Integrated lubrication heat dissipation electric pre-plastic planetary reducer

Abstract

The application provides an integrated lubrication heat dissipation electric pre-plastic planetary reducer, which comprises a mounting flange, a mounting block connected to one side of the mounting flange, a connecting block installed on one side of the mounting block, a fixing plate installed on one side of the connecting block, a motor arranged on one side of the fixing plate, and a planet carrier arranged in the connecting block; and a heat dissipation assembly arranged on the connecting block, wherein the heat dissipation assembly comprises cooling fins, an arc-shaped groove, a guide pipe, a circulating pipe and a spray pipe. Through the arrangement of the planet carrier and the heat dissipation assembly, the periodic extrusion of the extrusion rod on the guide pipe is driven by the inevitable rotary motion of the planet carrier in the operation of the reducer, so that the lubricating oil in the arc-shaped groove is pumped into the circulating pipe, and the oil pump driven by additional power is not needed, and active lubrication with zero additional energy consumption is realized.

Description

Technical Field

[0001] This invention relates to the field of planetary gear reducer technology, specifically an integrated lubrication and heat dissipation electro-pre-plasticized planetary gear reducer. Background Technology

[0002] Planetary gear reducers, as a precision power transmission device, are widely used in key fields such as industrial robots, high-end equipment, and aerospace due to their advantages such as compact structure, large transmission ratio, and strong load-bearing capacity.

[0003] Traditional planetary gear reducers suffer from insufficient lubrication and heat dissipation under long-term high-speed and heavy-load conditions. Currently, most common planetary gear reducers use splash lubrication or oil bath lubrication. This passive lubrication system relies on the rotation of gears to cause lubricating oil to splash, and its oil path is random and uncontrollable, leading to insufficient lubrication. At the same time, during the operation of the reducer, the meshing friction of the gears will continuously generate a lot of heat, causing the lubricating oil temperature to rise. The mainstream heat dissipation method relies solely on the natural heat dissipation of the housing, which is inefficient and causes heat accumulation, resulting in a decrease in the lubrication effect of the lubricating oil and accelerated aging and oxidation of the lubricating oil. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an integrated lubrication and heat dissipation electro-plastic planetary reducer. By setting up the planetary carrier and heat dissipation components, the inevitable rotational motion of the planetary carrier during the operation of the reducer can drive the extrusion rod to periodically extrude the guide tube, thereby pumping the lubricating oil in the arc groove into the circulation pipe. No additional electric power is required for the oil pump, thus achieving active lubrication with zero additional energy consumption.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer, comprising: A mounting flange is provided, with a mounting block connected to one side of the mounting flange, a connecting block installed on one side of the mounting block, a fixing plate installed on one side of the connecting block, a motor provided on one side of the fixing plate, and a planetary carrier provided inside the connecting block. A heat dissipation assembly is disposed on the connecting block. The heat dissipation assembly includes: a heat sink, an arc-shaped groove, a conduit, a circulation pipe, and a nozzle. The connecting block has a transmission cavity inside. Multiple heat sinks are connected to the outside of the connecting block. An arc-shaped groove is formed in the inner wall of the transmission cavity. A conduit is provided inside the transmission cavity. One end of the conduit extends into the inner wall of the connecting block and is connected to the circulation pipe. One end of the circulation pipe is connected to the nozzle.

[0006] Furthermore, the heat sink is made of aluminum alloy and is embedded in the connecting block and connected to the circulation pipe, which is spirally arranged.

[0007] Furthermore, one end of the conduit extends into the arc-shaped groove, an oil injection pipe is connected to the top of the connecting block, an oil drain pipe is connected to the bottom of the connecting block, and the oil drain pipe is located in the arc-shaped groove. An arc-shaped baffle is connected to the inner wall of the connecting block, and the notch of the baffle faces downward.

[0008] Furthermore, a first oil seal is provided between the mounting block and the connecting block, and a second oil seal is provided between the connecting block and the fixing plate.

[0009] Furthermore, a sun gear is driven and connected to one side of the motor, and three rotating shafts are rotatably connected to one side of the planetary carrier. Planetary gears are provided on the outer side of the rotating shafts, and a fastening plate is installed on one side of each planetary gear.

[0010] Furthermore, an internal gear ring is installed on the inner wall of the connecting block, and the planetary gears mesh with the sun gear and the internal gear ring.

[0011] Furthermore, three extrusion rods are connected to the outer side of the planetary carrier, and the extrusion rods are in contact with the outer surface of the conduit.

[0012] Furthermore, an output shaft is connected to one side of the planetary carrier, and an output bearing is provided inside the mounting flange, with the output shaft passing through the output bearing.

[0013] Furthermore, a placement cavity is provided on one side of the fixing plate, an input bearing is provided inside the placement cavity, a fixing block is installed on one side of the fixing plate, and the motor is installed on the fixing block.

[0014] This invention provides an integrated lubrication and heat dissipation electro-pre-plasticized planetary reducer, which has the following beneficial effects:

[0015] The advantage of this invention is that, by setting up the planetary carrier and heat dissipation components, the inevitable rotational motion of the planetary carrier during the operation of the reducer can be used to drive the extrusion rod to periodically extrude the guide tube, thereby pumping the lubricating oil in the arc groove into the circulation pipe. No additional electric power is required for the oil pump, thus achieving active lubrication with zero additional energy consumption. Secondly, the heat dissipation components, with their heat sinks and spiral-designed circulation pipes, extend the flow path and heat exchange time of the lubricating oil. The heat from the lubricating oil is dissipated into the air by multiple heat sinks, thereby reducing the oil temperature and the operating temperature of the reducer. The lubricating oil after heat exchange is then sprayed onto the sun gear and planetary gears through nozzles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is an exploded view of the overall structure of the present invention.

[0018] Figure 3 This is a cross-sectional view of the overall structure of the present invention.

[0019] Figure 4 This is a half-sectional view of the overall structure of the present invention.

[0020] Figure 5 This is a side sectional view of the planetary carrier structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the connecting block structure of the present invention.

[0022] Figure 7 This is a schematic diagram of the connecting block structure of the present invention from another angle.

[0023] Figure 8 This is a schematic diagram of the circulation pipe structure of the present invention.

[0024] Figure 9 This is a side cross-sectional view of the circulation pipe structure of the present invention.

[0025] Figure 1-9 In the middle section: 1. Mounting flange; 101. Mounting block; 102. First oil seal; 103. Output bearing; 2. Connecting block; 201. Heat sink; 202. Arc groove; 203. Conduit; 204. Baffle; 205. Circulation pipe; 206. Nozzle; 207. Internal gear ring; 208. Second oil seal; 3. Fixing plate; 301. Input bearing; 302. Fixing block; 4. Motor; 401. Sun gear; 5. Planetary carrier; 501. Output shaft; 502. Planetary gear; 503. Fastening plate; 504. Extrusion rod. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] This application provides an integrated lubrication and heat dissipation electro-plasticized planetary reducer, which solves the problems of insufficient lubrication and low heat dissipation efficiency of traditional planetary reducers.

[0029] By utilizing the planetary carrier 5 and the heat dissipation assembly, the inevitable rotational motion of the planetary carrier 5 during the operation of the reducer can drive the extrusion rod 504 to periodically extrude the conduit 203, thereby pumping the lubricating oil in the arc groove 202 into the circulation pipe 205. This achieves active lubrication with zero additional energy consumption without the need for an oil pump driven by additional electricity. Secondly, the heat dissipation fins 201 and the spiral-designed circulation pipe 205 in the heat dissipation assembly can extend the flow path and heat exchange time of the lubricating oil. The heat in the lubricating oil can be dissipated into the air by multiple heat dissipation fins 201, thereby reducing the oil temperature of the lubricating oil and the operating temperature of the reducer. Then, the heat-exchanged lubricating oil is directionally sprayed onto the sun gear 401 and planetary gear 502 through the nozzle 206.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1 , Figure 2 and Figure 3 As shown, an integrated lubrication and heat dissipation electro-plastic planetary reducer includes: a mounting flange 1, a mounting block 101 connected to one side of the mounting flange 1, a connecting block 2 mounted to one side of the mounting block 101, a fixing plate 3 mounted to one side of the connecting block 2, a motor 4 mounted to one side of the fixing plate 3, and a planetary carrier 5 inside the connecting block 2; a heat dissipation assembly, which is mounted on the connecting block 2 and includes: heat sink 201, an arc groove 202, a conduit 203, a circulation pipe 205, and a nozzle 206. The connecting block 2 has a transmission cavity inside, multiple heat sinks 201 are connected to the outside of the connecting block 2, an arc groove 202 is opened in the inner wall of the transmission cavity, a conduit 203 is provided inside the transmission cavity, one end of the conduit 203 extends into the inner wall of the connecting block 2 and is connected to the circulation pipe 205, and one end of the circulation pipe 205 is connected to the nozzle 206.

[0032] Mounting flange 1 serves as the output end and main load-bearing component of the reducer, used to fix the entire reducer to external equipment. During the use of the planetary reducer, the heat generated inside cannot be dissipated in time, leading to increased oil temperature, grease deterioration, and thermal expansion of parts, which in turn causes a decrease in efficiency, increased noise, or even seizure. At this time, by setting up a heat dissipation component, the lubricating oil is brought into the circulation pipe 205, and heat exchange is carried out between the heat sink 201 and the circulation pipe 205, thereby dissipating the heat energy in the lubricating oil to the outside, thereby reducing the heat of the lubricating oil and keeping the oil temperature within a suitable and safe range, avoiding excessive oil temperature that would lead to a decrease in lubrication effect. Combination Figure 3 Furthermore, the heat sink 201 is made of aluminum alloy and is embedded in the connecting block 2 and connected to the circulation pipe 205, which is spirally arranged.

[0033] Aluminum alloy has good thermal conductivity. The arrangement of multiple heat sinks 201 increases the contact area between the gearbox housing and the air. Through heat exchange with the circulation pipe 205, the heat generated by the lubricating oil and transmission components is efficiently dissipated to the outside. The spiral design of the pipeline can extend the flow path of the lubricating oil and increase the heat exchange time. The circulation pipe 205 is made of copper.

[0034] Reference Figure 3 As shown, a first oil seal 102 is provided between the mounting block 101 and the connecting block 2, and a second oil seal 208 is provided between the connecting block 2 and the fixing plate 3.

[0035] The first oil seal 102 is located between the mating surfaces of the mounting block and the connecting block 2 to prevent the lubricating oil in the transmission cavity from leaking from the joint between the mounting block 101 and the connecting block 2, thus ensuring the sealing of the lubrication system. The second oil seal 208 is located between the mating surfaces of the connecting block 2 and the fixing plate 3, and has a similar function to the first oil seal 102, preventing the lubricating oil from leaking from the joint.

[0036] Reference Figure 2 and Figure 3 As shown, a sun gear 401 is driven and connected to one side of the motor 4, and three rotating shafts are rotatably connected to one side of the planetary carrier 5. Planetary gears 502 are provided on the outer side of the rotating shafts. A fastening plate 503 is installed on one side of the planetary gears 502. An internal gear ring 207 is installed on the inner wall of the connecting block 2. The planetary gears 502 are all meshed with the sun gear 401 and the internal gear ring 207. An output shaft 501 is connected to one side of the planetary carrier 5. An output bearing 103 is provided inside the mounting flange 1. The output shaft 501 passes through the output bearing 103. A placement cavity is opened on one side of the fixing plate 3. An input bearing 301 is provided inside the placement cavity. A fixing block 302 is installed on one side of the fixing plate 3, and the motor 4 is installed on the fixing block 302.

[0037] During operation, the reducer drives the sun gear 401 to rotate via the motor 4, which in turn transmits the power of the motor 4 to the three planetary gears 502. At this time, the planetary gears 502 revolve and rotate under the combined meshing action of the internal gear ring 207 and the sun gear 401, causing the planet carrier 5 to rotate. This reduces the high-speed rotational power of the motor and increases its torque, which is then output to the external load equipment through the output shaft 501.

[0038] The input bearing 301 ensures the concentricity and smooth rotation of the input shaft of the motor 4 and withstands the radial force from the motor 4. The output bearing 103 can withstand the radial force and part of the axial force of the output shaft 501, ensuring that the output shaft 501 rotates smoothly and accurately.

[0039] Reference Figure 5 and Figure 6 As shown, one end of the conduit 203 extends into the arc groove 202 and is fixed in the arc groove 202 to prevent the conduit 203 from detaching from the arc groove 202 due to friction between the subsequent extrusion rod 504 and the conduit 203. The top of the connecting block 2 is connected to an oil injection pipe, and the bottom of the connecting block 2 is connected to an oil drain pipe, which is located in the arc groove 202. The inner wall of the connecting block 2 is connected to a baffle 204 with an arc structure, and the notch of the baffle 204 faces downward. Three extrusion rods 504 are connected to the outside of the planetary carrier 5, and the extrusion rods 504 are in contact with the outer surface of the conduit 203.

[0040] During the operation of the reducer, the planetary carrier 5 also drives the three extrusion rods 504 to rotate. At this time, the extrusion rods 504 rotate and periodically extrude and release the conduit 203, causing the conduit 203 to generate a pumping effect, drawing the lubricating oil in the arc groove 202 into the circulation pipe 205, so that the lubricating oil can exchange heat with the heat sink 201, thereby achieving the effect of cooling the lubricating fluid. After the heat exchange, the lubricating oil is sprayed back onto the sun gear 401 and planetary gear 502 through the nozzle 206 for active directional lubrication, thereby achieving forced circulation of lubricating oil by utilizing the operation of the reducer itself. Among them, the conduit 203 is made of fluororubber material. Fluororubber has excellent resistance to lubricating oil, mineral oil and other substances, and is resistant to high temperature. It can withstand the corrosion of lubricating oil and the temperature of lubricating oil. At the same time, fluororubber has good elasticity and resilience. It can still recover well after long-term extrusion deformation at high temperature. Fluororubber has high mechanical strength, tear resistance, wear resistance and exhibits excellent toughness. It can withstand multiple extrusions by the extrusion rod 504.

[0041] Then, a flow groove is provided near the bottom of the internal gear ring 207, so that the lubricating oil on the other side of the internal gear ring 207 can flow through the flow groove to the arc groove 202. Under the action of gravity, the lubricating oil after heat exchange will flow back into the arc groove 202, which is convenient for the guide tube 203 to extract and use. The oil injection and drainage pipes allow for the discharge of lubricating oil from the transmission chamber and the addition of new lubricating oil.

[0042] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0043] The above provides a detailed description of an integrated lubrication and heat dissipation electro-plastic planetary reducer provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An integrated lubrication and heat dissipation electro-plasticizing planetary reducer, characterized in that, include: Mounting flange (1), mounting block (101) is connected to one side of mounting flange (1), connecting block (2) is installed on one side of mounting block (101), fixing plate (3) is installed on one side of connecting block (2), motor (4) is provided on one side of fixing plate (3), and planetary carrier (5) is provided inside connecting block (2); A heat dissipation assembly is provided on the connecting block (2). The heat dissipation assembly includes: a heat sink (201), an arc groove (202), a conduit (203), a circulation pipe (205), and a nozzle (206). The connecting block (2) has a transmission cavity inside. Multiple heat sinks (201) are connected to the outside of the connecting block (2). An arc groove (202) is opened on the inner wall of the transmission cavity. A conduit (203) is provided inside the transmission cavity. One end of the conduit (203) extends into the inner wall of the connecting block (2) and is connected to the circulation pipe (205). One end of the circulation pipe (205) is connected to the nozzle (206). Three extrusion rods (504) are connected to the outside of the planetary carrier (5). The extrusion rods (504) are in contact with the outer surface of the conduit (203).

2. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 1, characterized in that, The heat sink (201) is made of aluminum alloy and is embedded in the connecting block (2) and connected to the circulation pipe (205), which is spirally arranged.

3. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 1, characterized in that, One end of the conduit (203) extends into the arc groove (202). The top of the connecting block (2) is connected to an oil injection pipe, and the bottom of the connecting block (2) is connected to an oil drain pipe. The oil drain pipe is located in the arc groove (202). The inner wall of the connecting block (2) is connected to a baffle (204) with an arc structure, and the notch of the baffle (204) faces downward.

4. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 1, characterized in that, A first oil seal (102) is provided between the mounting block (101) and the connecting block (2), and a second oil seal (208) is provided between the connecting block (2) and the fixing plate (3).

5. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 1, characterized in that, The motor (4) is driven by a sun gear (401) on one side, and the planet carrier (5) is rotatably connected to three rotating shafts on one side. Planet gears (502) are provided on the outer side of the rotating shafts, and fastening plates (503) are installed on one side of the planet gears (502).

6. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 5, characterized in that, An internal gear ring (207) is installed on the inner wall of the connecting block (2), and the planetary gears (502) are all meshed with the sun gear (401) and the internal gear ring (207).

7. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 1, characterized in that, The planetary carrier (5) is connected to an output shaft (501) on one side, and an output bearing (103) is provided inside the mounting flange (1). The output shaft (501) passes through the output bearing (103).

8. The integrated lubrication and heat dissipation electro-pre-plasticizing planetary reducer according to claim 1, characterized in that, The fixing plate (3) has a placement cavity on one side, and an input bearing (301) is provided inside the placement cavity. A fixing block (302) is installed on one side of the fixing plate (3), and the motor (4) is installed on the fixing block (302).

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