A host cartridge

Abstract

The application provides a host box, comprising: a main body part, the main body part comprising a main oil passage arranged annularly along the periphery; a tail transmission unit, the tail transmission unit being arranged at one end of the main body part, the bottom of the tail transmission unit being provided with an oil tank, the main oil passage and the oil tank being communicated; a first mounting part, the first mounting part being located inside the main body part, the first mounting part comprising a main bearing mounting part and a secondary bearing mounting part, the first mounting part being provided with a first branch oil passage and a second branch oil passage; the main body part further comprising an upper box oil inlet passage extending from the main oil passage to the upper end face, a lower box oil inlet passage extending from the main oil passage to the lower end face, and a tail transmission unit lubricating oil passage extending from the main oil passage to the tail transmission unit. The application combines ring-down lubrication and nozzle fixed-point lubrication by arranging an internal oil passage, and precisely controls the lubricating oil amount of each lubricated part.

Description

Technical Field

[0001] This invention relates to the field of helicopter technology, and in particular to a main engine housing. Background Technology

[0002] In existing technologies, helicopter transmission systems contain numerous high-speed rotating components. Engineers need to calculate the heat dissipation efficiency of each lubrication point to achieve precise lubrication and heat dissipation for the bearings and gears throughout the transmission system. Insufficient oil can lead to overheating and component damage, while excessive oil can reduce the operating efficiency of bearings and gears. Therefore, it is necessary to provide a main transmission housing to overcome the aforementioned shortcomings. Summary of the Invention

[0003] The purpose of this invention is to provide a main unit casing with high lubrication efficiency.

[0004] According to one aspect of the present invention, a main unit housing is provided, comprising:

[0005] The main body includes a main oil passage, which is arranged in a ring shape along the periphery of the main body.

[0006] Tail transmission unit, the tail transmission unit is located at one end of the main body, the bottom of the tail transmission unit is provided with an oil tank, and the main oil passage is connected to the oil tank;

[0007] The first mounting part is located inside the main body. The first mounting part includes a main bearing mounting part and a secondary bearing mounting part. The first mounting part is provided with a first branch oil passage connecting the main oil passage and the main bearing mounting part, and a second branch oil passage connecting the main oil passage and the secondary bearing mounting part.

[0008] The main body also includes an upper casing oil inlet passage extending from the upper end face of the self-operated oil passage, a lower casing oil inlet passage extending from the lower end face of the self-operated oil passage, and a tail-drive unit lubrication oil passage extending from the self-operated oil passage to the tail drive unit.

[0009] Preferably, the main body further includes a main casing oil inlet located on the side adjacent to the tail drive unit and a lubricating pump mounting part located above the main casing oil inlet. The lubricating pump mounting part includes a lubricating pump inlet communicating with the main casing oil inlet and a lubricating pump outlet communicating with the main oil passage.

[0010] Preferably, the tail drive unit includes a first housing and a second housing that are detachably connected. The first housing extends in a vertical direction and is provided with a first spray section that communicates with the lubricating oil circuit of the tail drive unit. The second housing is provided with a second spray section that communicates with the lubricating oil circuit of the tail drive unit.

[0011] Preferably, the first spray section protrudes from the first housing in a direction away from the second housing, and the first housing is further provided with an oil tank outlet located below the first spray section.

[0012] Preferably, the second spray section is located on the top of the second housing, and the second spray section includes adjacent first spray points and second spray points, with a gear assembly provided between the first spray section and the second spray section.

[0013] Preferably, the main oil passage is further provided with an oil filter mounting part, a pressure sensor mounting part, and a temperature switch mounting part, and the upper casing oil inlet passage and the tail transmission unit are arranged opposite to each other on both sides of the main body.

[0014] Preferably, it further includes a lower casing, the lower casing including a lower casing oil passage and a nozzle communicating with the lower casing oil passage, the lower casing oil inlet communicating with the lower casing oil passage, and the nozzle extending upward from the lower casing.

[0015] Preferably, the main bearing mounting section is provided with an annular oil groove, and the first branch oil passage is connected to the annular oil groove.

[0016] Preferably, the first housing is provided with a side oil passage extending from the lubrication oil passage of the tail unit, the side oil passage is provided with a nozzle mounting part, the side oil passage extends to the first spray part, and the side oil passage also includes an oil spray hole extending into the interior of the first housing.

[0017] Preferably, the first branch oil passage extends obliquely downwards towards the lower casing and then bends and extends obliquely towards the top of the main body.

[0018] Compared with the prior art, the main unit casing provided by the present invention has the following advantages:

[0019] The system employs a combination of internal oil circuit lubrication and nozzle jet lubrication. By combining nozzle lubrication with under-ring perforation lubrication, precise lubrication and heat dissipation of the bearings and gears in the entire transmission system are achieved. Compared with other solutions, this method enhances lubrication effect, improves efficiency, reduces the amount of oil required, and improves the reliability of the lubrication system. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 This is a perspective view of the main unit casing of the present invention;

[0022] Figure 2 This is a top view of the main unit casing of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the oil inlet of the main casing of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the first branch oil passage of the present invention;

[0025] Figure 5 This is a partial cross-sectional view of the second branch oil passage of the present invention;

[0026] Figure 6 This is a partial cross-sectional view of the lower casing oil inlet passage of the present invention;

[0027] Figure 7 This is a partial cross-sectional view of the first housing of the present invention;

[0028] Figure 8 This is a side view of the main unit housing of the present invention;

[0029] Figure 9 This is a cross-sectional view of the main oil passage of the present invention. Detailed Implementation

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".

[0032] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0033] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0036] See Figure 1 The present invention provides a main casing 100, including a main body 1, a tail transmission unit 2, a first mounting part 3, and a lower casing 4. The main body 1 includes a main oil passage 11 arranged in an annular shape along its periphery, and a main casing oil inlet 12 is provided below the main oil passage 11. The tail transmission unit 2 is located at one end of the main body 1, and the tail transmission unit 2 includes a first housing 21 integrally cast with the main body 1 and a second housing 22 detachably connected to the first housing 21.

[0037] See Figure 2 The bottom of the tail unit 2 is provided with an oil tank 23, which includes an oil tank outlet 231 located on the first housing 21. The oil tank outlet 231 and the main housing inlet 12 are connected by a hose. The main oil passage 11 is also provided with a lubricating oil pump mounting part 13, a pressure sensor mounting part 14, an oil filter mounting part 15, and a temperature switch mounting part 16.

[0038] The first mounting portion 3 is disposed within the main body 1, and includes a main bearing mounting portion 31 and a secondary bearing mounting portion 32. The main bearing mounting portion 31 is disposed at the center of the main body 1, and the secondary bearing mounting portions 32 are evenly distributed along the circumference of the main bearing mounting portion 31. In this embodiment, four secondary bearing mounting portions are provided. The main oil passage 11 is disposed around the first mounting portion 3.

[0039] See Figure 4 and Figure 5 A first branch oil passage 111 is provided between the main oil passage 11 and the main bearing mounting part 31, and a second branch oil passage 112 is provided between the main oil passage 11 and the auxiliary bearing mounting part 32. The main body part 1 also includes an upper casing oil inlet passage 113 extending upward from the main oil passage 11 to the upper end face of the main body part 1, a lower casing oil inlet passage 114 extending downward from the main oil passage 11, and a tail drive unit lubrication oil passage 115 extending from the main oil passage 11 to the tail drive unit 2.

[0040] See Figure 1 and Figure 3The lubricating pump mounting section 13 includes a lubricating pump inlet 131 communicating with the main casing oil inlet 12 and a lubricating pump outlet 132 communicating with the main oil passage 11. The main bearing mounting section 31 includes an annular oil groove 311 on its inner surface, and a first branch oil passage 111 extends into the annular oil groove 311. Oil in the oil tank 23 enters the main casing oil inlet 12 from the oil tank outlet 231 through an external hose, and then enters the main oil passage 11 through the lubricating pump, lubricating the main bearing and the auxiliary bearing respectively through the first branch oil passage 111 and the second branch oil passage 112.

[0041] See Figure 6 and Figure 8 The lower casing 4 includes a lower casing oil passage 41 and a nozzle (not shown) communicating with the lower casing oil passage 41. The nozzle extends vertically upward from the lower casing 4 and sprays oil onto the gears inside the main casing 100. The lower casing oil inlet passage 114 extends vertically to the bottom surface of the main body 1 and communicates with the lower casing oil passage 41. The lower casing oil inlet passage 114 and the tail drive unit 2 are respectively located on both sides of the main body 1.

[0042] See Figure 2 and Figure 7 The first housing 21 is provided with a first spray section 211, and the top of the second housing 22 is provided with a second spray section 221. The first spray section 211 protrudes from the first housing 21 toward the side away from the second housing 22, and a gear assembly (not shown) is provided between the first spray section 211 and the second spray section 221. The second spray section 221 includes a first spray point 2211 and a second spray point 2212 arranged adjacent to each other.

[0043] The first housing 21 has a side oil passage 2111 extending from the lubrication oil passage 115 of the tail unit, and a nozzle mounting part 2112 is provided in the side oil passage 2111. The side oil passage 2111 extends to the first spray part 211, and the side oil passage 2111 also includes an oil spray hole 2113 extending into the interior of the first housing 21.

[0044] See Figure 9 In this embodiment, the lubricating oil pump mounting part 13 and the pressure sensor mounting part 14 are located on one side of the main body 1, and the oil filter mounting part 15 and the temperature switch mounting part 16 are located on the other side of the main body 1. The tail drive unit 2 is symmetrically arranged on both sides. The oil tank outlet, the first spray part, and the second spray part are symmetrically arranged on both sides of the tail drive unit 2.

[0045] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments described above without departing from the spirit and scope of the invention. Therefore, it is intended that this invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A host cartridge, characterized by, The application relates to a main body part, a tail transmission unit, a first mounting part, an upper machine case oil inlet, a lower machine case oil inlet and a tail transmission unit lubricating oil path. The main body part comprises a main oil channel arranged in a ring shape along the periphery of the main body part; the tail transmission unit is arranged at one end of the main body part, and the bottom of the tail transmission unit is provided with an oil tank which is communicated with the main oil channel; the first mounting part is arranged inside the main body part and comprises a main bearing mounting part and an auxiliary bearing mounting part; the first mounting part is provided with a first branch oil channel which is communicated with the main oil channel and the main bearing mounting part and a second branch oil channel which is communicated with the main oil channel and the auxiliary bearing mounting part; the main body part further comprises an upper machine case oil inlet which extends from the main oil channel to the upper end face, a lower machine case oil inlet which extends from the main oil channel to the lower end face and the tail transmission unit lubricating oil path which extends from the main oil channel to the tail transmission unit; the main body part further comprises a main machine case oil inlet which is arranged on one side adjacent to the tail transmission unit and a lubricating oil pump mounting part which is arranged above the main machine case oil inlet; the lubricating oil pump mounting part comprises a lubricating oil pump oil inlet which is communicated with the main machine case oil inlet and a lubricating oil pump oil outlet which is communicated with the main oil channel; the tail transmission unit comprises a first shell and a second shell which are detachably connected; the first shell extends along the vertical direction and is provided with a first spraying part which is communicated with the tail transmission unit lubricating oil path; and the second shell is provided with a second spraying part which is communicated with the tail transmission unit lubricating oil path. The first spraying part protrudes from the first shell to the direction away from the second shell, and the first shell is further provided with an oil tank oil outlet which is located below the first spraying part. The second spraying part is arranged on the top of the second shell and comprises adjacent first spraying points and second spraying points; a gear assembly is arranged between the first spraying part and the second spraying part. The main oil channel is further provided with a machine oil filter mounting part, a pressure sensor mounting part and a temperature switch mounting part; and the upper machine case oil inlet and the tail transmission unit are arranged on the two sides of the main body part. The application further comprises a lower machine case which comprises a lower machine case oil channel and a nozzle which is communicated with the lower machine case oil channel; the lower machine case oil inlet is communicated with the lower machine case oil channel; and the nozzle extends upward from the lower machine case. An annular oil groove is arranged in the main bearing mounting part, and the first branch oil channel is communicated with the annular oil groove.

2. The host magazine of claim 1, wherein, A side oil channel is arranged in the first shell and extends from the tail transmission unit lubricating oil path; a nozzle mounting part is arranged in the side oil channel; the side oil channel extends to the first spraying part; and the side oil channel further comprises an oil injection hole which extends to the inside of the first shell.

3. The host magazine of claim 2, wherein, The first branch oil channel extends obliquely from the main oil channel to the lower machine case, is bent again and then extends obliquely to the top of the main body part.

4. The host magazine of claim 3, wherein, ​ 5. The host magazine of claim 4, wherein, ​ 6. The host magazine of claim 5, wherein, ​ 7. The host enclosure of claim 6, wherein, ​ 8. The host magazine of claim 7, wherein, ​

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