Abnormal sound detection device for shock absorber

Abstract

The utility model discloses a shock absorber abnormal sound detection device, and relates to the technical field of shock absorber detection. The shock absorber abnormal sound detection device comprises a mounting frame and a pressurizing device arranged above the mounting frame, the mounting frame is provided with a containing cavity for containing a shock absorber, a mounting base for mounting the shock absorber is arranged at the bottom of the containing cavity, the mounting base and the pressurizing device are connected with the two ends of the shock absorber respectively, and the pressurizing device moves downwards to apply pressure to the shock absorber. The device can simulate the compression amount of the shock absorber in the use process, and verifies whether abnormal sound exists in the compression process of the shock absorber.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of shock absorber detection, in particular to a shock absorber abnormal sound detection device. BACKGROUND

[0002] As a key component for ensuring the smooth operation of various mechanical systems, improving the durability of equipment and optimizing the user experience, the performance of the shock absorber is crucial for accurate detection. At present, the detection of the core indicators such as the durability of the shock absorber mainly relies on two mature simulation techniques, namely vertical vibration and drum vibration. By using professional equipment to create a specific vibration environment, the buffering motion stress that the shock absorber bears in the actual working condition is restored, so as to effectively evaluate its durability and ensure product quality.

[0003] However, with the development of technology and the increasing refinement of detection requirements, the existing detection methods have many drawbacks. On the one hand, whether it is vertical vibration or drum vibration, the professional equipment used in the operation process will produce a lot of noise. This not only interferes with the acoustic environment of the detection site, but more importantly, the strong background noise covers up the abnormal sound that may occur during the operation of the shock absorber, making it difficult to diagnose early subtle faults of the shock absorber and greatly increasing the risk of potential quality problems not being detected in time. CONTENT OF THE INVENTION

[0004] The purpose of the application is to provide a shock absorber abnormal sound detection device that can simulate the compression amount during the use of the shock absorber and verify whether there is abnormal sound during the compression process of the shock absorber.

[0005] The embodiments of the application are implemented as follows:

[0006] The shock absorber abnormal sound detection device provided by the embodiments of the application comprises a mounting frame and a pressing device arranged above the mounting frame. The mounting frame has a receiving chamber for accommodating the shock absorber. The bottom of the receiving chamber is provided with a mounting seat for mounting the shock absorber. The mounting seat and the pressing device are respectively connected to the two ends of the shock absorber. The pressing device is used to apply pressure to the shock absorber by moving downward.

[0007] Optionally, as an implementable manner, the pressing device comprises a sleeve rod arranged vertically above the mounting frame, a pressing rod arranged in the sleeve rod, and a pressing handle rotationally connected to the sleeve rod. The pressing rod and the pressing handle are rotationally connected through a connecting rod. The pressing handle is rotated relative to the sleeve rod to drive the pressing rod to move linearly through the connecting rod. One end of the pressing rod towards the mounting seat is used to connect with the shock absorber.

[0008] Optionally, as an implementable mode, the pressurizing handle comprises a handle section and a connecting section connected vertically, the connecting section is rotatably connected with the sleeve rod at one end close to the handle section, and the connecting section is rotatably connected with the connecting rod at an end away from the handle section.

[0009] Optionally, as an implementable mode, the length of the handle section is longer than the length of the connecting section.

[0010] Optionally, as an implementable mode, when the connecting section is parallel to the sleeve rod, the shock absorber is in an extreme compression state, and when the connecting section is perpendicular to the sleeve rod, the shock absorber is in an uncompressed state.

[0011] Optionally, as an implementable mode, one end of the press rod close to the mounting base is provided with a connecting base, and the press rod is connected with the shock absorber through the connecting base.

[0012] Optionally, as an implementable mode, the mounting base is provided with a first through hole, and the mounting base and the shock absorber are connected through the first through hole and a lower mounting hole of the shock absorber by a bolt.

[0013] Optionally, as an implementable mode, the connecting base is provided with a second through hole, and the connecting base and the shock absorber are connected through the second through hole and an upper mounting hole of the shock absorber by a bolt.

[0014] Optionally, as an implementable mode, the mounting base comprises a first mounting plate and a second mounting plate arranged oppositely, and the first mounting plate and the second mounting plate are used for clamping the shock absorber.

[0015] Optionally, as an implementable mode, the connecting base comprises a first connecting plate and a second connecting plate arranged oppositely, and the first connecting plate and the second connecting plate are used for clamping the shock absorber.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The shock absorber abnormal sound detection device provided by the application comprises a mounting frame and a pressing device arranged above the mounting frame. The mounting frame has a containing chamber for accommodating the shock absorber. The bottom of the containing chamber is provided with a mounting seat for mounting the shock absorber. The mounting seat and the pressing device are respectively connected with two ends of the shock absorber. The shock absorber is pressed by the downward movement of the pressing device. The problem that the abnormal sound of the shock absorber is covered by the noise of the equipment in the traditional detection method is effectively solved. The subtle abnormal sound generated by the shock absorber under pressure can be accurately captured. Early diagnosis of subtle faults of the shock absorber is realized. The risk that potential quality problems are not detected in time is greatly reduced. The accuracy of product quality control is improved. Compared with the traditional vertical vibration and rotating drum vibration equipment, the noise of the device is extremely small when it is running. The acoustic environment of the detection site is not disturbed. It is beneficial for the detection personnel to focus on the sound characteristic analysis of the shock absorber. The accuracy and reliability of the detection are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 One of the structural schematic diagrams of the shock absorber abnormal sound detection device provided by the embodiments of the application;

[0020] Figure 2 The second structural schematic diagram of the shock absorber abnormal sound detection device provided by the embodiments of the application;

[0021] Figure 3 The structural schematic diagram of the pressing device in the shock absorber abnormal sound detection device provided by the embodiments of the application.

[0022] Icon: 100 - shock absorber abnormal sound detection device; 110 - mounting frame; 120 - pressing device; 121 - sleeve rod; 122 - pressing rod; 123 - pressing handle; 1231 - handle section; 1232 - connecting section; 124 - connecting rod; 130 - mounting seat; 131 - first perforation; 140 - connecting seat; 141 - second perforation; 200 - shock absorber. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the application more clear, the technical solutions in the embodiments of the application will be described clearly and completely in the following with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some embodiments of the application, not all embodiments. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor, fall within the scope of protection of the present application.

[0025] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figure 1 , Figure 2 and Figure 3 , the present embodiment provides a shock absorber abnormal sound detection device 100, including a mounting bracket 110 and a pressurizing device 120 arranged above the mounting bracket 110, the mounting bracket 110 has a containing chamber containing the shock absorber 200, the bottom of the containing chamber is provided with a mounting seat 130 for mounting the shock absorber 200, the mounting seat 130 and the pressurizing device 120 are respectively connected with two ends of the shock absorber 200, and the shock absorber 200 is pressed by the downward movement of the pressurizing device 120.

[0028] When detecting, the shock absorber 200 to be detected is installed in the accommodating cavity, the lower part of the shock absorber 200 is connected with the mounting seat 130, and the upper part of the shock absorber 200 is connected with the pressing device 120, and the connection is ensured to be stable. Then, the pressing device 120 is started to move downward, and the shock absorber 200 is pressed according to a preset pressure parameter, so as to simulate the stress state of the shock absorber 200 in actual work. At this time, since the detection environment is relatively quiet, if the shock absorber 200 produces an abnormal sound during the pressure process, the abnormal sound can be clearly captured and will not be interfered by strong background noise in the traditional detection mode. The problem that the abnormal sound of the shock absorber 200 is covered by the noise of the equipment in the traditional detection mode is effectively solved, the subtle abnormal sound of the shock absorber 200 in the pressure state can be accurately captured, early diagnosis of subtle faults of the shock absorber 200 is realized, the risk that potential quality hidden dangers are not detected in time is greatly reduced, and the accuracy of product quality control is improved. Compared with the traditional vertical vibration and drum vibration equipment, the noise of the device is extremely small when it operates, and the acoustic environment of the detection site is not disturbed, which is conducive to the detection personnel focusing on the sound characteristic analysis of the shock absorber 200, and further improves the accuracy and reliability of the detection.

[0029] The shock absorber abnormal sound detection device 100 provided in the application includes a mounting frame 110 and a pressing device 120 arranged above the mounting frame 110. The mounting frame 110 has an accommodating cavity for accommodating the shock absorber 200. The bottom of the accommodating cavity is provided with a mounting seat 130 for mounting the shock absorber 200. The mounting seat 130 and the pressing device 120 are respectively connected with two ends of the shock absorber 200. The pressing device 120 moves downward to press the shock absorber 200. The problem that the abnormal sound of the shock absorber 200 is covered by the noise of the equipment in the traditional detection mode is effectively solved. The subtle abnormal sound of the shock absorber 200 in the pressure state can be accurately captured, early diagnosis of subtle faults of the shock absorber 200 is realized, the risk that potential quality hidden dangers are not detected in time is greatly reduced, and the accuracy of product quality control is improved. Compared with the traditional vertical vibration and drum vibration equipment, the noise of the device is extremely small when it operates, and the acoustic environment of the detection site is not disturbed, which is conducive to the detection personnel focusing on the sound characteristic analysis of the shock absorber 200, and further improves the accuracy and reliability of the detection.

[0030] In one feasible embodiment of the application, as shown in Figure 1 , Figure 2 and Figure 3 , the pressing device 120 includes a sleeve rod 121 vertically arranged above the mounting frame 110, a pressing rod 122 penetrating in the sleeve rod 121, and a pressing handle 123 rotationally connected with the sleeve rod 121. The pressing rod 122 and the pressing handle 123 are rotationally connected through a connecting rod 124. The pressing handle 123 is rotated relative to the sleeve rod 121 to drive the pressing rod 122 to move linearly through the connecting rod 124. One end of the pressing rod 122 towards the mounting seat 130 is used to connect with the shock absorber 200.

[0031] Further, the pressing handle 123 comprises a handle section 1231 and a connecting section 1232 connected vertically, the connecting section 1232 is rotationally connected to the sleeve rod 121 at one end close to the handle section 1231, and rotationally connected to the connecting rod 124 at the other end away from the handle section 1231. The pressing handle 123 is composed of the handle section 1231 and the connecting section 1232 connected vertically, which is a two-section design with unique design. The connecting section 1232 is rotationally connected to the sleeve rod 121 at one end close to the handle section 1231, which constitutes the rotation fulcrum of the entire pressing structure, so that the handle can rotate flexibly around this point. The connecting section 1232 is rotationally connected to the connecting rod 124 at the other end away from the handle section 1231, forming a force transmission link, ensuring that the force applied by the operator on the handle section 1231 can be efficiently transmitted to the connecting rod 124, and then drive the pressing rod 122 to move.

[0032] The sleeve rod 121 is vertically arranged above the mounting frame 110, serving as the support main body of the entire pressing structure, providing guiding and limiting functions for the internal components, ensuring the accuracy of the pressing direction. The pressing rod 122 is arranged in the sleeve rod 121, which can realize stable linear motion under the constraint of the sleeve rod 121, and uniformly transmit the applied external force to the shock absorber 200. The pressing handle 123 rotationally connected to the sleeve rod 121 is the key component for the operator to apply force, which is rotationally connected to the pressing rod 122 through the connecting rod 124, forming a clever mechanical transmission link. When the operator rotates the pressing handle 123, the rotation of the handle is converted into the linear downward movement of the pressing rod 122 by the transmission characteristics of the connecting rod 124, thereby accurately controlling the pressing force on the shock absorber 200.

[0033] During detection, the shock absorber 200 to be detected is installed in the accommodation chamber, the shock absorber 200 is connected to the mounting seat 130 below, and the shock absorber 200 is connected to the pressing device 120 above, ensuring stable connection. Then hold the handle section 1231 of the pressing handle 123, and rotate it relative to the sleeve rod 121 with appropriate force and speed according to the detection requirements. During rotation, the force is quickly transmitted to the pressing rod 122 through the connecting rod 124, causing the pressing rod 122 to slide downward along the inner wall of the sleeve rod 121, gradually applying pressure to the shock absorber 200. The operator can flexibly adjust the amplitude and speed of rotation according to the test requirements, to accurately control the pressing process.

[0034] In one feasible embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 3As shown, the length of the handle section 1231 is longer than the length of the connecting section 1232. The long handle section 1231 can provide a longer force arm when the operator exerts force, according to the principle of leverage, the longer the force arm, the greater the torque generated under the same force, so that the operator can drive the entire pressurizing device 120 with less force. When the operator performs the pressurizing operation, due to the length advantage of the handle section 1231, the operator only needs to hold the handle section 1231 lightly, with small gripping force and rotation amplitude, to make the connecting section 1232 produce a large rotation effect, and then drive the connecting rod 124 and the pressure rod 122 to move efficiently, and transmit the pressure to the shock absorber 200.

[0035] In an embodiment of the present application, as shown in Figure 1 、 Figure 2 and Figure 3 , when the connecting section 1232 is parallel to the sleeve rod 121, the shock absorber 200 is in the limit compression state, and when the connecting section 1232 is perpendicular to the sleeve rod 121, the shock absorber 200 is in the uncompressed state. When the connecting section 1232 is parallel to the sleeve rod 121, it means that the shock absorber 200 is in the limit compression state, at this time the pressurizing device 120 exerts the maximum pressure on the shock absorber 200; and when the connecting section 1232 is perpendicular to the sleeve rod 121, the shock absorber 200 is in the uncompressed state, and the pressure is zero. This ingenious corresponding design provides an operator with a visual, simple and easy-to-understand shock absorber 200 compression state judgment method.

[0036] In an embodiment of the present application, as shown in Figure 1 、 Figure 2 and Figure 3 , the end of the pressure rod 122 towards the mounting base 130 is provided with a connecting seat 140, and the pressure rod 122 is connected with the shock absorber 200 through the connecting seat 140.

[0037] Further, the connecting seat 140 is provided with a second through hole 141, and the connecting seat 140 and the shock absorber 200 are connected through the second through hole 141 and the upper mounting hole of the shock absorber 200 by a latch.

[0038] Further, the connecting seat 140 includes oppositely arranged first and second connecting plates, and the shock absorber 200 is clamped between the first and second connecting plates.

[0039] Further, the second through hole 141 is arranged on the first and second connecting plates to ensure the stable connection of the first and second connecting plates and the upper end of the shock absorber 200.

[0040] The clamping space between the two connecting plates precisely matches the upper end structure of the shock absorber 200, ensuring tight connection without shaking or displacement risk. During the pressing process, the pressure transmitted by the pressing rod 122 can be evenly and completely applied to the shock absorber 200. The stable connection seat 140 design ensures the effectiveness and uniformity of pressure transmission, avoiding uneven pressure distribution caused by connection problems, which affects the abnormal sound detection results of the shock absorber 200. At the same time, its universal design can adapt to the upper end connection requirements of different models of shock absorber 200, improving the overall applicability of the device and providing strong support for efficient and accurate detection.

[0041] In an embodiment of the present application, as shown in Figure 1 、 Figure 2 and Figure 3 , the mounting seat 130 is provided with a first perforation 131, and the mounting seat 130 and the shock absorber 200 are connected by inserting a pin through the first perforation 131 and the lower mounting hole of the shock absorber 200.

[0042] Further, the mounting seat 130 includes a first mounting plate and a second mounting plate arranged opposite to each other, and the first mounting plate and the second mounting plate are used to clamp the shock absorber 200.

[0043] Further, the first perforation 131 is arranged on the first mounting plate and the second mounting plate to ensure the stable connection of the first mounting plate and the second mounting plate with the lower end of the shock absorber 200.

[0044] The clamping space between the two mounting plates precisely matches the lower end structure of the shock absorber 200, ensuring tight connection without shaking or displacement risk. At the same time, the stable mounting ensures the stability of the shock absorber 200 during the stress process, avoiding additional interference noise caused by the shaking of the lower end, ensuring the accuracy of the abnormal sound detection, and providing a solid foundation for high-quality detection.

[0045] Further, the mounting frame 110 includes an upper mounting frame and a lower mounting frame connected to each other, the upper mounting frame is provided with a plurality of first row holes, and the lower mounting frame is provided with a plurality of second row holes, and the height difference between the pressing device 120 and the mounting seat 130 is adjusted by connecting different first row holes and second row holes through fasteners, so as to detect the abnormal sound of shock absorbers of different specifications.

[0046] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for detecting abnormal noise in a shock absorber, characterized in that, The device includes a mounting frame and a pressurizing device disposed above the mounting frame. The mounting frame has a housing chamber for accommodating the shock absorber. A mounting seat for mounting the shock absorber is disposed at the bottom of the housing chamber. The mounting seat and the pressurizing device are respectively connected to both ends of the shock absorber. The shock absorber is pressurized by the downward movement of the pressurizing device.

2. The shock absorber noise detection device according to claim 1, characterized in that, The pressurizing device includes a sleeve rod vertically arranged above the mounting frame, a pressure rod passing through the sleeve rod, and a pressurizing handle rotatably connected to the sleeve rod. The pressure rod and the pressurizing handle are rotatably connected by a connecting rod. Rotating the pressurizing handle relative to the sleeve rod causes the pressure rod to move linearly through the connecting rod. The end of the pressure rod facing the mounting base is used to connect to the shock absorber.

3. The shock absorber abnormal noise detection device according to claim 2, characterized in that, The pressure handle includes a handle section and a connecting section that are vertically connected. The end of the connecting section near the handle section is rotatably connected to the sleeve rod, and the end of the connecting section away from the handle section is rotatably connected to the connecting rod.

4. The shock absorber noise detection device according to claim 3, characterized in that, The length of the handle segment is longer than the length of the connecting segment.

5. The shock absorber noise detection device according to claim 3, characterized in that, When the connecting section is parallel to the sleeve rod, the shock absorber is in a state of extreme compression; when the connecting section is perpendicular to the sleeve rod, the shock absorber is in a state of no compression.

6. The shock absorber abnormal noise detection device according to claim 2, characterized in that, The end of the pressure rod facing the mounting base is provided with a connecting seat, and the pressure rod is connected to the shock absorber through the connecting seat.

7. The shock absorber abnormal noise detection device according to claim 1, characterized in that, The mounting base is provided with a first through hole, and the mounting base and the shock absorber are connected by a pin passing through the first through hole and the lower mounting hole of the shock absorber.

8. The shock absorber abnormal noise detection device according to claim 6, characterized in that, The connecting seat is provided with a second through hole, and the connecting seat and the shock absorber are connected by a pin passing through the second through hole and the upper mounting hole of the shock absorber.

9. The shock absorber abnormal noise detection device according to claim 1, characterized in that, The mounting base includes a first mounting plate and a second mounting plate disposed opposite to each other, and a shock absorber is clamped between the first mounting plate and the second mounting plate.

10. The shock absorber abnormal noise detection device according to claim 6, characterized in that, The connecting seat includes a first connecting plate and a second connecting plate disposed opposite to each other, and a shock absorber is clamped between the first connecting plate and the second connecting plate.

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