Gearbox outer shell with built-in oil way and convenience in heat dissipation

Abstract

The utility model discloses a gearbox outer shell with a built-in oil way and convenience in heat dissipation. The gearbox outer shell comprises a gearbox outer shell assembly and a main shaft rotationally installed in the gearbox outer shell assembly. The gearbox shell assembly comprises a shell, a sealing cover is arranged on the left side of the shell, and the left end of the main shaft is rotationally connected with the sealing cover. A lubricating oil inlet is formed in the upper surface of the shell, and an ahead running oil inlet hole, a lubricating oil inlet hole and a reversing oil inlet hole are formed in the lubricating oil inlet. An ahead running oil inlet channel and a reverse running oil inlet channel are formed in the left side of the shell. The ahead running oil inlet channel is communicated with the ahead running oil inlet hole, and the reversing oil inlet channel is communicated with the reversing oil inlet hole. The ahead running oil inlet channel and the reverse running oil inlet channel are communicated with the interior of the sealing cover. The left end of the main shaft is provided with three oil ways in the axial direction, namely an ahead running oil way, a lubricating oil way and a reversing oil way. The device provided by the utility model has the advantages that an oil way is directly manufactured in the gearbox shell, so that an external oil way system is omitted; and the oil path passes through the surface of the gearbox shell, so that the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of gearboxes, and in particular relates to a gearbox outer shell with a built-in oil circuit and convenient heat dissipation. Background Art

[0002] The transmission can adjust the gear ratio according to demand, thereby changing the torque and speed of the drive wheels. This adjustment allows the engine to operate in an efficient and economical state, improving engine performance and fuel economy.

[0003] Without changing the direction of engine rotation, the gearbox can achieve reverse, meeting the needs in different scenarios.

[0004] The neutral function of the transmission interrupts power transmission, making it easier to start and stop the engine. During the gear shift process, the transmission also plays a role in smooth transition, reducing gear shift shock and improving comfort and smoothness.

[0005] The gearbox needs to be lubricated during use. Common external lubricating oil systems have the following disadvantages: 1. They require additional pipes, filters and other components, which increases the complexity and maintenance difficulty of the entire system and also increases potential failure points;

[0006] 2. The external lubrication oil system may be affected by the external environment and requires complex heat dissipation components. Utility Model Content

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a gearbox housing with a built-in oil circuit and convenient heat dissipation, comprising a gearbox housing assembly and a main shaft rotatably installed therein.

[0008] The gearbox housing assembly includes a shell, a cover is provided on the left side of the shell, and the left end of the main shaft is rotatably connected to the cover.

[0009] A lubricating oil inlet is provided on the upper surface of the shell, and the lubricating oil inlet is provided with a forward oil inlet hole, a lubricating oil inlet hole and a reverse oil inlet hole.

[0010] The left side of the housing is internally provided with a forward oil inlet passage and a reverse oil inlet passage.

[0011] The forward oil inlet passage is communicated with the forward oil inlet hole, and the reverse oil inlet passage is communicated with the reverse oil inlet hole.

[0012] The forward oil inlet passage and the reverse oil inlet passage both lead to the interior of the cover.

[0013] The left end of the main shaft is provided with three oil circuits along the axial direction, namely a forward oil circuit, a lubricating oil circuit and a reverse oil circuit.

[0014] Furthermore, the oil passage leads from the side of the main shaft to the piston and other transmission components in the gearbox housing assembly.

[0015] Furthermore, a plurality of oil holes are provided in the lubricating oil circuit, leading to the bearing portion of the main shaft.

[0016] The utility model provides a gearbox outer shell with a built-in oil circuit and convenient heat dissipation, which has the following advantages: 1. The oil circuit is directly made in the gearbox shell, eliminating the need for an external oil circuit system, making the equipment easier to maintain; 2. The oil circuit passes through the surface of the gearbox shell, which improves the heat dissipation efficiency and does not require additional heat dissipation components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the appearance structure of a gearbox housing with a built-in oil circuit and convenient heat dissipation in the present invention;

[0019] Figure 2 This is a top view of a gearbox housing with a built-in oil circuit and heat dissipation function according to the present invention;

[0020] Figure 3 This is the intention of the oil inlet path of the gearbox housing with a built-in oil circuit and heat dissipation in the utility model;

[0021] Figure 4 This is a schematic diagram of the lubrication oil inlet path of a gearbox outer shell with a built-in oil circuit and heat dissipation in the utility model;

[0022] Figure 5 This is a schematic diagram of the reverse oil inlet path of a gearbox housing with a built-in oil circuit and heat dissipation in the present invention;

[0023] Figure 6 This is a cross-sectional schematic diagram of the main shaft portion of a gearbox outer shell with a built-in oil circuit and convenient heat dissipation according to the present invention.

[0024] Explanation of the reference numerals in the figure: 1. Gearbox housing assembly, 101. Housing, 102. Lubricating oil inlet, 1021. Forward oil inlet hole, 1022. Lubricating oil inlet hole, 1023. Reverse oil inlet hole, 103. Cover, 1041. Forward oil inlet channel, 1042. Reverse oil inlet channel, 2. Main shaft, 201. Forward oil circuit, 202. Lubricating oil circuit, 2021. Oil hole, 203. Reverse oil circuit. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1-6 As shown, an embodiment of the present invention provides a gearbox housing with a built-in oil circuit and convenient heat dissipation, including a gearbox housing assembly 1 and a main shaft 2 rotatably mounted therein.

[0028] The gearbox housing assembly 1 includes a housing 101 , a cover 103 is provided on the left side of the housing 101 , and the left end of the main shaft 2 is rotatably connected to the cover 103 .

[0029] A lubricating oil inlet 102 is provided on the upper surface of the shell 101, and a forward oil inlet hole 1021, a lubricating oil inlet hole 1022 and a reverse oil inlet hole 1023 are provided on the lubricating oil inlet 102. When the gearbox is in different working conditions, the lubricating oil enters the shell 101 from the forward oil inlet hole 1021, the lubricating oil inlet hole 1022 and the reverse oil inlet hole 1023 respectively.

[0030] A forward oil inlet channel 1041 and a reverse oil inlet channel 1042 are provided inside the left side of the shell 101. The forward oil inlet channel 1041 and the reverse oil inlet channel 1042 are directly made inside the shell 101. The oil circuit flows through the shell 101. Taking advantage of the full contact between the shell 101 and the air, the shell 101 becomes a radiator, thereby improving the heat dissipation efficiency.

[0031] The forward oil inlet channel 1041 is connected to the forward oil inlet hole 1021 , and the reverse oil inlet channel 1042 is connected to the reverse oil inlet hole 1023 .

[0032] The forward oil inlet channel 1041 and the reverse oil inlet channel 1042 both lead to the interior of the cover 103 , and the lubricating oil enters the interior of the cover 103 through the forward oil inlet channel 1041 and the reverse oil inlet channel 1042 .

[0033] Three oil circuits are provided along the axial direction at the left end of the main shaft 2, namely a forward oil circuit 201, a lubricating oil circuit 202 and a reverse oil circuit 203.

[0034] Preferably, the on-board oil circuit 201 leads from the side of the main shaft 2 to the transmission components such as the piston in the gearbox housing assembly 1, which plays a lubricating role in the on-board working condition.

[0035] Preferably, a plurality of oil holes 2021 leading to the bearing portion of the main shaft 2 are provided in the lubricating oil passage 202 , and lubricating oil continuously flows out of the oil holes 2021 , so that the key parts can always be lubricated.

[0036] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A gearbox housing with a built-in oil circuit and convenient heat dissipation, characterized by: It comprises a gearbox housing assembly (1) and a main shaft (2) rotatably mounted therein; The gearbox housing assembly (1) comprises a housing (101), a cover (103) is provided on the left side of the housing (101), and the left end of the main shaft (2) is rotatably connected to the cover (103); The upper surface of the housing (101) is provided with a lubricating oil inlet (102), and the lubricating oil inlet (102) is provided with a forward oil inlet hole (1021), a lubricating oil inlet hole (1022) and a reverse oil inlet hole (1023); The left side of the housing (101) is internally provided with a forward oil inlet passage (1041) and a reverse oil inlet passage (1042); The forward oil inlet channel (1041) is in communication with the forward oil inlet hole (1021), and the reverse oil inlet channel (1042) is in communication with the reverse oil inlet hole (1023); The forward oil inlet channel (1041) and the reverse oil inlet channel (1042) both lead to the interior of the cover (103); The left end of the main shaft (2) is provided with three oil circuits in the axial direction, namely a forward oil circuit (201), a lubricating oil circuit (202) and a reverse oil circuit (203).

2. The gearbox housing with built-in oil circuit and heat dissipation according to claim 1, characterized in that: The oil passage (201) leads from the side of the main shaft (2) to the transmission components such as the piston in the transmission housing assembly (1).

3. The gearbox housing with built-in oil circuit and heat dissipation according to claim 1, characterized in that: The lubricating oil circuit (202) is provided with a plurality of oil holes (2021) leading to the bearing portion of the main shaft (2).

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