Axial-flow fan blade detection mechanism and dynamic balance detection device

Abstract

The utility model relates to the field of axial flow fan blade detection, in particular to a detection mechanism and a dynamic balance detection device of an axial flow fan blade, the detection mechanism comprises a base, a position adjusting part and a detection structure, the base is provided with a sliding part, the sliding part is in sliding connection with the base, and the sliding part is used for vertically sliding on the base; the position adjusting piece is connected with the base, and the position adjusting piece is connected with the sliding piece; the detection structure is connected with the sliding piece, and the detection structure can abut against blades of the axial flow fan blade; the height of the detection structure is adjusted through the sliding piece, so that the detection structure can abut against the axial-flow fan blades of different specifications, and the detection mechanism can be used for detecting the axial-flow fan blades of various types. The dynamic balance detection device comprises the detection structure and a dynamic balance detection table, the detection structure is installed on the dynamic balance detection table, the axial-flow fan blades with ultrahigh fan blade height can be screened out while dynamic balance detection is carried out on the axial-flow fan blades, the shipment quality of the axial-flow fan blades is guaranteed, and the labor intensity of personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the field of axial flow fan blade detection, in particular to a detection mechanism for axial flow fan blades and a dynamic balance detection device. Background Art

[0002] After the production of axial flow fan blades is completed, the axial flow fan blades need to be subjected to dynamic balance detection before shipment. The dynamic balance machine consists of a dynamic balance platform and a dynamic balance measurement electric box. The dynamic balance platform is used to fix the axial flow fan blade so that the axial flow fan blade rotates around its shaft hole, and the dynamic balance measurement electric box tests the balance point of the axial flow fan blade, and the dynamic balance of the axial flow fan blade meets the requirements by adding counterweights.

[0003] However, during the dynamic balance detection, the height of the blade is not detected, resulting in products with unqualified blade heights in the shipped axial flow fan blades. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency that the blade heights of some shipped axial flow fan blades are unqualified in the prior art, and to provide a detection mechanism for axial flow fan blades and a dynamic balance detection device.

[0005] In a first aspect, the utility model provides a detection mechanism for axial flow fan blades, including

[0006] a base, the base is provided with a sliding member, the sliding member is slidably connected to the base, and the sliding member can slide vertically on the base;

[0007] a position adjusting member, the position adjusting member is connected to the base, and the position adjusting member is connected to the sliding member;

[0008] a detection structure, the detection structure is connected to the sliding member, and the detection structure can abut against the blade of the axial flow fan blade.

[0009] In the detection mechanism for axial flow fan blades of the utility model, a sliding member is slidably arranged on the base. By vertically sliding the sliding member on the base, the height of the sliding member can be adjusted, so as to adjust the height of the detection structure, and the detection structure can detect the axial flow fan blade at an appropriate position; the position adjusting member controls the relative position of the sliding member and the base, so that the sliding member is maintained at a specified height, and the detection structure impacts the blade of the axial flow fan blade at the specified height; when the axial flow fan blade rotates, by observing the impact situation between the blade of the axial flow fan blade and the detection structure, the over-height situation of the blade of the axial flow fan blade can be quickly judged, and the unqualified products can be quickly selected to ensure the shipment quality; by adjusting the height of the detection structure, the detection mechanism can be used for detecting different types of axial flow fan blades.

[0010] Preferably, the base includes a top plate, a bottom plate, a first guide rod and a second guide rod. The first guide rod and the second guide rod are arranged at intervals, the first guide rod and the second guide rod are parallel, both ends of the first guide rod are respectively connected to the bottom plate and the top plate, and both ends of the second guide rod are respectively connected to the bottom plate and the top plate; the sliding member is slidably connected to the first guide rod, the sliding member is slidably connected to the second guide rod, and the position adjusting member is connected to the top plate.

[0011] A first guide rod and a second guide rod are arranged between the bottom plate and the top plate. The first guide rod and the second guide rod jointly guide the sliding member, ensuring smooth sliding of the sliding member while limiting the sliding member to prevent the sliding member from rotating, so that the detection structure can be stably fixed at a predetermined height; the bottom plate is used to fix the base; a position adjusting member is arranged on the top plate to facilitate adjusting the height position of the detection structure.

[0012] Preferably, the first guide rod penetrates through the sliding member, and the second guide rod penetrates through the sliding member.

[0013] The first guide rod and the second guide rod can better limit the sliding member, prevent the sliding member from rotating, and ensure the use stability of the sliding member.

[0014] Preferably, the position adjusting member includes a lead screw and a turntable. The turntable is connected to the lead screw, the turntable is rotatably connected to the top plate, the lead screw penetrates through the top plate, the lead screw penetrates through the sliding member, and the lead screw is threadedly connected to the sliding member.

[0015] The operator rotates the turntable, and the turntable drives the lead screw to rotate. Due to the threaded connection between the lead screw and the sliding member, the relative position between the lead screw and the sliding member can be adjusted, thereby adjusting the height of the sliding member; a handle is arranged on the turntable to facilitate the operation of the operator.

[0016] Preferably, the top plate is provided with a scale, and the scale is connected to the lead screw.

[0017] The scale can convert the rotational displacement of the lead screw into the height of the sliding member, so that the operator can more intuitively adjust the height of the detection structure.

[0018] Preferably, the detection structure includes a connecting rod and a detection block. The connecting rod penetrates through the sliding member, and the sliding member is provided with a first limiting member that can abut against the connecting rod; the detection block is connected to the end of the connecting rod away from the sliding member, and the detection block can abut against the blade of the axial flow fan.

[0019] The connecting rod is horizontally arranged. By setting the detection block at the end of the connecting rod, the detection block is kept away from the base, preventing interference between the axial-flow fan blade and the base during rotation. By adjusting the relative position between the connecting rod and the sliding member, the relative position between the detection block and the base can be controlled, ensuring that the detection block can detect the axial-flow fan blade at an appropriate horizontal position and improving the detection accuracy of the detection mechanism.

[0020] Preferably, the detection block is a bent structural member. The bent structural member has an arc-shaped bent surface, and the arc-shaped bent surface can abut against the blade of the axial-flow fan.

[0021] The arc-shaped bent surface can reduce the damage to the blade during impact, prevent the flying blade fragments from hurting the operator, and ensure the personal safety of the operator. In some embodiments, to prevent the blade from hitting other structures, the detection block is inclined so that the arc-shaped bent surface is at the highest point of the detection block.

[0022] Preferably, the sliding member is provided with a second limiting member, and the second limiting member can abut against the base.

[0023] By the second limiting member abutting against the base, the displacement of the sliding block is prevented, ensuring the use stability of the detection structure. The second limiting member is a bolt threadedly connected to the sliding member.

[0024] In a second aspect, the present invention provides a dynamic balance detection device for an axial-flow fan blade, including a dynamic balance detection table and the above-mentioned detection mechanism for an axial-flow fan blade, and the base is connected to the dynamic balance detection table.

[0025] For the dynamic balance detection device for an axial-flow fan blade of the present invention, the dynamic balance detection table can support the bearing fan blade to rotate, and the base is installed on the dynamic balance detection table. When the operator performs dynamic balance detection on the blade, by observing the impact situation between the blade of the axial-flow fan and the detection structure, unqualified products with the height of the fan blade exceeding the standard can be screened out during the dynamic balance detection of the axial-flow fan blade, thereby ensuring the shipping quality of the axial-flow fan blade.

[0026] Preferably, the base is provided with fixing screw holes, and fixing bolts are arranged in the fixing screw holes. The fixing bolts are threadedly connected to the dynamic balance detection table.

[0027] It is convenient for the installation and fixation of the detection mechanism and for the maintenance of the detection mechanism.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. A detection mechanism for an axial flow fan blade of the present utility model. A sliding member is slidably arranged on a base. By vertically sliding the sliding member on the base, the height of the sliding member can be adjusted, thereby adjusting the height of the detection structure, so that the detection structure can detect the axial flow fan blade at an appropriate position. A position adjusting member controls the relative position of the sliding member and the base, so that the sliding member is maintained at a specified height, and the detection structure impacts the blade of the axial flow fan at the specified height. When the axial flow fan blade rotates, by observing the impact situation between the blade of the axial flow fan and the detection structure, the over-height situation of the blade of the axial flow fan can be quickly judged, and unqualified products can be quickly selected to ensure the shipment quality. By adjusting the height of the detection structure, the detection mechanism can be used for detecting different types of axial flow fan blades.

[0030] 2. A dynamic balance detection device for an axial flow fan blade of the present utility model. The dynamic balance detection table can support the bearing fan blade to rotate, and the base is installed on the dynamic balance detection table. When an operator performs dynamic balance detection on the blade, by observing the impact situation between the blade of the axial flow fan and the detection structure, unqualified products with over-height blade height of the axial flow fan can be screened out during the dynamic balance detection of the axial flow fan, thereby ensuring the shipment quality of the axial flow fan blade. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of a detection mechanism for an axial flow fan blade of the present utility model;

[0032] Figure 2 is a schematic structural diagram of a detection mechanism for an axial flow fan blade of the present utility model;

[0033] Figure 3 is a schematic structural diagram of a detection block of the present utility model;

[0034] Figure 4 is a schematic structural diagram of a dynamic balance detection device for an axial flow fan blade of the present utility model.

[0035] Markings in the figure:

[0036] 1 - base, 11 - top plate, 12 - bottom plate, 13 - first guide rod, 14 - second guide rod, 2 - position adjusting member, 21 - lead screw, 22 - turntable, 23 - grip, 3 - detection structure, 31 - connecting rod, 32 - detection block, 33 - arc-shaped bending surface, 4 - sliding member, 5 - first limiting member, 6 - second limiting member, 7 - scale, 8 - dynamic balance detection table, 9 - fixing screw hole. Detailed Embodiment

[0037] The present utility model will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.

[0038] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product / device / device is normally used and placed. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0039] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present utility model.

[0040] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be construed as emphasizing or implying the relative importance of specific components.

[0041] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., or even more than 9.

[0042] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, where the terms "set", "installed", "connected", "linked", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, screw connection, etc. Such a connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0043] Embodiment 1

[0044] As Figures 1 - 3 shown, a detection mechanism for an axial flow fan blade includes

[0045] a base 1, the base 1 is provided with a sliding member 4, the sliding member 4 is slidably connected to the base 1, and the sliding member 4 can slide vertically on the base 1;

[0046] a position adjusting member 2, the position adjusting member 2 is connected to the base 1, and the position adjusting member 2 is connected to the sliding member 4;

[0047] a detection structure 3, the detection structure 3 is connected to the sliding member 4, and the detection structure 3 can abut against the blade of the axial flow fan blade.

[0048] A sliding member 4 is slidably arranged on the base 1. By vertically sliding the sliding member 4 on the base 1, the height of the sliding member 4 can be adjusted, thereby adjusting the height of the detection structure 3, so that the detection structure 3 detects the axial flow fan blade at an appropriate position; the position adjusting member 2 controls the relative position of the sliding member 4 and the base 1, so that the sliding member 4 maintains a specified height, and the detection structure 3 impacts the blade of the axial flow fan blade at a specified height; when the axial flow fan blade rotates, by observing the impact situation between the blade of the axial flow fan and the detection structure 3, the over-height situation of the blade of the axial flow fan can be quickly judged, and unqualified products can be quickly selected to ensure the shipping quality; by adjusting the height of the detection structure 3, the detection mechanism can be used for detecting different types of axial flow fan blades.

[0049] In one or several embodiments, the base 1 is composed of a top plate 11, a bottom plate 12, a first guide rod 13 and a second guide rod 14. The first guide rod 13 and the second guide rod 14 are arranged at intervals, so that the sliding member 4 is located between the first guide rod 13 and the second guide rod 14. The first guide rod 13 and the second guide rod 14 jointly limit the sliding member 4, making the detection structure 3 more firmly fixed, avoiding the shaking of the detection structure 3, ensuring the accuracy of the blade height detection of the axial flow fan. The first guide rod 13 and the second guide rod 14 are parallel to ensure that the sliding member 4 can slide smoothly on the first guide rod 13 and the second guide rod 14. The two ends of the first guide rod 13 are respectively connected to the bottom plate 12 and the top plate 11 for fixation, and the two ends of the second guide rod 14 are respectively connected to the bottom plate 12 and the top plate 11 for fixation, thereby fixing the relative positions of the first guide rod 13 and the second guide rod 14 and ensuring the stability of the sliding member 4; the sliding member 4 is slidably connected to the first guide rod 13, and the sliding member 4 is slidably connected to the second guide rod 14; the position adjusting member 2 is connected to the top plate 11, facilitating the operator to adjust the position of the sliding member 4 by operating the position adjusting member 2, thereby realizing the position adjustment of the detection structure 3.

[0050] In an alternative embodiment, by passing the first guide rod 13 through the sliding member 4 and passing the second guide rod 14 through the sliding member 4, the limiting effect of the first guide rod 13 and the second guide rod 14 on the sliding member 4 is strengthened, avoiding the rotation and offset of the sliding member 4, and ensuring the stability of the detection structure 3.

[0051] In an alternative embodiment, the position adjusting member 2 is composed of a lead screw 21 and a turntable 22. The lead screw 21 is coaxially connected to the turntable 22, so that the turntable 22 can drive the lead screw 21 to rotate when the turntable 22 rotates. By rotatably connecting the turntable 22 to the top plate 11, the turntable 22 can rotate smoothly on the top plate 11. By passing the lead screw 21 through the top plate 11, passing the lead screw 21 through the sliding member 4, and threadedly connecting the lead screw 21 to the sliding member 4, when the lead screw 21 rotates, the relative position between the sliding member 4 and the lead screw 21 can be changed, thereby controlling the distance between the sliding member 4 and the bottom plate 12 and realizing the height adjustment of the sliding member 4; a handle 23 is provided on the turntable 22, and the operator can quickly rotate the turntable 22 by holding the handle 23, realizing the quick adjustment of the position of the detection structure 3.

[0052] In an alternative embodiment, a scale 7 is provided on the top plate 11. By connecting the scale 7 to the lead screw 21 to record the rotational displacement of the lead screw 21, the height change of the sliding member 4 is converted and displayed on the scale 7, so that the operator can more intuitively observe the adjusted height of the sliding member 4 and can more quickly adjust the position of the sliding member 4.

[0053] In one or several embodiments, the detection structure 3 is composed of a connecting rod 31 and a detection block 32. The connecting rod 31 passes through the sliding member 4 horizontally. The sliding member 4 is provided with a first limiting member 5 which can abut against the connecting rod 31. By controlling the sliding of the connecting rod 31 on the sliding member 4, the distance between the detection block 32 and the base 1 can be adjusted, so that the detection structure 3 can be used for detecting axial flow fans of different specifications. The detection block 32 is connected to one end of the connecting rod 31 away from the sliding member 4. By abutting the detection block 32 against the blades of the axial flow fan, when the axial flow fan rotates, the blades hitting the axial flow fan can make a sound, so that the operator can quickly judge the blade height of the axial flow fan. The first limiting member 5 is a bolt. The detection block 32 is a bent piece, and the bent piece is inclined at the end of the connecting rod 31, so that part of the bent piece is embedded in the connecting rod 31, and the bent piece is fixed at the end of the connecting rod 31 by a bolt member.

[0054] In an alternative embodiment, the detection block 32 is a bent structural member with an arc-shaped bent surface 33, and the arc-shaped bent surface 33 can abut against the blades of the axial flow fan. By providing the arc-shaped bent surface 33, it is possible to prevent the axial flow fan from hitting the detection block 32 and causing damage, and to prevent debris from splashing, ensuring the safety of the operator. The inclined bent piece makes the arc-shaped bent surface 33 located at the highest point of the bent piece, so that the axial flow blade hits the arc-shaped bent surface 33.

[0055] In one or several embodiments, the sliding member 4 is provided with a second limiting member 6 which can abut against the base 1. By abutting the second limiting member 6 against the base 1, the position of the sliding member 4 and the base 1 is fixed, ensuring the use stability of the detection structure 3.

[0056] For a detection mechanism of an axial flow fan of the present utility model, a combination of a turntable 22 and a lead screw 21 is used as a position adjusting member 2. The detection block 32 and the connecting rod 31 are installed on the sliding member 4, and the sliding member 4 is installed on the base 1. By rotating the turntable 22, the height position of the sliding member 4 is adjusted by the rotation of the lead screw 21. The rotation of the lead screw 21 drives the sliding member 4 to move up and down on the base 1. According to the type and specification of the axial flow fan, the height of the sliding member 4 can be adjusted, and the distance between the detection block 32 and the base 1 can be adjusted through the connecting rod 31, so that the detection mechanism can be used for detecting axial flow fans of different types and specifications. A scale 7 is used to display the height of the sliding member 4. The detection mechanism of the present utility model can be used for height detection of various axial flow fans, ensuring the shipping quality of the axial flow fans.

[0057] Embodiment 2

[0058] As Figure 4As shown in the figure, a dynamic balance detection device for an axial flow fan blade includes a dynamic balance detection table 8 and a detection mechanism for an axial flow fan blade in Embodiment 1. The base 1 is connected to the dynamic balance detection table 8. A fixing screw hole 9 is provided in the base 1, and a fixing bolt is provided in the fixing screw hole 9. The base 1 is fixed on the balance detection table 8 by screwing the fixing bolt with the dynamic balance detection table 8.

[0059] The dynamic balance detection table 8 can support the bearing fan blade to rotate, and the base 1 is installed on the dynamic balance detection table 8. When the operator conducts dynamic balance detection on the blade, by observing the impact situation between the blade of the axial flow fan and the detection structure 3, unqualified products with the blade height being too high are screened out during the dynamic balance detection of the axial flow fan blade, thereby ensuring the shipping quality of the axial flow fan blade.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection mechanism for an axial-flow fan blade, characterized in that, including a base (1), the base (1) is provided with a sliding member (4), the sliding member (4) is slidably connected to the base (1), and the sliding member (4) can slide vertically on the base (1); a position adjusting member (2), the position adjusting member (2) is connected to the base (1), and the position adjusting member (2) is connected to the sliding member (4); a detection structure (3), the detection structure (3) is connected to the sliding member (4), and the detection structure (3) can abut against the blade of the axial flow fan.

2. The detection mechanism of an axial flow fan blade according to claim 1, characterized in that, The base (1) includes a top plate (11), a bottom plate (12), a first guide rod (13) and a second guide rod (14). The first guide rod (13) and the second guide rod (14) are arranged at intervals, the first guide rod (13) is parallel to the second guide rod (14), both ends of the first guide rod (13) are respectively connected to the bottom plate (12) and the top plate (11), and both ends of the second guide rod (14) are respectively connected to the bottom plate (12) and the top plate (11); the sliding member (4) is slidably connected to the first guide rod (13), and the sliding member (4) is slidably connected to the second guide rod (14); the position adjusting member (2) is connected to the top plate (11).

3. The detection mechanism of an axial flow fan blade according to claim 2, characterized in that, The first guide rod (13) penetrates through the sliding member (4), and the second guide rod (14) penetrates through the sliding member (4).

4. The detection mechanism of an axial flow fan blade according to claim 2, characterized in that, The position adjusting member (2) includes a lead screw (21) and a turntable (22). The turntable (22) is connected to the lead screw (21), the turntable (22) is rotatably connected to the top plate (11), the lead screw (21) penetrates through the top plate (11), the lead screw (21) penetrates through the sliding member (4), and the lead screw (21) is threadedly connected to the sliding member (4).

5. The detection mechanism of an axial flow fan blade according to claim 4, characterized in that The top plate (11) is provided with a scale (7), and the scale (7) is connected to the lead screw (21).

6. The detection mechanism of an axial flow fan blade according to claim 1, characterized in that The detection structure (3) includes a connecting rod (31) and a detection block (32). The connecting rod (31) penetrates through the sliding member (4), and the sliding member (4) is provided with a first limiting member (5), and the first limiting member (5) can abut against the connecting rod (31); the detection block (32) is connected to one end of the connecting rod (31) away from the sliding member (4), and the detection block (32) can abut against the blade of the axial flow fan.

7. The detecting mechanism of an axial flow fan blade according to claim 6, characterized in that, The detection block (32) is a bent structural member, and the bent structural member has an arc-shaped bent surface (33), and the arc-shaped bent surface (33) can abut against the blade of the axial flow fan.

8. A detection mechanism for an axial flow fan blade according to any one of claims 1-7, characterized in that, The sliding member (4) is provided with a second limiting member (6), and the second limiting member (6) can abut against the base (1).

9. A dynamic balance detection device for an axial flow fan blade, characterized in that, including a dynamic balance detection table (8) and a detection mechanism for an axial flow fan according to any one of claims 1-8, and the base (1) is connected to the dynamic balance detection table (8).

10. The dynamic balance detection device for an axial flow fan blade according to claim 9, characterized in that, The base (1) is provided with a fixing screw hole (9), and a fixing bolt is arranged in the fixing screw hole (9), and the fixing bolt is threadedly connected to the dynamic balance detection table (8).

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