CN217583050U - Built-in planetary gear box of 3K structure type - Google Patents
Built-in planetary gear box of 3K structure type Download PDFInfo
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- CN217583050U CN217583050U CN202221767827.1U CN202221767827U CN217583050U CN 217583050 U CN217583050 U CN 217583050U CN 202221767827 U CN202221767827 U CN 202221767827U CN 217583050 U CN217583050 U CN 217583050U
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Abstract
The utility model belongs to the technical field of the planetary gear case, concretely relates to concealed planetary gear case of 3K structure type. The utility model discloses an interior concealed planetary gear case of 3K structure type, include: a fixed shaft; the output cover is rotatably sleeved at one end of the fixed shaft, and the inner wall of the output cover is provided with annular teeth; the input shaft extends into the output cover from the end part of the fixed shaft; the sun wheel is fixedly connected with the end part of the input shaft extending into the output cover; and the planetary transmission structure is matched with the sun gear and the output cover. The utility model discloses a built-in planetary gear case of 3K structure type rotates the cover with the output and establishes the one end at the fixed axle, installs and is connected with the sun gear in the fixed epaxial input shaft stretches into the output cover, and the linkage of rethread planet transmission structure drives the tip rotation of output cover around the fixed axle. The built-in design reduces the whole axial dimension of the planetary gear box, reasonably utilizes the limited installation space and meets the installation requirement of compact places of engineering machinery.
Description
Technical Field
The utility model belongs to the technical field of the planetary gear case, concretely relates to concealed planetary gear case of 3K structure type.
Background
The planetary gearbox comprises a planetary reduction gearbox, a gearbox and a speed increasing box, wherein the planetary reduction gearbox is a mechanism with a plurality of planetary gears rotating around a sun gear, and is also a mechanism for reducing the transmission speed ratio and increasing the torque of the motor in proportion.
The existing planetary gear box in the field of engineering machinery is mostly of a 2K-H type planetary transmission structure, the transmission ratio can be improved generally only by multistage planetary series connection, but the overall axial size of the planetary gear box is large due to the multistage series connection, a large installation space is needed, the overall size of transmission equipment is greatly influenced, and the planetary gear box cannot meet the installation requirement of a compact place of engineering machinery.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an interior concealed planetary gear case of 3K structure type to solve the great technical problem of the whole axial dimension of current planetary gear case.
In order to solve the technical problem, the utility model provides an interior concealed planetary gear case of 3K structure type, include: a fixed shaft; the output cover is rotatably sleeved at one end of the fixed shaft, and the inner wall of the output cover is provided with annular teeth; the input shaft extends into the output cover from the end part of the fixed shaft; the sun wheel is fixedly connected with the end part of the input shaft extending into the output cover; the planetary transmission structure is matched with the sun gear and the output cover; namely, the input shaft is suitable for driving the sun gear to rotate so as to drive the output cover to rotate around the end part of the fixed shaft through the planetary transmission structure.
Further, the planetary transmission structure includes: the outer gear ring is fixedly arranged at the end part of the fixed shaft close to the output cover; the positioning gear ring is sleeved on the outer side of the outer gear ring, and the inner side of the positioning gear ring is meshed with the outer gear ring; the planet assembly is rotatably arranged on the side wall of the outer gear ring far away from the fixed shaft, the positioning part of the planet assembly is meshed with the inner side of the positioning gear ring, and the transmission part of the planet assembly is meshed with the sun gear; and the transmission part of the planetary assembly is meshed with the annular teeth of the output cover.
Further, the planetary assembly includes: the planet carrier is rotatably arranged on the side wall of the outer gear ring, which is far away from the fixed shaft; the planet shaft is fixedly arranged on the planet carrier through a positioning pin; the duplex planet wheel is rotatably arranged on the planet shaft, the positioning part is formed by the pinion of the duplex planet wheel and is meshed with the inner side of the positioning gear ring, and the transmission part is formed by the bull gear of the duplex planet wheel and is meshed with the inner side of the annular tooth of the output cover; and the sun gear penetrates into the planet carrier to be meshed with the large gear of the duplex planet gear.
Furthermore, at least one planet bearing is arranged between the planet shaft and the duplex planet wheel; the planet shaft is provided with a lubricating hole suitable for supplying oil to the planet bearing.
Further, a shaft sleeve is arranged between the duplex planet wheel and the planet carrier.
Further, the output cover includes: the output flange is rotatably sleeved at one end of the fixed shaft; the box cover is arranged on one side of the output flange, which is far away from the fixed shaft; and the inner gear ring is fixedly arranged between the end part of the output flange and the box cover, and the inner side of the inner gear ring forms the annular gear teeth which are meshed with the transmission part of the planetary assembly.
Further, a buffering jacking ball is rotatably arranged on the side face, far away from the input shaft, of the sun wheel; the buffering top ball is abutted against the inner wall of the box cover.
Furthermore, at least one corner bearing is arranged between the output cover and the fixed shaft; the angle bearing is connected with the outer gear ring through a distance ring.
Furthermore, a floating oil seal structure suitable for floating seal is arranged at the joint between the output cover and the fixed shaft.
Further, the floating oil seal structure includes: the floating oil seal seat is sleeved at one end of the fixed shaft; the O-shaped ring is sleeved on the outer side of the floating oil seal seat and is abutted against the inner wall of the output cover; one floating assembly of the pair of connected floating assemblies is abutted with the floating oil seal seat, and the other floating assembly of the pair of connected floating assemblies is abutted with the fixed shaft.
The beneficial effects of the utility model are that, the utility model discloses a concealed planetary gear case of 3K structure type rotates the cover with the output cover and establishes the one end at the fixed axle, installs and is connected with the sun gear in the fixed epaxial input shaft stretches into the output cover, and the linkage of rethread planet transmission structure drives the tip rotation of output cover around the fixed axle. The built-in design reduces the whole axial dimension of the planetary gear box, reasonably utilizes the limited installation space and meets the installation requirement of compact places of engineering machinery.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a preferred embodiment of an internal planetary gear box of 3K structure type according to the present invention;
FIG. 2 is a cross-sectional view of a preferred embodiment of an internal planetary gearbox of the 3K configuration of the present invention;
fig. 3 is a schematic structural view of a preferred embodiment of the planetary assembly of the present invention.
In the figure:
a fixed shaft 1, an input shaft 2 and a sun gear 3;
the output cover 4, the output flange 41, the box cover 42 and the inner gear ring 43;
the planetary transmission structure 5, an outer gear ring 51, a positioning gear ring 52, a planetary component 53, a planet carrier 531, a planetary shaft 532, a duplex planet wheel 533 and a positioning pin 534;
the lubricating structure comprises a planetary bearing 6, a lubricating hole 7, a shaft sleeve 8, a buffering top ball 9, an angle bearing 10 and a distance ring 11;
the floating oil seal structure 12, a floating oil seal seat 121, an O-shaped ring 122 and a floating assembly 123;
wear-resisting ring 13, adapter sleeve 14.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Examples
As shown in fig. 1, the 3K structure type built-in planetary gear box of the present embodiment includes: the device comprises a fixed shaft 1, an input shaft 2, a sun gear 3, an output cover 4 and a planetary transmission structure 5; wherein, the output cover 4 is rotatably sleeved at one end of the fixed shaft 1, and the inner wall of the output cover 4 is provided with annular teeth; the input shaft 2 extends into the output cover 4 from the end part of the fixed shaft 1; the sun gear 3 is fixedly connected with the end part of the input shaft 2 extending into the output cover 4; the planetary transmission structure 5 is in tooth fit with the sun gear 3 and the output cover 4; i.e. the input shaft 2 is adapted to rotate the sun gear 3 to rotate the output housing 4 around the end of the stationary shaft 1 via the planetary transmission 5. An output cover 4 is rotatably sleeved at one end of a fixed shaft 1, an input shaft 2 arranged on the fixed shaft 1 extends into the output cover 4 to be connected with a sun gear 3, and then the output cover 4 is driven to rotate around the end part of the fixed shaft 1 through linkage of a planetary transmission structure 5. The built-in design reduces the whole axial dimension of the planetary gear box, reasonably utilizes the limited installation space and meets the installation requirement of compact places of engineering machinery.
As shown in fig. 2, in the present embodiment, specifically, the planetary transmission structure 5 includes: an outer ring gear 51, a positioning ring gear 52 and a planet assembly 53; wherein, the outer gear ring 51 is fixedly arranged at the end part of the fixed shaft 1 close to the output cover 4; the positioning gear ring 52 is sleeved on the outer side of the outer gear ring 51, and the inner side of the positioning gear ring 52 is meshed with the outer gear ring 51; the planet component 53 is rotatably arranged on the side wall of the outer ring gear 51 far away from the fixed shaft 1, the positioning part of the planet component 53 is meshed with the inner side of the positioning ring gear 52, and the transmission part of the planet component 53 is meshed with the sun gear 3; and the gearing of the planetary assembly 53 meshes with the annular toothing of the output housing 4. The sun wheel 3 drives the planet component 53 to rotate, the rotation of the planet component 53 drives the positioning gear ring 52 to slightly float along the input shaft 2 on the outer gear ring 51, and the positioning part of the planet component 53 can automatically compensate displacement deviation in the process of rotating on the inner side of the positioning gear ring 52, so that the vibration impact during the transmission of the planet component 53 is reduced. The output housing 4 is rotated about the end of the stationary shaft 1 by the planetary assembly 53. The outer gear ring 51, the positioning gear ring 52 and the planet assembly 53 are all arranged in the output cover 4 and are matched and linked with each other to transmit the power of the sun gear 3 to the output cover 4 through the outer gear ring 51, the positioning gear ring 52 and the planet assembly 53, so that the transmission output of the output cover 4 is realized. The planetary gear box effectively shortens the axial size, and has more compact structure and small volume; the transmission ratio can be increased, and the single-stage transmission ratio is large (the single-stage transmission ratio can reach 100 and can reach 500 at most); the bearing capacity is large; reliable operation and long service life.
As shown in fig. 3, in the present embodiment, specifically, the planetary assembly 53 includes: a planet carrier 531, a planet shaft 532 and a duplex planet wheel 533; wherein, the planet carrier 531 is rotatably arranged on the side wall of the external gear ring 51 far away from the fixed shaft 1; the planet shaft 532 is fixedly arranged on the planet carrier 531 through a positioning pin 534; the duplex planet wheel 533 is rotatably arranged on the planet shaft 532, the positioning part formed by the pinion of the duplex planet wheel 533 is meshed with the inner side of the positioning gear ring 52, and the transmission part formed by the gearwheel of the duplex planet wheel 533 is meshed with the inner side of the annular tooth of the output cover 4; and the sun gear 3 penetrates the planet carrier 531 to be meshed with the large gear of the duplex planet gear 533. The sun gear 3 drives the big gear of the duplex planet gear 533 to rotate, and then the big gear of the duplex planet gear 533 drives the output cover 4 to rotate, so that the requirement of reverse input and output is met.
As shown in fig. 3, in the present embodiment, at least one planet bearing 6 is preferably disposed between the planet shaft 532 and the double planet 533; the planetary shaft 532 is provided with a lubrication hole 7 adapted to supply oil to the planetary bearing 6. The lubrication hole 7 is formed in the planet shaft 532, so that the planet bearing 6 in the duplex planet wheel 533 can be ensured to be in an oil supply state all the time, and even when the duplex planet wheel 533 is at the highest point, the planet bearing 6 is still lubricated by oil, and oil film protection is formed.
As shown in fig. 3, in the present embodiment, preferably, a shaft sleeve 8 is disposed between the double planetary gear 533 and the planet carrier 531 to prevent the double planetary gear 533 from directly contacting the planet carrier 531, so as to reduce friction and effectively protect the double planetary gear 533.
As shown in fig. 2, in the present embodiment, specifically, the output cover 4 includes: an output flange 41, a box cover 42 and an inner gear ring 43; wherein, the output flange 41 is rotatably sleeved at one end of the fixed shaft 1; the box cover 42 is arranged on one side of the output flange away from the fixed shaft 1; the inner gear ring 43 is fixedly arranged between the end of the output flange 41 and the cover 42, and the inner side of the inner gear ring 43 forms the annular gear teeth which are meshed with the transmission part of the planetary assembly 53. The input shaft 2 drives the sun gear 3 to rotate, then the sun gear 3 drives the duplex planet gear 533 to rotate, and then the gear wheel of the duplex planet gear 533 drives the inner gear ring 43 to rotate, so that the inner gear ring 43 drives the output flange 41 to rotate around the end of the fixed shaft 1, and the input and the output are opposite. And the output flange 41, the box cover 42 and the inner gear ring 43 form a cover-shaped structure, which forms an accommodating cavity with the fixed shaft 1, and the planetary transmission structure 5 and the sun gear 3 are positioned in the accommodating cavity to enable the planetary gear box to form a built-in structure, so that the planetary gear box is more compact in structure, the bearing capacity is increased, and the whole volume is reduced.
As shown in fig. 2, in the present embodiment, it is preferable that a buffering top ball 9 is rotatably provided on the side of the sun gear 3 away from the input shaft 2; the cushion top balls 9 abut against the inner wall of the case cover 42. The middle part of the box cover 42 extends into the planet carrier 531 and is connected with the sun gear 3 through the buffering top ball 9 in a contact mode, the sun gear 3 is of a floating structure in the containing cavity, the planet carrier 531 is in a floating state in the radial direction, and the planet load balancing effect is effectively exerted.
As shown in fig. 2, in the present embodiment, it is preferable that at least one angular bearing 10 is provided between the output housing 4 and the fixed shaft 1; the angle bearing 10 is connected to the external ring gear 51 via a distance ring 11. The distance ring 11 is clamped between the angle bearing 10 and the outer gear ring 51, so that the outer gear ring 51 is installed more stably; an angular bearing 10 is provided to support the output housing 4 for rotation about the end of the stationary shaft 1.
As shown in fig. 2, in the present embodiment, a floating oil seal structure 12 is preferably disposed at the connection between the output cover 4 and the fixed shaft 1, and is adapted to floating seal the output cover 4 and the fixed shaft 1, so that the sun gear 3 and the planetary assembly 53 are in a floating structure, and the planetary load balancing effect is effectively exerted.
As shown in fig. 2, in the present embodiment, specifically, the floating oil seal structure 12 includes: a floating oil seal seat 121, an O-ring 122 and a pair of connected floating assemblies 123; wherein, the floating oil seal seat 121 is sleeved at one end of the fixed shaft 1; the O-shaped ring 122 is sleeved on the outer side of the floating oil seal seat 121, and the O-shaped ring 122 is abutted against the inner wall of the output cover 4; one floating assembly 123 abuts the floating oil seal holder 121, and the other floating assembly 123 abuts the fixed shaft 1. The floating assembly 123 comprises a concave ring and an annular ring positioned in the concave ring, the concave rings of the two floating assemblies 123 are connected, and the outer edge of the annular ring is abutted against the fixed shaft 1 or the floating oil seal seat 121. Through the mutual matching of the floating oil seal seat 121, the O-shaped ring 122 and the floating assembly 123, the output cover 4 and the fixed shaft 1 are in floating seal, and external impurities are prevented from entering the planetary gear box; and the sun gear 3 and the planet component 53 are in a floating structure through the floating oil seal structure 12, and the planet load balancing effect is effectively exerted.
As shown in fig. 2, in the present embodiment, it is preferable that a wear ring 13 is provided between the planetary assembly 53 and the fixed shaft 1, and between the planetary assembly 53 and the case cover 42, to effectively protect the planetary assembly 53. The wear-resisting ring 13 is made of polyvinyl chloride, has good wear resistance and has the characteristics of shock absorption and noise reduction.
As shown in fig. 2, in the present embodiment, a connecting sleeve 14 is preferably sleeved at the connection between the sun gear 3 and the input shaft 2, so as to effectively protect the sun gear 3 and the input shaft 2 and improve the connection stability between the sun gear 3 and the input shaft 2.
To sum up use the utility model discloses an interior concealed planetary gear case of 3K structure type rotates the cover with the output cover and establishes the one end at the fixed axle, installs and is connected with the sun gear in the input shaft on the fixed axle stretches into the output cover, and the linkage of rethread planet transmission structure drives the tip rotation of output cover around the fixed axle. The built-in design reduces the whole axial dimension of the planetary gear box, reasonably utilizes the limited installation space and meets the installation requirement of compact places of engineering machinery. The planetary gear box effectively shortens the axial size, and has more compact structure and small volume; the transmission ratio can be increased, and the single-stage transmission ratio is large (the common single-stage transmission ratio can reach 100 and can reach 500 at most); the bearing capacity is large; reliable operation and long service life. The sun wheel drives the big gear of the duplex planet wheel to rotate, and then the big gear of the duplex planet wheel drives the output cover to rotate, so that the requirement of reverse input and output is met. The lubricating hole is formed in the planet shaft, so that the planet bearing in the duplex planet wheel can be ensured to be in an oil supply state all the time, and the planet bearing is still lubricated by oil even when the duplex planet wheel is at the highest point, so that oil film protection is formed. The input shaft drives the sun wheel to rotate, then the sun wheel drives the duplex planet wheels to rotate, and the gear wheels of the duplex planet wheels drive the inner gear ring to rotate, so that the inner gear ring drives the output flange to rotate around the end of the fixed shaft, and the input and output directions are opposite. The output flange, the box cover and the inner gear ring form a cover-shaped structure, the cover-shaped structure and the inner gear ring form an accommodating cavity together with the fixed shaft, and the planetary transmission structure and the sun gear are both positioned in the accommodating cavity so that the planetary gear box forms a built-in structure, so that the planetary gear box is more compact in structure, the bearing capacity is increased, and the overall size is reduced. The middle part of the box cover extends into the planet carrier and is in contact connection with the sun gear through the buffering top ball, so that the sun gear is in a floating structure in the accommodating cavity, and the planet load balancing effect is effectively exerted. A floating oil seal structure is arranged at the joint between the output cover and the fixed shaft and is suitable for floating sealing the output cover and the fixed shaft, so that the sun gear and the planet assembly are in a floating structure, and the planet load balancing effect is effectively exerted.
The components (components without specific structures) selected for use in the present application are all common standard components or components known to those skilled in the art, and the structures and principles thereof can be known to those skilled in the art through technical manuals or through routine experimental methods.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or component to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An internally-concealed planetary gearbox of 3K structure type, comprising:
a stationary shaft (1);
the output cover (4) is rotatably sleeved at one end of the fixed shaft (1), and the inner wall of the output cover is provided with annular teeth;
the input shaft (2) extends into the output cover (4) from the end part of the fixed shaft (1);
the sun gear (3) is fixedly connected with the end part of the input shaft (2) extending into the output cover (4); and
the planetary transmission structure (5) is in tooth fit with the sun gear (3) and the output cover (4); namely that
The input shaft (2) is suitable for driving the sun wheel (3) to rotate so as to drive the output cover (4) to rotate around the end part of the fixed shaft (1) through the planetary transmission structure (5).
2. An internally worn planetary gearbox of the 3K configuration type according to claim 1,
the planetary transmission structure (5) comprises:
the outer gear ring (51) is fixedly arranged at the end part of the fixed shaft (1) close to the output cover (4);
the positioning gear ring (52) is sleeved on the outer side of the outer gear ring (51), and the inner side of the positioning gear ring is meshed with the outer gear ring (51);
the planet component (53) is rotationally arranged on the side wall of the outer gear ring (51) far away from the fixed shaft (1), the positioning part of the planet component is meshed with the inner side of the positioning gear ring (52), and the transmission part of the planet component is meshed with the sun gear (3); and
the transmission part of the planetary assembly (53) is meshed with the annular teeth of the output cover (4).
3. An internal-mounted planetary gearbox of the 3K construction type according to claim 2,
the planetary assembly (53) comprising:
the planet carrier (531) is rotationally arranged on the side wall, away from the fixed shaft (1), of the outer gear ring (51);
a planet shaft (532) fixedly arranged on the planet carrier (531) through a positioning pin (534);
the double planet gears (533) are rotationally arranged on the planet shafts (532), the positioning parts formed by the pinion gears of the double planet gears are meshed with the inner sides of the positioning gear rings (52), and the transmission parts formed by the bull gears of the double planet gears are meshed with the inner sides of the annular teeth of the output cover (4); and
the sun gear (3) penetrates through the planet carrier (531) to be meshed with the large gear of the duplex planet gear (533).
4. The built-in planetary gear box of 3K construction according to claim 3,
at least one planet bearing (6) is arranged between the planet shaft (532) and the duplex planet wheel (533);
the planet shaft (532) is provided with a lubricating hole (7) suitable for supplying oil to the planet bearing (6).
5. An internal-mounted planetary gearbox of the 3K construction type according to claim 3,
and a shaft sleeve (8) is arranged between the duplex planet wheel (533) and the planet carrier (531).
6. The built-in planetary gear box of 3K construction according to claim 2,
the output cover (4) includes:
the output flange (41) is rotatably sleeved at one end of the fixed shaft (1);
the box cover (42) is arranged on one side of the output flange, which is far away from the fixed shaft (1);
and the inner gear ring (43) is fixedly arranged between the end part of the output flange (41) and the box cover (42), and the inner side of the inner gear ring forms the annular tooth which is meshed with the transmission part of the planetary assembly (53).
7. The built-in planetary gear box of 3K construction according to claim 6,
a buffering jacking ball (9) is rotatably arranged on the side surface of the sun wheel (3) far away from the input shaft (2);
the buffering top ball (9) is abutted against the inner wall of the box cover (42).
8. An internal-mounted planetary gearbox of the 3K construction type according to claim 2,
at least one corner bearing (10) is arranged between the output cover (4) and the fixed shaft (1);
the angle bearing (10) is connected with the outer gear ring (51) through a distance ring (11).
9. The built-in planetary gear box of 3K construction according to claim 1,
and a floating oil seal structure (12) suitable for floating seal is arranged at the joint between the output cover (4) and the fixed shaft (1).
10. The built-in planetary gear box of 3K construction according to claim 9,
the floating oil seal structure (12) includes:
the floating oil seal seat (121) is sleeved at one end of the fixed shaft (1);
the O-shaped ring (122) is sleeved on the outer side of the floating oil seal seat (121) and is abutted against the inner wall of the output cover (4);
one floating assembly (123) of the pair of connected floating assemblies (123) is abutted with the floating oil seal seat (121), and the other floating assembly (123) of the pair of connected floating assemblies is abutted with the fixed shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221767827.1U CN217583050U (en) | 2022-07-07 | 2022-07-07 | Built-in planetary gear box of 3K structure type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221767827.1U CN217583050U (en) | 2022-07-07 | 2022-07-07 | Built-in planetary gear box of 3K structure type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217583050U true CN217583050U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221767827.1U Active CN217583050U (en) | 2022-07-07 | 2022-07-07 | Built-in planetary gear box of 3K structure type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217583050U (en) |
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2022
- 2022-07-07 CN CN202221767827.1U patent/CN217583050U/en active Active
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