A fan rotor detection device

Abstract

The utility model discloses a fan rotor detection device, the utility model relates to rotor detection technical field. Contain device base, the device base top is provided with the placement cabin, the placement cabin horizontal three sides are surrounded and are provided with the detection board, the detection board right -end is provided with the drive motor, through vertical conduction infrared line and transverse conduction infrared line perpendicular intersection's detection network is formed, and the synchronous acquisition multidimensional multidirectional vibration data of combination infrared track survey board, constructs dynamic three -dimensional trajectory model, and the rotor vibration trajectory is directly obtained, and the detection efficiency is improved, and can through the compound shock attenuation structure that main support spring and vice support spring constitute, and the placement cabin is elastically connected with device base, and the isolation spring in cooperation clamping subassembly forms three -level vibration isolation system, reduces the resonance amplitude of detection device, reduces the detection error of rotor key index, improves equipment service life simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of rotor testing technology, specifically a fan rotor testing device. Background Technology

[0002] The rotor of a wind turbine is a crucial rotating component, and its performance directly affects the operational quality of the equipment. As the core unit for energy conversion, the rotor is typically composed of components such as a main shaft, hub, and blades. It is driven to rotate at high speed by a drive device. When the rotor is running, the blades cut into fluids such as air and flue gas through aerodynamic design, and use centrifugal force or thrust to gain velocity energy. The velocity energy is further converted into pressure energy in structures such as the volute, forming a directional airflow to achieve gas transport.

[0003] The existing technology has the following problems:

[0004] Existing testing equipment generally lacks an effective vibration isolation mechanism. When the rotor rotates at high speed, the internal testing device and the external CNC device will generate mechanical vibration due to resonance, causing displacement deviation of the external CNC device. This affects the judgment of key indicators such as rotor eccentricity and amplitude threshold, while also reducing the service life and maintenance cost of the device. Furthermore, most traditional testing equipment can only obtain rotor vibration data through a single-axis sensor and cannot construct a vibration trajectory model in three-dimensional space. The single-point detection mode requires technicians to summarize various values ​​of the rotor through complex calculations. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a fan rotor detection device that solves the problems of device resonance and unintuitive data.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a fan rotor testing device includes a device base, a placement chamber is provided at the top of the device base, a testing plate is arranged around the placement chamber on three horizontal sides, and a drive motor is provided at the right end of the testing plate.

[0007] Preferably, the placement chamber includes two protective chambers that are rotatably connected to each other and can form a cylindrical shape. Infrared conduction devices are fixedly connected to the left and right sides of the outer surface of the protective chambers. Clamping components are rotatably connected to the left and right ends of the common inner side of the two protective chambers. A support base is fixedly connected to the middle of the outer surface of the lower protective chamber.

[0008] Preferably, the detection plate includes a support plate fixedly connected to the top of the device base, an infrared trajectory measuring plate fixedly connected to the inner side of the support plate, the left end of the drive motor output end fixedly connected to the right end of the support plate, and the drive motor output end can extend to the rightmost end of the placement chamber.

[0009] Preferably, the infrared transmission device includes a fixed base fixedly connected to the outer surface of the protective cabin. Two transverse infrared rays are provided at one end of the fixed base away from the infrared transmission device on the same horizontal plane. A vertical infrared ray is fixedly connected to the top of the fixed base. The directions of the vertical infrared ray and the transverse infrared ray are perpendicular to each other.

[0010] Preferably, the support base includes a base body fixedly connected to the middle of the outer surface of the lower protective cabin, a main support spring fixedly connected to the middle of the bottom end of the base body, and auxiliary support springs fixedly connected to the four outward corners of the bottom end of the base body. The bottom ends of the main support spring and the auxiliary support springs are both fixedly connected to the top of the device base.

[0011] Preferably, the clamping assembly includes an opening and closing fixing clamp. The right end of the opening and closing fixing clamp on the right side is fixedly connected to the right end of the inner side of the lower protective cabin. A sleeve is sleeved and connected to the inner side of the opening and closing fixing clamp on the left side. The left end of the sleeve extends to the outer side of the left end of the protective cabin. A rotor sleeve is rotatably connected to the right side of the inner side of the sleeve. An isolation plate is fixedly connected to the left end of the sleeve. An isolation spring is fixedly connected to the left end of the isolation plate. The left end of the isolation spring is fixedly connected to the outer side of the infrared trajectory measuring plate.

[0012] This invention provides a placement compartment. Compared with the prior art, it has the following advantages:

[0013] 1. This wind turbine rotor detection device uses a vertically intersecting detection network composed of vertically and horizontally transmitted infrared rays. Combined with an infrared trajectory measuring plate, it synchronously collects multi-dimensional and multi-directional vibration data, constructs a dynamic three-dimensional trajectory model, and intuitively obtains the rotor vibration trajectory, thereby improving detection efficiency.

[0014] 2. This wind turbine rotor testing device uses a composite damping structure composed of a main support spring and a secondary support spring to elastically connect the placement chamber and the device base. Combined with the isolation spring in the clamping assembly, it forms a three-level vibration isolation system, reducing the resonance amplitude of the testing device, reducing the detection error of key rotor indicators, and improving the service life of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the placement compartment structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the components of this utility model.

[0018] Figure 4 This is a schematic diagram of the clamping component structure of this utility model.

[0019] In the diagram: 1. Placement chamber; 11. Protective chamber; 12. Infrared transmission device; 121. Vertical infrared transmission; 122. Fixing base; 123. Horizontal infrared transmission; 13. Clamping assembly; 131. Isolation spring; 132. Isolation plate; 133. Sleeve; 134. Rotor sleeve; 135. Opening and closing fixing clamp; 14. Support base; 141. Base body; 142. Main support spring; 143. Secondary support spring; 2. Detection plate; 21. Support plate; 22. Infrared trajectory measuring plate; 3. Drive motor; 4. Device base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a fan rotor testing device, including a device base 4, a placement chamber 1 at the top of the device base 4, a testing plate 2 arranged around the placement chamber 1 on three horizontal sides, and a drive motor 3 at the right end of the testing plate 2.

[0022] The device base 4 serves as a supporting foundation, the placement chamber 1 is used to place the fan rotor to be tested, the detection plate 2 with three horizontal sides around it monitors the rotor's operating status in real time, and the drive motor 3 at the right end drives the rotor to rotate through the output shaft, forming a basic working closed loop.

[0023] Please see Figure 2 The placement chamber 1 includes two mutually rotatable protective chambers 11 that can form a cylindrical shape. Infrared transmission devices 12 are fixedly connected to the left and right sides of the outer surface of the protective chamber 11. Clamping components 13 are rotatably connected to the left and right ends of the common inner side of the two protective chambers 11. A support base 14 is fixedly connected to the middle of the outer surface of the lower protective chamber 11.

[0024] Two rotatably connected protective chambers 11 close to form a cylindrical space that encloses the rotor; the infrared transmission devices 12 on the left and right sides are pre-positioned, and the clamping components 13 on the inner side fix the rotor shaft from both ends; the lower protective chamber 11 is connected to the device base 4 through the support base 14 to form a closed detection space and complete the rotor positioning.

[0025] Please see Figure 3The detection plate 2 includes a support plate 21 fixedly connected to the top of the device base 4. An infrared trajectory measuring plate 22 is fixedly connected to the inner side of the support plate 21. The left end of the output end of the drive motor 3 is fixedly connected to the right end of the support plate 21. The output end of the drive motor 3 can extend to the rightmost end of the placement chamber 1.

[0026] The device base 4 is fixed by the support plate 21, and the infrared trajectory measuring plate 22 on the inner side is aligned with the placement chamber 1. The output end of the drive motor 3 extends through the support plate 21 to the right end of the placement chamber 1. When the motor starts, the output shaft drives the rotor to rotate, and the infrared trajectory measuring plate 22 synchronously receives the trajectory signal of the rotor vibration.

[0027] Please see Figure 3 The infrared transmission device 12 includes a fixed base 122 fixedly connected to the outer surface of the protective cabin 11. Two transverse infrared rays 123 are provided at one end of the fixed base 122 away from the infrared transmission device 12 on the same horizontal plane. A vertical infrared ray 121 is fixedly connected to the top of the fixed base 122. The directions of the vertical infrared ray 121 and the transverse infrared ray 123 are perpendicular to each other.

[0028] The fixed base 122 supports the vertically transmitted infrared rays 121 and the horizontally transmitted infrared rays 123, which intersect vertically to form a three-dimensional detection network. When the rotor rotates and generates vibration, the infrared signal vibrates with the vibration, enabling the infrared trajectory measuring plate 22 to detect the trajectory of the infrared signal.

[0029] Please see Figure 3 The support base 14 includes a base body 141 fixedly connected to the middle of the outer surface of the lower protective chamber 11. A main support spring 142 is fixedly connected to the middle of the bottom end of the base body 141. A secondary support spring 143 is fixedly connected to the four outward corners of the bottom end of the base body 141. The bottom ends of the main support spring 142 and the secondary support spring 143 are fixedly connected to the top of the device base 4.

[0030] The main support spring 142 and the auxiliary support spring 143 are connected by the base body 141, and the bottom end of the spring is fixed to the device base 4. When the rotor rotates at high speed and causes the placement chamber 1 to vibrate, the main and auxiliary springs absorb the vibration energy through elastic deformation, reducing the interference of resonance on the detection device.

[0031] Please see Figure 4 The clamping assembly 13 includes an opening and closing fixing clamp 135. The right end of the right opening and closing fixing clamp 135 is fixedly connected to the right end of the inner side of the lower protective chamber 11. A sleeve 133 is sleeved and connected to the inner side of the left opening and closing fixing clamp 135. The left end of the sleeve 133 extends to the outer side of the left end of the protective chamber 11. A rotor sleeve 134 is rotatably connected to the right side of the inner side of the sleeve 133. An isolation plate 132 is fixedly connected to the left end of the sleeve 133. An isolation spring 131 is fixedly connected to the left end of the isolation plate 132. The left end of the isolation spring 131 is fixedly connected to the outer side of the infrared trajectory measuring plate 22.

[0032] The right-side opening and closing fixing clamp 135 is fixed inside the protective chamber 11, and the left-side opening and closing fixing clamp 135 is connected to the rotor sleeve 134 through the sleeve 133. The isolation plate 132 at the left end of the sleeve 133 and the isolation spring 131 abut against the infrared trajectory measuring plate 22. When the rotor rotates, the isolation spring 131 buffers the vibration of the clamping assembly 13 to avoid mechanical displacement from affecting the detection data.

[0033] Please see Figures 1-4 At work,

[0034] Open the two protective chambers 11 of the placement chamber 1, put the fan rotor in, fix the rotor shaft by the clamping components 13 at the left and right ends, close the protective chamber 11 to form a cylindrical space, the output shaft of the drive motor 3 extends to the right end of the placement chamber 1, connects to the rotor shaft, start the motor to drive the rotor to rotate, the infrared conduction device 12 on the outer surface of the protective chamber 11 forms a vertical detection network with vertical and horizontal infrared rays, and transmits signals in real time, the lower protective chamber 11 is connected to the device base 4 through the main support spring 142 and the auxiliary support spring 143, the elastic structure isolates vibration and reduces resonance interference, the isolation spring 131 in the clamping component 13 buffers the vibration of the clamping end, and avoids mechanical displacement from affecting the detection accuracy, and finally the system processes the trajectory data and outputs key indicators such as rotor eccentricity and amplitude.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan rotor testing device, comprising a device base (4), characterized in that: The device base (4) has a placement chamber (1) at the top, and a detection plate (2) is arranged around the placement chamber (1) on three horizontal sides. A drive motor (3) is arranged at the right end of the detection plate (2). The placement chamber (1) includes two protective chambers (11) that are rotatably connected to each other and can form a cylindrical shape. Infrared transmission devices (12) are fixedly connected to the left and right sides of the outer surface of the protective chamber (11). Clamping components (13) are rotatably connected to the left and right ends of the common inner side of the two protective chambers (11). A support base (14) is fixedly connected to the middle of the outer surface of the lower protective chamber (11).

2. The fan rotor testing device according to claim 1, characterized in that: The detection plate (2) includes a support plate (21) fixedly connected to the top of the device base (4). An infrared trajectory measuring plate (22) is fixedly connected to the inner side of the support plate (21). The left end of the output end of the drive motor (3) is fixedly connected to the right end of the support plate (21). The output end of the drive motor (3) can extend to the rightmost end of the placement chamber (1).

3. The fan rotor testing device according to claim 2, characterized in that: The infrared transmission device (12) includes a fixed base (122) fixedly connected to the outer surface of the protective cabin (11). Two horizontally transmitted infrared rays (123) are provided at one end of the fixed base (122) away from the infrared transmission device (12) on the same horizontal plane. A vertically transmitted infrared ray (121) is fixedly connected to the top of the fixed base (122). The vertically transmitted infrared ray (121) and the horizontally transmitted infrared ray (123) are perpendicular to each other.

4. The fan rotor testing device according to claim 3, characterized in that: The support base (14) includes a base body (141) fixedly connected to the middle of the outer surface of the lower protective chamber (11), and a main support spring (142) is fixedly connected to the middle of the bottom end of the base body (141).

5. A fan rotor testing device according to claim 4, characterized in that: The base body (141) has four outward corners at the bottom of each of the four auxiliary support springs (143), and the bottom ends of the main support spring (142) and the auxiliary support springs (143) are fixedly connected to the top of the device base (4).

6. The fan rotor testing device according to claim 1, characterized in that: The clamping assembly (13) includes an opening and closing fixing clamp (135). The right end of the opening and closing fixing clamp (135) on the right side is fixedly connected to the right end of the inner side of the lower protective chamber (11). A sleeve (133) is sleeved and connected to the inner side of the opening and closing fixing clamp (135) on the left side. The left end of the sleeve (133) extends to the outer side of the left end of the protective chamber (11). A rotor sleeve (134) is rotatably connected to the right side of the inner side of the sleeve (133).

7. A fan rotor testing device according to claim 6, characterized in that: An isolation plate (132) is fixedly connected to the left end of the sleeve (133), and an isolation spring (131) is fixedly connected to the left end of the isolation plate (132). The left end of the isolation spring (131) is fixedly connected to the outside of the infrared trajectory measuring plate (22).

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