Testing device of fan heat dissipation assembly

Abstract

The invention provides a testing device for a fan heat dissipation assembly, and relates to the technical field of fan testing, the testing device comprises a bottom support, a transmission frame is fixedly arranged on the middle rear side of the top of the bottom support, a supporting shaft seat is fixedly arranged on the top of the transmission frame, and a driven shaft is rotatably arranged in the supporting shaft seat; the front end of the driven shaft is of a hexagonal structure, and a connecting shaft sleeve is slidably arranged outside the hexagonal structure. A driving motor is fixedly arranged at the top of the bottom support, and the driving motor is in transmission connection with the driven shaft through a belt; a vertical frame is fixedly arranged in the middle of the top of the bottom support. A middle frame is fixedly arranged in the middle of the vertical frame. And through the design of the external driving motor and the slidable connecting shaft sleeve, different types of fans can be quickly connected for testing without assembling a special motor and complex wiring for the fans, so that the testing efficiency is remarkably improved, and the damage to the tested fan is avoided.

Description

Technical Field

[0001] This invention relates to the field of wind turbine testing technology, and in particular to a testing device for a wind turbine heat dissipation assembly. Background Technology

[0002] As a core heat dissipation component, the performance of the fan cooling assembly directly determines the operational stability, service life, and safety and reliability of downstream equipment. Its heat is mainly generated by mechanical transmission and air friction. After the heat is generated, its heat dissipation effect needs to be tested to ensure that it will not affect the transmission effect due to heat generation at the operating temperature.

[0003] The current testing equipment requires testing after the motor is assembled. Installing the motor and wiring is laborious and not conducive to rapid testing. There is a lack of corresponding positioning structures that can enable rapid testing. Summary of the Invention

[0004] In view of the above, the present invention addresses the shortcomings of the prior art by providing a testing device for a fan cooling assembly.

[0005] This invention provides a testing device for a fan cooling assembly, specifically comprising: a bottom support; a transmission frame fixedly mounted on the top rear side of the bottom support; a support shaft seat fixedly mounted on the top of the transmission frame; a driven shaft rotatably mounted in the support shaft seat; the front end of the driven shaft has a hexagonal structure, and a connecting sleeve is slidably mounted on the outside of the hexagonal structure; a drive motor fixedly mounted on the top of the bottom support, and a belt drive connection is provided between the drive motor and the driven shaft; a vertical frame fixedly mounted on the top middle of the bottom support, and a middle frame fixedly mounted on the middle of the vertical frame; two sets of hinge seats fixedly mounted on both sides of the top of the bottom support; two sets of electric cylinders fixedly mounted on the top front side of the bottom support, each electric cylinder having a rotating roller frame fixedly mounted on its extension end, and a support roller rotatably mounted above each rotating roller frame; a positioning vertical frame fixedly mounted on the top left side of the bottom support, the top of the positioning vertical frame being connected to a connecting seat via a gooseneck tube, an octagonal cylinder integrally mounted above the connecting seat, and a magnetic frame fixedly mounted at the bottom of the connecting seat.

[0006] Optionally, a trigger wheel A is fixedly provided on the outside of the driven shaft. The trigger wheel A has an integrally formed protruding structure. A counting sensor A is mounted at the top center of the transmission frame. The counting sensor A can detect the protruding structure of the trigger wheel A.

[0007] Optionally, an annular heater is fixedly installed at the front end of the intermediate frame. The annular heater has six sets of through holes, and a temperature sensor A is fixedly installed in each of the through holes.

[0008] Optionally, the front side of the hinged seat is hinged with two sets of long connecting rods, and the front ends of the two sets of long connecting rods on the same side are hinged with movable hinge seats, and the two sets of long connecting rods on the same side are parallel; the front ends of the two sets of movable hinge seats are fixedly provided with connecting plates; the middle outer side of the lower long connecting rod is hinged with short connecting rods, and the outer side of the two sets of short connecting rods is hinged with U-shaped frames; the top middle of the bottom support is rotatably provided with a lead screw, and the top middle rear side of the bottom support is fixedly provided with a servo motor, the servo motor is driven and connected to the lead screw, and the U-shaped frame is threadedly connected to the lead screw.

[0009] Optionally, a pressure sensor is fixedly installed in the middle of the connecting plate; two sets of spring rods are slidably installed on both sides of the connecting plate, each spring rod has a spring sleeved at its rear end, a support plate is fixedly installed at the rear end of the spring rod, and two sets of pads are fixedly installed at both ends of the rear side of the support plate.

[0010] Optionally, two sets of guide rods are fixedly installed on both sides of the bottom of the roller frame; four sets of L-shaped seats are fixedly installed on the top of the bottom support, and the guide rods are slidably connected to the L-shaped seats.

[0011] Optionally, a U-shaped bracket is slidably arranged in the positioning frame, with the opening of the U-shaped bracket facing to the right, and a magnetic plate is fixedly arranged at the right end of the U-shaped bracket.

[0012] Optionally, an impeller is rotatably mounted inside the octagonal cylinder, and a trigger wheel B is fixedly mounted through the rear end of the impeller's shaft passing through the octagonal cylinder. A protruding structure is integrally mounted on the outside of the trigger wheel B. A counting sensor B is fixedly mounted on the rear side of the octagonal cylinder, and the counting sensor B can detect the protruding structure of the trigger wheel B. A wedge-shaped blocking structure is integrally mounted on one side of the inside of the octagonal cylinder.

[0013] Optionally, two sets of temperature sensors B are fixedly installed on both sides of the octagonal cylinder, and a handle is integrally installed on the outside of the octagonal cylinder.

[0014] The beneficial effects are as follows: Enables rapid and non-destructive testing: With an external drive motor and a sliding coupling sleeve design, there is no need to assemble a dedicated motor and complex wiring for the fan. Different models of fans can be quickly connected for testing, which significantly improves testing efficiency and avoids damage to the fan under test.

[0015] Automated and precise positioning: The device integrates an electric cylinder and a linkage mechanism driven by a servo motor, which can automatically adjust the height and forward / backward position of the fan. With the assistance of pressure sensors and magnetic positioning, it can achieve stable clamping and high-precision positioning of the fan, ensuring the consistency and accuracy of test conditions.

[0016] One-stop comprehensive testing: This device integrates the testing functions of key performance parameters such as rotation speed, body temperature, outlet air temperature, and outlet air volume, and is equipped with a ring heater to simulate high-temperature working conditions, realizing a comprehensive and systematic performance evaluation of the fan heat dissipation assembly. Attached Figure Description

[0017] Figure 1 A schematic diagram of the working state structure of an embodiment of the present invention is shown; Figure 2 An embodiment of the present invention is shown. Figure 1 Another structural diagram from a different angle; Figure 3 An embodiment of the present invention is shown. Figure 1 A side-view top view of the structure; Figure 4 A three-dimensional structural schematic diagram of an embodiment of the present invention is shown; Figure 5 An embodiment of the present invention is shown. Figure 4 Another structural diagram from a different angle; Figure 6 A schematic diagram of the assembly structure of the hinge seat in an embodiment of the present invention is shown; Figure 7 A schematic diagram of the transmission structure of the driven shaft in an embodiment of the present invention is shown; Figure 8 A three-dimensional structural schematic diagram of the connector in an embodiment of the present invention is shown; Figure 9 A three-dimensional cross-sectional view of the connecting seat in an embodiment of the present invention is shown.

[0018] List of reference numerals in the attached diagram: 1. Bottom bracket; 101. Transmission frame; 102. Support shaft seat; 103. Driven shaft; 104. Trigger wheel A; 105. Coupling sleeve; 106. Counting sensor A; 107. Lead screw; 108. Servo motor; 109. L-shaped seat; 2. Drive motor; 3. Vertical frame; 301. Intermediate frame; 302. Annular heater; 303. Temperature sensor A; 4. Hinge seat; 401. Long connecting rod; 402. Moving hinge seat; 403. Connecting plate; 404. Short 405. Connecting rod; 406. U-shaped frame; 407. Pressure sensor; 408. Spring rod; 409. Support plate; 4000. Pad plate; 5. Electric cylinder; 501. Roller frame; 502. Support roller; 503. Guide rod; 6. Positioning vertical frame; 601. U-shaped pull frame; 602. Magnetic plate; 7. Connecting seat; 701. Octagonal cylinder; 702. Impeller; 703. Trigger wheel B; 704. Counting sensor B; 705. Temperature sensor B; 706. Handle; 8. Magnetic frame. Detailed Implementation

[0019] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0020] Example 1: Please refer to the accompanying drawings in the instruction manual. Figures 1 to 9 As shown: This invention proposes a testing device for a fan cooling assembly, comprising: a bottom support 1, a transmission frame 101 fixedly mounted on the rear top side of the bottom support 1, a support shaft seat 102 fixedly mounted on the top of the transmission frame 101, and a driven shaft 103 rotatably mounted in the support shaft seat 102; the front end of the driven shaft 103 is a hexagonal structure, and a connecting sleeve 105 is slidably mounted on the outside of the hexagonal structure; a drive motor 2 fixedly mounted on the top of the bottom support 1, and a belt drive connection is provided between the drive motor 2 and the driven shaft 103; and a vertical shaft is fixedly mounted in the middle of the top of the bottom support 1. The upright frame 3 has a middle frame 301 fixedly installed in the middle; the bottom support 1 has two sets of hinge seats 4 fixedly installed on the top two sides; the bottom support 1 has two sets of electric cylinders 5 fixedly installed on the top front side, and the extension end of each electric cylinder 5 is fixedly equipped with a roller frame 501, and a support roller 502 is rotatably installed above each roller frame 501; the bottom left side of the bottom support 1 has a positioning vertical frame 6 fixedly installed, and the top of the positioning vertical frame 6 is connected to a connecting seat 7 through a gooseneck tube. An octagonal cylinder 701 is integrally installed above the connecting seat 7, and a magnetic frame 8 is fixedly installed at the bottom of the connecting seat 7.

[0021] Among them, a trigger wheel A104 is fixedly installed on the outside of the driven shaft 103. The trigger wheel A104 has a protruding structure integrally installed on its outside. A counting sensor A106 is installed at the top center of the transmission frame 101. The counting sensor A106 can detect the protruding structure of the trigger wheel A104.

[0022] Among them, an annular heater 302 is fixedly installed at the front end of the intermediate frame 301. The annular heater 302 has six sets of through holes, and a temperature sensor A303 is fixedly installed in each of the through holes.

[0023] The hinged base 4 has two sets of long connecting rods 401 hinged to its front side. The front ends of the two sets of long connecting rods 401 on the same side are hinged to movable hinge seats 402, and the two sets of long connecting rods 401 on the same side are parallel. The front ends of the two sets of movable hinge seats 402 are fixedly provided with connecting plates 403. The middle outer side of the lower long connecting rods 401 is hinged to short connecting rods 404, and the outer side of the two sets of short connecting rods 404 is hinged to U-shaped frames 405. The top middle of the bottom support 1 is rotatably provided with a lead screw 107, and the top middle rear side of the bottom support 1 is fixedly provided with a servo motor 108. The servo motor 108 is connected to the lead screw 107 for transmission, and the U-shaped frame 405 is threadedly connected to the lead screw 107.

[0024] A pressure sensor 406 is fixedly installed in the middle of the connecting plate 403; two sets of spring rods 407 are slidably installed on both sides of the connecting plate 403, and springs are sleeved on the rear end of each spring rod 407. A support plate 408 is fixedly installed at the rear end of the spring rod 407, and two sets of pads 409 are fixedly installed at both ends of the rear side of the support plate 408.

[0025] Two sets of guide rods 503 are fixedly installed on both sides of the bottom of the roller frame 501; four sets of L-shaped seats 109 are fixedly installed on the top of the bottom support 1, and the guide rods 503 are slidably connected to the L-shaped seats 109.

[0026] Among them, a U-shaped bracket 601 is slidably arranged in the positioning vertical bracket 6, the opening of the U-shaped bracket 601 faces to the right, and a magnetic plate 602 is fixedly arranged at the right end of the U-shaped bracket 601.

[0027] An impeller 702 is rotatably mounted inside the octagonal cylinder 701. A trigger wheel B703 is fixedly mounted through the rear end of the impeller 702 shaft, and a protruding structure is integrally mounted on the outside of the trigger wheel B703. A counting sensor B704 is fixedly mounted on the rear side of the octagonal cylinder 701, and the counting sensor B704 can detect the protruding structure of the trigger wheel B703. A wedge-shaped blocking structure is integrally mounted on one side of the inside of the octagonal cylinder 701.

[0028] Two sets of temperature sensors B705 are fixedly installed on both sides of the octagonal cylinder 701, and a handle 706 is integrally installed on the outside of the octagonal cylinder 701.

[0029] I. Fan Position Adjustment and Connection Initial placement: Place the fan to be tested above the support roller 502. The fan does not yet have its own motor installed and will be driven by drive motor 2. Height adjustment: In order to align the fan shaft with the driven shaft 103, start the electric cylinder 5. Through the extension action of the electric cylinder 5, drive the roller frame 501 and the support roller 502 to move up and down, thereby adjusting the position of the fan until the fan shaft and the driven shaft 103 are precisely aligned. Shaft connection: After the fan shaft is aligned with the driven shaft 103, the coupling sleeve 105 is moved and fitted onto the outside of the fan shaft by manual operation. Then, the coupling sleeve 105 is fixed with set screws to complete the connection between the fan and the driven shaft 103. The size of the coupling sleeve 105 can be customized according to actual needs to ensure that it can fit and connect with the fan shaft. II. Auxiliary measures for fan fixing and position calibration The movable magnetic plate 602 is used to fix the outlet position of the fan by utilizing its adsorption properties; under the constraint of the magnetic plate 602, the fan cannot rotate arbitrarily and can always maintain a fixed position. Figure 1The state shown provides stable conditions for further adjustments to the fan shaft position, facilitating precise calibration; III. Fan Positioning and Heating Preparation Positioning: Start the servo motor 108, which drives the lead screw 107 to rotate. The lead screw 107 drives the U-shaped frame 405 to move forward. During the movement of the U-shaped frame 405, it works with the short connecting rod 404 to push the long connecting rod 401 forward and upward. The long connecting rod 401 then drives the connecting plate 403 to move, so that the pad 409 contacts the fan and pushes the fan to move backward. Stop moving and fix: When the rear side of the fan contacts the annular heater 302, the fan stops moving backward; at this time, the connecting plate 403 continues to move forward. When the pressure sensor 406 contacts the support plate 408, the pressure sensor 406 senses the pressure signal and controls the connecting plate 403 to stop moving through the preset program. At this time, the fan is stably fixed.

[0030] IV. Fan Start-up and Speed ​​Testing Start-up: Start drive motor 2. Drive motor 2 drives driven shaft 103 to rotate via belt drive. Driven shaft 103 drives fan shaft to rotate via coupling sleeve 105. Fan starts to enter working state. Speed ​​detection: During the rotation of the driven shaft 103, the trigger wheel A104 will rotate synchronously. The counting sensor A106 will be triggered by the trigger wheel A104 and count. The working speed of the fan can be calculated from the counting data. V. Temperature Detection Fan body temperature detection: The temperature of the fan itself can be directly detected by the temperature sensor A303, so as to monitor the temperature status of the fan body in real time during operation. Air outlet temperature detection: The B705 temperature sensor can be used to detect the air outlet temperature at the fan outlet to understand the temperature of the air outlet from the fan. VI. High Temperature Simulation Test When it is necessary to simulate the temperature environment of a fan in operation, an annular heater 302 can be used to heat the fan and heat the fan casing to the temperature under normal operating conditions. During the heating process, the fan continues to rotate to test whether the internal shaft or fan blades will deform due to the increase in temperature, which could lead to the fan seizing up. VII. Airflow Measurement and Operating Status Inspection Installation of testing components: The staff uses the handle 706 to manually install the connector 7 at the fan outlet and fixes the connector 7 by the adsorption of the magnetic frame 8; Air volume calculation: When the fan is discharging air, the airflow passes through the octagonal cylinder 701, which drives the impeller 702 and trigger wheel B703 inside the cylinder to rotate. The counting sensor B704 is triggered by the trigger wheel B703 and counts. The air volume of the fan can be calculated based on the counting result. Operating status inspection: By measuring the fan's outlet air velocity and outlet air temperature, and combining this with previously measured data such as fan operating speed and body temperature, a comprehensive inspection is conducted to determine whether the fan can maintain normal operating status.

[0031] The specific usage and function of this embodiment: In this invention, when used, according to... Figure 1 In this state, the test fan is placed above the support roller 502. Since the fan is not equipped with a motor, it is driven by the drive motor 2. The position of the fan needs to be adjusted so that the fan shaft is aligned with the driven shaft 103. The position of the fan can be adjusted by moving the roller frame 501 and the support roller 502 up and down through the extension electric cylinder 5. The fan shaft is aligned with the driven shaft 103. The connecting sleeve 105 is manually moved and fitted onto the outside of the fan shaft and fixed by the set screw. The movable magnetic plate 602 can attract and fix the outlet position of the fan. Due to the restriction of the magnetic plate 602, the fan cannot rotate freely and remains stationary. Figure 1 This state allows for easy adjustment of its pivot position; The servo motor 108 is started to drive the lead screw 107 to rotate. The lead screw 107 drives the U-shaped frame 405 to move forward, which in turn works with the short connecting rod 404 to push the long connecting rod 401 forward and upward. The long connecting rod 401 drives the connecting plate 403 to move, so that the pad 409 contacts the fan, and the fan moves backward. When the rear side of the fan contacts the annular heater 302, it stops moving. The connecting plate 403 continues to move forward. When the pressure sensor 406 contacts the support plate 408, it senses the pressure and stops the movement of the connecting plate 403 through the program. At this time, the fan is fixed. Start the drive motor 2, which drives the driven shaft 103 to rotate via belt drive. The driven shaft 103, in conjunction with the coupling sleeve 105, drives the fan shaft to rotate. The size of the coupling sleeve 105 can be customized as long as it can fit and connect with the fan shaft. Driven shaft 103 drives trigger wheel A104 to rotate, triggering counting sensor A106 to count and calculate the fan operating speed; both counting sensor A106 and counting sensor B704 are inductive proximity sensors. The temperature sensor A303 can directly detect the fan temperature, and the temperature sensor B705 can detect the outlet air temperature. When it is necessary to simulate the temperature of the fan under working conditions, an annular heater 302 can be used to heat it to the normal working temperature of the fan casing. The fan continues to rotate, and it can be tested whether the internal shaft or fan blades will deform and jam due to the increase in temperature. The connecting seat 7 is manually installed at the fan outlet using the handle 706 and fixed by magnetic frame 8. When the fan blows air, the air passes through the octagonal cylinder 701, which drives the impeller 702 and trigger wheel B703 to rotate, triggering the counting sensor B704 to count and calculate the air volume. By measuring the wind speed and temperature, it is verified whether the fan can maintain normal operation.

Claims

1. A testing device for a fan cooling assembly, characterized in that, include: A bottom support (1) is provided, and a transmission frame (101) is fixedly installed on the top rear side of the bottom support (1). A support shaft seat (102) is fixedly installed on the top of the transmission frame (101). A driven shaft (103) is rotatably installed in the support shaft seat (102). The front end of the driven shaft (103) is a hexagonal structure, and a connecting sleeve (105) is slidably installed on the outside of the hexagonal structure. A drive motor (2) is fixedly installed on the top of the bottom support (1), and a belt drive connection is provided between the drive motor (2) and the driven shaft (103). A vertical frame (3) is fixedly installed in the middle of the top of the bottom support (1). A middle frame (301) is fixedly installed; two sets of hinge seats (4) are fixedly installed on both sides of the top of the bottom support (1); two sets of electric cylinders (5) are fixedly installed on the front side of the top of the bottom support (1), and a rotating roller frame (501) is fixedly installed on the telescopic end of the electric cylinder (5), and a support roller (502) is rotatably installed above the rotating roller frame (501); a positioning vertical frame (6) is fixedly installed on the left side of the top of the bottom support (1), and a connecting seat (7) is connected to the top of the positioning vertical frame (6) through a gooseneck tube. An octagonal cylinder (701) is integrally installed above the connecting seat (7), and a magnetic frame (8) is fixedly installed at the bottom of the connecting seat (7).

2. The testing device for a fan cooling assembly as described in claim 1, characterized in that, A trigger wheel A (104) is fixedly installed on the outside of the driven shaft (103). A protruding structure is integrally provided on the outside of the trigger wheel A (104). A counting sensor A (106) is mounted at the top center of the transmission frame (101). The counting sensor A (106) can detect the protruding structure of the trigger wheel A (104).

3. The testing device for a fan cooling assembly as described in claim 1, characterized in that, The front end of the intermediate frame (301) is fixedly provided with an annular heater (302), and the annular heater (302) has six sets of through holes, each of which is fixedly provided with a temperature sensor A (303).

4. The testing device for a fan cooling assembly as described in claim 1, characterized in that, Two sets of long connecting rods (401) are hinged on the front side of the hinge seat (4). The front ends of the two sets of long connecting rods (401) on the same side are hinged to movable hinge seats (402), and the two sets of long connecting rods (401) on the same side are parallel. The front ends of the two sets of movable hinge seats (402) are fixedly provided with connecting plates (403). The middle outer side of the lower long connecting rod (401) is hinged to short connecting rods (404), and the outer side of the two sets of short connecting rods (404) is hinged to U-shaped frames (405). The top middle of the bottom support (1) is rotatably provided with a lead screw (107), and the top middle rear side of the bottom support (1) is fixedly provided with a servo motor (108). The servo motor (108) is connected to the lead screw (107) for transmission, and the U-shaped frame (405) is threadedly connected to the lead screw (107).

5. The testing device for a fan cooling assembly as described in claim 4, characterized in that, A pressure sensor (406) is fixedly installed in the middle of the connecting plate (403); two sets of spring rods (407) are slidably installed on both sides of the connecting plate (403), and springs are sleeved on the rear ends of the spring rods (407). A support plate (408) is fixedly installed at the rear ends of the spring rods (407), and two sets of pads (409) are fixedly installed at both ends of the rear side of the support plate (408).

6. The testing device for a fan cooling assembly as described in claim 1, characterized in that, Two sets of guide rods (503) are fixedly installed on both sides of the bottom of the roller frame (501); four sets of L-shaped seats (109) are fixedly installed on the top of the bottom support (1), and the guide rods (503) are slidably connected to the L-shaped seats (109).

7. The testing device for a fan cooling assembly as described in claim 1, characterized in that, A U-shaped bracket (601) is slidably arranged in the positioning frame (6). The opening of the U-shaped bracket (601) faces to the right, and a magnetic plate (602) is fixedly arranged at the right end of the U-shaped bracket (601).

8. The testing device for a fan cooling assembly as described in claim 1, characterized in that, An impeller (702) is rotatably mounted inside the octagonal cylinder (701). The rear end of the impeller (702) shaft passes through the octagonal cylinder (701) and a trigger wheel B (703) is fixedly mounted thereon. A protruding structure is integrally mounted on the outside of the trigger wheel B (703). A counting sensor B (704) is fixedly mounted on the rear side of the octagonal cylinder (701). The counting sensor B (704) can detect the protruding structure of the trigger wheel B (703). A wedge-shaped blocking structure is integrally mounted on one side inside the octagonal cylinder (701).

9. The testing device for a fan cooling assembly as described in claim 1, characterized in that, Two sets of temperature sensors B (705) are fixedly installed on both sides of the octagonal cylinder (701), and a handle (706) is integrally installed on the outside of the octagonal cylinder (701).

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