CN213039761U - Detachable compact power division main transmission system - Google Patents
Detachable compact power division main transmission system Download PDFInfo
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- CN213039761U CN213039761U CN202021251867.1U CN202021251867U CN213039761U CN 213039761 U CN213039761 U CN 213039761U CN 202021251867 U CN202021251867 U CN 202021251867U CN 213039761 U CN213039761 U CN 213039761U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a detachable compact power division main transmission system, which is a wind power main transmission system and comprises a primary planetary gear train, a secondary planetary gear train and a supporting gear ring, wherein the supporting gear ring is internally provided with the primary planetary gear train, and the supporting gear ring is fixed in a cabin system through a plurality of bearings; the left end of the supporting gear ring is connected with the wind wheel through a flange, and the right side of the supporting gear ring is connected with the secondary planet carrier assembly. The utility model supports the wind wheel through the supporting gear ring, the structure is compact, and the supporting rigidity is high; the supporting gear ring is connected with the secondary planet carrier; the wind wheel drives the supporting gear ring and simultaneously drives the secondary planet carrier to realize power splitting; the gear ring is in floating connection with the engine room; the uniform loading performance is good; the bearing capacity of the whole transmission chain system is high; the three-stage planetary transmission structure is adopted, so that the bearing capacity is high, and the transmission speed ratio is large; planetary gear trains at different levels are independent but split, the utility model discloses a driving chain has that power density is high, compact structure, light in weight, bears the weight of the dynamic height, and the maintenance is changed conveniently and with low costs.
Description
Technical Field
The utility model relates to a mechanical transmission technical field especially relates to a but split compact power split main drive system for wind-powered electricity generation non-directly drives transmission system.
Background
The common non-direct-drive wind power transmission system comprises a gear box, a main shaft, main shaft bearings, bearing seats, a locking disc, a coupling and other parts, wherein a wind wheel is connected with the gear box through the main shaft, the main shaft is supported on a bottom plate of a machine cabin through one or two main shaft bearings and the bearing seats, and the main function of the main shaft is to support the whole wind wheel and bear the bending moment and the torque of the wind wheel; the main function of the gear box is to realize the rotation speed matching between the wind wheel and the generator and drive the generator to generate electricity; the whole size of this kind of driving chain is long, and the width is wide, and weight is heavy.
The structure of a gearbox in a traditional transmission chain usually adopts a primary planet gear and secondary parallel gear structure or a secondary planet gear and primary parallel gear structure, a low-speed gear of the gearbox needs to bear all the torque of a wind wheel, the load is large, and a large transmission ratio needs to be realized; under the condition of equal torque input, the bending moment stress and the contact Hertz stress of the gear are large; the allowable bearing capacity of the gear material is certain, so that the low-speed gear ring in the traditional transmission chain has larger diameter and heavy overall weight in order to maintain the contact and bending safety margin of the gear.
The gearbox is used as a relatively integral part, when the planet level fails, the gearbox needs to be integrally replaced and maintained, the related overhead hoisting replacement cost is high, the dismounting is very difficult, large hoisting equipment and tools need to be additionally used, the field maintenance work amount is large, the replacement difficulty is high, and the maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a detachable compact power splitting main transmission system, which integrates a main shaft and a gear box, greatly reduces the overall size of a transmission chain, and has high power density, light weight and low cost; each stage of transmission assembly of the transmission system can be relatively independent, and the disassembly in the engine room of the fan can be easily realized; the disassembled parts have light weight, convenient maintenance and replacement and low maintenance cost.
The purpose of the utility model is realized like this: a detachable compact power split main transmission system comprises a supporting gear ring, a primary planetary gear train and a secondary planetary gear train, wherein the supporting gear ring is internally provided with the primary planetary gear train, and the secondary planetary gear train comprises a secondary planet carrier assembly; the supporting gear ring is fixed in the cabin system through a plurality of bearings; the left end of the supporting gear ring is connected with the wind wheel through a flange, and the right side of the supporting gear ring is connected with the secondary planet carrier assembly.
Further, the two-stage planetary gear train also comprises a two-stage gear ring which is in floating connection with the engine room system through a spline.
Furthermore, a first-level planet carrier assembly and a first-level sun gear can be arranged in the supporting gear ring, a first-level left flange is arranged on the left side of the supporting gear ring, the first-level planet carrier assembly is supported on the first-level left flange and the first-level right flange through a bearing, and the first-level planet carrier assembly is connected with the second-level sun gear.
The secondary planetary gear train also comprises a secondary sun gear, the secondary gear ring is meshed with a planetary gear in the secondary planet carrier assembly, the secondary planet carrier assembly is meshed with the secondary sun gear through the secondary planetary gear, and the secondary gear ring is arranged on the secondary planet carrier through a secondary gear ring left bearing and a secondary gear ring right bearing; the second-stage sun gear is connected with the first-stage planet carrier through a spline.
Furthermore, the three-stage planetary gear train comprises a three-stage planet carrier assembly, a three-stage flange, a three-stage gear ring and a three-stage sun gear, wherein the three-stage gear ring and the generator mounting flange are fixed on the three-stage flange, and the three-stage flange is fixed on the engine room.
Further, the left side of the three-stage planet carrier is supported on an engine room system through a bearing and a three-stage flange, and the right side of the three-stage planet carrier is supported on a generator mounting flange through a bearing; the third-level planet carrier is connected with the first-level sun gear, the third-level planet carrier rotationally drives the third-level sun gear, and the third-level sun gear is connected with the generator.
Furthermore, a first-level left flange and a first-level right flange are arranged inside the supporting gear ring.
Furthermore, a first-stage left flange and a first-stage right flange which are arranged inside the supporting gear ring are provided with mounting holes, and first-stage planet carrier bearings are arranged through the mounting holes and support a first-stage planet carrier; the first-stage planet carrier and the supporting gear ring form a closed whole through the first-stage left flange and the first-stage right flange.
Furthermore, the supporting gear ring is provided with a three-stage planetary gear train, the three-stage planetary gear train comprises a three-stage gear ring arranged on the inner wall of the supporting gear ring, the right side of the first-stage planet carrier assembly is supported on a first-stage right flange through a bearing, and the left side of the third-stage planet carrier assembly is supported on a first-stage left flange through a bearing; the generator is fixed in the engine room system through a fixed flange; and the third-stage sun gear is connected with an input shaft of the generator through a coupler.
Further, the cabin system comprises a cabin shell and a lower shell, wherein one end of the lower shell is communicated with the side wall of the cabin shell, and a spline flange is arranged inside the lower shell.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a support the ring gear and extend the flange and realize that it is connected with wheel hub through bolt or pin at wheel hub side, it directly supports on cabin casing through 2 bearings to support the ring gear, the function of main shaft has been realized to the support ring gear, support whole wind wheel, it is rotatory that wind wheel direct drive supports the ring gear, the main shaft has been saved, jumbo size parts such as bearing frame and locking dish, the length and the width of whole driving chain have been reduced greatly, also lighten whole transmission system's weight, and the cost is reduced, realize bigger complete machine power under present highway transportation limit for height limit for width's size.
(2) The left support and the right support are arranged inside the supporting gear ring, and are matched with the gear ring through the seam allowance, so that radial support is provided, the rigidity of the supporting gear ring is improved, the deformation of the gear ring caused by wind wheel bending moment is reduced, and the load balance between planet wheels in an inner planet stage is improved and improved; meanwhile, the bearing capacity of the gear ring supporting shaft is improved, so that the load distribution of the internal rolling body of the supporting gear ring bearing is more uniform. Related holes are formed in the left flange and the spline flange and used for mounting a primary planet carrier bearing and supporting a primary planet carrier; the first-stage planet carrier and the supporting gear ring form a closed whole through the left flange and the spline flange, the rigidity is high, and the influence of the change of external load on the meshing of the first-stage planet carrier internal gear is greatly reduced.
(3) The utility model discloses a support ring gear and second grade planet carrier link together, therefore the wind wheel rotation process drives also the synchronous drive second grade planet carrier rotation when supporting the ring gear, and the second grade planet carrier drives the rotation of second grade planet wheel, and the rotation of second grade planet wheel drive second grade sun gear, and the second grade sun gear passes through the spline to be connected with the first grade planet carrier, through the meshing motion of first grade planet level with support ring gear and second grade sun gear's input power finally the whole through the output of first grade sun gear for tertiary planet carrier; the supporting gear ring and the secondary planet carrier bear the torque from the wind wheel together, so that the load of the single-stage gear is greatly reduced; with the same input torque, the size can be smaller, and the overall weight is lighter.
(4) The utility model discloses a second grade ring gear internal surface sets up 2 angular contact ball raceway surfaces, and 2 fixed contact ball bearing inner circles on the second grade planet carrier make second grade ring gear rotation center concentric with the second grade planet carrier through the pretension of bearing, eliminate and reduce the influence that second grade ring gear gravity is uneven to the meshing of second grade planetary gear train, improve greatly all carrying between the planet wheel of second grade planetary gear train, the second grade is carried the effect all better promptly.
(5) The second-stage gear ring of the utility model is connected with the engine room in a floating way through the spline, so that the manufacturing difficulty of the second-stage gear ring is lower, and the manufacturability is better; the spline has angular, radial and axial supplement function system structure deformation to bring the change of the second-stage planet stage axis, and the engine room provides counter moment support for the whole transmission chain.
(6) The utility model discloses a tertiary planetary gear train is relatively independent and removable, can easily decompose after the single-stage became invalid, demolish the change, and need not additionally lift by crane equipment and frock with the help of large-scale, and the wind-powered electricity generation transmission system that significantly reduces maintains the engineering volume of changing on the day, can easily realize the independent change to the planetary gear train at different levels that became invalid, greatly reduced the cost of maintenance change and because the maintenance is changed the electric quantity loss that brings the complete machine and shut down.
(7) The utility model discloses an engine room system adopts cylinder formula engine room system, by 2 cylinders according to certain contained angle cross the intersection with great ease and constitute, this engine room structural style is simple, can reduce the spare part of engine room system by a wide margin, save the processing of spare part and the assemble duration of fan engine room system, set up a plurality of support positions in the engine room cylinder with the wheel hub butt joint in addition, support main shaft and planet carrier, increase substantially the rigidity and the intensity of whole engine room system, and the casing function of gear box has been undertaken, greatly reduced the weight in whole engine room.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic cross-sectional view of the support ring gear and the three-stage planetary gear train according to embodiment 1 of the present invention.
Fig. 3 is a schematic cross-sectional view of a two-stage planetary gear train according to embodiment 1 of the present invention.
Fig. 4 is a schematic cross-sectional view of a three-stage planetary gear train according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of a nacelle system according to embodiment 1 of the present invention.
Fig. 6 is a sectional view of a nacelle cylinder of embodiment 1 of the present invention.
Fig. 7 is a schematic structural view of embodiment 2 of the present invention.
Fig. 8 is a schematic structural view of the support ring gear 1 according to embodiment 2 of the present invention.
Fig. 9 is a schematic cross-sectional view of a two-stage planetary gear train according to embodiment 2 of the present invention.
Fig. 10 is a schematic cross-sectional view of a three-stage planetary gear train according to embodiment 2 of the present invention.
Wherein:
the device comprises a supporting gear ring 1, a primary planetary gear train 2, a primary left flange 2.1, a primary planet carrier assembly 2.2, a primary right flange 2.3, a primary sun gear 2.4, a secondary planetary gear train 3, a secondary gear ring 3.1, a secondary gear ring left bearing 3.2, a secondary planet carrier assembly 3.3, a secondary sun gear 3.4, a secondary gear ring right bearing 3.5, a tertiary planetary gear train 4, a tertiary planet carrier assembly 4.1, a tertiary flange 4.2, a tertiary gear ring 4.3, a generator mounting flange 4.4, a tertiary sun gear 4.5, a generator room system 5, a generator room cylinder 5.1, a lower cylinder 5.2, a spline flange 5.3 and a generator 6.
Detailed Description
Example 1:
referring to fig. 1-6, the utility model relates to a but split compact power split main drive system, it includes supporting ring gear 1, one-level planetary gear train 2, second grade planetary gear train 3, tertiary planetary gear train 4, cabin system 5 and generator 6.
The primary planetary gear train 2 comprises a primary left flange 2.1, a primary planet carrier assembly 2.2, a primary right flange 2.3 and a primary sun gear 2.4; the secondary planetary gear train 3 comprises a secondary gear ring 3.1, a secondary gear ring left bearing 3.2, a secondary planet carrier component 3.3, a secondary sun gear 3.4 and a secondary gear ring right bearing 3.5; the three-stage planetary gear train 4 comprises a three-stage planet carrier assembly member 4.1, a three-stage flange 4.2, a three-stage gear ring 4.3, a generator mounting flange 4.4 and a three-stage sun gear 4.5.
One-level planet carrier subassembly 2.2, second grade planet carrier subassembly 3.3 and tertiary planet carrier subassembly 4.1 all include planet carrier, planet wheel bearing and planet round pin axle.
The left end of the supporting gear ring 1 is connected with the wind wheel system, a primary left flange 2.1 is arranged on the left side of the supporting gear ring 1, a primary right flange 2.3 is arranged on the right side of the supporting gear ring 1, and the primary left flange 2.1 and the primary right flange 2.3 are matched with the gear ring through rabbets, so that internal support is provided for the supporting gear ring 1, and deformation of the supporting gear ring 1 is reduced; be equipped with the mounting hole on one-level left flange 2.1 and one-level right flange 2.3, install one-level planet carrier bearing in the mounting hole, one-level planet carrier bearing supports one-level planet carrier subassembly 2.2, one-level planet carrier subassembly 2.2 supports on one-level left flange 2.1 and one-level right flange 2.3 through 2 bearings, one-level planet carrier subassembly 2.2 forms a relatively confined whole with one-level planet carrier bearing through one-level left flange 2.1 and one-level right flange 2.3 with supporting ring gear 1, the rigidity is good, inside gear engagement receives external load change to influence for a short time.
The secondary planet carrier component 3.3 is connected with the supporting gear ring 1, the secondary planet carrier component 3.3 rotationally drives the secondary sun gear 3.4 to rotate, the secondary sun gear 3.4 is connected with the primary planet carrier component 2.2 through a spline, and finally the whole torque of the supporting gear ring 1 and the secondary sun gear 3.4 is output to the tertiary planet gear train 4 through the primary sun gear 2.4 through the meshing motion of the primary planet carrier component 2.2.
The secondary gear ring 3.1 is arranged on the secondary planet carrier component 3.3 through a secondary gear ring left bearing 3.2 and a secondary gear ring right bearing 3.5; the inner surface of the secondary gear ring 3.1 forms a 2-point contact ball raceway surface through machining, 2 inner rings of contact ball bearings are fixed on the secondary planet carrier component 3.3, and the rotating center of the secondary gear ring 3.1 and the center of the secondary planet carrier component 3.3 are always concentric through pre-tightening of the bearings, so that the uneven influence of the gravity of the secondary gear ring 3.1 on the meshing with the secondary planetary gear train 3 is eliminated and reduced.
The three-level gear ring 4.3 is fixed on the engine room system 5 through a three-level flange 4.2, the generator 6 is fixed on the three-level gear ring 4.3 through a generator mounting flange 4.4, the left side of the three-level planet carrier assembly 4.1 is supported on the second-level planet carrier assembly 3.3 through a bearing, and the right side of the three-level planet carrier assembly is supported on the generator mounting flange 4.4 through a bearing; the three-stage planet carrier assembly 4.1 is connected with the first-stage sun gear 2.4, the three-stage planet carrier assembly 4.1 is driven to rotate through the first-stage sun gear 2.4, the three-stage planet carrier assembly 4.1 drives the third-stage sun gear 4.5 through meshing between the 3-stage planet gears, the third-stage sun gear 4.5 is connected with an input shaft of the generator 6 through a coupler, and finally the generator is driven to rotate, so that the magnetic force lines are cut to output electric energy outwards.
The engine room system 5 comprises a cylindrical engine room shell 5.1 and a lower cylinder 5.2, one end of the lower cylinder 5.2 is communicated with the side wall of the cylindrical engine room shell 5.1 in an intersecting manner, and the sections of the cylindrical engine room shell 5.1 and the lower cylinder 5.2 are in a T-shaped structure; the cylindrical engine room shell 5.1 is in butt joint with a hub of a fan, 3 support frames are arranged inside the cylindrical engine room shell 5.1 and support a main shaft and a planet carrier, the rigidity and the strength of a whole engine room system are greatly improved, the shell function of a gear box is born, the weight of the whole engine room is reduced, and the lower cylinder 5.2 is mainly connected with parts such as a yaw system and a tower barrel of the fan.
The working principle is as follows:
the primary planetary gear train is integrally supported in the cylindrical engine room shell through 2 bearings by utilizing the supporting gear ring, and the supporting gear ring supports the whole wind wheel, so that a main shaft is omitted; the left side of a supporting gear ring in the primary planetary gear train is connected with a wind wheel system through a flange, the right side of the supporting gear ring is connected with a secondary planet carrier of the secondary planetary gear train, and the wind wheel drives the supporting gear ring to drive the secondary planet carrier to rotate. The wind wheel system rotates after capturing wind energy, drives the supporting gear ring and the secondary planet carrier to rotate simultaneously, and the supporting gear ring and the secondary planet carrier share the capturing torque of the wind wheel together. The secondary planet carrier drives a secondary sun gear to rotate through the meshing motion of an internal gear of the secondary planetary gear train, and transmits the energy from the wind wheel shared by the secondary planet carrier to the secondary sun gear, and the secondary sun gear is connected with the primary planet carrier; the secondary sun wheel drives the primary planet carrier to rotate; and the energy of the wind wheel shared by the second-stage planet carrier is transferred to the first-stage planet carrier. The supporting gear ring and the primary planet carrier rotate simultaneously, and the primary sun gear is driven to rotate according to the meshing motion relationship of the internal gears of the primary planetary gear train; and the supporting gear ring shares the energy captured by the wind wheel and the energy (from the sharing part with the second-stage planet carrier) of the second-stage sun gear to be transmitted to the first-stage sun gear, the first-stage sun gear penetrates through the hollow second-stage sun gear to be connected with the third-stage planet carrier to drive the third-stage planet carrier to rotate, the third-stage planet carrier rotationally drives the third-stage sun gear through the meshing motion of the 3-stage planet gear, the third-stage sun gear is connected with the input shaft of the generator to drive the generator to rotate, and the.
Example 2:
referring to fig. 7-10, the present invention relates to a detachable compact power split main transmission system, which is different from embodiment 1 in that the first-stage planetary gear train 2 and the third-stage planetary gear train 4 are disposed in the supporting gear ring 1, the third-stage gear ring 4.3 is disposed on the inner wall of the supporting gear ring 1, the right side of the first-stage planet carrier assembly 2.2 is supported on the first-stage right flange 2.3 through a bearing, and the left side of the third-stage planet carrier assembly 4.1 is supported on the first-stage left flange 2.1 through a bearing;
the generator 6 is flange-mounted in the nacelle system 5.
And the third-stage sun gear 4.5 is connected with an input shaft of the generator 6 through a coupler, and finally drives the generator to rotate.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a but split compact power split main transmission system, it includes support ring gear (1), one-level planetary gear train (2) and second grade planetary gear train (3), its characterized in that: a primary planetary gear train (2) is arranged in the supporting gear ring (1), and the supporting gear ring (1) is fixed in the engine room system (5) through a plurality of bearings; the secondary planetary gear train (3) comprises a secondary planet carrier assembly member (3.3); the left end of the supporting gear ring (1) is connected with the wind wheel through a flange, and the right side of the supporting gear ring (1) is connected with the secondary planet carrier assembly (3.3); therefore, the secondary planetary gear train (3) also comprises a secondary gear ring (3.1), and the secondary gear ring (3.1) is in floating connection with the engine room system (5) through a spline.
2. A detachable compact power splitting main drive system according to claim 1, characterized in that: set up one-level planet carrier subassembly (2.2) and one-level sun gear (2.4) in supporting ring gear (1), the left side that supports ring gear (1) sets up one-level left flange (2.1), and one-level planet carrier subassembly (2.2) supports on one-level left flange (2.1) and one-level right flange (2.3) through the bearing, and one-level planet carrier subassembly (2.2) is connected with second grade sun gear (3.4).
3. A detachable compact power splitting main drive system according to claim 1, characterized in that: the secondary planetary gear train (3) further comprises a secondary sun gear (3.4), the secondary gear ring (3.1) is meshed with a planetary gear in the secondary planet carrier assembly (3.3), the secondary planet carrier assembly (3.3) is meshed with the secondary sun gear (3.4) through a secondary planetary gear, and the secondary gear ring (3.1) is arranged on the secondary planet carrier (3.3) through a secondary gear ring left bearing (3.2) and a secondary gear ring right bearing (3.5); and the secondary sun gear (3.4) is connected with the primary planet carrier assembly (2.2) through a spline.
4. A detachable compact power splitting main drive system according to claim 1, characterized in that: the three-stage planetary gear train comprises a three-stage planetary gear frame assembly (4.1), a three-stage flange (4.2), a three-stage gear ring (4.3) and a three-stage sun gear (4.5), wherein the three-stage gear ring (4.3) and a generator mounting flange (4.4) are fixed on the three-stage flange (4.2), and the three-stage flange (4.2) is fixed on an engine room system (5).
5. A detachable compact power splitting main transmission system according to claim 4, characterized in that: the left side of the three-stage planet carrier (4.1) is supported on an engine room system (5) through a bearing and a three-stage flange (4.2), and the right side of the three-stage planet carrier is supported on a generator mounting flange (4.4) through a bearing; the three-stage planet carrier (4.1) is connected with the first-stage sun gear (2.4), the three-stage planet carrier (4.1) rotationally drives the three-stage sun gear (4.5), and the three-stage sun gear (4.5) is connected with the generator (6).
6. A detachable compact power splitting main drive system according to claim 1, characterized in that: the supporting gear ring (1) is internally provided with a first-level left flange (2.1) and a first-level right flange (2.3).
7. A detachable compact power splitting main transmission system according to claim 6, characterized in that: a first-stage left flange (2.1) and a first-stage right flange (2.3) which are arranged in the supporting gear ring (1) are provided with mounting holes, and first-stage planet carrier bearings are arranged through the mounting holes and support the first-stage planet carrier assembly (2.2); the primary planet carrier assembly (2.2) and the supporting gear ring (1) form a closed whole through a primary left flange (2.1) and a primary right flange (2.3).
8. A detachable compact power splitting main drive system according to claim 7, characterized in that: and a three-stage planetary gear train (4) is arranged in the supporting gear ring (1), the three-stage planetary gear train (4) comprises a three-stage gear ring (4.3) arranged on the inner wall of the supporting gear ring (1), and the right side of the one-stage planet carrier assembly (2.2) is supported on the one-stage right flange (2.3) through a bearing.
9. A detachable compact power splitting main transmission system according to claim 5, characterized in that: the left side of the third-stage planet carrier assembly member (4.1) is supported on a first-stage left flange (2.1) through a bearing; the generator (6) is fixed in the cabin system (5) through a flange; and the third-stage sun gear (4.5) is connected with an input shaft of the generator (6) through a coupler.
10. A detachable compact power splitting main drive system according to claim 1, characterized in that: the engine room system (5) comprises an engine room shell (5.1) and a lower shell (5.2), wherein one end of the lower shell (5.2) is communicated with the side wall of the engine room shell (5.1), and a spline flange (5.3) is arranged inside the lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251867.1U CN213039761U (en) | 2020-07-01 | 2020-07-01 | Detachable compact power division main transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251867.1U CN213039761U (en) | 2020-07-01 | 2020-07-01 | Detachable compact power division main transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213039761U true CN213039761U (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021251867.1U Active CN213039761U (en) | 2020-07-01 | 2020-07-01 | Detachable compact power division main transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213039761U (en) |
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2020
- 2020-07-01 CN CN202021251867.1U patent/CN213039761U/en active Active
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