Rotating abnormal sound detection device for rotating structure
By designing a rotating sound detection device for rotating structures, the clamping fixing mechanism and the rotating mechanism drive the plate group to rotate, combined with the sound pressure collector, the problem of stability detection of the hinge structure of the folding screen mobile phone is solved, and the accurate collection of strange sounds is achieved and Judgment improves product quality and user experience.
Patent Information
- Application Number
- CN202420910777.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The prior art is difficult to effectively detect and ensure the stability of the hinge structure of the folding screen mobile phone shaft, resulting in poor user experience or equipment damage.
A rotating structure rotational abnormal sound detection device is designed, including a working platform, a clamping fixing mechanism, a rotating mechanism and a sound pressure collector. The product components are clamped by a clamping fixing mechanism, and the rotating mechanism drives the plate group to rotate, and the sound pressure collector Collect strange sounds in real time to judge the qualification of the rotation structure.
It realizes accurate collection and judgment of strange sounds during the folding and unfolding of the rotating structure, ensures the quality and user experience of the factory products, reduces axial interference in the rotation, and improves the accuracy and consistency of detection.
Smart Images
Figure CN222144308U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotating connection structure detection equipment, in particular to a rotating structure rotation abnormal sound detection device. Background Art
[0002] The demand for foldable screen mobile phones is growing, and the necessary hinge and hinge structures are constantly being updated. Major manufacturers are also paying more and more attention to the assembly process of their rotating structures. The hinge and hinge are important components of foldable screen mobile phones, and their stability determines the service life of the phone. Unqualified hinge and hinge will affect the user experience and may even cause abnormal damage to the phone and make it unusable.
[0003] In order to effectively ensure the folding experience and usage effect of foldable screen mobile phones, the hinge and hinge connection structure need to be tested during design and production. For example, after the connection structure is assembled, the noise value during the folding and unfolding process needs to be tested to determine whether it meets the design and factory standards. Utility Model Content
[0004] In order to solve the above problems, the present application provides a rotating structure abnormal sound detection device with a rational structure, so as to realize the collection of abnormal sounds during the folding and unfolding process of the rotating structure, and to judge whether it is qualified or not, thereby effectively ensuring the quality of the products leaving the factory and improving and ensuring the user experience.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A rotating structure rotation abnormal sound detection device comprises a working platform, on which a clamping and fixing mechanism is installed, and a plate group 2 in a product component is clamped by the clamping and fixing mechanism; a rotating mechanism is installed on the working platform, and the rotating mechanism drives the plate group 1 in the product component to rotate; the edges where the plate groups 1 and 2 are connected form a rotation connection via the rotating structure; and a sound pressure collector is also installed on the working platform.
[0007] As a further improvement of the above technical solution:
[0008] The rotating axis of the rotating structure is arranged vertically, and the rotating mechanism applies a horizontal force to the plate group 1.
[0009] The structure of the clamping and fixing mechanism is as follows: it includes a support plate, a back plate is installed at the end of the support plate, a fixed clamp block is installed at the lower part of the side of the back plate, and a movable clamp block is installed on the side of the back plate above the fixed clamp block; V-shaped blocks extend towards each other on the sides of the fixed clamp block and the movable clamp block, and V-shaped grooves matched with the V-shaped blocks are opened on the two edges of the plate group; the movable clamp block is driven by a linear drive member to move closer to or away from the fixed clamp block; a cone pin is formed by extending outwards on the side of the back plate between the fixed clamp block and the movable clamp block.
[0010] It also includes a centering pin, which is located on the same vertical line as the rotation axis in the rotating mechanism and the rotation axis of the product component.
[0011] The rotating mechanism includes a vertically arranged extension arm, and clamping blocks are symmetrically installed on the front and rear top ends of the extension arm, and the two clamping blocks are arranged at the front and rear sides of a vertical edge of the plate group; the rotating mechanism drives the two clamping blocks to rotate with the axis of the centering needle as the center through the rotational power, and one of the clamping blocks contacts and applies force to a side surface of the plate group.
[0012] A through groove is provided on the second plate group, the groove corresponds to the clamping block, and the size of the groove is larger than the size of the clamping block.
[0013] A rotating member is rotatably mounted on the end of each clamping block, and the circumferential surface of the rotating member applies force to the first plate group.
[0014] The structure of the rotating mechanism is as follows: it includes a rotating shaft that passes through the working platform from top to bottom, the bottom end of the rotating shaft is connected to the rotating power output end through a synchronous belt transmission assembly, a rotating plate is fixedly mounted on the upper end of the rotating shaft, and an extension arm is installed at the end of the rotating plate away from the rotating shaft; a centering pin is installed axially upward at the top end of the rotating shaft.
[0015] A support seat is installed in the middle of the top surface of the working platform via a support column, a power seat is installed in the middle of the bottom surface of the working platform via a support column, and the rotating power is installed on the power seat; a through hole for the rotating shaft to pass upward is opened on the working platform, and a bearing is installed between the rotating shaft and the support seat.
[0016] It also includes a horizontal adjustment mechanism, and a clamping and fixing mechanism is installed on the moving end of the horizontal adjustment mechanism.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model has a compact and reasonable structure and is easy to operate. During testing, the product component is clamped on the clamping and fixing mechanism, and the rotating mechanism drives the two plate groups in the product component to rotate relative to each other. At the same time, the sound pressure collector collects the sound pressure in real time, so as to realize the collection of abnormal sounds during the folding and unfolding of the rotating structure, and can judge whether it is qualified or not, which effectively guarantees the quality of the products leaving the factory and improves and guarantees the user experience.
[0019] The utility model also has the following advantages:
[0020] During testing, keeping the rotation axis in the product assembly vertically arranged is conducive to ensuring the consistency of force and action during repeated folding, and avoiding interference with the rotation caused by factors such as the gravity of plate group 1 and plate group 2 when the rotation axis is in other directions;
[0021] The rotating shaft is installed in an upward and isolated manner relative to the working platform through the support base, and the rotating power is installed in an upward and isolated manner relative to the working platform through the power base, which effectively reduces or even avoids the mutual interference and influence between the rotating power, the transmission components, and the rotating shaft and the working platform during power transmission, so that the sound pressure collector on the working platform is not disturbed during collection, effectively ensuring the accuracy of the collection;
[0022] The clamping and fixing mechanism is arranged on the horizontal adjustment mechanism. After the product component is mounted on the clamping and fixing mechanism, the horizontal adjustment mechanism can be adjusted so that the rotation axis of the product component is located directly above the centering pin, thereby ensuring that the rotation axis of the product component is consistent with the rotation axis of the rotating mechanism, thereby effectively ensuring the rotational push of the rotating mechanism on the plate group one, and effectively reducing or even avoiding additional sound interference during the rotation push process, which is particularly suitable for ensuring consistency, reliability and stability in repeated tests. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of the utility model.
[0024] Figure 2 It is a structural schematic diagram of the clamping and fixing mechanism of the utility model.
[0025] Figure 3 It is a structural schematic diagram of the horizontal adjustment mechanism of the utility model.
[0026] Figure 4 It is a structural schematic diagram of the rotating mechanism of the utility model.
[0027] Figure 5 It is a schematic diagram of the configuration between the clamping block and the plate group 1 of the utility model.
[0028] Figure 6 This is a schematic diagram of the installation of the sound pressure collector of the utility model on a work platform.
[0029] Among them: 1. Support column; 2. Working platform; 3. Support seat; 4. Centering needle; 5. Product components; 6. Clamping and fixing mechanism; 7. Rotating mechanism; 8. Sound pressure collector; 9. Level adjustment mechanism;
[0030] 51, plate set 1; 52, plate set 2; 521, groove;
[0031] 61. Support plate; 62. Back plate; 63. Fixed clamp block; 64. V-shaped block; 65. Movable clamp block; 66. Linear drive member; 67. Cone pin;
[0032] 71. Rotational power; 72. Power seat; 73. Pillar; 74. Rotational shaft; 75. Rotational plate; 76. Extension arm; 77. Clamping block; 78. Rotational member;
[0033] 81. column; 82. clamping block; 83. locking plate;
[0034] 90. Support; 91. Fixed seat; 92. Moving seat 1; 93. Moving seat 2; 94. X-axis adjustment assembly; 95. Y-axis adjustment assembly. DETAILED DESCRIPTION
[0035] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.
[0036] like Figure 1 As shown, a rotating structure rotation abnormal sound detection device of the present embodiment includes a working platform 2, on which a clamping and fixing mechanism 6 is installed, and the clamping and fixing mechanism 6 clamps the plate group 2 52 in the product component 5; a rotating mechanism 7 is installed on the working platform 2, and the rotating mechanism 7 drives the plate group 1 51 in the product component 5 to rotate; the edges where the plate group 1 51 and the plate group 2 52 are connected are rotationally connected via the rotating structure; and a sound pressure collector 8 is also installed on the working platform 2.
[0037] During the inspection, the product component 5 is clamped on the clamping and fixing mechanism 6, and the rotating mechanism 7 drives the two plate groups in the product component 5 to rotate relative to each other. At the same time, the sound pressure collector 8 collects the sound pressure in real time to realize the collection of abnormal sounds during the folding and unfolding process of the rotating structure.
[0038] The rotating axis of the rotating structure is arranged vertically, and the rotating mechanism 7 applies a horizontal force to the plate group 1 51 .
[0039] In this embodiment, during testing, the rotation axis in the product component 5 is kept vertically arranged, which is beneficial to ensuring the consistency of force and action during repeated folding, and avoiding interference with the rotation caused by factors such as the gravity of plate group 1 51 and plate group 2 52 themselves when the rotation axis is in other directions.
[0040] like Figure 2 As shown, the structure of the clamping and fixing mechanism 6 is as follows: it includes a support plate 61, a back plate 62 is installed at the end of the support plate 61, a fixed clamping block 63 is installed at the lower part of the side of the back plate 62, and a movable clamping block 65 is installed on the side of the back plate 62 above the fixed clamping block 63; V-shaped blocks 64 extend towards the sides of the fixed clamping block 63 and the movable clamping block 65, and a V-shaped groove matched with the V-shaped block 64 is opened at the edge of the second plate group 52 to effectively ensure the reliable clamping of the second plate group 52 on the back plate 62, and the movable clamping block 65 is driven by the linear drive member 66 to move closer to or away from the fixed clamping block 63; a cone pin 67 is extended outwardly on the side of the back plate 62 located between the fixed clamping block 63 and the movable clamping block 65, and the cone pin 67 cooperates with the hole on the second plate group 52 to realize the pre-positioning of the second plate group 52 on the back plate 62, which is convenient for the upper and lower movable clamping blocks 65 and the fixed clamping block 63 to clamp the second plate group 52.
[0041] In this embodiment, when in use, the plate group 2 52 is unfolded relative to the plate group 1 51, and the plate group 2 52 is pre-positioned on the back plate 62 through the cooperation and fit of the hole and the cone pin 67. At this time, the bottom edge of the plate group 2 52 is fitted with the lower fixed clamp block 63, and the linear drive member 66 is actuated to push the movable clamp block 65 downward until the downward V-block 64 is pressed down, fitted, and clamped in the V-groove on the upper edge of the plate group 2 52, thereby completing the clamping of the product component 5 by the clamping and fixing mechanism 6.
[0042] In this embodiment, the linear drive component 66 is an existing standard product, and may be a power component such as a cylinder or an oil cylinder, or may be a manually driven linear power component.
[0043] It also includes a centering needle 4, which is located on the same vertical line as the rotation axis of the rotating mechanism 7 and the rotation axis of the product component 5.
[0044] In this embodiment, through the setting of the centering pin 4, the axial position of the rotation of the product component 5 clamped on the clamping and fixing mechanism 6 can be intuitively and conveniently judged, so that the rotation axis of the product component 5 and the rotation axis of the rotating mechanism 7 are located on the same vertical line, so as to help ensure the reliability and stability of the rotation force applied by the rotating mechanism 7 to the plate group 51.
[0045] like Figure 4 As shown, the rotating mechanism 7 includes a vertically arranged extension arm 76, and clamping blocks 77 are symmetrically installed on the front and rear ends of the top of the extension arm 76. The two clamping blocks 77 are respectively arranged on the front and rear sides of the vertical edge of the plate group 51; the rotating mechanism 7 drives the two clamping blocks 77 to rotate with the axial direction of the centering needle 4 as the center through the rotating power 71, and one of the clamping blocks 77 contacts and applies force to the side of the plate group 51.
[0046] In actual operation, the rotation axis of the product assembly 5 clamped on the clamping and fixing mechanism 6 is evaluated and judged by the centering needle 4, and the two clamping blocks 77 rotate axially with the centering needle 4 as the axis, thereby effectively ensuring the reliability and consistency of the contact force applied by the clamping blocks 77 to the plate group 51.
[0047] In this embodiment, the spacing distance between the two clamping blocks 77 is slightly greater than the thickness of the plate set 51, which facilitates placing the plate set 51 between the two clamping blocks 77 before clamping.
[0048] In this embodiment, two clamping blocks 77 located on both sides of the plate group 51 in the thickness direction are used to apply force to the plate group 51 to rotate it, which not only ensures the reliability and stability of the rotation and can rotate at a preset speed, but also can realize the repeated rotation of the plate group 51.
[0049] The second plate group 52 is provided with a through groove 521 , which corresponds to the clamping block 77 , and the size of the groove 521 is larger than the size of the clamping block 77 .
[0050] In this embodiment, by setting the groove 521 on the plate group 2 52, the groove 521 forms a position avoidance for the clamping block 77, so that under the action of the clamping block 77, it can be achieved and ensured that the plate group 1 51 can be rotated to fit with the plate group 2 52, that is, to the 0° position in the folded state, which helps to realize rotation detection within 0°-180° or even a larger angle.
[0051] like Figure 5 As shown, a rotating member 78 is rotatably installed at the end of each clamping block 77, and the circumferential surface of the rotating member 78 is directed to apply force to the plate group 51, thereby converting the contact between the clamping block 77 and the surface of the plate group 51 into a rolling form, and ensuring reliable force application while reducing the force application area, effectively ensuring the smoothness of the force application to the plate group 51 through the clamping block 77.
[0052] The structure of the rotating mechanism 7 is as follows: it includes a rotating shaft 74 that passes through the working platform 2 from top to bottom, the bottom end of the rotating shaft 74 is connected to the output end of the rotating power 71 via a synchronous belt transmission assembly, a rotating plate 75 is fixedly mounted on the upper end of the rotating shaft 74, and an extension arm 76 is installed at the end of the rotating plate 75 away from the rotating shaft 74; a centering needle 4 is installed axially upward at the top end of the rotating shaft 74.
[0053] During the test, the rotating power 71 works, and the rotating shaft 74 is driven to rotate through the synchronous belt transmission assembly. The rotating shaft 74 drives the rotating plate 75, the extension arm 76, and the clamping block 77 to rotate synchronously, so that the clamping block 77 applies force to the plate group 51, driving the plate group 51 to rotate at a preset speed at the same time, thereby realizing the switching of the folding and unfolding states of the product component 5.
[0054] In this embodiment, the centering pin 4 is arranged at the axial position of the rotating shaft 74. The correspondence between the centering pin 4 and the rotating axis of the product component 5 can ensure that the rotating axis of the product component 5 is consistent with the rotating axis of the rotating shaft 74, thereby effectively ensuring that the clamping block 77 applies stable force to the plate group 1 51 during the test.
[0055] A support seat 3 is installed overhead in the middle of the top surface of the working platform 2 via a support column 1, a power seat 72 is installed in the middle of the bottom surface of the working platform 2 via a support column 73, and a rotating power 71 is installed on the power seat 72; a through hole is opened on the working platform 2 for the rotating shaft 74 to pass upward, and a bearing is installed between the rotating shaft 74 and the support seat 3.
[0056] In this embodiment, the rotating shaft 74 is installed in an upward overhead isolation relative to the working platform 2 via the support base 3, and the rotating power 71 is installed in a downward overhead isolation relative to the working platform 2 via the power base 72, which effectively reduces or even avoids the mutual interference and influence between the rotating power 71 and the working platform 2 during power transmission through the transmission component and the rotating shaft 74, so that the sound pressure collector 8 on the working platform 2 is not disturbed during collection, and the accuracy of the collection is effectively guaranteed.
[0057] It also includes a horizontal adjustment mechanism 9, and the movable end of the horizontal adjustment mechanism 9 is installed with a clamping and fixing mechanism 6.
[0058] In this embodiment, the clamping and fixing mechanism 6 is arranged on the horizontal adjustment mechanism 9. After the product component 5 is mounted on the clamping and fixing mechanism 6, the horizontal adjustment mechanism 9 can be adjusted so that the rotation axis of the product component 5 is located directly above the centering pin 4, thereby ensuring that the rotation axis of the product component 5 is consistent with the rotation axis of the rotating mechanism 7, thereby effectively ensuring the rotation of the plate group 51 by the rotating mechanism 7, and effectively reducing or even avoiding additional sound interference during the rotation and pushing process, which is particularly suitable for ensuring consistency, reliability and stability in repeated tests.
[0059] The horizontal adjustment mechanism 9 in this embodiment may adopt existing standard parts, such as a bidirectional slide, etc., or may adopt other mechanisms and components that can achieve position adjustment in the horizontal direction.
[0060] exist Figure 3 In the illustrated embodiment, the structure of the horizontal adjustment mechanism 9 is as follows: it includes a fixed seat 91 installed on the working platform 2 via a support 90, a movable seat 1 92 is slidably mounted on the top surface of the fixed seat 91 along the X direction, and a movable seat 2 93 is slidably mounted on the top surface of the movable seat 1 92 along the Y direction, and also includes an X-direction adjustment component 94 for driving the movable seat 1 92 to move relative to the fixed seat 91 along the X direction, and a Y-direction adjustment component 95 for driving the movable seat 2 93 to move relative to the movable seat 1 92 along the Y direction; through the actions of the X-direction adjustment component 94 and the Y-direction adjustment component 95, the movable seat 2 93 is driven to move and adjust relative to the working platform 2 in the X direction or the Y direction. The X-direction adjustment component 94 can be a push rod or screw rod structure threadedly mounted on the support block on the fixed seat 91, and the Y-direction adjustment component 95 can be a push rod or screw rod structure threadedly mounted on the support block on the movable seat 1 92.
[0061] like Figure 6As shown, a column 81 is vertically installed on the work platform 2, a clamp block 82 is fixedly mounted on the column 81, a locking plate 83 is installed on the end face of the clamp block 82, and the locking plate 83 is fixedly installed to install the sound pressure collector 8, so as to realize the installation of the sound pressure collector 8, and the installation height of the sound pressure collector 8 can be adjusted by the height of the clamp block 82 relative to the column 81, so that the sound pressure collector 8 is located at a suitable position relative to the rotation axis of the product component 5.
[0062] The usage of the utility model is:
[0063] The plate group 1 51 and the plate group 2 52 in the product component 5 are unfolded mutually, the edge of the plate group 1 51 is located between the two clamping blocks 77, the plate group 2 52 is pre-positioned by fitting through the hole and the cone pin 67, the linear drive member 66 is driven to push the movable clamping block 65 downward, and the movable clamping block 65 is combined with the fixed clamping block 63 to clamp and fix the plate group 2 52 on the back plate 62; the horizontal adjustment mechanism 9 is activated to adjust the product component 5 in the horizontal direction so that the rotation axis of the product component 5 is located directly above the centering needle 4; the rotating mechanism 7 works, and the rotating plate 75, the extension arm 76, and the clamping block 77 are driven to rotate synchronously through the rotating shaft 74, so that the plate group 1 51 is driven to rotate by the clamping blocks 77 on both sides, so that the plate group 1 51 can be folded or unfolded within a preset angle relative to the plate group 2 52, such as relative rotation within 0-180°, and can be repeatedly folded a preset number of times according to actual needs; during the folding process, the sound pressure generated by the folding is collected by the sound pressure collector 8 to realize the abnormal sound detection of the folding.
[0064] In actual use, the abnormal sound detection device in this embodiment can be placed in an external isolation box to reduce or even avoid external interference, so that the detection result is accurate.
[0065] The utility model has an ingenious concept and is easy to operate. It realizes the collection of abnormal sounds during the folding and unfolding of the rotating structure and can make a qualified or unqualified judgment, effectively ensuring the quality of factory products and improving and ensuring the user experience.
[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0067] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.
Claims
1. A rotating structure rotation abnormal sound detection device, comprising a working platform (2), characterized in that: The working platform (2) is provided with a clamping and fixing mechanism (6), which clamps the second plate group (52) in the product assembly (5); the working platform (2) is provided with a rotating mechanism (7), which drives the first plate group (51) in the product assembly (5) to rotate; the edges where the first plate group (51) and the second plate group (52) meet are connected to each other via the rotating structure; and the working platform (2) is also provided with a sound pressure collector (8).
2. A rotating structure rotation abnormal sound detection device as claimed in claim 1, characterized in that: The rotating axis of the rotating structure is arranged vertically, and the rotating mechanism (7) applies a horizontal force to the plate group 1 (51).
3. A rotating structure rotation abnormal sound detection device as claimed in claim 1, characterized in that: The structure of the clamping and fixing mechanism (6) is as follows: it comprises a support plate (61), a back plate (62) is installed at the end of the support plate (61), a fixed clamping block (63) is installed at the lower part of the side of the back plate (62), and a movable clamping block (65) is installed on the side of the back plate (62) above the fixed clamping block (63); V-shaped blocks (64) extend towards each other on the sides of the fixed clamping block (63) and the movable clamping block (65), and a V-shaped groove matched with the V-shaped block (64) is provided on the edge of the second plate group (52); the movable clamping block (65) is driven by a linear driving member (66) to move closer to or farther from the fixed clamping block (63); and a cone pin (67) is formed on the side of the back plate (62) between the fixed clamping block (63) and the movable clamping block (65) and extends outward.
4. A rotating structure rotation abnormal sound detection device as claimed in claim 1, characterized in that: It also includes a centering needle (4), which is located on the same vertical line as the rotation axis in the rotating mechanism (7) and the rotation axis of the product component (5).
5. A rotating structure rotation abnormal sound detection device as claimed in claim 4, characterized in that: The rotating mechanism (7) comprises an extension arm (76) arranged vertically, and a clamping block (77) is symmetrically installed at the top of the extension arm (76), and the two clamping blocks (77) are arranged at the front and rear sides of the vertical edge of the plate group (51); the rotating mechanism (7) drives the two clamping blocks (77) to rotate with the axial direction of the centering needle (4) as the center through the rotating power (71), and one of the clamping blocks (77) contacts and applies force to the side surface of the plate group (51).
6. A rotating structure rotation abnormal sound detection device as claimed in claim 5, characterized in that: The second plate group (52) is provided with a through groove (521), the groove (521) corresponds to the clamping block (77), and the size of the groove (521) is larger than the size of the clamping block (77).
7. A rotating structure rotation abnormal sound detection device as claimed in claim 5, characterized in that: A rotating member (78) is rotatably mounted on the end of each clamping block (77), and the circumferential surface of the rotating member (78) applies force to the plate group 1 (51).
8. A rotating structure rotation abnormal sound detection device as claimed in claim 5, characterized in that: The structure of the rotating mechanism (7) is as follows: it comprises a rotating shaft (74) which passes through the working platform (2) from top to bottom, the bottom end of the rotating shaft (74) is connected to the output end of the rotating power (71) via a synchronous belt transmission assembly, the upper end of the rotating shaft (74) is fixedly sleeved with a rotating plate (75), and the end of the rotating plate (75) away from the rotating shaft (74) is installed with an extension arm (76); the top end of the rotating shaft (74) is axially upwardly installed with a centering needle (4).
9. A rotating structure rotation abnormal sound detection device as claimed in claim 8, characterized in that: A support seat (3) is installed in the middle of the top surface of the working platform (2) via a support column (1), a power seat (72) is installed in the middle of the bottom surface of the working platform (2) via a support column (73), and a rotating power (71) is installed on the power seat (72); a through hole for a rotating shaft (74) to pass upward is opened on the working platform (2), and a bearing is installed between the rotating shaft (74) and the support seat (3).
10. The device for detecting abnormal rotational noise of a rotating structure according to claim 1, characterized in that: It also includes a horizontal adjustment mechanism (9), and the movable end of the horizontal adjustment mechanism (9) is installed with a clamping and fixing mechanism (6).