Marine electrically-driven cabin opening device

Abstract

The invention relates to the technical field of ships, and discloses a marine electric drive cabin opening device which comprises an inner rotor motor comprising an outer shell, an outer stator and an inner rotor, the planetary reducer comprises a first planetary speed reduction assembly, a second planetary speed reduction assembly and a third planetary speed reduction assembly which are sequentially connected in a speed reduction mode, the first planetary speed reduction assembly comprises a first shell and a first planetary gear set arranged on the first shell, the inner rotor is in transmission connection with the first planetary gear set, and one end of the first shell is covered with a first supporting disc; the first supporting disc covers the opening of the outer shell, the first supporting disc and the second supporting disc are in rotatable supporting fit with the first planetary gear set, and the first supporting disc is of a magnetic isolation disc-shaped structure. The mechanical and electrical integration fusion design is adopted, high torque output can be achieved, the first supporting disc and the second supporting disc share radial loads, inter-tooth impact can be reduced, the service life is prolonged, pure electric drive is achieved, hydraulic oil is not needed, and energy saving and low carbon emission are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a ship-used electrically driven cabin opening device. Background Art

[0002] Many of the original equipment on ships are in outdated operating modes that are both energy-intensive and environmentally unfriendly, and are in urgent need of upgrading.

[0003] Specifically, the hatch opening device of a ship is an important part of the ship. At present, the hatch opening device of a ship relies on an electrically driven hydraulic pump to generate high-pressure oil, which then drives the relevant equipment to operate. There are many problems: first, the energy conversion links of the hydraulic drive device are numerous, resulting in great energy loss; second, the hatch opening points of the ship are distributed, the hydraulic pipelines are extremely complex, and the hydraulic oil of the supporting hydraulic drive device has a high risk of contamination; third, there are many auxiliary equipment corresponding to the hydraulic drive, the hydraulic control links are complex, and the failure rate is quite high.

[0004] In view of this, it is necessary to provide a marine electric-driven hatch opening device, which has a simple structure and low manufacturing cost, and at the same time will not cause pollution due to oil leakage, which is beneficial to energy saving and environmental protection. Summary of the invention

[0005] Based on this, it is necessary to provide a marine electric-driven hatch opening device to address the existing problems. The device has a simple structure and low manufacturing cost, and does not cause pollution due to oil leakage, which is beneficial to energy conservation and environmental protection.

[0006] The present application provides a marine electric drive cabin opening device, which comprises:

[0007] An inner rotor motor comprises an outer shell with an opening at one end and an outer stator and an inner rotor arranged on the outer shell;

[0008] A planetary reducer comprises a first planetary reduction assembly, a second planetary reduction assembly and a third planetary reduction assembly which are connected in sequence with a reduction transmission. The first planetary reduction assembly comprises a first shell with openings at both ends and a first planetary gear set arranged on the first shell. The inner rotor is transmission-connected to the first planetary gear set. An end cover of the first shell is provided with a first support plate, and the other end cover is provided with a second support plate. The first support plate covers the opening of the outer shell. The first support plate and the second support plate are respectively rotatably supported by the first planetary gear set, and the first support plate is a disk-shaped structure.

[0009] In some embodiments, the first planetary gear set includes:

[0010] First planet carrier;

[0011] A first planetary gear rotatably disposed on the first planetary carrier;

[0012] a first sun gear meshing with the first planet gear;

[0013] A first input shaft, coaxially fixed with the first sun gear;

[0014] A first inner gear ring, wherein the inner wall of the first housing is formed with the first inner gear ring, and the first inner gear ring is meshed with the first planetary gear;

[0015] Among them, one end of the first input shaft is rotatably matched with the first support plate through a first sleeve, and the other end is rotatably matched with the first planet carrier through a second sleeve. The first planet carrier is rotatably mounted on the second support plate through a third sleeve.

[0016] In some embodiments, the second planetary reduction assembly comprises:

[0017] A second sub-shell having openings at both ends;

[0018] a second planetary gear set, disposed in the second sub-housing, the second planetary gear set comprising a second planet carrier, a second planetary gear rotatably disposed in the second planet carrier, a second sun gear meshing with the second planetary gear, a second input shaft coaxially fixed with the second sun gear, and a second inner gear ring formed on the inner wall of the second sub-housing, the second inner gear ring meshing with the second planetary gear;

[0019] Among them, the second support plate cover is arranged at one end of the second sub-housing, and the other end cover of the second sub-housing is provided with a third support plate, the second support plate and the third support plate are respectively rotatably supported and matched with the second planetary gear set, the third planetary reduction assembly is installed and matched with the third support plate, one end of the second input shaft is coaxially fixed with the first planet carrier, and the other end is rotatably matched with the second planet carrier through a fourth sleeve, and the second planet carrier is rotatably installed on the third support plate through a fifth sleeve.

[0020] In some embodiments, the second support plate is provided with a plurality of first through holes, and the first through holes connect the inner cavity of the first shell with the inner cavity of the second sub-shell.

[0021] In some embodiments, the third planetary reduction assembly comprises:

[0022] a third sub-shell having openings at both ends;

[0023] a third planetary gear set, disposed in the third sub-housing, the third planetary gear set comprising a third planet carrier, a third planetary gear rotatably disposed in the third planet carrier, a third sun gear meshed with the third planetary gear, a third input shaft coaxially fixed with the third sun gear, and a third inner gear ring formed on the inner wall of the third sub-housing, the third inner gear ring meshing with the third planetary gear;

[0024] Among them, the third support plate cover is arranged at one end of the third sub-housing, and the other end cover of the third sub-housing is provided with a flange end cover, the third support plate and the flange end cover are respectively rotatably supported and matched with the third planetary gear set, and the output end of the third planetary gear set is used to output rotational power, one end of the third input shaft is coaxially fixed with the second planetary carrier, and the other end is rotatably matched with the third planetary carrier through a sixth bushing, the third planetary carrier is rotatably mounted on the flange end cover through a seventh bushing, and the third planetary carrier is integrally formed with a tapered shaft passing through the flange end cover.

[0025] In some embodiments, the third planetary gear set further includes:

[0026] A plurality of rolling wheels, each of which is rotatably mounted on the third planet carrier and arranged in a circular array around the third input shaft;

[0027] The inner wall of the third sub-shell is also formed with a circular track surrounding the plurality of rolling wheels, and each of the rolling wheels is respectively in rolling cooperation with the circular track.

[0028] In some embodiments, the third support plate is provided with a plurality of second through holes, and the second through holes connect the inner cavity of the second sub-shell with the inner cavity of the third sub-shell.

[0029] In some embodiments, the marine electric drive cabin opening device further comprises:

[0030] A magnetic isolation protective shell, which is arranged on the planetary reducer and covers the inner rotor motor;

[0031] A cooling fan, wherein one end of the inner rotor facing away from the planetary reducer extends out of the outer housing and is equipped with the cooling fan;

[0032] The magnetic isolation protective shell is provided with an air intake hole and an air exhaust hole, the air intake hole is directly opposite to the cooling fan along the axial direction of the cooling fan, and the air exhaust hole is located in the radial direction of the cooling fan.

[0033] In some embodiments, the outer wall of the outer shell is convexly formed with a first warehouse body portion and a second warehouse body portion, the first warehouse body portion accommodates a power control component, and the second warehouse body portion accommodates a servo control component;

[0034] The outer peripheral wall of the outer shell is also protruded to form a plurality of heat-conducting fin portions, the first warehouse body portion and the second warehouse body portion are arranged at intervals, and the heat-conducting fin portion is arranged between the first warehouse body portion and the second warehouse body portion.

[0035] In some embodiments, the exhaust hole is a centrifugal fan, and an annular inserting tube portion is convexly provided in the magnetic shielding protective shell, and the annular inserting tube portion is inserted and sleeved on the outer shell;

[0036] Among them, the annular insert tube portion divides the interior of the magnetic isolation protective shell into a first internal space located inside the annular insert tube portion and a second internal space located outside the annular insert tube portion, the cooling fan is accommodated in the first internal space, the annular insert tube portion has a side wall facing away from the exhaust hole, and an air guide hole is opened on the side wall of the annular insert tube portion facing away from the exhaust hole, and the exhaust hole is connected to the exhaust hole through the first internal space, the air guide hole and the second internal space in sequence.

[0037] Beneficial effects of the present invention:

[0038] The marine electric-driven cabin opening device of the present invention comprises an inner rotor motor and a planetary reducer, wherein the inner rotor motor comprises an outer shell body with an opening at one end and an outer stator and an inner rotor arranged on the outer shell body; the planetary reducer comprises a first planetary reduction assembly, a second planetary reduction assembly and a third planetary reduction assembly which are sequentially reduced in speed transmission connection, wherein the first planetary reduction assembly comprises a first shell body with openings at both ends and a first planetary gear set arranged on the first shell body, wherein the inner rotor is transmission-connected to the first planetary gear set, wherein an end cover of the first shell body is provided with a first support plate, and the other end cover of the first shell body is provided with a second support plate, wherein the first support plate covers the opening of the outer shell body, wherein the first support plate and the second support plate are respectively rotatably supported and matched with the first planetary gear set, and wherein the first support plate is a disk-shaped structure having a partition plate. Its advantages are that the inner rotor motor and the planetary reducer adopt a mechatronic fusion design. Specifically, the outer shell of the inner rotor motor does not have an end cover, and the first support plate is fixedly connected to the outer shell and covers the opening, which can realize structural integrated design and reduce the number of parts; the inner rotor motor cooperates with the planetary reducer to output the third reduction power, which can achieve high power and high torque output; in addition, the first support plate and the second support plate are respectively rotatably matched with the first planetary gear set, thereby sharing the radial load of the first planetary gear set. After the first planetary gear set is accurately positioned, the inter-tooth gap is constant, which can reduce the inter-tooth impact and noise, which is conducive to improving the service life; moreover, the inner rotor motor is directly driven without the need for hydraulic oil related matching, which is conducive to low carbon emissions; at the same time, compared with the hydraulic method, the inner rotor motor is directly driven, which can reduce the energy conversion process and reduce the energy loss in the energy conversion link, which is conducive to energy saving. In addition, the first support plate is a disk-shaped structure, which plays a role in isolating the magnetism of the inner rotor, thereby inhibiting its magnetization pollution to the first planetary reduction assembly, the second planetary reduction assembly and the third planetary reduction assembly. In addition, the magnetic field distribution of the inner rotor motor is concentrated, the energy conversion efficiency is high, and the overall structure is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A three-dimensional schematic diagram of a marine electric-driven cabin opening device provided for some embodiments of the present application;

[0041] Figure 2 for Figure 1 A schematic cross-sectional view of the electric-driven hatch opening device of a ship along the BB direction;

[0042] Figure 3 A disassembly diagram of a marine electric drive cabin opening device provided for some embodiments of the present application;

[0043] Figure 4 A three-dimensional schematic diagram of an inner rotor motor and a cooling fan of a marine electric drive hatch opening device provided in some embodiments of the present application;

[0044] Figure 5 A three-dimensional schematic diagram of a magnetic-isolating protective shell of a marine electric-driven cabin opening device provided in some embodiments of the present application.

[0045] Reference numerals:

[0046] 1. inner rotor motor; 11. outer shell; 111. heat conducting fin plate; 112. first silo body; 113. second silo body; 12. outer stator; 13. inner rotor;

[0047] 2. Planetary reducer;

[0048] 21. first planetary reduction assembly; 211. first housing; 212. first planetary gear set; 2121. first planet carrier; 2122. first planetary gear; 2123. first sun gear; 2124. first input shaft; 2125. first inner gear ring; 2126. first sleeve; 2127. second sleeve; 2128. third sleeve; 213. first support plate; 214. second support plate; 2141. first through hole;

[0049] 22, second planetary reduction assembly; 221, second sub-housing; 222, second planetary gear set; 2221, second planet carrier; 2222, second planetary gear; 2223, second sun gear; 2224, second input shaft; 2225, second inner gear ring; 2226, fourth shaft sleeve; 2227, fifth shaft sleeve; 223, third support plate; 2231, second through hole;

[0050] 23. The third planetary reduction assembly; 231. The third sub-housing; 2311. The circular track; 232. The third planetary gear set; 2321. The third planet carrier; 2322. The third planetary gear; 2323. The third sun gear; 2324. The third input shaft; 2325. The third inner gear ring; 2326. The sixth shaft sleeve; 2327. The seventh shaft sleeve; 2328. The tapered shaft; 2329. The rolling wheel; 233. The flange end cover;

[0051] 3. Magnetic isolation protective shell; 31. Ventilation hole; 32. Exhaust hole; 33. Annular insert tube; 331. Air guide hole; 34. First internal space; 35. Second internal space;

[0052] 4. Cooling fan. DETAILED DESCRIPTION

[0053] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and limited, a feature "above" or "below" a second feature may be in direct contact with the second feature, or in indirect contact with the second feature through an intermediate medium. Moreover, a feature "above", "above" and "above" a second feature may mean that the feature is directly above or obliquely above the second feature, or simply means that the feature is higher in level than the second feature. A feature "below", "below" and "below" a second feature may mean that the feature is directly below or obliquely below the second feature, or simply means that the feature is lower in level than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0059] refer to Figure 1-5 The embodiment of the present application provides a marine electric-driven cabin opening device, which includes an inner rotor motor 1 and a planetary reducer 2. The inner rotor motor 1 includes an outer shell 11 with an opening at one end, an outer stator 12 fixed in the outer shell 11, and an inner rotor 13 rotatably arranged in the outer shell 11, and the inner rotor 13 has an output end extending out of the opening; the planetary reducer 2 includes a first planetary reduction assembly 21, a second planetary reduction assembly 22, and a third planetary reduction assembly 23 connected in a sequential reduction transmission; wherein the first planetary reduction assembly 21 includes a first shell 211 with openings at both ends and a first planetary gear set 212 arranged in the first shell 211, and the output end is transmission-connected with the first planetary gear set 212, and one end cover of the first shell 211 is provided with a first support disk 213, and the other end cover is provided with a second support disk 214, the first support disk 213 is fixedly connected to the outer shell 11 and covers the opening, and the first support disk 213 and the second support disk 214 are respectively rotatably supported and matched with the first planetary gear set 212.

[0060] Compared with the traditional motor with hydraulic drive, the inner rotor motor 1 and the planetary reducer 2 of the marine electric drive hatch opening device of the embodiment of the present application adopt a mechatronic fusion design. The outer shell 11 of the inner rotor motor 1 does not have an end cover. The first support plate 213 is fixedly connected to the outer shell 11 and covers the opening to achieve sealing, which can realize structural integrated design and reduce the number of parts. The inner rotor motor 1 cooperates with the planetary reducer 2 to output the third reduction power, which can achieve high power and high torque output. In addition, the first support plate 213 and the second support plate 214 are respectively rotatably matched with the first planetary gear set 212, thereby sharing the first planetary gear set 212. The radial load of the first planetary gear set 212 is precisely positioned, and the inter-tooth clearance is constant, which can reduce the inter-tooth impact and noise, and is conducive to improving the service life; moreover, the inner rotor motor 1 is directly driven, and no hydraulic oil related matching is required, which is conducive to low carbon emissions; at the same time, the inner rotor motor 1 is directly driven, which can reduce the energy conversion process and the energy loss in the energy conversion link compared with the hydraulic drive, which is conducive to energy saving; in addition, the first support disk 213 is a disk-shaped structure that isolates the magnetism of the inner rotor 13, thereby inhibiting its magnetization pollution to the first planetary reduction assembly 21, the second planetary reduction assembly 22 and the third planetary reduction assembly 23. In addition, the magnetic field distribution of the inner rotor motor 1 is concentrated, the energy conversion efficiency is high, and the overall structure is compact.

[0061] refer to Figure 1-5In some embodiments, the first planetary gear set 212 includes a first planet carrier 2121, a first planetary gear 2122, a first sun gear 2123, a first input shaft 2124, a first inner gear ring 2125, a first sleeve 2126, a second sleeve 2127, and a third sleeve 2128; the first planetary gear 2122 is rotatably disposed on the first planet carrier 2121; the first sun gear 2123 is meshed with the first planetary gear 2122; the first input shaft 2124 is meshed with the first sun gear 212 3 is coaxially fixed; the inner wall of the first housing 211 is formed with a first inner gear ring 2125, and the first inner gear ring 2125 is meshed with the first planetary gear 2122; wherein, one end of the first input shaft 2124 is rotatably matched with the first support disk 213 through the first sleeve 2126, and the other end of the first input shaft 2124 is rotatably matched with the first planetary carrier 2121 through the second sleeve 2127, and the first planetary carrier 2121 is rotatably mounted on the second support disk 214 through the third sleeve 2128. Specifically, the first sun gear 2123 and the first input shaft 2124 can be key-connected or integrally formed. By adopting the first sleeve 2126, the second sleeve 2127 and the third sleeve 2128, the rotatable support and cooperation between the first planetary carrier 2121, the first input shaft 2124 and the corresponding first support disk 213 and the second support disk 214 can be achieved, thereby sharing the radial load of the first planetary gear set 212, reducing the impact between the teeth, reducing the noise, and improving the service life. The inner wall of the first housing 211 is formed with a first inner gear ring 2125 , which adopts an integrated structure, can reduce the number of parts, has a high degree of integration, and simplifies the assembly process.

[0062] In some embodiments, reference Figure 1-5 The second planetary reduction assembly 22 includes a second sub-housing 221 with openings at both ends and a second planetary gear set 222 disposed on the second sub-housing 221. The first planet carrier 2121 is connected to the second planetary gear set 222 by reduction transmission. The second support disk 214 is covered at one end of the second sub-housing 221. The other end cover of the second sub-housing 221 is provided with a third support disk 223. The second support disk 214 and the third support disk 223 are respectively rotatably supported and matched with the second planetary gear set 222. The third planetary reduction assembly 23 is disposed on the third support disk 223. Similarly, the second support disk 214 and the third support disk 223 are respectively rotatably supported and matched with the second planetary gear set 222, which can also share the radial load of the second planetary gear set 222, further reduce the impact between teeth, reduce noise, and further improve the service life. The first planet carrier 2121 is connected to the second planetary gear set 222 by reduction transmission, and the second reduction is achieved through the second planetary gear set 222, which is conducive to further improving the output torque.

[0063] refer to Figure 1-5In some embodiments, the second planetary gear set 222 includes a second planetary carrier 2221, a second planetary gear 2222, a second sun gear 2223, a second input shaft 2224, a second inner gear ring 2225, a fourth shaft sleeve 2226 and a fifth shaft sleeve 2227; the second planetary gear 2222 is rotatably arranged on the second planetary carrier 2221; the second sun gear 2223 is meshed with the second planetary gear 2222; the second input shaft 2224 is coaxially fixed with the second sun gear 2223; the inner wall of the second sub-housing 221 is formed with a second inner gear ring 2225, and the second inner gear ring 2225 is meshed with the second planetary gear 2222; wherein, one end of the second input shaft 2224 is coaxially fixed with the first planetary carrier 2121, and the other end of the second input shaft 2224 is rotatably matched with the second planetary carrier 2221 through the fourth shaft sleeve 2226, and the second planetary carrier 2221 is rotatably installed on the third support plate 223 through the fifth shaft sleeve 2227.

[0064] Similarly, the second sun gear 2223 and the second input shaft 2224 can be key-connected or integrally formed. In addition, the second planetary carrier 2221, the second input shaft 2224 and the corresponding third support disk 223 are rotatably supported by the fourth sleeve 2226 and the fifth sleeve 2227. The second input shaft 2224 is coaxially fixedly connected to the first planetary carrier 2121. The first planetary carrier 2121 and the second support disk 214 are rotatably matched by the third sleeve 2128, which is equivalent to the second support disk 214 indirectly rotatably supporting the second input shaft 2224, that is, the second planetary gear set 222 is supported as a whole, which can share the radial load of the second planetary gear set 222, reduce the impact between teeth, reduce noise, and improve the service life. Similarly, the inner wall of the second sub-housing 221 is formed with a second inner gear ring 2225, which adopts an integrally formed structure, can simplify the number of parts, high integration, and simplify the assembly process.

[0065] In some embodiments, reference Figure 1-5The third planetary reduction assembly 23 includes a third sub-housing 231 with openings at both ends and a third planetary gear set 232 disposed on the third sub-housing 231. The second planet carrier 2221 is connected to the third planetary gear set 232 by reduction transmission. The third support plate 223 is covered at one end of the third sub-housing 231. The other end cover of the third sub-housing 231 is provided with a flange end cover 233. The third support plate 223 and the flange end cover 233 are respectively matched with the rotatable support of the third planetary gear set 232. The output end of the third planetary gear set 232 is used to output rotational power. Similarly, the third support plate 223 and the flange end cover 233 are respectively matched with the rotatable support of the third planetary gear set 232, which can also share the radial load of the third planetary gear set 232, thereby further reducing the impact between teeth, reducing noise, and further improving the service life. The second planet carrier 2221 is connected to the third planetary gear set 232 by reduction transmission. The third reduction is achieved through the third planetary gear set 232, which is conducive to further improving the output torque.

[0066] refer to Figure 1-5 In some embodiments, the third planetary gear set 232 includes a third planet carrier 2321, a third planetary gear 2322, a third sun gear 2323, a third input shaft 2324, a third inner gear ring 2325, a sixth shaft sleeve 2326 and a seventh shaft sleeve 2327; the third planetary gear 2322 is rotatably arranged on the third planet carrier 2321; the third sun gear 2323 is meshed with the third planetary gear 2322; the third input shaft 2324 is coaxially fixed with the third sun gear 2323; the inner wall of the third sub-housing 231 is formed with a third inner gear ring Ring 2325, the third inner gear ring 2325 is meshed with the third planetary gear 2322; wherein, one end of the third input shaft 2324 is coaxially fixed with the second planetary carrier 2221, and the other end of the third input shaft 2324 is rotatably matched with the third planetary carrier 2321 through a sixth shaft sleeve 2326, and the third planetary carrier 2321 is rotatably installed on the flange end cover 233 through a seventh shaft sleeve 2327, and the third planetary carrier 2321 is integrally formed with a tapered shaft 2328 that penetrates the flange end cover 233, and the tapered shaft 2328 is used to output rotational power.

[0067] Similarly, the third sun gear 2323 and the third input shaft 2324 can be key-connected or integrally formed. In addition, the rotatable support and cooperation between the third planetary carrier 2321, the third input shaft 2324 and the corresponding flange end cover 233 are realized by adopting the sixth shaft sleeve 2326 and the seventh shaft sleeve 2327. Specifically, the third planetary carrier 2321 and the flange end cover 233 are rotatably matched through the seventh shaft sleeve 2327, the third input shaft 2324 and the flange end cover 233 are rotatably matched through the sixth shaft sleeve 2326, the third input shaft 2324 is coaxially fixedly connected with the second planetary carrier 2221, and the second planetary carrier 2221 and the third support plate 223 are rotatably matched through the fifth shaft sleeve 2227, which is equivalent to the third support plate 223 indirectly realizing rotatable support for the third input shaft 2324, that is, the whole forms support for the third planetary gear set 232, which can share the radial load of the third planetary gear set 232, reduce the impact between teeth, reduce noise, and improve the service life. Similarly, the inner wall of the third sub-housing 231 is formed with a third inner gear ring 2325, which adopts an integrated molding structure, can reduce the number of parts, has a high degree of integration, and simplifies the assembly process.

[0068] Further, refer to Figure 1-5 In some embodiments, the third planetary gear set 232 also includes a plurality of rolling wheels 2329, each of which is rotatably mounted on the third planetary carrier 2321 and is arranged in a circular array around the third input shaft 2324; wherein, the inner wall of the third sub-housing 231 is also formed with a circular track 2311 surrounding the plurality of rolling wheels 2329, and each of the rolling wheels 2329 is respectively rollingly matched with the circular track 2311, so that the third sub-housing 231 can further rotatably support the third planetary carrier 2321, thereby making it more stable and reliable.

[0069] refer to Figure 1-5 In some embodiments, the second support plate 214 is provided with a plurality of first through holes 2141, and the first through holes 2141 connect the inner cavity of the first shell 211 with the inner cavity of the second sub-shell 221. Such a design allows the lubricant to flow freely between the inner cavity of the first shell 211 and the inner cavity of the second sub-shell 221 for lubrication when lubricating and filling.

[0070] Similarly, in some embodiments, the third support plate 223 is provided with a plurality of second through holes 2231, and the second through holes 2231 connect the inner cavity of the second sub-shell 221 with the inner cavity of the third sub-shell 231. Such a design allows the lubricant to flow freely between the inner cavity of the second sub-shell 221 and the inner cavity of the third sub-shell 231 for lubrication when lubricant is filled.

[0071] In some embodiments, reference Figure 1-5The marine electric drive opening device also includes a magnetic shielding protective shell 3 and a cooling fan 4. The magnetic shielding protective shell 3 is arranged on the planetary reducer 2 and covers the inner rotor motor 1. On the one hand, the magnetic shielding protective shell 3 plays a protective role, and on the other hand, the magnetic shielding protective shell 3 plays a role of magnetic isolation, which inhibits the magnetization influence of the permanent magnet of the inner rotor 13 on other parts. The end of the inner rotor 13 facing away from the planetary reducer 2 extends out of the outer shell 11 and is equipped with a cooling fan 4, so that the rotation of the inner rotor 13 synchronously drives the cooling fan 4 to rotate, so as to achieve air blowing and heat dissipation; specifically, the magnetic shielding protective shell 3 is provided with an exhaust hole 31 and an exhaust hole 32, the exhaust hole 31 is directly opposite to the cooling fan 4 along the axial direction of the cooling fan 4, and the exhaust hole 32 is located in the radial direction of the cooling fan 4. The cooling fan 4 can be an existing structure, which can suck the external air into the magnetic shielding protective shell 3 through the exhaust hole 31 to blow and dissipate the heat to the outer shell 11, and discharge the hot air through the exhaust hole 32.

[0072] In some embodiments, reference Figure 1-5 The outer wall of the outer shell 11 is convexly formed with a first warehouse body part 112 and a second warehouse body part 113, the first warehouse body part 112 accommodates a power control component, and the second warehouse body part 113 accommodates a servo control component, which has a compact structure and high integration, and belongs to a new type of motor structure; in addition, the power control component and the servo control component can refer to the electric vehicle drive module, and the speed regulation linearity is good, and the low-speed large torque load is stable; further, the outer peripheral wall of the outer shell 11 is also convexly formed with a plurality of heat-conducting fin parts 111, the first warehouse body part 112 and the second warehouse body part 113 are arranged at intervals, and the heat-conducting fin part 111 is arranged between the first warehouse body part 112 and the second warehouse body part 113, thereby increasing the heat dissipation area through the heat-conducting fin part 111 and accelerating the heat dissipation, and the heat-conducting fin part 111 is arranged between the first warehouse body part 112 and the second warehouse body part 113, so that the first warehouse body part 112 and the second warehouse body part 113 are arranged at intervals for heat dissipation, which is conducive to reducing excessive concentration of heat in one part, and can dissipate heat better and faster.

[0073] In addition, in some embodiments, the inner rotor motor 1 can be combined with AC frequency conversion and rectified DC speed regulation to provide options.

[0074] In some embodiments, reference Figure 1-5, the exhaust hole 31 is a centrifugal fan, and an annular insert tube portion 33 is convexly provided inside the magnetic shielding protective shell 3, and the annular insert tube portion 33 is inserted and sleeved on the outer shell 11; wherein, the annular insert tube portion 33 divides the interior of the magnetic shielding protective shell 3 into a first internal space 34 located inside the annular insert tube portion 33 and a second internal space 35 located outside the annular insert tube portion 33, and the heat dissipation fan 4 is accommodated in the first internal space 34, and the annular insert tube portion 33 has a side wall facing away from the exhaust hole 32, and an air guide hole 331 is provided on the side wall of the annular insert tube portion 33 facing away from the exhaust hole 32, and the exhaust hole 31 is connected to the exhaust hole 32 through the first internal space 34, the air guide hole 331, and the second internal space 35 in sequence. When heat dissipation is performed, this design structure can effectively increase the flow path of wind, thereby increasing the heat dissipation effect, and realizing more comprehensive and efficient heat dissipation of the inner rotor motor 1.

[0075] In addition, reference Figure 2 and Figure 4 In some embodiments, a manual drive jack 131 is provided at one end of the inner rotor 13 of the marine electric drive module where the cooling fan 4 is installed. When the marine electric drive module fails to be electrically driven, the magnetic shielding shell 3 can be removed, and then the existing rotating swing rod can be inserted into the manual drive jack 131 for emergency manual rotation. The rotating swing rod is an existing auxiliary tool and will not be described in detail. The manual drive jack 131 can be a hexagonal prism hole or a prism hole of other shapes.

[0076] The marine electric drive hatch opening device provided in the embodiment of the present application can adjust the reduction ratio and the power size design of the inner rotor motor 1 to achieve a maximum output torque of 17000 N.m, which can meet the needs of general hatch opening driving force. In addition, the structural form can be expanded and designed when multi-purpose is required, such as further changing the reduction ratio and further changing the input motor power.

[0077] Finally, it should be noted that the various technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A marine electric drive hatch opening device, characterized in that: include: An inner rotor motor (1) comprises an outer shell (11) with an opening at one end, an outer stator (12) and an inner rotor (13) arranged on the outer shell (11); A planetary reducer (2) comprises a first planetary reduction assembly (21), a second planetary reduction assembly (22) and a third planetary reduction assembly (23) which are connected in a sequential reduction transmission. The first planetary reduction assembly (21) comprises a first housing (211) with openings at both ends and a first planetary gear set (212) arranged on the first housing (211). The inner rotor (13) is transmission-connected to the first planetary gear set (212). One end cover of the first housing (211) is provided with a first support disk (213), and the other end cover is provided with a second support disk (214). The first support disk (213) covers the opening of the outer housing (11). The first support disk (213) and the second support disk (214) are respectively rotatably supported by the first planetary gear set (212). The first support disk (213) is a disk-shaped structure.

2. The marine electric drive hatch opening device according to claim 1, characterized in that: The first planetary gear set (212) includes: First planet carrier (2121); A first planetary gear (2122) rotatably disposed on the first planetary carrier (2121); A first sun gear (2123) meshing with the first planet gear (2122); A first input shaft (2124) is coaxially fixed with the first sun gear (2123); A first inner gear ring (2125), wherein the inner wall of the first housing (211) is formed with the first inner gear ring (2125), and the first inner gear ring (2125) is meshed with the first planetary gear (2122); One end of the first input shaft (2124) is rotatably engaged with the first support plate (213) via a first sleeve (2126), and the other end is rotatably engaged with the first planet carrier (2121) via a second sleeve (2127); the first planet carrier (2121) is rotatably mounted on the second support plate (214) via a third sleeve (2128).

3. The ship electric drive hatch opening device according to claim 2, characterized in that: The second planetary reduction assembly (22) comprises: A second sub-shell (221) having openings at both ends; A second planetary gear set (222) is arranged on the second sub-housing (221), the second planetary gear set (222) comprises a second planet carrier (2221), a second planetary gear (2222) rotatably arranged on the second planet carrier (2221), a second sun gear (2223) meshing with the second planetary gear (2222), a second input shaft (2224) coaxially fixed with the second sun gear (2223), and a second inner gear ring (2225) formed on the inner wall of the second sub-housing (221), the second inner gear ring (2225) meshing with the second planetary gear (2222); The second support plate (214) is covered at one end of the second sub-housing (221), and the other end cover of the second sub-housing (221) is provided with a third support plate (223); the second support plate (214) and the third support plate (223) are respectively rotatably supported and matched with the second planetary gear set (222); the third planetary reduction assembly (23) is installed and matched with the third support plate (223); one end of the second input shaft (2224) is coaxially fixed with the first planet carrier (2121), and the other end is rotatably matched with the second planet carrier (2221) through a fourth shaft sleeve (2226); the second planet carrier (2221) is rotatably installed on the third support plate (223) through a fifth shaft sleeve (2227).

4. The ship electric drive hatch opening device according to claim 3, characterized in that: The second support plate (214) is provided with a plurality of first through holes (2141), and the first through holes (2141) connect the inner cavity of the first shell (211) with the inner cavity of the second sub-shell (221).

5. The ship electric drive hatch opening device according to claim 3, characterized in that: The third planetary reduction assembly (23) comprises: A third sub-shell (231) having openings at both ends; A third planetary gear set (232) is arranged on the third sub-housing (231), the third planetary gear set (232) comprises a third planet carrier (2321), a third planetary gear (2322) rotatably arranged on the third planet carrier (2321), a third sun gear (2323) meshing with the third planetary gear (2322), a third input shaft (2324) coaxially fixed with the third sun gear (2323), and a third inner gear ring (2325) formed on the inner wall of the third sub-housing (231), the third inner gear ring (2325) meshing with the third planetary gear (2322); The third support plate (223) is covered at one end of the third sub-housing (231), and the other end cover of the third sub-housing (231) is provided with a flange end cover (233). The third support plate (223) and the flange end cover (233) are respectively rotatably supported and matched with the third planetary gear set (232). The output end of the third planetary gear set (232) is used to output rotational power. One end of the third input shaft (2324) is coaxially fixed with the second planet carrier (2221), and the other end is rotatably matched with the third planet carrier (2321) through a sixth shaft sleeve (2326). The third planet carrier (2321) is rotatably mounted on the flange end cover (233) through a seventh shaft sleeve (2327). The third planet carrier (2321) is integrally formed with a tapered shaft (2328) that passes through the flange end cover (233).

6. The ship electric drive hatch opening device according to claim 5, characterized in that: The third planetary gear set (232) further includes: a plurality of rolling wheels (2329), each of the rolling wheels (2329) being rotatably mounted on the third planet carrier (2321) and arranged at intervals in a circular array around the third input shaft (2324); The inner wall of the third sub-shell (231) is also formed with a circular track (2311) surrounding the plurality of rolling wheels (2329), and each of the rolling wheels (2329) is respectively in rolling cooperation with the circular track (2311).

7. The ship electric drive hatch opening device according to claim 5, characterized in that: The third support plate (223) is provided with a plurality of second through holes (2231), and the second through holes (2231) connect the inner cavity of the second sub-shell (221) with the inner cavity of the third sub-shell (231).

8. The electrically driven ship opening device according to claim 1, characterized in that: The marine electric drive cabin opening device also includes: A magnetic isolation protective shell (3), the magnetic isolation protective shell (3) being arranged on the planetary reducer (2) and covering the inner rotor motor (1); A cooling fan (4), wherein one end of the inner rotor (13) facing away from the planetary reducer (2) extends out of the outer housing (11) and is provided with the cooling fan (4); The magnetic shielding shell (3) is provided with an air intake hole (31) and an air exhaust hole (32); the air intake hole (31) is directly opposite to the cooling fan (4) along the axial direction of the cooling fan (4); and the air exhaust hole (32) is located in the radial direction of the cooling fan (4).

9. The ship electric drive hatch opening device according to claim 8, characterized in that: The outer wall of the outer shell (11) is convexly formed with a first chamber body portion (112) and a second chamber body portion (113); the first chamber body portion (112) accommodates a power control component, and the second chamber body portion (113) accommodates a servo control component; The outer peripheral wall of the outer shell (11) is also protruded to form a plurality of heat-conducting fin portions (111), the first bin body portion (112) and the second bin body portion (113) are arranged at intervals, and the heat-conducting fin portion (111) is arranged between the first bin body portion (112) and the second bin body portion (113).

10. The ship electric drive hatch opening device according to claim 9, characterized in that: The air exhaust hole (31) is a centrifugal fan, and an annular inserting tube portion (33) is convexly provided inside the magnetic shielding protective shell (3), and the annular inserting tube portion (33) is inserted and sleeved on the outer shell (11); The annular insert tube portion (33) divides the interior of the magnetic shielding shell (3) into a first internal space (34) located inside the annular insert tube portion (33) and a second internal space (35) located outside the annular insert tube portion (33); the cooling fan (4) is accommodated in the first internal space (34); the annular insert tube portion (33) has a side wall facing away from the exhaust hole (32); an air guide hole (331) is provided on the side wall of the annular insert tube portion (33) facing away from the exhaust hole (32); the exhaust hole (31) is connected to the exhaust hole (32) in sequence through the first internal space (34), the air guide hole (331) and the second internal space (35).

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