Rotation angle real-time measuring device for adjustable front guide vane of fan

Abstract

The utility model relates to the field of fan front guide vanes, in particular to a real-time measurement device for the rotation angle of an adjustable front guide vane of a fan. Comprising a fan body, the arc surface of a fixing column is rotationally connected with a plurality of rotating shafts, the arc surfaces of the rotating shafts are fixedly connected with guide blades, an adjusting structure is arranged on the inner wall of a fixing frame, the adjusting structure comprises an adjusting rod, and the adjusting rod is rotationally connected with the fixing frame. The upper end of the adjusting rod is fixedly connected with the output end of the driving device, the lower end of the adjusting rod is fixedly connected with the rotating shaft, the arc surface of the adjusting rod is fixedly connected with a pointer, and an indicating plate is fixedly connected to the position, corresponding to the pointer, of one side of the fixing frame. According to the rotation angle real-time measuring device for the adjustable front guide vane of the fan, the pointer and the driving wheel can be driven to rotate in the rotation process of the adjusting rod, the pointer is matched with the dial gauge on the indicator board, and the digital instrument can visually display the rotation angle of the guide vane.

Description

Technical Field

[0001] The utility model relates to the field of fan guide vanes, in particular to a real-time measurement device for the rotation angle of an adjustable fan guide vane. Background Art

[0002] The main function of the fan guide vane is to change the direction of the airflow and adjust the flow rate. It has the advantages of reducing the inlet vortex, reducing the resistance, and improving the efficiency and stability of the fan. The rotation angle of the fan guide vane corresponds to different inlet airflow, rotation direction and speed.

[0003] In the prior art, when adjusting the rotation angle of the leading guide vanes of a fan, a drive device is activated. The output end of the drive device drives one of the rotating shafts to rotate. When the rotating shaft rotates in conjunction with the synchronization frame, it drives all the rotating shafts to rotate synchronously. The rotating shaft in turn drives the guide vanes to rotate, so that the leading guide vanes rotate to the appropriate angle. The rotation angles of the output end of the drive device, the rotating shaft, and the leading guide vanes are the same. However, this operation will cause the following problems: the rotation angle of the leading guide vanes is not convenient to measure directly, and the user cannot intuitively judge the rotation angle of the leading guide vanes during on-site monitoring. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcoming in the prior art that workers cannot directly measure and judge the rotation angle of the leading guide vane on site.

[0005] In order to solve the above technical problems, the utility model provides a real-time measurement device for the rotation angle of adjustable leading guide vanes of a fan, comprising: a fan body, an inner wall of the fan body is fixedly connected to a fixing column, the arc surface of the fixing column is rotatably connected to a plurality of rotating shafts, the arc surface of the rotating shaft is rotatably connected to the fan body, the arc surface of the rotating shaft is fixedly connected to the guide vanes, a synchronous frame is installed on the outer surface of the fan body, the synchronous frame is movably connected to an end of the rotating shaft away from the fixed column, a fixing frame is fixedly connected to the position of the outer surface of the fan body corresponding to the rotating shaft, a driving device is installed on the upper surface of the fixing frame, an inner wall of the fixing frame is provided with an adjusting structure, the adjusting structure includes an adjusting rod, and the adjusting rod is rotatably connected to the fixing frame, The upper end of the adjusting rod is fixedly connected to the output end of the driving device, the lower end of the adjusting rod is fixedly connected to the rotating shaft, the arc surface of the adjusting rod is fixedly connected to a pointer, an indicator plate is fixedly connected to the position of the pointer on one side of the fixing frame, a scale is provided on the side of the indicator plate away from the fixing frame, the arc surface of the adjusting rod is fixedly connected to a driving wheel, the tooth surface of the driving wheel is engaged with a driven wheel, the driving wheel and the driven wheel have the same diameter, the upper surface of the driven wheel is fixedly connected to a connecting rod, the top side of the inner wall of the fixing frame is fixedly connected to an angle sensor, the rotating end of the angle sensor is fixedly connected to the connecting rod, a digital meter is fixedly connected to one side of the fixing frame, and the digital meter is electrically connected to the angle sensor.

[0006] The effect achieved by the above components is: when the adjusting rod rotates, the pointer and the driving wheel will be driven to rotate. The pointer cooperates with the scale on the indicator board, and the digital instrument will intuitively display the rotation angle of the guide vane, which is convenient for users to monitor and record.

[0007] Preferably, the arc surface of the connecting rod is rotatably connected to a support plate, and both ends of the support plate are fixedly connected to a fixing frame.

[0008] The effect achieved by the above components is: further supporting the connecting rod through the support plate, making the connecting rod more stable during operation.

[0009] Preferably, two positioning blocks are fixedly connected to a side of the fixing bracket close to the digital meter.

[0010] The effect achieved by the above components is: the connection line between the angle sensor and the digital instrument is positioned by the positioning block, which is convenient for users to organize.

[0011] Preferably, the driving wheel and the driven wheel are both steel gears.

[0012] The effect achieved by the above components is that when the driving wheel and the driven wheel use steel gears, they have better stability and service life.

[0013] Preferably, an auxiliary structure is provided on the side of the fixing frame away from the digital instrument, and the auxiliary structure includes a mounting frame, the inner wall of the mounting frame is slidably connected to the rear cover frame and the front cover frame, the rear cover frame and the front cover frame are respectively located on both sides of the fixing frame, and an observation plate is fixedly connected to the surface of the front cover frame at a position corresponding to the indicator plate, and the observation plate is a transparent acrylic plate, and the outer surface of the mounting frame is slidably connected to the limit frame, the arc surface of the limit frame is covered with a spring, and the two ends of the spring are respectively fixedly connected to the limit frame and the mounting frame, and the lower surface of the limit frame is fixedly connected to two limit rods, and the arc surface of the limit rods is slidably connected to the rear cover frame and the front cover frame.

[0014] The effects achieved by the above components are: the front cover frame and the rear cover frame are used to shield and protect the parts inside the fixing frame, and the front cover frame and the rear cover frame can be assembled and disassembled in conjunction with the mounting frame, which is convenient for users to perform subsequent maintenance.

[0015] Preferably, a pull ring is rotatably connected to the upper surface of the limiting frame.

[0016] The effect achieved by the above components is that the limit frame is moved by operating the pull ring, making it convenient for the user to move the limit frame.

[0017] Preferably, the lower end of the limiting rod is arc-shaped.

[0018] The effect achieved by the above components is that the lower ends of the limit rods are arc-shaped, which facilitates the two limit rods to slide into the front cover frame and the rear cover frame respectively.

[0019] Compared with related technologies, the device for real-time measurement of the rotation angle of an adjustable leading guide vane of a fan provided by the present invention has the following beneficial effects:

[0020] The utility model provides a real-time measurement device for the rotation angle of adjustable leading guide vanes of a fan. When the rotation angle of the leading guide vanes of the fan is adjusted, the driving device is started, and the output end of the driving device drives one of the rotating shafts to rotate. When the rotating shaft cooperates with the synchronous frame to rotate, it will drive all the rotating shafts to rotate synchronously, and the rotating shaft will drive the guide vanes to rotate, so that the leading guide vanes are rotated to a suitable angle, wherein the rotation angles of the output end of the driving device, the rotating shaft and the leading guide vanes are the same. However, this operation will cause the following problems: the rotation angle of the leading guide vanes is not convenient to measure directly, and the user cannot intuitively judge the rotation angle of the leading guide vanes during on-site monitoring. By setting an adjustment structure, the pointer and the driving wheel will be driven to rotate during the rotation of the adjusting rod. The pointer cooperates with the scale on the indicator board, and the digital instrument will intuitively display the rotation angle of the guide vanes, which is convenient for the user to monitor and record.

[0021] The fixing frame lacks a protective structure, and the driving wheel, driven wheel, angle sensor, etc. are prone to dust accumulation or damage. Through the auxiliary structure, the front cover frame and the rear cover frame are used to shield and protect the parts inside the fixing frame. The front cover frame and the rear cover frame are easy to disassemble and assemble in conjunction with the installation frame, which is convenient for users to maintain later. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a device for real-time measurement of the rotation angle of an adjustable leading guide vane of a fan provided by the utility model;

[0023] Figure 2 for Figure 1 A schematic structural diagram of the regulatory structure shown;

[0024] Figure 3 for Figure 2 A schematic diagram of a portion of the regulatory structure shown;

[0025] Figure 4 for Figure 1 A schematic structural diagram of the auxiliary structure shown;

[0026] Figure 5 for Figure 4 Schematic diagram of the disassembled structure of the auxiliary structure shown.

[0027] Numbers in the figure: 1. Fan body; 2. Fixed column; 3. Rotating shaft; 4. Guide blade; 5. Synchronous frame; 6. Fixed frame; 7. Driving device; 8. Adjusting structure; 801. Adjusting rod; 802. Pointer; 803. Indicator board; 804. Scale; 805. Driving wheel; 806. Driven wheel; 807. Connecting rod; 808. Support plate; 809. Angle sensor; 810. Digital instrument; 811. Positioning block; 9. Auxiliary structure; 91. Mounting frame; 92. Rear cover frame; 93. Front cover frame; 94. Observation plate; 95. Limiting frame; 96. Spring; 97. Limiting rod; 98. Pull ring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0030] See also Figures 1 to 5, an embodiment of the utility model provides a real-time measurement device for the rotation angle of an adjustable leading guide vane of a fan, comprising: a fan body 1, a fixing column 2 fixedly connected to the inner wall of the fan body 1, a plurality of rotating shafts 3 rotatably connected to the circular arc surface of the fixing column 2, the circular arc surface of the rotating shaft 3 is rotatably connected to the fan body 1, and a guide blade 4 is fixedly connected to the circular arc surface of the rotating shaft 3, a synchronization frame 5 is installed on the outer surface of the fan body 1, the synchronization frame 5 is movably connected to the end of the rotating shaft 3 away from the fixing column 2, a fixing frame 6 is fixedly connected to the position of the outer surface of the fan body 1 corresponding to the rotating shaft 3, a driving device 7 is installed on the upper surface of the fixing frame 6, an adjusting structure 8 is provided on the inner wall of the fixing frame 6, and an auxiliary structure 9 is provided on the side of the fixing frame 6 away from the digital instrument 810.

[0031] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 The adjusting structure 8 includes an adjusting rod 801, which is rotatably connected to the fixing frame 6, the upper end of the adjusting rod 801 is fixedly connected to the output end of the driving device 7, the lower end of the adjusting rod 801 is fixedly connected to the rotating shaft 3, the arc surface of the adjusting rod 801 is fixedly connected to a pointer 802, an indicator plate 803 is fixedly connected to the position of the pointer 802 on one side of the fixing frame 6, and a scale 804 is provided on the side of the indicator plate 803 away from the fixing frame 6, the arc surface of the adjusting rod 801 is fixedly connected to a driving wheel 805, the tooth surface of the driving wheel 805 is meshed with a driven wheel 806, the diameters of the driving wheel 805 and the driven wheel 806 are the same, the upper surface of the driven wheel 806 is fixedly connected to a connecting rod 807, the top side of the inner wall of the fixing frame 6 is fixedly connected to an angle sensor 809, the rotating end of the angle sensor 809 is fixedly connected to the connecting rod 807, and a digital meter 810 is fixedly connected to one side of the fixing frame 6. 10 is electrically connected to the angle sensor 809. During the rotation of the adjustment rod 801, the pointer 802 and the driving wheel 805 will be driven to rotate. The pointer 802 cooperates with the scale 804 on the indicator plate 803, and the digital instrument 810 will intuitively display the rotation angle of the guide vane 4, which is convenient for the user to monitor and record. The arc surface of the connecting rod 807 is rotatably connected to the support plate 808. The two ends of the support plate 808 are fixedly connected to the fixing frame 6. The connecting rod 807 is further supported by the support plate 808, so that the connecting rod 807 is more stable when working. Two positioning blocks 811 are fixedly connected to the side of the fixing frame 6 close to the digital instrument 810. The connecting line between the angle sensor 809 and the digital instrument 810 is positioned by the positioning block 811, which is convenient for the user to organize. The driving wheel 805 and the driven wheel 806 are both steel gears. When the driving wheel 805 and the driven wheel 806 use steel gears, they have better stability and service life.

[0032] In the embodiments of the present invention, please refer to Figure 4 and Figure 5, the auxiliary structure 9 includes a mounting frame 91, the inner wall of the mounting frame 91 is slidably connected to a rear cover frame 92 and a front cover frame 93, the rear cover frame 92 and the front cover frame 93 are respectively located on both sides of the fixing frame 6, and the surface of the front cover frame 93 is fixedly connected to an observation plate 94 at a position corresponding to the indicator plate 803, and the observation plate 94 is a transparent acrylic plate. The outer surface of the mounting frame 91 is slidably connected to a limit frame 95, and the arc surface of the limit frame 95 is covered with a spring 96. The two ends of the spring 96 are respectively fixedly connected to the limit frame 95 and the mounting frame 91, and the lower surface of the limit frame 95 is fixedly connected to two limit rods 97. The arc surface of the positioning rod 97 is slidably connected to the rear cover frame 92 and the front cover frame 93, and the front cover frame 93 and the rear cover frame 92 are used to shield and protect the parts inside the fixing frame 6. The front cover frame 93 and the rear cover frame 92 cooperate with the installation frame 91 to make the disassembly and assembly operation simple and convenient, which is convenient for the user to perform subsequent maintenance. The upper surface of the limiting frame 95 is rotatably connected to a pull ring 98, and the operation of the pull ring 98 drives the limiting frame 95 to move, which is convenient for the user to move the limiting frame 95. The lower end of the limiting rod 97 is in an arc shape, and the lower end of the limiting rod 97 is in an arc shape, which is convenient for the two limiting rods 97 to slide into the front cover frame 93 and the rear cover frame 92 respectively;

[0033] The working principle of the device for real-time measurement of the rotation angle of the adjustable front guide vane of the fan provided by the present invention is as follows: by setting the adjustment structure 8, the driving device 7 is first started, the output end of the driving device 7 drives the adjustment rod 801 to rotate, and the adjustment rod 801 drives the rotating shaft 3 to rotate. During this process, the adjustment rod 801 drives the pointer 802 to slide along the arc surface of the indicator plate 803, and the rotation angle of the guide vane 4 is judged by the reading of the scale 804 on the indicator plate 803 corresponding to the pointer 802. During the rotation of the adjustment rod 801, the driving wheel 805 is driven to rotate, and the driving wheel 805 drives the driven wheel 806 to rotate, and the driven wheel 806 drives the output end of the angle sensor 809 through the connecting rod 807. Rotation. Since the driving wheel 805 and the driven wheel 806 are meshed and have the same diameter, the values of the rotation angles of the driving wheel 805 and the driven wheel 806 are the same. The angle sensor 809 transmits the detected rotation angle to the digital instrument 810 in the form of an electrical signal. The digital instrument 810 displays the rotation angle of the leading guide vane on the screen. The connecting rod 807 is further supported by the support plate 808 to make the connecting rod 807 more stable when working. The connecting line between the angle sensor 809 and the digital instrument 810 is positioned by the positioning block 811 to facilitate the user's arrangement. When the driving wheel 805 and the driven wheel 806 use steel gears, they have better stability and service life.

[0034] The locking mechanism 95 is then released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released, and the locking mechanism 95 is released,

[0035] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for real-time measurement of the rotation angle of an adjustable front guide vane of a fan, characterized in that: include: A fan body (1), wherein the inner wall of the fan body (1) is fixedly connected to a fixed column (2), the arc surface of the fixed column (2) is rotatably connected to a plurality of rotating shafts (3), the arc surface of the rotating shaft (3) is rotatably connected to the fan body (1), the arc surface of the rotating shaft (3) is fixedly connected to a guide blade (4), the outer surface of the fan body (1) is installed with a synchronous frame (5), the synchronous frame (5) is movably connected to an end of the rotating shaft (3) away from the fixed column (2), the outer surface of the fan body (1) is fixedly connected to a fixed frame (6) at a position corresponding to the rotating shaft (3), the upper surface of the fixed frame (6) is installed with a driving device (7), the inner wall of the fixed frame (6) is provided with an adjusting structure (8), the adjusting structure (8) comprises an adjusting rod (801), the adjusting rod (801) is rotatably connected to the fixed frame (6), the upper end of the adjusting rod (801) is fixedly connected to the output end of the driving device (7), and the lower end of the adjusting rod (801) is fixedly connected to the rotating shaft (3) Fixed connection, the arc surface of the regulating rod (801) is fixedly connected with a pointer (802), an indicator plate (803) is fixedly connected to the position of the pointer (802) on one side of the fixing frame (6), a scale (804) is provided on the side of the indicator plate (803) away from the fixing frame (6), the arc surface of the regulating rod (801) is fixedly connected with a driving wheel (805), the tooth surface of the driving wheel (805) is meshed with a driven wheel (806), the driving wheel (805) is fixedly connected with a pointer (802), and the driving wheel (805) is fixedly connected with a pointer (802) on the other side of the fixing frame (6). The wheel (805) and the driven wheel (806) have the same diameter size, the upper surface of the driven wheel (806) is fixedly connected to a connecting rod (807), the top side of the inner wall of the fixing frame (6) is fixedly connected to an angle sensor (809), the rotating end of the angle sensor (809) is fixedly connected to the connecting rod (807), and one side of the fixing frame (6) is fixedly connected to a digital meter (810), and the digital meter (810) is electrically connected to the angle sensor (809).

2. A device for real-time measurement of the rotation angle of an adjustable leading guide vane of a fan according to claim 1, characterized in that: The arc surface of the connecting rod (807) is rotatably connected to a support plate (808), and both ends of the support plate (808) are fixedly connected to a fixing frame (6).

3. The device for real-time measurement of the rotation angle of the adjustable leading guide vane of a fan according to claim 1, characterized in that: Two positioning blocks (811) are fixedly connected to one side of the fixing frame (6) close to the digital instrument (810).

4. The device for real-time measurement of the rotation angle of an adjustable leading guide vane of a wind turbine according to claim 1, characterized in that: The driving wheel (805) and the driven wheel (806) are both steel gears.

5. The device for real-time measurement of the rotation angle of the adjustable leading guide vane of a fan according to claim 1, characterized in that: An auxiliary structure (9) is provided on a side of the fixing frame (6) away from the digital instrument (810), and the auxiliary structure (9) includes a mounting frame (91). The inner wall of the mounting frame (91) is slidably connected to a rear cover frame (92) and a front cover frame (93). The rear cover frame (92) and the front cover frame (93) are respectively located on both sides of the fixing frame (6). An observation plate (94) is fixedly connected to the surface of the front cover frame (93) at a position corresponding to the indicator plate (803). The inspection plate (94) is a transparent acrylic plate. The outer surface of the installation frame (91) is slidably connected to the limit frame (95). The arc surface of the limit frame (95) is covered with a spring (96). The two ends of the spring (96) are fixedly connected to the limit frame (95) and the installation frame (91) respectively. The lower surface of the limit frame (95) is fixedly connected to two limit rods (97). The arc surface of the limit rod (97) is slidably connected to the rear cover frame (92) and the front cover frame (93).

6. A device for real-time measurement of the rotation angle of an adjustable leading guide vane of a wind turbine according to claim 5, characterized in that: The upper surface of the limiting frame (95) is rotatably connected to a pull ring (98).

7. The device for real-time measurement of the rotation angle of the adjustable leading guide vane of a fan according to claim 5, characterized in that: The lower end of the limiting rod (97) is in an arc shape.

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