Testing device of centrifugal fan

Abstract

The utility model discloses a testing device of a centrifugal fan, and belongs to the field of testing devices. The turnover plate is rotationally connected with the base; the positioning plate comprises a first plate body and a second plate body which are connected with each other, the first plate body is connected with the base, and the first plate body and the second plate body both abut against the overturning plate; the first fixing piece is connected with the base and the turnover plate; the second fixing piece is connected with the second plate body and the turnover plate; the gravity center of the turnover plate and the positioning plate are located on the two sides of the rotating position of the base and the turnover plate respectively. The utility model has the technical effect that the limiting and fixing performances are good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a testing device, especially a testing device of centrifugal fan. BACKGROUND

[0002] The centrifugal fan is a kind of fan that fluid is inhaled from the axial and is discharged along the circumferential direction by centrifugal force, and has the advantage of high efficiency.

[0003] Before delivery, the related performance of centrifugal fan generally needs to be tested, and the actual working state of centrifugal fan needs to be simulated when testing, but the limiting and fixing performance of related testing device is poor, it is difficult to simulate the actual working state of centrifugal fan, and it is easy to lead to poor test performance. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a testing device of centrifugal fan, and the limiting and fixing performance thereof are good.

[0005] TECHNICAL SCHEME

[0006] A testing device of centrifugal fan, comprising:

[0007] A base;

[0008] A turnover plate rotationally connected with the base;

[0009] A positioning plate, the positioning plate comprises a first plate body and a second plate body connected with each other, the first plate body is connected with the base, and the first plate body and the second plate body are in contact with the turnover plate;

[0010] A first fixing member connected with the base and the turnover plate;

[0011] A second fixing member connected with the second plate body and the turnover plate;

[0012] Wherein, the gravity center of the turnover plate and the positioning plate are respectively located on the two sides of the rotation of the base and the turnover plate.

[0013] Optionally, the turnover plate comprises a plate main body rotationally connected with the base, the plate main body is provided with a channel and a plurality of mounting holes, the plate main body, the first plate body and the second plate body are in contact, the plate main body and the first fixing member and the second fixing member are connected, and the gravity center of the plate main body and the positioning plate are respectively located on the two sides of the rotation of the base and the plate main body.

[0014] Optionally, the plate main body is integrally formed with an extension plate around the plate main body, the extension plate is rotationally connected with the base, and the gravity center of the plate main body and the positioning plate are respectively located on the two sides of the rotation of the base and the extension plate.

[0015] Optionally, two limiting plates are respectively connected to two ends of the turnover plate, and the two limiting plates are located at the side of the rotation of the base and the turnover plate close to the center of gravity of the turnover plate and abut against the base.

[0016] Optionally, a baffle is connected to the base, and the baffle is located at the side of the rotation of the base and the turnover plate close to the center of gravity of the turnover plate and abuts against the turnover plate.

[0017] Optionally, a reinforcing assembly is connected to the base.

[0018] Optionally, the reinforcing assembly comprises a first reinforcing member and a second reinforcing member, and one end of the first reinforcing member and one end of the second reinforcing member abut against the two sides of the rotation of the base and the turnover plate, respectively.

[0019] Optionally, the first reinforcing member and the second reinforcing member are configured as two sides of a triangle.

[0020] Optionally, the first fixing member and the second fixing member are the same in structure and each comprises:

[0021] a mounting seat connected to the base or the second plate body;

[0022] a driving member hinged to one end of the mounting seat;

[0023] a handle connected to the other end of the driving member;

[0024] a transmission member hinged to one end of the mounting seat;

[0025] a nut connected to the other end of the transmission member;

[0026] a connecting member hinged between the middle part of the driving member and the middle part of the transmission member;

[0027] a bolt threaded into the nut and abutting against the turnover plate.

[0028] Optionally, an avoiding groove is arranged on the turnover plate, and the transmission member is located in the avoiding groove.

[0029] Beneficial effects:

[0030] (1) since the center of gravity of the turnover plate and the positioning plate are located on the two sides of the rotation of the base and the turnover plate, in order to facilitate understanding, the following definitions are made, the center of gravity of the turnover plate is located on the left side of the rotation of the base and the turnover plate, the positioning plate is located on the right side of the rotation of the base and the turnover plate, when the turnover plate is placed in the horizontal position, since the positioning plate is located on the right side of the rotation of the base and the turnover plate, it ensures that the turnover plate and the centrifugal fan will not turn to the left side, and since the center of gravity of the turnover plate is located on the left side of the rotation of the base and the turnover plate, it ensures that the turnover plate and the centrifugal fan will not turn to the right side, and since the first fixing member and the base and the turnover plate are connected, it ensures that the horizontal limiting and fixing of the turnover plate are good, and further ensures that the horizontal limiting and fixing of the centrifugal fan are good;

[0031] (2) when the turnover plate is in the vertical position, since the second plate body and the turnover plate interfere with each other, it is convenient to prevent the turnover plate and the centrifugal fan from being excessively turned to the right side, and since the second fixing member and the second plate body and the turnover plate are connected, it ensures that the vertical limiting and fixing of the turnover plate are good, and further ensures that the vertical limiting and fixing of the centrifugal fan are good, which is convenient for simulating the actual working state of the centrifugal fan and ensuring good test performance. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 Figure 1 is a partial structure diagram of a centrifugal fan testing device according to an embodiment of the present application;

[0033] Figure 2 Figure 2 is a partial structure diagram of a centrifugal fan testing device according to an embodiment of the present application;

[0034] Figure 3 Figure 3 is a whole structure diagram of a centrifugal fan testing device according to an embodiment of the present application;

[0035] Figure 4 Figure 4 is a structure diagram of a first fixing member or a second fixing member according to an embodiment of the present application;

[0036] In the figure: 1, base; 2, turnover plate; 21, plate body; 211, channel; 212, mounting hole; 22, extension plate; 221, avoiding groove; 3, positioning plate; 31, first plate body; 32, second plate body; 4, limiting plate; 5, baffle; 6, reinforcing assembly; 61, first reinforcing member; 62, second reinforcing member; 7, center of gravity; 8, rotation; 91, first fixing member; 92, second fixing member; 100, mounting seat; 101, driving member; 102, handle; 103, transmission member; 104, nut; 105, connecting member; 106, bolt. DETAILED DESCRIPTION

[0037] In order to make the technical scheme of the present application clearer, the present application will be further described in detail in combination with the drawings and specific embodiments.

[0038] Embodiment 1

[0039] As Figure 1 Figure 4 The embodiment provides a testing device for a centrifugal fan, which comprises a base 1, a turnover plate 2 rotationally connected with the base 1, a positioning plate 3 comprising a first plate body 31 and a second plate body 32 connected with each other, the first plate body 31 being connected with the base 1, and the first plate body 31 and the second plate body 32 both being in contact with the turnover plate 2, a first fixing member 91 connected with the base 1 and the turnover plate 2, and a second fixing member 92 connected with the second plate body 32 and the turnover plate 2, wherein the gravity center 7 of the turnover plate 2 and the positioning plate 3 are respectively located on two sides of a rotation position 8 of the base 1 and the turnover plate 2.

[0040] Specifically, during testing, first, the turnover plate 2 and the first plate body 31 are in contact, so that the turnover plate 2 is placed in a horizontal position, and the first fixing member 91 is used to fix the base 1 and the turnover plate 2; then, the centrifugal fan is installed on the turnover plate 2 through fasteners; then, the turnover plate 2 and the centrifugal fan are rotated around the base 1 until the turnover plate 2 and the second plate body 32 are in contact, so that the turnover plate 2 and the centrifugal fan are both in a vertical position, and the second fixing member 92 is used to fix the second plate body 32 and the turnover plate 2; finally, the centrifugal fan is started to test related performances.

[0041] ​The base 1 is used to carry the turnover plate 2, the positioning plate 3 and the like, and can be a frame structure composed of multiple sections. The turnover plate 2 is used to carry the centrifugal fan, facilitating the rotation of the centrifugal fan with the turnover plate 2. Since the gravity center 7 of the turnover plate 2 and the positioning plate 3 are located on the two sides of the rotating position 8 of the base 1 and the turnover plate 2, for the convenience of understanding, the following definitions are made. The gravity center 7 of the turnover plate 2 is located on the left side of the rotating position 8 of the base 1 and the turnover plate 2, and the positioning plate 3 is located on the right side of the rotating position 8 of the base 1 and the turnover plate 2. When the turnover plate 2 is placed in a horizontal position, since the positioning plate 3 is located on the right side of the rotating position 8 of the base 1 and the turnover plate 2, it ensures that the turnover plate 2 and the centrifugal fan will not rotate to the left. Since the gravity center 7 of the turnover plate 2 is located on the left side of the rotating position 8 of the base 1 and the turnover plate 2, it ensures that the turnover plate 2 and the centrifugal fan will not rotate to the right. Since the first fixing member 91, the base 1 and the turnover plate 2 are connected, it ensures that the horizontal positioning and fixation of the turnover plate 2 are good, and thus the horizontal positioning and fixation of the centrifugal fan are good. When the turnover plate 2 is in a vertical position, since the second plate body 32 and the turnover plate 2 are in contact, it facilitates preventing the turnover plate 2 and the centrifugal fan from being excessively turned to the right. Since the second fixing member 92, the second plate body 32 and the turnover plate 2 are connected, it ensures that the vertical positioning and fixation of the turnover plate 2 are good, and thus the vertical positioning and fixation of the centrifugal fan are good, facilitating the simulation of the actual working state of the centrifugal fan and ensuring good test performance. The specific structure of the first fixing member 91 and the second fixing member 92 is not limited, and can be a threaded connection fixing member, a clamping fixing member or the like.

[0042] Further, as shown in Figure 1 Figure 2 The turnover plate 2 includes a plate body 21 rotationally connected with the base 1, the plate body 21 is provided with a passage 211 and a plurality of mounting holes 212, the plate body 21, the first plate body 31 and the second plate body 32 are in contact, the plate body 21, the first fixing member 91 and the second fixing member 92 are connected, and the gravity center 7 of the plate body 21 and the positioning plate 3 are located on the two sides of the rotating position 8 of the base 1 and the plate body 21. Specifically, the plate body 21 is used to carry the centrifugal fan; the passage 211 is used to accommodate related components of the centrifugal fan, preventing the plate body 21 and the centrifugal fan from interfering with each other; and the plurality of mounting holes 212 are used to correspondingly accommodate a plurality of fasteners, facilitating the fastening of the centrifugal fan on the plate body 21 by the plurality of fasteners. Appropriate mounting holes 212 can be selected according to different sizes of the centrifugal fan, facilitating the good universality of the plate body 21.

[0043] Further, as shown in Figure 1 Figure 2 ​​, the plate body 21 is integrally formed with an extension plate 22 at the periphery, the extension plate 22 is rotationally connected with the base 1, and the gravity center 7 of the plate body 21 and the positioning plate 3 are respectively located on the two sides of the rotation position 8 of the base 1 and the extension plate 22. Specifically, the extension plate 22 is used to increase the strength of the plate body 21, so that the plate body 21 is not easy to deform; the integrally formed and bent connection facilitates good integrity of the plate body 21 and the extension plate 22.

[0044] Further, as shown in Figure 1 - Figure 2 , it also comprises two limiting plates 4 respectively connected to the two ends of the turnover plate 2, the two limiting plates 4 are located on the side of the rotation position 8 of the base 1 and the turnover plate 2 close to the gravity center 7 of the turnover plate 2, and the two limiting plates 4 are in contact with the base 1. Specifically, when the turnover plate 2 is placed in a horizontal position, the two limiting plates 4 are used to further limit the left rotation of the turnover plate 2, and the two limiting plates 4 are preferably distributed in axial symmetry about the turnover plate 2, to ensure good symmetry of the stress on the two ends of the turnover plate 2.

[0045] Further, as shown in Figure 1 - Figure 2 , it also comprises a baffle 5 connected with the base 1, the baffle 5 is located on the side of the rotation position 8 of the base 1 and the turnover plate 2 close to the gravity center 7 of the turnover plate 2, and the baffle 5 is in contact with the turnover plate 2. Specifically, when the turnover plate 2 is placed in a horizontal position, the baffle 5 is used to further limit the left rotation of the turnover plate 2, and the baffle 5 is also used to increase the overall strength of the base 1.

[0046] Further, as shown in Figure 1 - Figure 2 , it also comprises a reinforcing assembly 6 connected with the base 1. Specifically, the reinforcing assembly 6 is used to increase the overall strength of the base 1.

[0047] Further, as shown in Figure 1 - Figure 2 , the reinforcing assembly 6 comprises a first reinforcing piece 61 and a second reinforcing piece 62 both connected with the base 1, one end of the first reinforcing piece 61 and one end of the second reinforcing piece 62 are respectively in contact with the two sides of the rotation position 8 of the base 1 and the turnover plate 2. Specifically, the first reinforcing piece 61 and the second reinforcing piece 62 are collectively used to increase the overall strength of the base 1, and in order to prevent deformation, the first reinforcing piece 61 and the second reinforcing piece 62 are preferably angle steels.

[0048] Further, as shown in Figure 1 - Figure 2 , the first reinforcing piece 61 and the second reinforcing piece 62 are configured as two sides of a triangle. Specifically, a profile corresponding to the first reinforcing piece 61, the second reinforcing piece 62 and the base 1 forms a triangle, which facilitates good reinforcing stability.

[0049] Further, as shown in Figure 3 -Figure 4 The first fixing member 91 and the second fixing member 92 have the same structure, and each comprises:

[0050] a mounting base 100 connected with the base 1 or the second plate body 32;

[0051] a driving member 101 hingedly connected with one end of the mounting base 100;

[0052] a handle 102 connected with the other end of the driving member 101;

[0053] a transmission member 103 hingedly connected with one end of the mounting base 100;

[0054] a nut 104 connected with the other end of the transmission member 103;

[0055] a connecting member 105 hingedly connected between the middle part of the driving member 101 and the middle part of the transmission member 103;

[0056] a bolt 106 threadedly sleeved in the nut 104, and abutting against the turnover plate 2.

[0057] Specifically, for the first fixing member 91, the turnover plate 2 is placed in a horizontal position, the mounting base 100 is connected with the base 1, and the bolt 106 abuts against the side of the turnover plate 2 away from the extension plate 22, and the number of the first fixing member 91 is preferably two; for the second fixing member 92, the turnover plate 2 is placed in a vertical position, the mounting base 100 is connected with the second plate body 32, and the bolt 106 abuts against the side of the turnover plate 2 close to the extension plate 22.

[0058] Further, as Figure 3 - Figure 4 the turnover plate 2 is provided with an avoiding groove 221, and the transmission member 103 is located in the avoiding groove 221.

[0059] Specifically, the avoiding groove 221 is used for accommodating the transmission member 103, so as to facilitate the transmission member 103 to drive the bolt 106 to move to the side of the turnover plate 2 close to the extension plate 22.

[0060] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A test device for a centrifugal fan, characterized by The utility model relates to a kind of rotating plate, including: Base (1); With the base (1) rotation connection overturning plate (2); Positioning plate (3), the positioning plate (3) includes first plate body (31) and second plate body (32) interconnected, the first plate body (31) is connected with the base (1), the first plate body (31) and the second plate body (32) are all in contact with the overturning plate (2); With the base (1) and the overturning plate (2) are connected first fixed part (91); With the second plate body (32) and the overturning plate (2) are connected second fixed part (92); Wherein, the overturning plate (2) gravity center (7) and the positioning plate (3) are located respectively at the rotation of the base (1) and the overturning plate (2) both sides of place (8).

2. The test device for a centrifugal fan according to claim 1, wherein The overturning plate (2) includes plate main body (21) with the base (1) rotation connection, the plate main body (21) is equipped with passageway (211) and several mounting holes (212), the plate main body (21) and the first plate body (31) and the second plate body (32) are all in contact, the plate main body (21) and the first fixed part (91) and the second fixed part (92) are all connected, the plate main body (21) gravity center (7) and the positioning plate (3) are located respectively at the rotation of the base (1) and the plate main body (21) both sides of place (8).

3. A test device for a centrifugal fan as defined in claim 2, wherein The plate main body (21) is integrally formed bending connection with extension plate (22) around, the extension plate (22) and the base (1) rotation connection, the plate main body (21) gravity center (7) and the positioning plate (3) are located respectively at the rotation of the base (1) and the extension plate (22) both sides of place (8).

4. A test device for a centrifugal fan according to any one of claims 1-3, characterized in that Still including two limit plates (4) connected respectively in the both ends of the overturning plate (2), the two limit plates (4) are all located at the rotation of the base (1) and the overturning plate (2) near the gravity center (7) of the overturning plate (2) one side, the two limit plates (4) are all in contact with the base (1).

5. A test device for a centrifugal fan according to any one of claims 1-3, characterized in that Still including baffle (5) connected with the base (1), the baffle (5) is located at the rotation of the base (1) and the overturning plate (2) near the gravity center (7) of the overturning plate (2) one side, the baffle (5) and the overturning plate (2) are in contact.

6. A test device for a centrifugal fan as claimed in any one of claims 1 to 3, characterised in that, Still including reinforcing assembly (6) connected with the base (1).

7. A test device for a centrifugal fan as defined in claim 6, wherein The reinforcing assembly (6) includes first reinforcing part (61) and second reinforcing part (62) all connected with the base (1), one end of the first reinforcing part (61) and one end of the second reinforcing part (62) are respectively in contact with the base (1) and the overturning plate (2) both sides of rotation place (8).

8. A test device for a centrifugal fan as defined in claim 7, wherein The first reinforcing part (61) and the second reinforcing part (62) are configured as two edges of triangle.

9. A test device for a centrifugal fan as claimed in any one of claims 1 to 3, characterised in that, The first fixed part (91) and the second fixed part (92) are same in structure, and all include: Mounting seat (100) connected with the base (1) or the second plate body (32); A driving member (101), one end of which is hinged to the mounting base (100); A handle (102) connected to the other end of the driving member (101); A transmission member (103), one end of which is hinged to the mounting base (100); A nut (104) connected to the other end of the transmission member (103); A connecting member (105) hinged between the middle part of the driving member (101) and the middle part of the transmission member (103); A bolt threaded into the nut (104), which abuts against the turnover plate (2).

10. A test device for a centrifugal fan as defined in claim 9, wherein The turnover plate (2) is provided with an avoiding groove (221), and the transmission member (103) is located in the avoiding groove (221).

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