Housing for planetary gear reducer

Abstract

The invention relates to the field of machine shells for planetary gear reducers, in particular to a machine shell for a planetary gear reducer, which comprises a planetary gear reducer body, the planetary gear reducer body comprises a shell, a plurality of heat dissipation fins are arranged outside the shell at equal intervals in an annular array, and a plurality of caulking grooves are formed in one ends of the heat dissipation fins at equal intervals. Heat conduction pipe assemblies are inserted into the caulking grooves, and wavy protruding blocks are installed at the other ends of the heat dissipation fins and located between every two adjacent heat conduction pipe assemblies. According to the invention, through the heat dissipation fins, the surface area of the casing body in contact with air is increased, the heat dissipation efficiency of the casing body is improved, meanwhile, the heat conduction pipe assembly is arranged and utilizes the working medium phase change principle to instantaneously and axially conduct heat in a high-temperature area at the root of the fins to the far-end fin end, local heat accumulation is avoided, and through the cooperation with the arrangement of a plurality of wave-shaped convex blocks, the heat dissipation efficiency of the casing body is improved. The structural rigidity of the fins is increased, and deformation resistance is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of planetary gear reducer housings, and in particular to a planetary gear reducer housing. Background Art

[0002] A planetary gear reducer, also known as a planetary gearbox or epicyclic gear train reducer, is a precision mechanical transmission device that converts high-speed, low-torque rotation of an input shaft into low-speed, high-torque rotation of an output shaft. Its core characteristic is that the arrangement of its gears mimics the orbital structure of planets in the solar system, hence the name "planetary gear." The housing of a planetary gear reducer is its core structural component, fulfilling multiple critical functions, including support, containment, protection, heat dissipation, and sealing. It is more than just a housing; it is the foundation for the stable and reliable operation of the entire reducer system.

[0003] Currently, some planetary gear reducer casings on the market mostly rely solely on natural convection on the casing surface or solid metal fins. The solid metal fins have limited thermal conductivity, which can easily lead to the inability to quickly dissipate heat from local high-temperature areas of the casing, resulting in low heat dissipation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a housing for a planetary gear reducer.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A planetary gear reducer housing includes a planetary gear reducer body, the planetary gear reducer body including a shell, a plurality of heat dissipation fins are arranged in an equidistant annular array on the outside of the shell, a plurality of equidistant embedding grooves are formed on one end of the heat dissipation fins, heat pipe assemblies are inserted into the embedding grooves, and a wavy protrusion is installed on the other end of the heat dissipation fins and located between two adjacent heat pipe assemblies;

[0007] The heat dissipation fin is magnetically plugged into a pressing assembly for pressing against the heat pipe assembly on one side of the embedding groove, and a slot is provided in the heat dissipation fin at the pressing assembly. A limiting slide is slidably provided above one end of the slot in the heat dissipation fin, and the limiting slide is plugged into the pressing assembly.

[0008] A plurality of positioning blocks are installed in the slot at equal distances, and the limiting slide plate is connected to the positioning blocks via fasteners.

[0009] In addition, a preferred structure is that the pressing assembly includes a connecting plate, one end of the connecting plate is provided with a pressing block for pressing the heat pipe assembly at a corresponding embedding groove, and the pressing surface of the pressing block is provided with a flexible cushion layer.

[0010] In addition, a preferred structure is that the limiting slide includes a fixed plate portion, a limiting plate portion is installed on one side of the bottom of the fixed plate portion, and a T-shaped guide block is installed on one side of the limiting plate portion at the corresponding pressing block.

[0011] In addition, a preferred structure is that a limiting sliding groove is provided at one end of the connecting plate at the corresponding T-shaped guide block.

[0012] In addition, a preferred structure is that a plurality of flexible protrusions are provided in an equidistant annular array on the inner wall of the embedding groove, and the flexible protrusions are in a semi-spherical shape.

[0013] In addition, a preferred structure is that a plurality of magnetic protrusions are symmetrically installed at equal distances on both sides of the embedding groove in the card slot, and a magnetic groove with a polarity opposite to that of the magnetic protrusion is opened in the connecting plate at the magnetic protrusion.

[0014] In addition, a preferred structure is that a positioning hole is opened in the connecting plate at the positioning block.

[0015] The beneficial effects of the present invention are:

[0016] In the present invention, the surface area of ​​the casing body in contact with the air is increased through the heat dissipation fins, thereby improving the heat dissipation efficiency of the casing body. At the same time, the setting of the heat pipe assembly utilizes the principle of phase change of the working fluid to instantly conduct the heat in the high-temperature zone at the root of the fin to the distal wing end axially, avoiding local heat accumulation. In addition, the setting of multiple wavy protrusions increases the structural rigidity of the fin, which helps to resist deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the housing for the planetary gear reducer proposed in the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure enlarged in the middle;

[0019] Figure 3 A schematic diagram of the structure of a partially disassembled cross section of the heat dissipation fin. Figure 1 ;

[0020] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 5 for Figure 3 The enlarged structural diagram at C in the middle;

[0022] Figure 6 A schematic diagram of the structure of a partially disassembled cross section of the heat dissipation fin. Figure 2 ;

[0023] Figure 7 for Figure 6Schematic diagram of the structure enlarged at point D in the middle.

[0024] In the figure: 1. Planetary gear reducer body; 11. Casing body; 2. Heat dissipation fin; 21. Wave-shaped protrusion; 211. Embedded groove; 212. Flexible protrusion; 22. Heat pipe assembly; 23. Pressing assembly; 231. Connecting plate; 232. Pressing block; 233. Limiting slide; 24. Magnetic protrusion; 25. Positioning block; 26. Limiting slide; 261. T-shaped guide block; 3. Fasteners. DETAILED DESCRIPTION

[0025] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-7 The planetary gear reducer housing includes a planetary gear reducer body 1, which includes a shell 11. A plurality of heat dissipation fins 2 are arranged in an equidistant annular array on the outside of the shell 11. A plurality of embedding grooves 2111 are equidistantly opened at one end of the heat dissipation fin 2. A heat conduction pipe assembly 22 is inserted into the embedding groove 2111. A wavy protrusion 21 is installed at the other end of the heat dissipation fin 2 and located between two adjacent heat conduction pipe assemblies 22.

[0027] At the same time, a pressing component 23 for pressing against the heat pipe assembly 22 is magnetically inserted on the side of the heat dissipation fin 2 close to the embedding groove 211, and a slot is provided in the heat dissipation fin 2 at the pressing component 23. A limiting slide 26 is slidably provided above one end of the slot in the heat dissipation fin 2, and the limiting slide 26 is inserted into the pressing component 23.

[0028] In addition, a plurality of positioning blocks 25 are installed at equal distances in the slot, and the limiting slide plate 26 is connected to the positioning blocks 25 via a fastener 3 .

[0029] Furthermore, the pressing assembly 23 includes a connecting plate 231 , one end of which is provided with a pressing block 232 located at the corresponding embedding groove 2111 for pressing the heat pipe assembly 22 , and a pressing surface of the pressing block 232 is provided with a flexible cushion layer.

[0030] Furthermore, the limiting slide 26 includes a fixed plate portion, with the limiting plate portion mounted on one side of the bottom of the fixed plate portion. A T-shaped guide block 261 is mounted on one side of the limiting plate portion, corresponding to the pressure block 232. A mounting hole is provided on the limiting slide 26, located at the positioning block 25. A handle portion is mounted in the middle of the limiting plate portion, away from the T-shaped guide block 261. A pick-up slot is provided on the heat dissipation fin, located on one side of the slot and corresponding to the handle portion. The cross-sectional area of ​​the pick-up slot is larger than that of the handle portion, making it easier to grasp the handle portion.

[0031] At the same time, a limiting sliding groove 233 is formed at one end of the connecting plate 231 at the corresponding T-shaped guide block 261 .

[0032] At the same time, a plurality of flexible protrusions 212 are provided in an equidistant annular array on the inner wall of the embedding groove 2111 , and the flexible protrusions 212 are semi-spherical in shape.

[0033] Furthermore, a plurality of magnetic protrusions 24 are symmetrically installed at equal distances on both sides of the embedding groove 2111 in the card slot, and a magnetic groove with opposite polarity to the magnetic protrusion 24 is opened in the connecting plate 231 at the magnetic protrusion 24 .

[0034] Furthermore, a positioning hole is defined in the connection plate 231 at the positioning block 25 .

[0035] The flexible protrusion 212 and the flexible cushion layer are made of materials that are resistant to high temperature, aging, and have good elastic recovery. The magnetic protrusion 24 is made of a permanent magnetic material with stable magnetic properties at high temperatures.

[0036] In the present invention, by providing a plurality of heat dissipation fins 2 on the outside of the housing body 11, the surface area of ​​the housing body 1 in contact with the air is increased, thereby improving the heat dissipation efficiency of the housing body 1. At the same time, a heat pipe assembly is embedded in the outer wall of the heat dissipation fin. The setting of the heat pipe assembly utilizes the principle of phase change of the working fluid to instantly conduct the heat from the high-temperature zone at the root of the fin to the distal fin end axially, thereby avoiding local heat accumulation. In addition, the semi-spherical flexible protrusion 212 in the heat dissipation fin groove elastically deforms when the heat pipe is inserted, thereby generating continuous contact pressure. This ensures close, low-thermal-resistance physical contact between the heat pipe and the inner wall of the groove, compensates for manufacturing tolerances and surface unevenness, and reduces contact thermal resistance. However, the pressure block presses the heat pipe to the other side of the groove under the action of magnetic force. The flexible padding on its surface can also adapt to the slight unevenness of the heat pipe surface, providing uniform pressure, further reducing the contact thermal resistance between the heat pipe and the heat dissipation fin.

[0037] The heat pipe assembly is detachable, which is convenient for subsequent maintenance. During maintenance, it can be disassembled individually without removing the casing or heat sink fins.

[0038] Among them, by loosening the fastener thread and removing it, then holding the handle and sliding the limiting slide 26 away from the side of the slot until the handle is located in the taking slot, and taking out the pressing assembly 23, the heat pipe assembly can be installed or disassembled for maintenance.

[0039] After the heat pipe assembly is plugged into the embedding groove 2111, when assembling the heat pipe assembly, it is necessary to ensure that the heat source end of the heat pipe assembly is close to the root of the heat dissipation fin 2, and the condensation end is located at the wing end of the heat dissipation fin, and the pressing assembly 23 is plugged in. After the pressing assembly 23 is plugged in, its connecting plate 231 is magnetically connected to the magnetic protrusion 24, and one end of the pressing block 232 is pressed against the heat pipe assembly 22. Then, hold the handle and move the limiting slide 26 into the slot until its mounting hole is aligned with its positioning hole, and then use fasteners to limit the positioning block and the limiting slide to complete the installation of the heat pipe assembly.

[0040] In addition, the arrangement of the plurality of wave-shaped protrusions 21 increases the structural rigidity of the fin, helping to resist deformation.

[0041] In the present invention, the surface area of ​​the casing body 1 in contact with the air is increased through the heat dissipation fins 2, thereby improving the heat dissipation efficiency of the casing body 1. At the same time, the setting of the heat pipe assembly utilizes the principle of phase change of the working fluid to instantly conduct the heat from the high-temperature zone at the root of the fin axially to the distal wing end, thereby avoiding local heat accumulation. In addition, the setting of multiple wavy protrusions 21 increases the structural rigidity of the fin, which helps to resist deformation.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A planetary gear reducer housing, comprising a planetary gear reducer body (1), characterized in that: The planetary gear reducer body (1) comprises a housing (11), a plurality of heat dissipation fins (2) are arranged in an equidistant annular array on the outside of the housing (11), a plurality of embedding grooves (211) are provided at an equidistant position on one end of the heat dissipation fin (2), a heat conduction pipe assembly (22) is inserted into the embedding groove (211), and a wavy protrusion (21) is installed at the other end of the heat dissipation fin (2) and located between two adjacent heat conduction pipe assemblies (22); The heat dissipation fin (2) is magnetically plugged into a pressing assembly (23) for pressing against the heat conduction pipe assembly (22) on one side of the embedding groove (211), and a slot is provided in the heat dissipation fin (2) at the pressing assembly (23). A limiting slide (26) is slidably provided above one end of the slot in the heat dissipation fin (2), and the limiting slide (26) is plugged into the pressing assembly (23). A plurality of positioning blocks (25) are installed at equal distances in the slot, and the limiting slide plate (26) is connected to the positioning blocks (25) via a fastener (3).

2. The planetary gear reducer housing according to claim 1, wherein: The pressing assembly (23) comprises a connecting plate (231), one end of the connecting plate (231) is provided with a pressing block (232) for pressing against the heat pipe assembly (22) at a corresponding embedding groove (211), and a pressing surface of the pressing block (232) is provided with a flexible cushion layer.

3. The planetary gear reducer housing according to claim 1, wherein: The limiting slide plate (26) comprises a fixed plate portion, a limiting plate portion is installed on one side of the bottom of the fixed plate portion, and a T-shaped guide block (261) is installed on one side of the limiting plate portion at a position corresponding to the pressing block (232).

4. The planetary gear reducer housing according to claim 2, wherein: One end of the connecting plate (231) is provided with a limiting sliding groove (233) at the corresponding T-shaped guide block (261).

5. The planetary gear reducer housing according to claim 2, wherein: The inner wall of the embedding groove (211) is provided with a plurality of flexible protrusions (212) in an equidistant annular array, and the flexible protrusions (212) are in a semi-spherical shape.

6. The planetary gear reducer housing according to claim 1, wherein: A plurality of magnetic protrusions (24) are symmetrically installed at equal distances on both sides of the embedding groove (211) in the card slot, and a magnetic groove with a polarity opposite to that of the magnetic protrusion (24) is opened in the connecting plate (231) at the magnetic protrusion (24).

7. The planetary gear reducer housing according to claim 6, wherein: A positioning hole is provided in the connecting plate (231) at the positioning block (25).

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