Device for testing adhesion properties of rubber vibration isolation blocks

Abstract

This utility model relates to a testing device for the bonding performance of rubber vibration isolators. The device has mounting plates bonded and fixed to both the upper and lower ends of a buffer pad. Unlike existing technologies, a fixed plate is provided on the lower side of the buffer pad. A support mechanism in the middle of the upper part of the fixed plate abuts against the lower mounting plate. Limiting mechanisms on both sides apply tension to the lower mounting plate, constraining the position of the buffer pad and the mounting plate in conjunction with the support force. The testing mechanisms on the left and right sides of the upper part of the fixed plate are at the same horizontal level as the upper mounting plate. The testing mechanisms are mainly composed of bidirectional bolts. When the bidirectional bolts are rotated, the driven parts move closer together, and combined with the constraint of the positioning tube on the bidirectional bolts, the longitudinal height of the bidirectional bolts can be adjusted. Because the follower block I is movably connected to the upper mounting plate, an oblique upward thrust can be applied, simulating the oblique tensile action in actual applications, thus more accurately testing the bonding strength and reliability between the components of the rubber vibration isolator.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a testing device for the adhesive performance of rubber vibration isolators. Background Technology

[0002] During the operation of industrial equipment, rubber vibration isolators serve as crucial buffers and vibration damping components, and their adhesive performance directly impacts the normal operation and service life of the equipment. Therefore, accurate testing of the adhesive performance of rubber vibration isolators is of paramount importance.

[0003] Currently, existing rubber vibration isolator bonding performance testing devices have certain limitations in design and function. Existing testing devices typically only provide thrust in a single direction, primarily horizontal or longitudinal. This unidirectional thrust cannot fully simulate the complex stroke changes during equipment vibration.

[0004] In actual operating conditions, equipment vibrations are often multi-directional and complex, requiring rubber vibration isolators to withstand forces and deformations from various directions. However, existing testing devices, due to their unidirectional thrust, can only test the adhesive performance of rubber vibration isolators in a specific direction, failing to comprehensively assess their true performance under complex real-world conditions. This leads to discrepancies between test results and actual usage, failing to accurately reflect the adhesive strength of rubber vibration isolators during actual operation.

[0005] For example, in some high-speed rotating or frequently starting and stopping equipment, rubber vibration isolators are subjected to forces in multiple directions, including horizontal, longitudinal, and oblique. Existing testing equipment cannot simulate these complex stress conditions, which may cause adhesive failure in rubber vibration isolators that have passed testing, thus affecting the normal operation of the equipment and potentially causing safety accidents.

[0006] Therefore, in order to more accurately test the bonding performance of rubber vibration isolators and make the test results closer to actual use, it is necessary to develop a new type of rubber vibration isolator bonding performance testing device that can simulate the complex motion stroke changes during the vibration of actual equipment. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention proposes a testing device for the adhesive performance of rubber vibration isolators. This device innovatively incorporates the function of simulating oblique thrust, significantly enhancing the reliability of the test results. This improvement effectively solves the problem that existing technologies can only simulate thrust in a single direction, thereby greatly improving the comprehensiveness and practicality of the test results.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A rubber vibration isolator bonding performance testing device includes a buffer pad, with a mounting plate fixedly connected to both the upper and lower ends of the buffer pad. A fixing plate is located on the lower side of the buffer pad, and a support mechanism is fixedly connected to the middle of the upper end of the fixing plate. A limiting mechanism is located on the left and right sides of the upper end of the fixing plate, wherein the limiting mechanism applies a downward pulling force to the lower mounting plate. A testing mechanism is located on the left and right sides of the upper end of the fixing plate, and the testing mechanism includes a bidirectional screw with vertical axial direction. A driven member is screwed to the outer side of each of the two axial ends of the bidirectional screw. Each driven member has a left... Two driven rods are rotatably connected to the right sides respectively. The two driven rods on the side closer to the buffer pad are rotatably connected to follower block I. The two driven rods on the side farther away from the buffer pad are rotatably connected to each other by a pin. The follower block I is movably connected to the upper mounting plate. A positioning rod is fixedly connected to the left and right sides of the upper end of the fixed plate respectively. The pin is slidably connected to the positioning rod. A positioning tube is screwed to the lower end of the bidirectional screw. The positioning tube is fixedly connected to the limiting mechanism on the same side. When the bidirectional screw is rotated to reduce the distance between the two driven parts, the longitudinal height of the bidirectional screw is raised synchronously.

[0010] Preferably, the limiting mechanism includes a support rod, the upper end of which is fixedly connected to the positioning tube, and the lower end of which is fixedly connected to the fixing plate. Furthermore, the upper end of the support rod has an internal threaded hole through which a one-way screw is threaded. Each one-way screw is rotatably connected to a follower block II on the side near the buffer pad, and the follower block II is movably connected to the mounting plate that is relatively lower.

[0011] Preferably, the projection of each of the following blocks I and each of the following blocks II on the vertical plane is an L-shaped structure, and the L-shaped opening of each of the following blocks I is located on its upper side, the L-shaped opening of each of the following blocks II is located on its lower side, and each of the mounting plates is embedded in the corresponding L-shaped opening.

[0012] Preferably, an elastic material buffer pad is fixedly connected to the L-shaped opening of each follower block I and the L-shaped opening of each follower block II, and the buffer pad is provided with anti-slip grooves.

[0013] Preferably, the support mechanism includes a support tube and a contact tube, wherein the upper end of the support tube is screwed to the lower end of the contact tube, and the upper end face of the contact tube abuts against the lower mounting plate.

[0014] Preferably, the upper end of the contact tube has multiple mating holes that are equidistantly arranged around the central axis of the contact tube, and each of the multiple mating holes is equipped with an adjusting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The highlight of this invention lies in the clever placement of a fixing plate beneath the buffer pad. This fixing plate works closely with the support and limiting mechanisms to precisely constrain the position of the buffer pad and its mounting plate. Simultaneously, testing mechanisms are installed on both sides of the upper end of the fixing plate. The bidirectional bolts, driven members, and driven rods within these mechanisms cooperate. When the bidirectional bolts rotate, causing the two driven members to move closer together, the positional constraint of the bidirectional bolts by the positioning tube allows for the synchronous lifting of the longitudinal height of the bidirectional bolts. Because the follower block I is movably connected to the relatively upper mounting plate, it can apply an upward oblique thrust to the relatively upper mounting plate, simulating the oblique force that may occur during actual equipment vibration. This overcomes the limitation of existing devices having a single thrust direction. This design can more comprehensively and realistically reproduce the tensile stress of the rubber vibration isolator in practical applications, thereby significantly improving the accuracy and reliability of testing the adhesion strength between adjacent rubber pads, metal pads, and the mounting plate and buffer pad. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram showing the cooperation relationship between the testing mechanism and the limiting mechanism of this utility model.

[0019] Figure 3 This is a schematic diagram showing the connection relationship between the support mechanism and the limiting mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the overall structure of the testing mechanism of this utility model.

[0021] In the diagram: 1. Buffer pad; 2. Mounting plate; 3. Buffer pad; 4. Support mechanism; 401. Adjusting rod; 402. Contact tube; 403. Mating hole; 405. Support tube; 5. Limiting mechanism; 501. Follower block II; 502. One-way screw; 503. Support rod; 6. Testing mechanism; 601. Two-way screw; 602. Follower; 603. Follower rod; 604. Pin; 605. Positioning rod; 606. Follower block I; 607. Positioning tube. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1 As shown, this utility model relates to a device for testing the bonding performance of rubber vibration isolators. Its structure is similar to existing devices, including a buffer pad 1. In practical applications, the buffer pad 1 is composed of multiple layers of rubber pads and metal pads stacked alternately, with adjacent rubber pads and metal pads bonded together. This structural design allows the rubber pads and metal pads to cooperate with each other, thereby adjusting the deformation resistance of the buffer pad 1 and ensuring that its deformation degree and deformation resistance performance meet the requirements in actual use.

[0025] It is worth noting that mounting plates 2 are fixedly connected to the upper and lower ends of the buffer pad 1, and the mounting plates 2 are fixed to the buffer pad 1 by adhesive. The mounting plates 2 facilitate the connection between the buffer pad 1 and the actual equipment.

[0026] refer to Figure 1 , Figure 2 The difference between this device and existing technology devices is that a fixing plate is provided on the lower side of the buffer pad 1, and a support mechanism 4 is fixedly connected to the middle section of the upper part of the fixing plate. The support mechanism 4 is in contact with the relatively lower mounting plate 2.

[0027] Specifically, the support mechanism 4 consists of two parts: a support tube 405 and a contact tube 402, which are fixed together by a precision threaded connection. The height can be easily adjusted by simply rotating the contact tube 402.

[0028] In addition, the upper end face of the contact tube 402 fits tightly against the mounting plate 2 below, providing solid support for the entire device and thus ensuring the absolute stability of the structure during testing.

[0029] To facilitate operation, the device features multiple equidistant mating holes 403 arranged around the central axis at the upper end of the contact tube 402, and is equipped with a convenient adjusting rod 401. By inserting the adjusting rod 401 into different mating holes 403 and rotating it, the height of the contact tube 402 can be finely adjusted, thereby providing upward support for the mounting plate 2.

[0030] In addition, limiting mechanisms 5 are respectively provided on the left and right sides of the upper end of the fixed plate. The limiting mechanisms 5 apply a downward pulling force to the relatively lower mounting plate 2, which works in conjunction with the upward supporting force of the support mechanism 4 on the mounting plate 2 to achieve positional constraint on the buffer pad 1 and the mounting plate 2, ensuring that no positional deviation occurs during the test and affects the test results.

[0031] Specifically, such as Figure 3 As shown, the limiting mechanism 5 includes a support rod 503, a one-way screw 502, and a follower block II 501. The support rod 503 is fixed to the fixed plate, and the one-way screw 502 is screwed into the internal threaded hole at the upper end of the support rod 503. The threaded effect is used to fix the position of the one-way screw 502. Furthermore, by utilizing the characteristic of the follower block II 501 being movably connected to the relatively lower mounting plate 2, the technical effect of positionally constraining the relatively lower mounting plate 2 is achieved through the follower block II 501.

[0032] Meanwhile, in actual operation, rotating the one-way screw 502, with the help of the thread transmission mechanism, the one-way screw 502 moves in the axial direction, thereby adjusting the distance between the two follower blocks II 501 to adapt to the needs of mounting plates 2 of various sizes.

[0033] refer to Figure 1 , Figure 4 The device has testing mechanisms 6 on the left and right sides of the upper end of the fixed plate, and the testing mechanisms 6 are on the same horizontal plane as the relatively upper mounting plate 2. The testing mechanisms 6 apply additional thrust to the relatively upper mounting plate 2, and together with the limiting mechanism 5, constrain the position of the relatively lower mounting plate 2. By utilizing the difference in position between the upper and lower mounting plates 2, the device simulates the tensile force that may be borne in actual application scenarios, and realizes the test of the adhesion and reliability between adjacent rubber pads, metal pads, and mounting plates 2 and buffer pad blocks 1.

[0034] Specifically, such as Figure 4 As shown, the testing mechanism 6 includes a bidirectional bolt. Each of the two axial ends of the bidirectional bolt is screwed with a follower 602. When the device restricts the follower 602 from rotating, and the bidirectional bolt is rotated, due to the thread characteristics of the bidirectional bolt, the two followers 602 will move closer to each other along the bidirectional bolt, that is, reduce the distance between the two followers 602.

[0035] In addition, this device has a driven rod 603 rotatably connected to each of the left and right sides of each driven member 602. The two driven rods 603 on the side closer to the buffer pad 1 are rotatably connected to a follower block I 606, and the two driven rods 603 on the side farther away from the buffer pad 1 are rotatably connected to each other via a pin 604. By utilizing the mutual rotation between the driven rods 603 and the rotatable connection between the driven rods 603, the distance between the follower block I 606 and the pin 604 is changed during the relative movement of the two driven members 602.

[0036] It should be noted that a positioning rod 605 is fixedly connected to the left and right sides of the upper end of the fixed plate of this device. The pin 604 is slidably connected to the positioning rod 605, which ensures that the rotation of the driven rod 603 and the driven member 602 is effectively constrained through the cooperation of the pin 604 and the positioning rod 605 without interfering with the mutual rotation of the driven rod 603. This ensures that the two driven members 602 can be controlled to move relative to or away from each other during the rotation of the bidirectional bolt.

[0037] It should be emphasized that, since the two driven members 602 move at the same speed, in actual operation, the height of the follower block I 606 and the pin 604 relative to the bidirectional bolt remains unchanged. When the distance between the two driven members 602 changes, only the angle of the driven rod 603, that is, the distance between the follower block I 606 and the central axis of the bidirectional bolt, and the distance between the pin 604 and the central axis of the bidirectional bolt change synchronously.

[0038] Therefore, further reference Figure 3 , Figure 4 The device has a positioning tube 607 screwed to the lower end of the bidirectional bolt. The positioning tube 607 is fixedly connected to the limiting mechanism 5 on the same side to achieve position constraint. At this time, by constraining the orientation of the bolt on the lower side of the bidirectional bolt, when the bidirectional bolt is rotated to reduce the distance between the two driven members 602, the longitudinal height of the bidirectional bolt is increased accordingly. At the same time, the movable connection characteristics of the follower block I 606 and the upper mounting plate 2 are utilized to achieve the technical effect of applying an oblique upward thrust to the relatively upper mounting plate 2 through the testing mechanism 6.

[0039] Please see Figure 3 and Figure 4 Specifically, this device ensures that the projection of each follower block I 606 and each follower block II 501 in the vertical direction presents an L-shaped structure. Furthermore, the L-shaped opening of each follower block I 606 is located at its upper part, while the L-shaped opening of each follower block II 501 is located at its lower part. By precisely embedding each mounting plate 2 into the corresponding L-shaped opening, the unique structure of the L-shaped opening allows for effective fixation and constraint of the mounting plate 2.

[0040] In practical applications, the L-shaped opening of follower block II 501 engages the mounting plate 2 at a relatively lower position, so the movement of follower block II 501 will exert a downward pulling force on the mounting plate 2. Correspondingly, the L-shaped opening of follower block I 606 engages the mounting plate 2 at a relatively higher position, and follower block I 606 can continuously exert an upward pushing force on the corresponding mounting plate 2.

[0041] In addition, elastic buffer pads 3 are securely installed in the L-shaped openings of each follower block I 606 and follower block II 501, and the surface of the buffer pads 3 is designed with anti-slip grooves. This design ensures the stability of the device during testing and prevents unnecessary displacement of the rubber vibration isolation blocks during testing.

[0042] In practical application, this utility model;

[0043] Preparation before experiment

[0044] 1. Setting up buffer pad 1: Buffer pad 1 must be securely placed on the fixed plate, ensuring that the upper end face of the contact tube 402 of the support mechanism 4 is tightly fitted against the lower part of the mounting plate 2. Adjust the height of the contact tube 402 by inserting the adjusting rod 401 into the mating hole 403 of the contact tube 402 to provide appropriate upward support force for the mounting plate 2.

[0045] 2. Adjust the limiting mechanism 5: By rotating the one-way screw 502 of the limiting mechanism 5, adjust the distance between the two follower blocks II 501 to match the size of the mounting plate 2, and ensure that the L-shaped opening of the follower block II 501 can firmly lock the lower part of the mounting plate 2.

[0046] 3. Check the test mechanism 6: Verify whether the connection status of the components of the test mechanism 6, such as the bidirectional screw 601, driven member 602, driven rod 603, and follower block I 606, is normal, and ensure that the L-shaped opening of follower block I 606 can stably lock the upper part of the mounting plate 2.

[0047] Experimental process

[0048] 1. Apply initial constraints to fix the driven member 602 and prevent it from rotating, then rotate the bidirectional screw 601. Due to the thread design of the bidirectional screw 601, the two driven members 602 gradually approach each other along the screw, thereby causing the longitudinal height of the bidirectional screw 601 to rise synchronously.

[0049] 2. Simulated Tension Stage: The movement of the driven member 602 causes the driven rod 603 to rotate, adjusting the distance between the follower block I 606 and the pin 604. The follower block I 606 applies an oblique thrust to the upper part of the mounting plate 2. At the same time, the contact tube 402 of the support mechanism 4 stably supports the lower part of the mounting plate 2, causing a deviation in the position of the upper and lower mounting plates 2, thereby simulating the tensile effect of the rubber vibration isolator in a real-world scenario.

[0050] 3. Observation and Recording: Continuously monitor the bonding status of the rubber vibration isolators and record relevant data when bonding fails.

[0051] Post-experiment processing

[0052] 1. Termination of experiment: Stop rotating the bidirectional screw 601 and release the thrust of the test mechanism 6 on the mounting plate 2.

[0053] 2. Release the constraint: Rotate the one-way screw 502 of the limit mechanism 5 in the opposite direction to separate the follower block II 501 from the mounting plate 2.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber vibration isolator bonding performance testing device, comprising a buffer pad (1), with a mounting plate (2) fixedly connected to the upper and lower ends of the buffer pad (1), and a fixing plate provided on the lower side of the buffer pad (1), characterized in that: A support mechanism (4) is fixedly connected to the middle of the upper end of the fixed plate, and a limiting mechanism (5) is provided on the left and right sides of the upper end of the fixed plate. The limiting mechanism (5) applies a downward pulling force to the relatively lower mounting plate (2). A test mechanism (6) is provided on the left and right sides of the upper end of the fixed plate. The test mechanism (6) includes a bidirectional screw (601) with an upper and lower axis. A follower (602) is screwed to the outer side of the two axial ends of the bidirectional screw (601). At the same time, a follower rod (603) is rotatably connected to the left and right sides of each follower (602). The two follower rods (603) on the side closer to the buffer pad (1) are rotatably connected to a follower block I (606). The two follower rods (603) on the side farther away from the buffer pad (1) are rotatably connected to each other through a pin (604). The follower block I (606) is movably connected to the mounting plate (2) on the upper side. A positioning rod (605) is fixedly connected to the left and right sides of the upper end of the fixed plate, and the pin (604) is slidably connected to the positioning rod (605); A positioning tube (607) is screwed to the lower end of the bidirectional screw (601). The positioning tube (607) is fixedly connected to the limiting mechanism (5) on the same side. When the bidirectional screw (601) is rotated to reduce the distance between the two driven members (602), the longitudinal height of the bidirectional screw (601) is raised synchronously.

2. The rubber vibration isolator bonding performance testing device according to claim 1, characterized in that: The limiting mechanism (5) includes a support rod (503), the upper end of the support rod (503) is fixedly connected to the positioning tube (607), the lower end of the support rod (503) is fixedly connected to the fixing plate, and the upper end of the support rod (503) is provided with an internal threaded hole, and a one-way screw (502) is screwed into the internal threaded hole. Each of the unidirectional screws (502) is rotatably connected to a follower block II (501) on the side near the buffer pad (1), and the follower block II (501) is movably connected to the mounting plate (2) which is located relatively lower.

3. The rubber vibration isolator bonding performance testing device according to claim 2, characterized in that: The projection of each of the following blocks I (606) and each of the following blocks II (501) on the vertical plane is an L-shaped structure. The L-shaped opening of each of the following blocks I (606) is located on its upper side, and the L-shaped opening of each of the following blocks II (501) is located on its lower side. At the same time, each of the mounting plates (2) is embedded in the corresponding L-shaped opening.

4. The rubber vibration isolator bonding performance testing device according to claim 3, characterized in that: An elastic material buffer pad (3) is fixedly connected to the L-shaped opening of each of the following block I (606) and the L-shaped opening of each of the following block II (501), and the buffer pad (3) is provided with anti-slip grooves.

5. The rubber vibration isolator bonding performance testing device according to claim 1, characterized in that: The support mechanism (4) includes a support tube (405) and a contact tube (402), wherein the upper end of the support tube (405) is screwed to the lower end of the contact tube (402), and the upper end face of the contact tube (402) abuts against the lower mounting plate (2).

6. The rubber vibration isolator bonding performance testing device according to claim 5, characterized in that: The upper end of the contact tube (402) is provided with multiple mating holes (403), which are equidistantly arranged around the central axis of the contact tube (402). Furthermore, each of the multiple mating holes (403) is equipped with an adjusting rod (401).

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