Dynamic compression-shear testing machine with floating system
By introducing a floating hydraulic cylinder and a limit support assembly into the compression-shear testing machine, the follow-up control of the shear plate is realized, which solves the problems of shear plate position deviation and measurement error, and improves the measurement accuracy and working efficiency of the testing machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-10
Smart Images
Figure CN223985968U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to testing machine technical field especially relates to a dynamic compression shear testing machine with floating system. BACKGROUND
[0002] Dynamic compression shear testing machine is mainly used in highway, bridge, product quality technical supervision, railway bridge department's highway bridge plate type rubber support, basin type rubber support's mechanical property test, so as to judge whether the mechanical property of highway bridge plate type rubber support, basin type rubber support reaches the prescribed requirement.
[0003] At present, the extension and retraction of the shear plate in the use process of the compression shear testing machine are mainly relied on the output of the oil cylinder, and the moving direction is limited by the pull rod, but the shear plate is often subjected to the pressure of heavy objects and the tension of the oil cylinder, which will affect its use effect to a certain extent, such as the deviation in the horizontal direction of the shear plate after long-term use, the accuracy of the position of the equipment parts is limited, which will cause errors in the measurement results of the experiment, in addition, in the process of shear work, in order to ensure the accuracy of the shear work, the position of the shear equipment needs to be adjusted in real time when the workpiece of different specifications and the deformation of the workpiece shearing process appear, but the existing compression shear testing machine lacks the corresponding components, the accuracy of the measurement results is limited, therefore, the utility model provides a dynamic compression shear testing machine with floating system. UTILITY MODEL CONTENTS
[0004] The utility model discloses in view of the technical problem existing in the use process of the compression shear testing machine, and puts forward a kind of dynamic compression shear testing machine with floating system, which is reasonable in design, simple in structure, convenient to process and can realize the auxiliary load bearing in the moving process of shear plate, reduce the possibility of position deviation due to stress, guarantee the accuracy of the position, ensure the effective performance of shearing work, simultaneously, in the process of shearing work, the follow-up control of shear plate is completed, the accuracy of sample horizontal force is ensured, the work progress is improved, and the use demand of a kind of dynamic compression shear testing machine with floating system is met.
[0005] In order to achieve the above object, the utility model adopts the technical scheme of a dynamic compression and shearing testing machine with a floating system, which comprises a mounting table, a compression and shearing testing machine body is arranged on the mounting table, a guide rail is arranged on the inner side of the compression and shearing testing machine body, a shearing device is arranged on one side of the guide rail, the shearing device comprises a shearing trolley, a floating oil cylinder controlled by a servo valve is arranged below the shearing trolley, a placing rack is arranged above the floating oil cylinder, a shearing oil cylinder is arranged in the placing rack, pull rods are arranged on the both sides of the output end of the shearing oil cylinder, mounting plates are arranged on the upper and lower ends of one side of the placing rack, a top plate is arranged on the front side of the mounting plate, a top block is arranged between the two mounting plates and is connected with the pull rod, a limiting support assembly is arranged below the top block, and a shearing plate is arranged in the top block.
[0006] Preferably, the limiting support assembly comprises a limiting strip arranged on the outer side of the mounting plate, and an adaptive wheel is arranged below the top block corresponding to the limiting strip.
[0007] Preferably, the compression and shearing testing machine body comprises a base, a lead screw is arranged at the corner above the base, a lifting cross beam is arranged on the lead screw, an upper pressing plate is arranged below the lifting cross beam, and a workbench is arranged above the base.
[0008] Preferably, an oil source system box is further arranged on the mounting table, grooves of triangular shape are arranged in the upper and lower end faces of the shearing plate and the lower end face of the upper pressing plate, and the grooves on the shearing plate and the grooves on the upper pressing plate are oppositely directed.
[0009] Compared with the prior art, the utility model has the advantages and positive effects that,
[0010] 1、The dynamic compression and shearing testing machine with a floating system utilizes the floating oil cylinder, the vertical height of the shearing device is adjusted by the floating oil cylinder carried by the shearing trolley, the floating oil cylinder is accurately controlled through the servo valve, the follow-up function of shearing is realized, that is, the floating cylinder can adjust the vertical height of the shearing oil cylinder, the axis of the load cell and the symmetry axis of the middle shearing plate are coincident, the accuracy of the sample horizontal force is ensured, the limiting support assembly is arranged, the smoothness of the shearing plate during movement is ensured, the possibility of deviation during use is reduced, the accuracy of the position is ensured, the accuracy of the detection result is ensured, the device is reasonable in design, simple in structure, convenient to process, can realize the auxiliary bearing during the movement of the shearing plate, reduces the possibility of position deviation due to stress, ensures the accuracy of the position, ensures the effective shearing work, at the same time, the follow-up control of the shearing plate is completed during the shearing work, the accuracy of the sample horizontal force is ensured, the work progress is improved, and the use requirement is met. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0012] Figure 1 The structural schematic diagram of the installation and establishment state of the compression-shear testing machine provided by the present application is shown in the figure.
[0013] Figure 2 The front view of the structure of the installation and establishment state of the compression-shear testing machine provided by the present application is shown in the figure.
[0014] Figure 3 The structural schematic diagram of the dynamic compression-shear testing machine with a floating system provided by the present application is shown in the figure.
[0015] Figure 4 The structural schematic diagram of the installation and establishment state of the compression-shear testing machine provided by the present application is shown in the figure. Figure 2 The local enlarged schematic diagram of the structure at A in the figure is shown in the figure.
[0016] In the above figures, 1 is a placement table; 2 is a guide rail; 3 is a shearing device; 31 is a shearing trolley; 32 is a floating oil cylinder; 33 is a placing rack; 34 is a shearing oil cylinder; 35 is a pull rod; 36 is a mounting plate; 37 is a top plate; 38 is a top block; 39 is a shearing plate; 4 is a notch; 5 is a limiting support assembly; 51 is a limiting strip; 52 is an adaptive wheel; 6 is a base; 7 is an oil source system box; 8 is a lead screw; 9 is a lifting cross beam; 10 is an upper compression plate; 11 is a workbench. DETAILED DESCRIPTION
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0018] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.
[0019] Embodiments, such as Figures 1-4As shown, a dynamic compression shear testing machine with a floating system comprises a setting table 1, a compression shear testing machine body is arranged on the setting table 1, and a guide rail 2 is arranged on the inside of the compression shear testing machine body. The arrangement of the above-mentioned device components is a conventional technical means, and specific details will not be described again. In order to realize stable bearing of the position of the shear plate 39 and reduce the possibility of deviation, specifically: a shearing device 3 is arranged on one side of the guide rail 2, the shearing device 3 comprises a shearing trolley 31, a floating oil cylinder 32 controlled by a servo valve is arranged below the shearing trolley 31, the floating oil cylinder 32 is controlled by the servo valve to realize the follow-up function of shearing, at the same time, the floating cylinder can adjust the vertical height of the shearing oil cylinder 34, so as to ensure that the axis of the load sensor and the symmetry axis of the intermediate shear plate coincide, and the accuracy of the horizontal force of the sample is ensured; a placing rack 33 is arranged above the floating oil cylinder 32, the shearing oil cylinder 34 is arranged in the placing rack 33, the selected shearing oil cylinder 34 is a single-rod double-acting servo oil cylinder, and imported gaskets, seals and dustproof rings and the like are used for sealing, so that the sealing performance is good, the service life is long, and the safety factor is high; pull rods 35 are arranged on both sides of the output end of the shearing oil cylinder 34, of course, a connecting plate can be arranged at the output end of the shearing oil cylinder 34 to provide mounting positions for the two pull rods 35, the other end penetrates the placing rack 33 and is arranged, mounting plates 36 are arranged at the upper and lower ends of one side of the placing rack 33, a top plate 37 is arranged on the front side of the mounting plate 36, the arrangement of the mounting plate 36 and the top plate 37 can limit the movement of the shearing device 3 to the position close to the upper compression plate 10, and also provides a convenient condition for the implementation of subsequent shearing work, a top block 38 is arranged between the two mounting plates 36 and is connected with the pull rod 35, a limiting support assembly 5 is arranged below the top block 38, and a shear plate 39 is arranged in the top block 38. When the shear plate 39 is put into use, the shearing oil cylinder 34 is controlled to operate and drive the shear plate 39 to move to the area below the upper compression plate 10 and contact the workpiece, when the shearing work is carried out, the shear plate 39 is pulled back under the driving of the shearing oil cylinder 34, in this process, the limiting support assembly 5 can support the moving direction of the shear plate 39 and reduce the possibility of deviation of the position, and the adjustment and cooperation of the floating oil cylinder 32 in controlling the position of the shearing device 3 in the vertical direction not only can realize the follow-up of shearing and ensure the accuracy of the horizontal force, but also can prevent the shear plate 39 from affecting the test results due to the deviation of the position, so as to meet the use requirement.
[0020] In the above process: The floating cylinder 32 is used to adjust the vertical height of the shearing device 3, which is carried by the shearing carriage 31. The floating cylinder 32 is precisely controlled by a servo valve to achieve the follow-up function of shearing. That is, the floating cylinder can adjust the vertical height of the shearing cylinder 34, ensuring that the axis of the load sensor and the axis of symmetry of the intermediate shearing plate coincide, thus ensuring the accuracy of the horizontal force on the sample. The limiting support component 5 ensures the smoothness of the shearing plate 39 during movement and reduces the possibility of displacement during use, ensuring the accuracy of its position and the accuracy of the test results. This device is reasonably designed, simple in structure, easy to process, and can provide auxiliary bearing for the shearing plate 39 during movement, reducing the possibility of displacement due to force, ensuring the accuracy of its position, and ensuring the effective execution of the shearing work. At the same time, during the shearing work, the follow-up control of the shearing plate 39 is completed, ensuring the accuracy of the horizontal force on the sample, improving the work process, and meeting the usage requirements.
[0021] To ensure the smooth movement of the shear plate 39 and reduce the possibility of deviation during use, thus guaranteeing the accuracy of its position, the limiting support assembly 5 includes a limiting strip 51 set on the outside of the mounting plate 36. A matching wheel 52 is provided below the top block 38 corresponding to the limiting strip 51. In this assembly, the limiting strip 51, set on the mounting plate 36, fully ensures the accuracy of the shear plate 39's position after use, while the matching wheel 52 improves the smoothness of its movement, ensuring the effectiveness of use. Furthermore, the limiting support assembly 5 effectively prevents excessive force on the shear plate 39, thus preventing positional deviation and ensuring the effective position of the shear plate 39. This guarantees the accuracy of the results in the shearing test and meets the usage requirements.
[0022] To ensure the good functionality of the compression-shear testing machine mechanism, the machine body includes a base 6. A lead screw 8 is located at the corner above the base 6. A lifting beam 9 is mounted on the piston rod and lead screw 8. An upper pressure plate 10 is located below the lifting beam 9, with good flatness to ensure the accuracy and reliability of the rubber bearing test results. A worktable 11 is located above the base 6. Specifically, the compression-shear testing machine body adopts a bottom-mounted plunger cylinder (located at the geometric center within the base 6), a four-lead screw frame main unit, and stepless adjustment of the test space to facilitate testing needs at different heights. The machine has high rigidity, small deformation, and accurate measurement data. The lifting beam 9 has a vertical transmission mechanism. The system employs a screw and nut assembly for lifting and lowering. A cycloidal pinwheel reducer drives a dual-shaft output, which in turn drives the sprocket and chain. The chain drives the screw assembly, enabling stepless adjustment of the test space. The four screws consist of two left-handed and two right-handed screws, which eliminates the influence of the lifting beam on the starting torque of the screws. This structure allows for convenient vertical adjustment of the lifting beam 9, ensuring that the upper pressure plate 10 can rest against the workpiece during subsequent processing. Of course, this is also a commonly used technical method. In addition, to further improve the functionality of the device, a feeding trolley, i.e., a lower pressure plate, can be installed on the guide rail 2 on the other side. A platform can be added between the lower pressure plate and the main cylinder piston to increase the stress resistance of the lower pressure plate.
[0023] To ensure the normal operation of the shearing device 3, enabling smooth shearing operations and responsive adjustment, an oil supply system box 7 is installed on the mounting platform 1. This box primarily provides oil to the shearing device 3 and the floating cylinder 32, ensuring smooth production and processing. Furthermore, to improve the rationality of the device's design, triangular slots 4 are provided on both the upper and lower end faces of the shearing plate 39 and the lower end face of the upper pressure plate 10. The slots 4 on the shearing plate 39 and the upper pressure plate 10 face opposite directions. These slots 4 increase the friction between the surfaces of the shearing plate 39 and the upper pressure plate 10, significantly improving the stability of the test piece's position. This also ensures the effective implementation of the shearing test, guarantees the work progress, and meets the usage requirements.
[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A dynamic compression-shear testing machine with a floating system, comprising a setting table, a compression-shear testing machine body is set up on the setting table, a guide rail is set up inside the compression-shear testing machine body, a shearing device is arranged on one side of the guide rail, characterized in that, The shearing device comprises a shearing trolley, a floating oil cylinder controlled by a servo valve is arranged below the shearing trolley, a placing rack is arranged above the floating oil cylinder, a shearing oil cylinder is arranged in the placing rack, pull rods are arranged on both sides of the output end of the shearing oil cylinder, mounting plates are arranged on the upper and lower ends of one side of the placing rack, top plates are arranged on the front sides of the mounting plates, top blocks are arranged between the two mounting plates and are connected with the pull rods, limit support assemblies are arranged below the top blocks, and shearing plates are arranged in the top blocks.
2. The dynamic compression shear testing machine with floating system according to claim 1, characterized in that, The limit support assembly comprises a limit strip arranged outside the mounting plate, and an adaptive wheel is arranged below the top block corresponding to the limit strip.
3. The dynamic compression shear testing machine with floating system according to claim 2, characterized in that, The compression-shear testing machine body comprises a base, a lead screw is arranged at the corner above the base, a lifting cross beam is arranged on the lead screw, an upper pressing plate is arranged below the lifting cross beam, and a workbench is arranged above the base.
4. The dynamic compression shear testing machine with floating system according to claim 3, characterized in that, An oil source system box is further arranged on the placing table, triangularly designed notches are formed in the upper and lower end faces of the shearing plate and the lower end face of the upper pressing plate, and the notches on the shearing plate and the notches on the upper pressing plate are oppositely directed.