduced the processing cost. Through the structure of splitting planet carrier into front half 12, back half 13, spliced pole 14 to set up output shaft 10 an organic whole in the rear surface of back half 13, saved the technology of solid forging, improved machining efficiency. The utility model overcomes the problem that the supporting gear box input shaft spline department of current permanent-magnet machine weares and teares soon, casing equipment technology is poor, casting planet carrier casting defect is many and forging planet carrier machining efficiency is low.
When the planet carrier is assembled, the front half disc 12 and the rear half disc 13 are fixedly connected by the connecting column 14, and then the front end part of the front half disc 12 is connected with the front machine shell 1 through the front planet carrier supporting bearing 20; the output shaft 10 is connected with the rear casing 2 through a rear planet carrier support bearing 21; thereby completing the assembly of the carrier. The assembly and processing technology of other structures of the gear box is realized by adopting a conventional means.
As shown in fig. 1 and 2, an I-th mounting hole 15 penetrating from front to back is formed in the middle of the front half disc 12, and the front end of the sun gear 5 is connected to the rear end of the input shaft 4 through a spline sleeve coupling 16 arranged in the I-th mounting hole 15.
The structural design of spline type sleeve coupling 16 has firstly realized being connected of sun gear 5 and input shaft 4, has secondly realized that sun gear 5 and input shaft 4 junction along axial, along radial unsteady, have further improved the utility model discloses a structural reliability.
As shown in fig. 1, the number of the planet wheel bearings 8 is two, and spacer sleeves 17 sleeved on the planet shafts 7 are respectively arranged between the front half disk 12 and the planet wheel bearing 8 positioned on the front side, between the rear half disk 13 and the planet wheel bearing 8 positioned on the rear side, and between the two planet wheel bearings 8.
When the gearbox works, the motor driving torque is transmitted to the sun gear 5 through the input shaft 4 and the spline sleeve coupler 16, and finally the torque is output by the planet carrier. Wherein, sun gear 5 meshes with planet wheel 6, planet wheel 6 meshes with internal gear 9, planet wheel 6 passes through planet wheel bearing 8 to be installed on planet axle 7, planet axle 7 is through three spacer 17 axial fixity and install on the planet carrier, the planet carrier through preceding planet carrier support bearing 20 install in the front on casing 1, through back planet carrier support bearing 21 install in back casing 2, preceding casing 1, back casing 2, internal gear 9 fixed connection.
The structural design of spacer 17 has realized the function of adjusting the internal clearance and pre-compaction, makes things convenient for two planet wheel bearings 8's installation.
As shown in fig. 1 and 2, the front half disc 12 and the rear half disc 13 are respectively provided with a plurality of second mounting holes 18 which are through from front to back, the front ends of the planet shafts 7 are correspondingly mounted in the second mounting holes 18 of the front half disc 12 one by one, the rear ends of the planet shafts are correspondingly mounted in the second mounting holes 18 of the rear half disc 13 one by one, and the planet shafts 7 and the second mounting holes 18 are in interference fit or transition fit.
As shown in fig. 1, a mounting groove 19 with an internal spline is formed at the front end of the input shaft 4, the motor output shaft 3 penetrates through the mounting groove 19, the oil cup 11 is in threaded connection with the side wall of the input shaft 4, and the inner cavity of the oil cup 11 is communicated with the mounting groove 19.
This structural design has realized that oil cup 11 is connected with the detachably of input shaft 4, 11 changes and the clearance of oil cup when making things convenient for later maintenance.
As shown in fig. 1 and fig. 2, the connecting column 14 is composed of a middle column section, a front column section penetrating through the front half disc 12, and a rear column section penetrating through the rear half disc 13, and both the diameter of the front column section and the diameter of the rear column section are smaller than the diameter of the middle column section; the front end of the front column section and the rear end of the rear column section are both conical, and the conical parts are correspondingly welded and fixed with the front half disc 12 and the rear half disc 13.
The structural design of the connecting column 14 is to realize the fixed connection of the front half disc 12 and the rear half disc 13, and to provide a supporting function, so that the distance between the front half disc 12 and the rear half disc 13 is kept at a proper installation distance. The front end part of the front column section and the rear end part of the rear column section are designed to be conical, the front half disc 12 and the front column section are conveniently fully welded at the joint of the rear half disc 13 and the rear column section, and the connection firmness is improved.
The front half disc 12, the rear half disc 13 and the connecting column 14 are all processed by adopting a forging process.
Compared with the cast planet carrier, the forging process avoids the generation of casting defects, thereby ensuring the processing quality.
In the specific implementation process, the widths of the spacer bushes 17 at the two sides are smaller than the width of the spacer bush 17 at the middle part.
Claims (7)
1. A gear box for a permanent magnet motor convenient to machine comprises a front shell (1), a motor output shaft (3), an input shaft (4), a sun gear (5), a planet gear (6), a planet shaft (7), a planet gear bearing (8), a planet carrier, an internal gear (9) and an output shaft (10); the method is characterized in that: the motor output shaft (3) is in splined connection with the input shaft (4), and two oppositely-placed oil cups (11) are arranged on the input shaft (4); the front shell (1) and the inner gear (9) are fixed by welding; the planet carrier comprises a front half disc (12) and a rear half disc (13) which are oppositely arranged, the front half disc (12) and the rear half disc (13) are fixedly connected through a connecting column (14), and the output shaft (10) is integrally arranged on the rear surface of the rear half disc (13); two ends of the planet shaft (7) respectively penetrate through the front half disc (12) and the rear half disc (13).
2. The gearbox for permanent magnet motor of claim 1, characterized in that: the middle part of the front half disc (12) is provided with an I-shaped mounting hole (15) which is through from front to back, and the front end of the sun gear (5) is connected with the rear end of the input shaft (4) through a spline type sleeve coupling (16) arranged in the I-shaped mounting hole (15).
3. The gearbox for permanent magnet motor of claim 1, characterized in that: the number of the planet wheel bearings (8) is two, and a spacer bush (17) sleeved on the planet shaft (7) is arranged between the front half disc (12) and the planet wheel bearing (8) positioned on the front side, between the rear half disc (13) and the planet wheel bearing (8) positioned on the rear side and between the two planet wheel bearings (8).
4. The gearbox for permanent magnet motor of claim 1, characterized in that: the front half disc (12) and the rear half disc (13) are respectively provided with a plurality of II mounting holes (18) which are through from front to back, the front ends of the planet shafts (7) are correspondingly mounted in the II mounting holes (18) of the front half disc (12) and the II mounting holes (18) of the rear half disc (13) one to one, and the planet shafts (7) and the II mounting holes (18) are in interference fit or transition fit.
5. The gearbox for permanent magnet motor of claim 1, characterized in that: the front end part of the input shaft (4) is provided with a mounting groove (19) with an internal spline, the motor output shaft (3) penetrates through the mounting groove (19), the oil cup (11) is in threaded connection with the side wall of the input shaft (4), and the inner cavity of the oil cup (11) is communicated with the mounting groove (19).
6. The gearbox for permanent magnet motor of claim 1, characterized in that: the connecting column (14) consists of a middle column section, a front column section penetrating through the front half disc (12) and a rear column section penetrating through the rear half disc (13), and the diameter of the front column section and the diameter of the rear column section are both smaller than that of the middle column section; the front end of the front column section and the rear end of the rear column section are both conical, and the conical parts are correspondingly welded and fixed with the front half disc (12) and the rear half disc (13).
7. The gearbox for permanent magnet motor of claim 1, characterized in that: the front half disc (12), the rear half disc (13) and the connecting column (14) are all processed by adopting a forging process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221042228.3U CN217519177U (en) | 2022-05-05 | 2022-05-05 | Gear box for permanent magnet motor convenient to machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221042228.3U CN217519177U (en) | 2022-05-05 | 2022-05-05 | Gear box for permanent magnet motor convenient to machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519177U true CN217519177U (en) | 2022-09-30 |
Family
ID=83388082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221042228.3U Active CN217519177U (en) | 2022-05-05 | 2022-05-05 | Gear box for permanent magnet motor convenient to machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519177U (en) |
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2022
- 2022-05-05 CN CN202221042228.3U patent/CN217519177U/en active Active
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