Cooling device of planet carrier

Abstract

The utility model discloses a cooling device of a planet carrier, which comprises a rotatable mounting disc, a cooling device and a cooling device, wherein the mounting disc is provided with a mounting part for mounting the planet carrier; the first cooling assembly is arranged below the planet carrier, and the first cooling assembly comprises an air blowing pipe used for blowing air into the first shaft hole or the second shaft hole; and the second cooling assembly is arranged in the side direction of the planet carrier, and the second cooling assembly comprises a plurality of fans. The planet carrier can be cooled inside and outside at the same time, the cooling speed inside and outside is more uniform, the cooling speed is higher, residual stress can be greatly reduced, and the service life of the planet carrier is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling, in particular to a cooling device for a planet carrier. Background Art

[0002] As a key component of a planetary gear transmission system, the planet carrier needs to have sufficient strength, high manufacturing precision, and good rigidity to support the planetary gears and transmit torque. In the application of a wind power gearbox, the planet carrier usually undergoes a heat treatment process to improve its performance. The cooling process after heat treatment is crucial for ensuring the material properties.

[0003] Currently, there are two main cooling methods: natural air cooling and air-cooling platform blowing cooling. Among them, natural air cooling means that after heat treatment, the planet carrier naturally cools to room temperature without any forced cooling measures. This method is simple but has a slow cooling speed. Air-cooling platform blowing cooling means that the heat-treated planet carrier is placed on a platform equipped with a fan for cooling, and the fan blows directly at the planet carrier to accelerate the cooling process. Although this method is faster than natural cooling, there are still some problems: the fan is usually only installed on one side of the planet carrier, resulting in low cooling efficiency in the other side and the internal area. Uneven cooling may cause inconsistent hardness distribution and large residual stress, thereby affecting the service life of the planet carrier. Summary of the Invention

[0004] Aiming at the above deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a cooling device for a planet carrier to solve the problems such as the cooling speed of the planet carrier affecting its service life in the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problem is a cooling device for a planet carrier. The planet carrier includes a frame body, a first shaft body and a second shaft body respectively located at both ends of the frame body. The first shaft body has a first shaft hole communicating with the inside of the frame body, and the second shaft body has a second shaft hole communicating with the inside of the frame body. The cooling device includes:

[0006] A rotatable mounting disc, and the mounting disc is provided with a mounting portion for mounting the planet carrier;

[0007] A first cooling component, which is arranged below the planet carrier, and the first cooling component includes a blowing air pipe for blowing air into the first shaft hole or the second shaft hole;

[0008] A second cooling component, which is arranged on the side of the planet carrier, and the second cooling component includes a plurality of fans.

[0009] Further, the second cooling component includes a first fan, the first fan is at the same height as the frame body, and the blowing direction of the first fan is parallel to the working surface.

[0010] Further, the second cooling assembly includes a second blower, the height of the second blower is higher than that of the frame body, and the blowing direction of the second blower is gradually inclined downward from the direction of the second cooling assembly towards the planet carrier.

[0011] Further, the second cooling assembly includes a third blower and a fourth blower, the heights of the third blower and the fourth blower are both lower than that of the frame body, and the blowing directions of the third blower and the fourth blower are gradually inclined upward from the direction of the second cooling assembly towards the planet carrier.

[0012] Further, the length of the first shaft body is greater than that of the second shaft body, the planet carrier is located above the mounting disc, and the first shaft body is connected to the mounting portion.

[0013] Further, a fixing frame is further included, and the mounting disc is rotatably arranged on the fixing frame;

[0014] A follower gear is fixedly arranged on the mounting disc, a driving motor is arranged on the fixing frame, a driving gear is arranged on the output shaft of the driving motor, and the driving gear meshes with the follower gear.

[0015] Further, the first cooling assembly further includes a fifth blower connected to the air blowing pipe.

[0016] Further, the air blowing pipe includes a horizontal section and a vertical section that communicate with each other, the horizontal section is connected to the fifth blower; the vertical section is located below the planet carrier and blows air upward.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] The planet carrier is arranged on the mounting disc, and is blown by multiple blowers in the second cooling assembly. At the same time, the planet carrier rotates with the mounting disc, continuously changing the wind-receiving position of the planet carrier, so that each outer side surface of the planet carrier can receive wind, and the cooling speed of each outer side surface is more uniform. At the same time, a first cooling assembly is provided to ventilate into the first shaft hole or the second shaft hole, so that the cooling air enters the frame body from the first shaft hole and is discharged from the second shaft hole, or enters the frame body from the second shaft hole and is discharged from the first shaft hole, so that the cooling air can cool the planet carrier from the inside, so that the planet carrier can be cooled both inside and outside, the cooling speed inside and outside is more uniform, the cooling speed is faster, the residual stress can be greatly reduced, and the service life of the planet carrier can be prolonged. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the cooling device and the planet carrier in the embodiment;

[0020] Figure 2 Schematic diagram of the structure of the first cooling component and the planet carrier in the embodiment;

[0021] Figure 3 Schematic diagram of the structure of the second cooling component in the embodiment;

[0022] Figure 4 Schematic diagram of the structure of the mounting plate and the fixing frame in the embodiment;

[0023] Figure 5 Schematic diagram of one perspective of the planet carrier in the embodiment;

[0024] Figure 6 Schematic diagram of another perspective of the planet carrier in the embodiment;

[0025] In the figure:

[0026] 100. Planet carrier; 110. First shaft body; 111. First shaft hole; 120. Second shaft body; 121. Second shaft hole; 130. Frame body;

[0027] 200. First cooling component; 210. Fifth fan; 220. Air blowing pipe; 221. Horizontal section; 222. Vertical section;

[0028] 300. Second cooling component; 310. First fan; 320. Second fan; 330. Third fan; 340. Fourth fan; 350. Mounting frame;

[0029] 400. Fixing frame; 410. Driving motor; 411. Driving gear;

[0030] 500. Mounting plate; 510. Follow-up gear;

[0031] 600. Equipment control box; 610. Temperature sensor. Detailed implementation manners

[0032] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0033] Please refer to Figures 1 - 6 , the present invention discloses a cooling device for a planet carrier, the planet carrier 100 includes a frame body 130 and a first shaft body 110 and a second shaft body 120 respectively located at both ends of the frame body 130, the first shaft body 110 has a first shaft hole 111 communicating with the inside of the frame body 130, the second shaft body 120 has a second shaft hole 121 communicating with the inside of the frame body 130, and the cooling device includes:

[0034] A rotatable mounting disc 500, and a mounting portion for mounting the planet carrier 100 is provided on the mounting disc 500;

[0035] A first cooling assembly 200, which is disposed below the planet carrier 100, and the first cooling assembly 200 includes a blowing air duct 220 for blowing air into the first shaft hole 111 or the second shaft hole 121;

[0036] A second cooling assembly 300, which is disposed laterally of the planet carrier 100, and the second cooling assembly 300 includes a plurality of fans.

[0037] Specifically, in the present application, the planet carrier 100 is disposed on the mounting disc 500, and the plurality of fans in the second cooling assembly 300 blow air. At the same time, the planet carrier 100 rotates with the mounting disc 500, continuously changing the air-receiving position of the planet carrier 100, so that each outer side surface of the planet carrier 100 can receive air, and the cooling speed of each outer side surface is more uniform. At the same time, the first cooling assembly 200 is provided to ventilate the first shaft hole 111 or the second shaft hole 121, so that the cooling air enters the frame body 130 from the first shaft hole 111 and is discharged from the second shaft hole 121, or enters the frame body 130 from the second shaft hole 121 and is discharged from the first shaft hole 111, so that the cooling air can cool the planet carrier 100 from the inside, so that the planet carrier 100 can be cooled both inside and outside, the cooling speed inside and outside is more uniform, the cooling speed is faster, the residual stress can be greatly reduced, and the service life of the planet carrier 100 can be extended.

[0038] Further, the length of the first shaft body 110 is greater than the length of the second shaft body 120, the planet carrier 100 is located above the mounting disc 500, and the first shaft body 110 is connected to the mounting portion.

[0039] Specifically, since the length of the first shaft body 110 is greater than the length of the second shaft body 120, the first shaft body 110 is mounted on the mounting portion, so that there is a large space between the mounting disc 500 and the frame body 130, so that the air from the fan can blow to the lower surface of the frame body 130.

[0040] Further, the second cooling assembly 300 includes a first fan 310, the first fan 310 is at the same height as the frame body 130, and the blowing direction of the first fan 310 is parallel to the working surface.

[0041] Specifically, the first fan 310 is 1500 mm from the ground, at the same height as the frame body 130, and the blowing direction of the first fan 310 is parallel to the ground, so that the air from the first fan 310 can enter the inside of the frame body 130 through the side opening of the frame body 130, so as to facilitate rapid cooling.

[0042] Furthermore, the second cooling assembly 300 includes a second fan 320 , the height of the second fan 320 is higher than the frame 130 , and the blowing direction of the second fan 320 gradually tilts downward from the second cooling assembly 300 toward the planetary frame 100 .

[0043] Specifically, the second fan 320 is installed at a height of 2000 mm from the ground, which is higher than the height of the frame 130. When the second fan 320 blows air downward, it can blow air to the second shaft 120, the connection between the second shaft 120 and the frame 130, and the upper surface of the frame 130.

[0044] Furthermore, the second cooling assembly 300 includes a third fan 330 and a fourth fan 340, the heights of the third fan 330 and the fourth fan 340 are both lower than the frame 130, and the blowing directions of the third fan 330 and the fourth fan 340 gradually tilt upward from the second cooling assembly 300 toward the planetary frame 100.

[0045] Specifically, the third fan 330 and the fourth fan 340 are both at a height of 900 mm from the ground, which is lower than the height of the frame 130, wherein the third fan 330 blows air obliquely upward at 30° toward the first shaft 110; the fourth fan 340 blows air obliquely upward at 45° toward the connection between the second shaft 120 and the frame 130 and the lower surface of the frame 130.

[0046] It should be noted that the first fan 310, the second fan 320, the third fan 330 and the fourth fan 340 are all installed on the same mounting frame 350, and the four fans are on the same side of the planetary frame 100 to prevent the wind directions of multiple fans from offsetting each other. At the same time, since the mounting plate 500 drives the planetary frame 100 to rotate, all sides of the planetary frame 100 can be exposed to wind and cooled quickly and evenly.

[0047] Furthermore, a fixing frame 400 is included, and the mounting plate 500 is rotatably disposed on the fixing frame 400;

[0048] A follower gear 510 is fixedly disposed on the mounting plate 500 , a driving motor 410 is disposed on the fixing frame 400 , a driving gear 411 is disposed on the output shaft of the driving motor 410 , and the driving gear 411 is meshed with the follower gear 510 .

[0049] Specifically, the output shaft of the driving motor 410 rotates, driving the driving gear 411 to rotate, and then driving the follower gear 510 to rotate, and finally driving the mounting plate 500 and the planet carrier 100 on the mounting plate 500 to rotate, so that different sides of the planet carrier 100 are evenly exposed to wind.

[0050] Furthermore, the first cooling component 200 further includes a fifth fan 210 connected to the air blowing pipe 220.

[0051] Furthermore, the air blowing pipe 220 includes a horizontal section 221 and a vertical section 222 that communicate with each other. The horizontal section 221 is connected to the fifth fan 210; the vertical section 222 is located below the planet carrier 100 and blows air upward.

[0052] Specifically, since heat is transferred from bottom to top, by arranging the vertical section 222 below the planet carrier 100 and blowing air upward, the air blown by the fifth fan 210 can enter the frame body 130 upward through the first shaft hole 111, and be discharged through the second shaft hole 121 to take away the heat inside the planet carrier 100, so as to achieve rapid cooling inside the planet carrier 100.

[0053] Furthermore, a temperature sensor 610 and an equipment control box 600 are also provided. The temperature sensor 610 is used to collect the temperature of the planet carrier 100. The equipment control box 600 is used to receive the signal of the temperature sensor 610, and control the opening and closing of the first cooling component 200 and the second cooling component 300 and the magnitude of the output power according to the signal of the temperature sensor 610, so as to achieve automatic cooling of the planet carrier 100, automatic shutdown after cooling, and automatic adjustment of the output power of the fan during the cooling process.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0056] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0057] In addition, the technical solutions between various embodiments of the present utility model may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A cooling device for a planetary carrier, the planetary carrier comprising a carrier body and a first shaft body and a second shaft body respectively located at two ends of the carrier body, the first shaft body having a first shaft hole communicating with the carrier body, the second shaft body having a second shaft hole communicating with the carrier body, characterized in that: The cooling device comprises: A rotatable mounting plate, wherein the mounting plate is provided with a mounting portion for mounting the planet carrier; a first cooling assembly, which is arranged below the planet carrier, and comprises a blowing pipe for blowing air into the first shaft hole or the second shaft hole; The second cooling assembly is arranged on the side of the planet carrier, and the second cooling assembly includes a plurality of fans.

2. A planet carrier cooling device according to claim 1, characterized in that: The second cooling assembly includes a first fan, the first fan and the frame are at the same height, and the blowing direction of the first fan is parallel to the working surface.

3. The planet carrier cooling device according to claim 1, characterized in that: The second cooling assembly includes a second fan, the height of the second fan is higher than the frame, and the blowing direction of the second fan gradually tilts downward from the second cooling assembly toward the planetary frame.

4. The planet carrier cooling device according to claim 1, characterized in that: The second cooling assembly includes a third fan and a fourth fan, the heights of the third fan and the fourth fan are both lower than the frame, and the blowing directions of the third fan and the fourth fan gradually tilt upward from the second cooling assembly toward the planetary frame.

5. The planet carrier cooling device according to claim 1, characterized in that: The length of the first shaft body is greater than that of the second shaft body, the planet carrier is located above the mounting plate, and the first shaft body is connected to the mounting portion.

6. The planet carrier cooling device according to claim 1, characterized in that: Also included is a fixing frame, on which the mounting plate is rotatably disposed; A follower gear is fixedly arranged on the mounting plate, a driving motor is arranged on the fixing frame, a driving gear is arranged on the output shaft of the driving motor, and the driving gear is meshed with the follower gear.

7. The planet carrier cooling device according to claim 1, characterized in that: The first cooling component also includes a fifth fan connected to the blowing pipe.

8. The planet carrier cooling device according to claim 7, characterized in that: The blowing pipe includes a horizontal section and a vertical section which are connected to each other, wherein the horizontal section is connected to the fifth blower; and the vertical section is located below the planetary frame and blows air upward.

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