High-precision speed reducer

Abstract

The high-precision speed reducer comprises a planetary speed reducer body and a heat dissipation base, a fixing through groove is formed in the heat dissipation base, fastening bolts are connected to the periphery of the heat dissipation base in a threaded mode, two fixing grooves are formed in the side face of the heat dissipation base, and the two fixing grooves are communicated with the two sides of the fixing through groove respectively. O-shaped cooling pipes are arranged in the fixing through grooves, the two ends of each O-shaped cooling pipe communicate with S-shaped cooling pipes, the ends, away from the O-shaped cooling pipes, of the S-shaped cooling pipes are located in the fixing grooves, the ends, away from the O-shaped cooling pipes, of the S-shaped cooling pipes communicate with communicating pipes, and the two communicating pipes are located on the two sides of the planetary reducer body correspondingly; and a plurality of U-shaped cooling pipes are communicated between the two communicating pipes. The planetary reducer has the beneficial effects that the air circulation of the shell of the planetary reducer body is not influenced, the heat dissipation efficiency and the heat dissipation quality are improved, the service life is prolonged, the planetary reducer is not limited by the installation space, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary reducers, in particular to a high-precision reducer. Background Art

[0002] Planetary reducer is a widely used industrial product, mostly used in industrial robots, die-cutting machines and other equipment. It can reduce the speed of the motor while increasing the output torque. Planetary gear reducer has the characteristics of light weight, small size, wide transmission ratio range, high efficiency, metastable operation, low noise and strong adaptability.

[0003] Utility model application number CN202323613992.9 discloses a planetary reducer with high heat dissipation efficiency. A cooling assembly cools the outer wall of the planetary reducer, while a heat dissipation assembly dissipates heat from the cooling assembly in real time. The cooling and heat dissipation assemblies work together to dissipate and cool the planetary reducer, significantly improving the heat dissipation efficiency and quality of the planetary reducer.

[0004] The above-mentioned device places the positioning shell on the planetary reducer to bring the cooling component close to the outer wall of the planetary reducer. However, the positioning shell wraps the outer shell of the planetary reducer, and the outside air cannot contact the outer shell of the planetary reducer, so that the air cannot circulate. During operation, the temperature can easily rise sharply, which reduces the heat dissipation efficiency and quality, shortens the service life, limits the installation position, and has low applicability.

[0005] It should be noted that the above content falls within the technical knowledge of the inventor and does not necessarily constitute prior art. Utility Model Content

[0006] The purpose of this utility model is to solve the above problems and design a high-precision speed reducer.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A high-precision reducer comprises a planetary reducer body and a heat sink, wherein the heat sink is provided with a fixed through-groove, the internal space of the fixed through-groove is adapted to the shape of the left end of the planetary reducer body, the heat sink is threadedly connected with fastening bolts around the periphery, one end of the fastening bolts contacts the left end of the planetary reducer body, two fixed grooves are provided on the side of the heat sink, the two fixed grooves are respectively connected to the two sides of the fixed through-groove, an O-shaped cooling pipe is provided in the fixed through-groove, both ends of the O-shaped cooling pipe are connected to S-shaped cooling pipes, one end of the S-shaped cooling pipe away from the O-shaped cooling pipe is located in the fixed groove, and the one end of the S-shaped cooling pipe away from the O-shaped cooling pipe is connected to a connecting pipe, the two connecting pipes are respectively located on both sides of the planetary reducer body, and a plurality of U-shaped cooling pipes are connected between the two connecting pipes.

[0009] Furthermore, a circular guide groove is provided on the side of the heat sink, a guide slide is provided in the circular guide groove, one end of the guide slide is connected to a positioning plate, the positioning plate is slidably connected to the heat sink, two mounting grooves are provided on the positioning plate, cooling fans are installed in the two mounting grooves, a limiting plate is installed below the positioning plate near the side of the heat sink, a locking bolt is threadedly connected on the limiting plate, and the locking bolt passes through the limiting plate and contacts the heat sink.

[0010] Furthermore, two protective baffles are installed in the fixed through groove, the S-shaped cooling pipe is located between the two protective baffles, and the side surface of the planetary reducer body is in contact with one side of the protective baffle.

[0011] Furthermore, the axial direction of the planetary reducer body is coaxial with the center of the O-shaped cooling tube.

[0012] Furthermore, the U-shaped cooling tubes are provided in two layers, each layer of the U-shaped cooling tubes is located on the outer wall of the planetary reducer body, and the upper and lower layers of the U-shaped cooling tubes are staggered with each other.

[0013] Compared with the existing technology, this technical solution has the following beneficial effects:

[0014] The motor and the left end of the planetary reducer body can be cooled through the O-type cooling pipe and the S-type cooling pipe, and the outer wall of the planetary reducer body can be quickly cooled through the connecting pipe and the U-type cooling pipe without affecting the air circulation of the planetary reducer body shell, thereby improving the heat dissipation efficiency and heat dissipation quality and extending the service life;

[0015] The guide slide column can make the positioning plate rotate along the circular guide groove, and the position and angle of the positioning plate can be adjusted without being restricted by the installation space, thus improving the applicability;

[0016] The S-shaped cooling pipe is protected by two protective baffles to avoid extrusion damage to the S-shaped cooling pipe and increase its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a high-precision reducer described in the utility model.

[0018] Figure 2 Schematic cross-sectional view of the heat sink.

[0019] Figure 3 This is a side view of the heat sink.

[0020] Figure 4 This is the rotation state diagram of the positioning plate.

[0021] Figure 5 This is a bottom view of the positioning plate.

[0022] In the figure: 1. Planetary reducer body; 2. Heat sink; 3. Fixing groove; 4. Fastening bolt; 5. Fixing groove; 6. O-type cooling pipe; 7. S-type cooling pipe; 8. Connecting pipe; 9. U-type cooling pipe; 10. Circular guide groove; 11. Guide slide column; 12. Positioning plate; 13. Mounting slot; 14. Cooling fan; 15. Limit plate; 16. Locking bolt; 17. Protective baffle. DETAILED DESCRIPTION

[0023] 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 accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments 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 making creative efforts shall fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] The utility model provides Figure 1-5 The high-precision reducer shown includes a planetary reducer body 1 and a heat sink 2. The heat sink 2 is provided with a fixed through-groove 3. The internal space of the fixed through-groove 3 is adapted to the shape of the left end of the planetary reducer body 1. The heat sink 2 is threaded with fastening bolts 4 around it. One end of the fastening bolts 4 contacts the left end of the planetary reducer body 1. Two fixed grooves 5 are provided on the side of the heat sink 2. The two fixed grooves 5 are respectively connected to the two sides of the fixed through-groove 3. An O-shaped cooling pipe 6 is provided in the fixed through-groove 3. Both ends of the O-shaped cooling pipe 6 are connected with S-shaped cooling pipes 7. The end of the S-shaped cooling pipe 7 away from the O-shaped cooling pipe 6 is located in the fixed groove 5. The end of the S-shaped cooling pipe 7 away from the O-shaped cooling pipe 6 is connected with a connecting pipe 8. The two connecting pipes 8 are respectively located on both sides of the planetary reducer body 1. A plurality of U-shaped cooling pipes 9 are connected between the two connecting pipes 8.

[0026] When in use, insert the left end of the planetary reducer body 1 into the fixed through slot 3 on the heat sink 2, and the left end of the planetary reducer body 1 is close to the O-type cooling pipe 6 and the S-type cooling pipe 7. Tighten the fastening bolt 4, and one end of the fastening bolt 4 contacts the left end of the planetary reducer body 1 to fix the planetary reducer body 1. The left end of the planetary reducer body 1 is connected to the output end of the motor. The motor and the left end of the planetary reducer body 1 can be cooled through the O-type cooling pipe 6 and the S-type cooling pipe 7. The outer wall of the planetary reducer body 1 is quickly cooled through the connecting pipe 8 and the U-shaped cooling pipe 9, and it will not affect the air circulation of the outer casing of the planetary reducer body 1, thereby improving the heat dissipation efficiency and heat dissipation quality and extending the service life.

[0027] Refer to the instruction manual Figure 2 , Instruction Manual Figure 3 , Instruction Manual Figure 4 and instructions attached Figure 5 A circular guide groove 10 is provided on the side of the heat sink 2, and a guide slide 11 is provided in the circular guide groove 10. One end of the guide slide 11 is connected to a positioning plate 12, and the positioning plate 12 is slidably connected to the heat sink 2. Two mounting grooves 13 are provided on the positioning plate 12, and cooling fans 14 are installed in the two mounting grooves 13. A limiting plate 15 is installed on the side of the positioning plate 12 close to the heat sink 2. A locking bolt 16 is threadedly connected to the limiting plate 15, and the locking bolt 16 passes through the limiting plate 15 and contacts the heat sink 2.

[0028] When the planetary reducer body 1 is cooled and dissipated, the cooling fan 14 starts to work, and the U-shaped cooling pipe 9 is exhausted and cooled by the cooling fan 14. At the same time, the air on the outer shell of the planetary reducer body 1 can be circulated, thereby improving the heat dissipation efficiency and heat dissipation quality. When the installation position is limited, the positioning plate 12 can be rotated, and the positioning plate 12 is rotated along the circular guide groove 10 through the guide slide column 11. The position and angle of the positioning plate 12 can be adjusted, and the locking bolt 16 is tightened. The locking bolt 16 contacts the heat sink 2 to fix the positioning plate 12, which will not be limited by the installation space, thereby improving applicability.

[0029] Refer to the instruction manual Figure 2 Two protective baffles 17 are installed in the fixed through groove 3, the S-shaped cooling pipe 7 is located between the two protective baffles 17, and the side surface of the planetary reducer body 1 is in contact with one side of the protective baffle 17.

[0030] The left end of the planetary reducer body 1 is fitted with the protective baffle 17 on one side, and the motor is fitted with the protective baffle 17 on the other side. The two protective baffles 17 protect the S-shaped cooling pipe 7, avoiding extrusion damage to the S-shaped cooling pipe 7 and improving its service life.

[0031] Refer to the instruction manual Figure 2The axial direction of the planetary reducer body 1 is coaxial with the center of the O-shaped cooling tube 6.

[0032] The output end of the motor is connected to the planetary reducer body 1 through the O-type cooling pipe 6.

[0033] 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; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-precision reducer, comprising a planetary reducer body (1) and a heat sink (2), wherein the heat sink (2) is provided with a fixed through slot (3), the inner space of the fixed through slot (3) is adapted to the shape of the left end of the planetary reducer body (1), the heat sink (2) is threadedly connected with a fastening bolt (4) on all sides, one end of the fastening bolt (4) contacts the left end of the planetary reducer body (1), and is characterized in that: Two fixed grooves (5) are provided on the side of the heat sink (2), and the two fixed grooves (5) are respectively connected to the two sides of the fixed through groove (3); an O-shaped cooling pipe (6) is provided in the fixed through groove (3); both ends of the O-shaped cooling pipe (6) are connected to an S-shaped cooling pipe (7); the end of the S-shaped cooling pipe (7) away from the O-shaped cooling pipe (6) is located in the fixed groove (5); the end of the S-shaped cooling pipe (7) away from the O-shaped cooling pipe (6) is connected to a connecting pipe (8); the two connecting pipes (8) are respectively located on both sides of the planetary reducer body (1); and a plurality of U-shaped cooling pipes (9) are connected between the two connecting pipes (8).

2. A high-precision reducer according to claim 1, characterized in that: A circular guide groove (10) is provided on the side of the heat sink (2), a guide slide (11) is provided in the circular guide groove (10), one end of the guide slide (11) is connected to a positioning plate (12), the positioning plate (12) is slidably connected to the heat sink (2), two mounting grooves (13) are provided on the positioning plate (12), a heat sink fan (14) is installed in the two mounting grooves (13), a limiting plate (15) is installed below the positioning plate (12) near the heat sink (2) side, a locking bolt (16) is threadedly connected to the limiting plate (15), and the locking bolt (16) passes through the limiting plate (15) and contacts the heat sink (2).

3. A high-precision reducer according to claim 1, characterized in that: Two protective baffles (17) are installed in the fixed through groove (3), the S-shaped cooling pipe (7) is located between the two protective baffles (17), and the side surface of the planetary reducer body (1) is in contact with one side of the protective baffle (17).

4. A high-precision reducer according to claim 1, characterized in that: The axial direction of the planetary reducer body (1) is coaxial with the center of the O-shaped cooling tube (6).

5. The high-precision reducer according to claim 1, characterized in that: The U-shaped cooling tubes (9) are provided in two layers, upper and lower. Each layer of the U-shaped cooling tubes (9) is located on the outer wall of the planetary reducer body (1). The upper and lower layers of the U-shaped cooling tubes (9) are staggered with each other.

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