Fan shell fixing jig

Abstract

The utility model discloses a fan shell fixing jig which comprises a bottom plate and an angle fixing plate. Supporting plates are arranged at the left end and the right end of the upper surface of the bottom plate, first supporting rods are installed between the two supporting plates, adjusting plates are installed between the two first supporting rods, and rotating grooves are formed in the upper surfaces of the adjusting plates; the angle fixing plate comprises rotating plates, the rotating plates are rotationally connected to the interior of the rotating groove through rotating shafts I respectively, the two rotating plates are bilaterally symmetrical, a second supporting rod and a first supporting rod are arranged between the lower surfaces of the rotating plates and the bottom wall of the rotating groove respectively, the angle fixing plate further comprises a PLC, the PLC is located on the left side of the bottom plate, and the input end of the PLC is electrically connected to an external power source. According to the fan shell fixing jig, the angle fixing jig can be adjusted according to different overall dimensions of the fan shell, the application range of the angle fixing jig is widened, the gravity center position of the fan shell can be judged conveniently, and the angle of the fan shell can be fixed more stably through the jig.

Description

Technical Field

[0001] The utility model relates to the technical field of fan casings, in particular to a fan casing fixing fixture. Background Art

[0002] The fan casing is the outer shell of the fan, usually made of steel or concrete. Its main function is to protect the internal parts of the fan from the influence of the external environment, such as wind, rain, ice and snow, etc. At the same time, the fan casing also has the function of fixing and supporting the entire fan structure. The fan casing is often a volute, which can guide the airflow, increase the airflow pressure and reduce energy loss. In the processing of the fan casing, because the surface of the fan casing is mostly arc-shaped and the angle is prone to change, it is necessary to use an angle fixing fixture to fix the angle of the fan casing to facilitate subsequent processing; in the prior art, a V-shaped positioning plate is often used to fix the angle of the fan casing, so that the fan casing is fixed in the middle of the V-shaped positioning plate under the action of gravity, but according to different usage needs, there will be differences in the external dimensions of the fan casing. The range of fan casings that can be applied to a single V-shaped positioning plate is small, and it is inconvenient to determine the center of gravity of the fan casing in the fixing fixture, which is easy to affect the stability of the fan casing angle fixation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fan casing fixing fixture. The angle fixing fixture can be adjusted according to the different external dimensions of the fan casing, thereby improving the application range of the angle fixing fixture, facilitating the judgment of the center of gravity position of the fan casing, and making the fixture more stable in fixing the angle of the fan casing, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fan housing fixing fixture, comprising a bottom plate and an angle fixing plate;

[0005] Bottom plate: Support plates are provided at both ends of the upper surface, first support rods are respectively installed between the two support plates, and adjustment plates are respectively installed between the two first support rods, and rotation grooves are provided on the upper surfaces of the adjustment plates;

[0006] Angle fixing plate: comprising a rotating plate, which is rotatably connected to the inside of the rotating groove through a rotating shaft. The two rotating plates are symmetrical on the left and right. A second support rod is respectively provided between the lower surface of the rotating plate and the bottom wall of the rotating groove. The angle fixing jig can be adjusted according to the different external dimensions of the fan casing, thereby improving the application range of the angle fixing jig, facilitating the judgment of the center of gravity position of the fan casing, and making the angle fixation of the fan casing by the jig more stable.

[0007] Furthermore, it also includes a PLC controller, which is located on the left side of the base plate. The input end of the PLC controller is electrically connected to an external power supply to control the start and stop of the entire device.

[0008] Furthermore, the angle fixing plate also includes a slide groove, a slide column, a flat plate and a pressure sensor. The slide grooves are respectively arranged on the upper surface of the rotating plate. The inside of the slide grooves are slidably connected with slide columns. A flat plate is provided between the upper ends of four slide columns located on the same rotating plate. The bottom wall of the slide groove is provided with a pressure sensor. The output end of the pressure sensor is electrically connected to the input end of the PLC controller to detect the center of gravity of the fan casing.

[0009] Furthermore, the angle fixing plate also includes rubber pads, which are respectively arranged on the upper surface of the flat plate to increase the friction force of the surface of the flat plate.

[0010] Furthermore, the second support rod includes an electro-hydraulic telescopic rod, a rotating block and a fixed plate. The telescopic end and the fixed end of the electro-hydraulic telescopic rod are both provided with a rotating block. The surface of the rotating block is rotatably connected to the fixed plate through a second rotating shaft. The lower fixed plates are respectively fixedly connected to the bottom wall of the rotating groove, and the upper fixed plates are respectively fixedly connected to the lower surface of the rotating plate. The input ends of the electro-hydraulic telescopic rods are electrically connected to the output ends of the PLC controller to provide power and support for the rotation of the rotating plate.

[0011] Furthermore, the first support rods are all threaded rods, which are rotatably connected between the two support plates. The threads on the left and right ends of the first support rods are in opposite directions, and the adjustment plates are threadedly connected between the two first support rods to facilitate the adjustment of the distance between the two rotating plates.

[0012] Furthermore, a motor is provided at the right end of the upper surface of the base plate, and the left end of the output shaft of the motor is fixedly connected to the adjacent first support rod. The input end of the motor is electrically connected to the output end of the PLC controller to provide power for the rotation of the first support rod.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] When in use, the large fan casing is placed between the upper surfaces of the two flat plates. According to the external dimensions of the large fan casing, the motor is started through the PLC controller to adjust the distance between the two flat plates. At the same time, the electro-hydraulic telescopic rod is started to adjust the angle between the two flat plates. The angle of the large fan casing is fixed by using the two inclined flat plates. During the fixing process, the large fan casing applies a force to the flat plates. By comparing the magnitude of the force applied to the two flat plates, it is determined whether the center of gravity of the large fan casing is at the center position of the two flat plates, so that the angle fixation of the large fan casing is more stable. The angle fixing fixture can be adjusted according to the different external dimensions of the fan casing to improve the application range of the angle fixing fixture, facilitate the judgment of the center of gravity position of the fan casing, and make the angle fixation of the fan casing by the fixture more stable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a structural schematic diagram of the front cross-section of the angle fixing plate of the utility model.

[0017] In the figure: 1 bottom plate, 2 support plate, 3 first support rod, 4 adjustment plate, 5 rotating groove, 6 angle fixing plate, 61 rotating plate, 62 sliding groove, 63 sliding column, 64 flat plate, 65 rubber pad, 66 pressure sensor, 7 second support rod, 71 electro-hydraulic telescopic rod, 72 rotating block, 73 fixing plate, 8 motor, 9 PLC controller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 , This embodiment provides a technical solution: a fan casing fixing fixture, including a bottom plate 1 and an angle fixing plate 6;

[0020] Bottom plate 1: Support plates 2 are provided at both left and right ends of its upper surface, first support rods 3 are respectively installed between the two support plates 2, and adjustment plates 4 are respectively installed between the two first support rods 3. Rotation grooves 5 are provided on the upper surfaces of the adjustment plates 4 to provide support and space for the setting of the angle fixing components. The bottom plate 1 also includes a PLC controller 9, which is located on the left side of the bottom plate 1. The input end of the PLC controller 9 is electrically connected to an external power supply to control the start and stop of the overall device. The first support rods 3 are all threaded rods, which are rotatably connected between the two support plates 2, and the threads on the left and right ends of the first support rod 3 are in opposite directions. The adjustment plates 4 are respectively threadedly connected to the two first support rods 3. A support rod 3 is provided between the two first support rods 3. When the first support rod 3 rotates, the two first support rods 3 are connected with an adjustment plate 4 through a threaded connection. While limiting the rotation of the adjustment plate 4, the two adjustment plates 4 are driven to move left and right. At the same time, the thread directions of the left and right ends of the first support rod 3 are opposite, so that the movement directions of the two adjustment plates 4 are opposite, and the spacing between the two flat plates 64 is adjusted. It is suitable for fan casings of different external sizes. The right end of the upper surface of the bottom plate 1 is respectively provided with a motor 8. The left end of the output shaft of the motor 8 is respectively fixedly connected to the adjacent first support rod 3. The input end of the motor 8 is electrically connected to the output end of the PLC controller 9 to provide power for the rotation of the first support rod 3.

[0021] Angle fixing plate 6: includes a rotating plate 61, which is rotatably connected to the inside of the rotating groove 5 through a rotating shaft 1. The two rotating plates 61 are symmetrical. A second support rod 7 is respectively provided between the lower surface of the rotating plate 61 and the bottom wall of the rotating groove 5. By adjusting the length of the second support rod 7, the rotating plate 61 is rotated around the rotating shaft 1, the angle between the two rotating plates 61 is changed, and the placement angle of the fan housing is fixed. The angle fixing plate 6 also includes a slide groove 62, a slide column 63, a flat plate 64 and a pressure sensor 66. The slide groove 62 is respectively provided on the rotating plate 61. On the upper surface, the interior of the slide groove 62 is slidably connected with a slide column 63, and a flat plate 64 is provided between the upper ends of the four slide columns 63 located on the same rotating plate 61. The bottom wall of the slide groove 62 is provided with a pressure sensor 66, and the output end of the pressure sensor 66 is electrically connected to the input end of the PLC controller 9. During the fixing process, the large fan housing applies a force to the flat plate 64, and the slide column 63 slides in the slide groove 62 to transmit the force to the detection end of the pressure sensor 66, and the force applied by the large fan housing to the flat plate 64 is detected. By comparing the two The force applied to the flat plate 64 determines whether the center of gravity of the large fan housing is at the center of the two flat plates 64, so that the angle of the large fan housing is more stable. The angle fixing plate 6 also includes a rubber pad 65, which is respectively arranged on the upper surface of the flat plate 64 to increase the friction force on the surface of the flat plate 64, so that the angle of the large fan housing is more stable. The second support rod 7 includes an electro-hydraulic telescopic rod 71, a rotating block 72 and a fixed plate 73. The telescopic end and the fixed end of the electro-hydraulic telescopic rod 71 are both provided with a rotating block 72. The rotating block 72 The surfaces are rotatably connected with fixed plates 73 through rotating shaft 2. The lower fixed plates 73 are respectively fixedly connected to the bottom wall of the rotating groove 5, and the upper fixed plates 73 are respectively fixedly connected to the lower surface of the rotating plate 61. The input ends of the electro-hydraulic telescopic rods 71 ​​are electrically connected to the output ends of the PLC controller 9. When the electro-hydraulic telescopic rods 71 ​​are started, the telescopic ends of the electro-hydraulic telescopic rods 71 ​​are telescoped. Through the relative rotation of the rotating block 72 and the fixed plate 73, the rotating plate 61 is driven to rotate around the rotating shaft 1 as the center, providing power for the rotation of the rotating plate 61 and providing support for the rotating plate 61.

[0022] The working principle of a fan casing fixing fixture provided by the utility model is as follows: when in use, the large fan casing is placed between the upper surfaces of the two flat plates 64, and the motor 8 is started through the PLC controller 9 according to the external dimensions of the large fan casing. The output shaft of the motor 8 drives the first support rod 3 to rotate, and the two first support rods 3 are connected to an adjustment plate 4 through a threaded connection. While limiting the rotation of the adjustment plate 4, the two adjustment plates 4 are driven to move left and right. At the same time, the threads at the left and right ends of the first support rod 3 are in opposite directions, so that the movement directions of the two adjustment plates 4 are opposite, and the spacing between the two flat plates 64 is adjusted. At the same time, the electro-hydraulic telescopic rod 71 is started, and the telescopic end of the electro-hydraulic telescopic rod 71 is Telescopic, through the relative rotation of the rotating block 72 and the fixed plate 73, the rotating plate 61 is driven to rotate around the rotating shaft 1, the angle between the two flat plates 64 is adjusted, and the angle of the large fan casing is fixed by using the two inclined flat plates 64. During the fixing process, the large fan casing applies a force to the flat plate 64, and the sliding column 63 slides in the sliding groove 62 to transmit the force to the detection end of the pressure sensor 66 to detect the size of the force applied by the large fan casing on the flat plate 64. By comparing the size of the force applied to the two flat plates 64, it is determined whether the center of gravity of the large fan casing is at the center position of the two flat plates 64, so that the angle fixation of the large fan casing is more stable.

[0023] It is worth noting that the PLC controller 9 disclosed in the above embodiment can use the NX7 model PLC controller, the pressure sensor 66, the electro-hydraulic telescopic rod 71 and the motor 8 can be freely configured according to the actual application scenario, the pressure sensor 66 can use the DJYL-SX model pressure transmitter, the electro-hydraulic telescopic rod 71 can use the DYTZ-C model electric hydraulic push rod, the motor 8 can use the 42BYHJ01 model stepping reduction motor, and the PLC controller 9 controls the pressure sensor 66, the electro-hydraulic telescopic rod 71 and the motor 8 using methods commonly used in the prior art.

[0024] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification 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 fan casing fixing fixture, characterized in that: It comprises a bottom plate (1) and an angle fixing plate (6); Bottom plate (1): support plates (2) are provided at both left and right ends of its upper surface, first support rods (3) are respectively installed between the two support plates (2), adjustment plates (4) are respectively installed between the two first support rods (3), and rotation grooves (5) are provided on the upper surfaces of the adjustment plates (4); The angle fixing plate (6) comprises a rotating plate (61), wherein the rotating plates (61) are rotatably connected to the inside of the rotating groove (5) via a rotating shaft, the two rotating plates (61) are symmetrical, and a second supporting rod (7) is respectively provided between the lower surface of the rotating plate (61) and the bottom wall of the rotating groove (5).

2. A fan casing fixing fixture according to claim 1, characterized in that: It also comprises a PLC controller (9), which is located on the left side of the base plate (1), and an input end of the PLC controller (9) is electrically connected to an external power supply.

3. A fan casing fixing fixture according to claim 2, characterized in that: The angle fixing plate (6) further comprises a slide groove (62), a slide column (63), a flat plate (64) and a pressure sensor (66); the slide grooves (62) are respectively arranged on the upper surface of the rotating plate (61); the interior of the slide grooves (62) is slidably connected with the slide column (63); a flat plate (64) is arranged between the upper ends of four slide columns (63) located on the same rotating plate (61); the bottom wall of the slide groove (62) is provided with a pressure sensor (66); the output end of the pressure sensor (66) is electrically connected to the input end of the PLC controller (9).

4. A fan casing fixing fixture according to claim 3, characterized in that: The angle fixing plate (6) further comprises rubber pads (65), and the rubber pads (65) are respectively arranged on the upper surface of the flat plate (64).

5. The fan casing fixing fixture according to claim 2, characterized in that: The second support rod (7) comprises an electro-hydraulic telescopic rod (71), a rotating block (72) and a fixed plate (73); the telescopic end and the fixed end of the electro-hydraulic telescopic rod (71) are both provided with a rotating block (72); the surface of the rotating block (72) is rotatably connected to the fixed plate (73) via a second rotating shaft; the lower fixed plate (73) is respectively fixedly connected to the bottom wall of the rotating groove (5); the upper fixed plate (73) is respectively fixedly connected to the lower surface of the rotating plate (61); the input end of the electro-hydraulic telescopic rod (71) is electrically connected to the output end of the PLC controller (9).

6. A fan casing fixing fixture according to claim 2, characterized in that: The first support rods (3) are all threaded rods. The first support rods (3) are rotatably connected between the two support plates (2). The threads at the left and right ends of the first support rods (3) are in opposite directions. The adjustment plates (4) are threadably connected between the two first support rods (3).

7. A fan casing fixing fixture according to claim 6, characterized in that: A motor (8) is provided at the right end of the upper surface of the base plate (1), the left end of the output shaft of the motor (8) is fixedly connected to the adjacent first support rod (3), and the input end of the motor (8) is electrically connected to the output end of the PLC controller (9).

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