CN115855631A - Electro-hydraulic servo press-shear experimental device - Google Patents
Electro-hydraulic servo press-shear experimental device Download PDFInfo
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- CN115855631A CN115855631A CN202310199099.1A CN202310199099A CN115855631A CN 115855631 A CN115855631 A CN 115855631A CN 202310199099 A CN202310199099 A CN 202310199099A CN 115855631 A CN115855631 A CN 115855631A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses an electro-hydraulic servo compression shear experimental device which comprises a lower pressing plate, an elastic cushioning mechanism and a lower pressing plate, wherein a rotating shaft is rotatably arranged on the side wall of the lower pressing plate and rotates when the lower pressing plate moves up and down; in the technical scheme, the electro-hydraulic servo pressure shear experimental device provided by the invention has the advantages that through the matching of the rotating shaft and the cushioning mechanism, the strong vibration generated when the material block of the pressure shear experimental device is broken is cushioned, the resonance is avoided, the service life of the pressure shear experimental device is prolonged, meanwhile, the cushioning mechanism also converts the cushioning treatment of the lower pressing plate into the cushioning treatment of the rotating shaft, and the rotating shaft needs to rotate when moving up and down, so that the cushioning is only needed to be performed when the rotating shaft rotates violently, the whole cushioning process is simplified, and the cushioning mechanism can provide a similar cushioning scheme for two test modes.
Description
Technical Field
The invention relates to a compression shear experiment technology, in particular to an electro-hydraulic servo compression shear experiment device.
Background
In order to test the compressive strength of parts made of various materials under a preset pressure, a common compression-shear experimental device is used for testing the mechanical property of the parts, namely a universal testing machine, the most common universal testing machine has two types of lever swing type and oil pressure swing type, is a material testing machine integrating the functions of stretching, bending, compression, shearing, ring stiffness and the like, and is ideal detection equipment for departments such as industrial and mining enterprises, scientific research units, universities and colleges, engineering quality supervision stations and the like.
For example, a universal testing machine with application publication No. CN111766143A and application publication No. 10/13/2020/year aims to solve the problems that a clamp of the universal testing machine before improvement is inconvenient to replace and detection efficiency is affected. The clamping device comprises a clamping mechanism, the clamping mechanism comprises a sheave assembly, the sheave assembly comprises a sheave and a drive plate for stirring the sheave to rotate intermittently, a plurality of clamps with different specifications are detachably arranged on the sheave, and each clamp is arranged corresponding to one guide groove of the sheave; the clamping device further comprises a fixing mechanism, the fixing mechanism can fix the grooved wheel, and when the fixing mechanism fixes the grooved wheel, the clamp close to the fixing mechanism is located at the center of the movable plate. This application has the anchor clamps of being convenient for and changes, promotes detection efficiency's effect.
If the authorization notice number is CN112710538B, and the authorization notice date is 09 and 23 in 2022, the electronic universal testing machine comprises a frame, a movable cross beam connected to the frame in a sliding manner and a driving mechanism for driving the movable cross beam to slide; actuating mechanism includes the lead screw of two parallels movable cross beam slip directions, with screw connection's belt drive group and connect in the servo motor of frame, belt drive group includes that two the same driven pulleys and diameter are greater than driven pulleys's middle band pulley, the equal coaxial fixed connection of one end of lead screw is one driven pulleys, middle band pulley is located between the driven pulleys and three the central axis is located the coplanar, middle band pulley and driven pulleys are located the coplanar, middle band pulley and driven pulleys cover are equipped with a third hold-in range, the both sides that middle band pulley carried on the back mutually all mesh with the third hold-in range, servo motor drive middle band pulley rotates. This application has the life's of promotion lead screw effect.
However, when the mechanical property of the material block is tested and the material block moves to the limit state, the material block is broken, and the whole compression-shear experimental device loses support instantly to generate huge pressure difference after the material block is broken.
Disclosure of Invention
The invention aims to provide an electro-hydraulic servo press-shear experimental device to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides an experimental apparatus is cut to servo pressure of electricity liquid, includes the holding down plate, it is provided with the pivot to rotate on the holding down plate side jade, the pivot takes place to rotate when holding down plate up-and-down motion, still establishes the epaxial elasticity bradyseism mechanism in pivot including the cover, the experimental stroke extrusion of holding down plate's pushing down elasticity bradyseism mechanism.
In a preferred embodiment of the present invention, the lower pressing plate is connected to a moving plate, and the movement of the moving plate drives the lower pressing plate to move.
In a preferred embodiment of the present invention, the movable plate is slidably connected to a plurality of limiting columns, and a workbench is connected between the limiting columns.
As a preferred embodiment of the present invention, the present invention further comprises a driving unit for driving the moving plate to move in the vertical direction.
In a preferred embodiment of the present invention, a pressure sensor is disposed on the lower platen, and is used for detecting a real-time pressure on the lower platen.
In a preferred embodiment of the present invention, a rotating gear is fixedly disposed at an end of the rotating shaft away from the lower platen.
As a preferred embodiment of the present invention, the workbench is connected with a mounting frame, and a sliding groove is formed in the mounting frame and used for further limiting the vertical movement of the rotating shaft.
As a preferred embodiment of the present invention, a rack is disposed in the sliding groove, the rotating shaft is slidably disposed in the sliding groove, the rotating gear and the rack are engaged with each other, and when the rotating shaft slides in the sliding groove, the rack drives the rotating gear to rotate.
As a preferred embodiment of the present invention, a fixing plate is disposed on the worktable, and the fixing plate is used for placing a material block.
In a preferred embodiment of the present invention, the mounting frame is slidably inserted through the moving plate.
In the technical scheme, the electro-hydraulic servo press-shear experimental device provided by the invention has the advantages that through the matching of the rotating shaft and the cushioning mechanism, the strong pressure difference of the press-shear experimental device when the material block is broken is buffered, resonance is avoided, the service life of the press-shear experimental device is prolonged, meanwhile, the cushioning mechanism also converts the cushioning treatment of the lower pressing plate into the cushioning treatment of the rotating shaft, and the rotating shaft needs to rotate when moving up and down, so that the cushioning is only needed to be carried out when the rotating shaft rotates violently, the whole cushioning process is simplified, and the cushioning mechanism can provide a similar cushioning scheme for two test modes.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective view of the present invention.
FIG. 3 is an enlarged view of a portion of FIG. 2 taken at X in accordance with the present invention.
Fig. 4 is a schematic view of the structure inside the circular mandrel of the present invention.
Fig. 5 is a schematic structural view between the rotating shaft and the blocking unit according to the present invention.
Fig. 6 is a sectional view between the centrifugal moving unit and the blocking unit according to the present invention.
FIG. 7 is an enlarged view of a portion of the invention at Y in FIG. 6.
Fig. 8 is a schematic partial perspective view of a barrier unit according to the present invention.
Fig. 9 is a partial perspective view of the centrifugal movement unit of the present invention.
Fig. 10 is a schematic view showing the structure between the circular mandrel and the cleaning unit according to the present invention.
Description of reference numerals:
1. a lower pressing plate; 11. moving the plate; 12. a limiting column; 13. a work table; 2. a rotating shaft; 21. a rotating gear; 22. a fixing frame; 23. a rack; 3. an elastic cushioning mechanism; 31. a working barrel; 32. rotating the circular plate; 33. a centrifugal motion unit; 331. an elastic balancing weight; 332. a limiting chute; 333. a limiting rod; 334. a limiting spring; 34. a blocking unit; 341. a connecting shaft; 342. a blocking block; 343. adsorbing a magnetic block; 344. a positioning magnetic block; 345. a drive rod; 347. installing a spring; 346. driving the rod; 4. a fixing plate; 5. a detachable block; 6. a cleaning unit; 61. installing a shaft; 62. installing a frame; 63. a first bevel gear; 64. a second bevel gear; 65. a driving gear; 66. a driven gear; 67. and cleaning the rod.
Detailed description of the preferred embodiments
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 10, the electro-hydraulic servo compression shear experimental apparatus provided by the embodiment of the invention comprises a lower pressing plate 1, a rotating shaft 2 is rotatably arranged on a side wall of the lower pressing plate 1, the rotating shaft 2 rotates when the lower pressing plate 1 moves up and down, and an elastic cushioning mechanism 3 sleeved on the rotating shaft 2, wherein the elastic cushioning mechanism 3 is extruded by a downward pressing experimental stroke of the lower pressing plate 1.
Specifically, in this embodiment, the lower pressure plate 1 is driven by hydraulic pressure to press the extruded material block for an experiment, the lower pressure plate 1 is further provided with various mechanical sensors required by the experimental device, the experimental device further comprises a central processing unit and a display device, and data transmitted by the mechanical sensors are processed by the central processing unit and fed back by the display device; preferably, this experimental apparatus still includes fixed plate 4, fixed plate 4 is used for placing the material piece, fixed plate 4 sets up for corresponding the cooperation with holding down plate 1, above being prior art, does not give unnecessary details. The elastic cushioning mechanism 3 is used for applying pressure to the material block and extruding the elastic cushioning mechanism 3 through the relative movement between the lower pressing plate 1 and the fixing plate 4, the real-time pressure is measured through the mechanical sensor, when the material block is crushed, the elastic cushioning mechanism 3 is used for limiting and cushioning the lower pressing plate 1, resonance is avoided, the service life of the compression shear experimental device is prolonged, meanwhile, the cushioning mechanism 3 also converts the cushioning treatment of the lower pressing plate 1 into cushioning treatment on the rotating shaft 2, and the rotating shaft 2 needs to rotate during up-and-down movement, so that only the cushioning is needed when the rotating shaft 2 rotates violently, and the whole cushioning process is simplified; more preferably, the middle parts of the lower pressure plate 1 and the fixed plate 4 are respectively provided with a detachable block 5, after the detachable blocks 5 are detached, a clamping device can be installed in the detachable blocks, the detachable blocks 5 are also used for keeping a relatively complete plane on the opposite surfaces of the lower pressure plate 1 and the fixed plate 4, the clamping devices are used for clamping two ends of a material block, when the lower pressure plate 1 and the fixed plate 4 move away from each other, the clamping devices on two sides are synchronously separated and drive the material block to stretch, when the material block is broken, the lower pressure plate 1 is limited and subjected to buffering treatment through the elastic buffering mechanism 3, resonance is avoided, the buffering mechanism can provide similar buffering schemes for two different test modes, the utilization rate of the device is improved, and meanwhile, the mechanical buffering structure can also ensure the stability of the experimental device during operation; one end of the rotating shaft 2, which is far away from the lower pressing plate 1, is fixedly provided with a rotating gear 21; the workbench 13 is connected with a fixed frame 22, a sliding groove is formed in the fixed frame 22, a rack 23 is arranged in the sliding groove, the rotating shaft 2 is arranged in the sliding groove in a sliding manner, the rotating gear 21 and the rack 23 are meshed with each other, and when the rotating shaft 2 slides in the sliding groove, the rack 23 drives the rotating gear 21 to rotate; when the rotating shaft 2 moves up and down in the vertical direction, the rotating gear 21 moves up and down in the vertical direction along with the rotating shaft, and the rotating gear 21 and the rack 23 are in a meshed state, so that the rotating gear 21 is forced to rotate when moving up and down, the rotating shaft 2 rotates when moving in the vertical direction, and a working foundation is provided for the operation of the elastic cushioning mechanism 3.
Further, the elastic cushioning mechanism 3 further comprises a working cylinder 31, two ends of the working cylinder 31 are through, the working cylinder 31 is fixedly connected with the outer side wall of the lower pressing plate 1 through a connecting block, two ends of the working cylinder 31 are both rotatably provided with rotating circular plates 32, the rotating shaft 2 is through connected to the rotating circular plates 32, centrifugal movement units 33 are further arranged on the rotating circular plates 32, and the centrifugal movement units 33 can work by utilizing centrifugal force when the rotating shaft 2 moves violently; the centrifugal moving unit 33 includes two elastic weight blocks 331 rotatably disposed on the rotating circular plate 32, obviously, optionally, the centrifugal moving unit 33 has multiple groups, preferably two groups, and is disposed oppositely, each group includes two elastic weight blocks 331, when the movable end face of the elastic weight block 331 collides with the blocking unit 34 rapidly, the elastic weight blocks 331 on both sides can be stressed uniformly, which is beneficial to stabilizing the movement of the rotating shaft 2 and the rotating circular plate 32; the elastic balancing weight 331 is made of high-density material, preferably lead or cast iron, the larger the weight is, the larger the rotation generated kinetic energy is, the kinetic energy comes from the lower pressing plate 1, so the larger the kinetic energy is, the better the buffering effect of the lower pressing plate 1 is, thereby providing better cushioning effect, and one end of the elastic balancing weight 331 far away from the rotation center is further provided with an elastic gasket for buffering the impact of the elastic balancing weight 331, the two elastic balancing weights 331 are oppositely arranged, the elastic balancing weight 331 has elasticity and is integrally arc-shaped, a square groove is arranged on the movable end of the elastic balancing weight 331 far away from the rotation end, a limit chute 332 is connected in the square groove, the limit chute 332 is arc-shaped, the position of the center of the arc-shaped circle coincides with the rotation center of the elastic balancing weight 331, the centrifugal movement unit 33 further comprises two connecting blocks installed on the rotation circular plate 32, the connecting block is provided with a limiting rod 333 through a limiting spring 334, the limiting rod 333 is slidably mounted in a limiting sliding groove 332, a connecting spring is further connected between the limiting rod 333 and the limiting sliding groove 332, the swing amplitude of the elastic balancing weight 331 can be properly increased through the cooperation between the limiting rod 333, the limiting sliding groove 332 and the connecting spring, when centrifugal motion occurs, the movable end of the elastic balancing weight 331 rotates outwards and enables the limiting rod 333 to slide in the limiting sliding groove 332, the connecting spring is further extruded when the limiting rod 333 slides in the limiting sliding groove 332, meanwhile, the limiting rod 333 further drives the limiting spring 334 to stretch, the limiting spring 334 is used for limiting the position of the limiting rod 333, the limiting spring 334 can further drive the elastic balancing weight 331 to reset after the motion, and the inner wall of the working barrel 31 is further provided with a plurality of blocking units 34, the blocking unit 34 is used for limiting and cushioning the elastic balancing weight 331 which generates centrifugal motion; when the lower pressing plate 1 moves downwards, the rotating shaft 2 moves downwards along with the lower pressing plate and the rotating shaft 2 also rotates, when the lower pressing plate 1 descends normally and does not vibrate, the rotating shaft 2 rotates at a constant speed and drives the rotating circular plate 32 to rotate uniformly, at this time, in a normal state, the centrifugal motion unit 33 does not rotate centrifugally and the elastic balancing weight 331 does not contact with the blocking unit 34 under the action of the limiting spring 334, when the lower pressing plate 1 extrudes and finally crushes the material block, the lower pressing plate 1 has a strong trend of moving downwards, at this time, under the action of centrifugal force, the movable ends of the two elastic balancing weights 331 move away from the rotating shaft 2 and drive the limiting rod 333 to slide on the connecting block, at this time, the sliding shaft 335 also slides in the limiting sliding chute 332 and pushes the connecting spring to be compressed, and further, elastic balancing weight 331 moves to and blocks the position that unit 34 contacted, the expansion end terminal surface of one of them elastic balancing weight 331 collides with blocking unit 34 rapidly, consequently suitable elastic buffer can be carried out to because elastic balancing weight 331 self has certain elasticity, block gentle shock processing to elastic balancing weight 331 through blocking unit 34, another elastic balancing weight 331 is because the restriction of rotation direction, its arc side earlier with block unit 34 contact and do not play and block and the bradyseism effect, when violent vibrations appear in holding down plate 1, can turn into violent upper and lower vibrations into the rotation of equal range through pivot 2, this elasticity bradyseism mechanism 3 can effectually alleviate violent motion of pivot 2 and then alleviate holding down plate 1's vibrations, simultaneously can also prevent that holding down plate 1 downward motion range is too big.
Further, the blocking unit 34 includes a connecting shaft 341 rotatably mounted on an inner wall of the working cylinder 31, the connecting shaft 341 is parallel to a rotation central axis of the elastic weight block 331, a blocking block 342 is fixedly mounted on the connecting shaft 341, the blocking block 342 is a curved bar-shaped component, both sides of the blocking block 342 are blocking parts, two sides of the blocking block 342 near one end of the working cylinder 31 are respectively mounted with an adsorbing magnetic block 343, two positioning magnetic blocks 344 are connected on an arc-shaped inner wall of the working cylinder 31, a certain distance is provided between the two positioning magnetic blocks 344, the two positioning magnetic blocks 344 and the two adsorbing magnetic blocks 343 are in one-to-one correspondence, only the corresponding positioning magnetic blocks 344 and adsorbing magnetic blocks 343 are attached and adsorbed together, when the adsorbing magnetic blocks 343 are in contact with the positioning magnetic blocks 344, the adsorbing magnetic blocks 343 can be completely attached to the positioning magnetic blocks 344, and the limiting effect of the positioning magnetic blocks 344 is enhanced; when the corresponding positioning magnetic block 344 and the magnetic adsorbing block 343 are attached and adsorbed together, two blocking modes, namely a push-down blocking mode and a pull-up blocking mode, are corresponded; when the pressing-down blocking mode is performed, one of the magnetic adsorbing blocks 343 is attached to the corresponding magnetic positioning block 344, and the connecting shaft 341 is forced to rotate by a proper angle and the blocking block 342 is inclined to one side, that is, the blocking block 342 is driven to rotate by a proper angle and the corresponding blocking part moves towards the direction close to the elastic balancing weight 331, when the material block is crushed, one of the elastic balancing weights 331 rotates outwards under the action of centrifugal force and contacts with the blocking part of the blocking block 342 at the time, and the blocking block 342 can block and buffer the elastic balancing weight 331 at the time, so that the pressing-down pressing plate 1 in a pressing-down state can be blocked and buffered in real time, and adverse effects caused by sudden crushing of the material block can be prevented; when the blocking mode is pulled up, the other magnetic adsorbing block 343 is attached to the corresponding magnetic positioning block 344, the connecting shaft 341 rotates in the opposite direction by a proper angle and synchronously drives the blocking block 342 to rotate in the opposite direction by a proper angle, the blocking block 342 inclines towards the other side at the moment, so that the blocking part corresponding to the blocking block 342 moves towards the direction close to the elastic balancing weight 331, the other elastic balancing weight 331 rotates outwards under the action of centrifugal force and contacts with the blocking part of the blocking block 342 at the moment, the blocking block 342 at the moment can block and buffer the pressing plate 1 in the pulled-up state in real time, and the bad influence caused by the sudden breaking of the material block is prevented; two blocking modes of the blocking unit 34, namely a pressing blocking mode and a pulling-up blocking mode, can be limited through the rotating directions of the connecting shaft 341 and the blocking block 342, and the two modes are matched with the two corresponding elastic balancing weights 331, so that the whole experimental device is protected in real time, buffering and limiting treatment can be performed when a material block is crushed or broken, and the utilization rate of the experimental device is increased.
In a further embodiment, the blocking unit 34 further includes a driving rod 345 installed on a side of the blocking block 342 away from the elastic weight 331, wherein the thickness of the blocking block 342 is greater than that of the elastic weight 331 and the driving rod 345 and the elastic weight 331 cannot contact with each other, a plurality of driving rods 346 are rotatably installed on an outer sidewall of a section of the rotary shaft 2 located in the working cylinder 31, the driving rod 345 and the driving rods 346 are located on the same horizontal plane, an installation spring 347 is connected between a rotating end of the driving rods 346 and an outer wall of the rotary shaft 2, and in an initial state, the installation spring 347 pushes the rotating end of the driving rods 346 away from the outer sidewall of the rotary shaft 2; when the rotating shaft 2 moves downwards and rotates synchronously, the driving rod 346 moves synchronously along with the rotating shaft and contacts with the driving rod 345, the driving rod 346 pushes the driving rod 345 to move and enables one of the absorbing magnetic blocks 343 on the blocking block 342 to be attached to the corresponding positioning magnetic block 344, so that the blocking unit 34 is in a downward pressing blocking mode when the rotating shaft 2 moves downwards, after the blocking unit 34 is in the downward pressing blocking mode, the rotating shaft 2 is still in a rotating state, because the blocking block 342 is limited by the positioning magnetic block 344 at this time, the driving rod 345 cannot push the driving rod 345 to continue moving when the driving rod 345 continues to contact with the driving rod 346, only the rotating end of the driving rod 346 moves to force the mounting spring 347 to be compressed, so that the rotating shaft 2 can rotate smoothly, the design is that the distance between the rotating end of the driving rod 346 and the outer side wall of the rotating shaft 2 can be properly extended and contracted to cooperate with the mutual switching between the downward pressing blocking mode and the upward pulling blocking mode, and specifically, the driving rod 346 has enough length to contact with the other side under the downward pressing blocking mode and the upward pulling mode to switch the driving rod 342 smoothly; when the rotating shaft 2 moves upward and rotates reversely synchronously, the driving rod 346 moves synchronously and contacts with the driving rod 345, the driving rod 346 pushes the driving rod 345 to move and enables the other absorbing magnetic block 343 on the blocking block 342 to be attached to the corresponding positioning magnetic block 344, and further the blocking unit 34 is in a pull-up blocking mode when the rotating shaft 2 moves upward, in the mode, the driving rod 345 can push the driving rod 346 to rotate greatly, and the driving rod 346 can be attached to the side wall of the rotating shaft 2 reversely at the limit position; through the cooperation among the rotating shaft 2, the driving rod 345 and the driving rod 346, the automatic switching between the push-down blocking mode and the pull-up blocking mode can be realized, so that the blocking unit 34 can work more quickly and efficiently.
Still further, the experimental device is further provided with a cleaning unit 6, the cleaning unit 6 can clean the scraps adsorbed on the surface of the lower platen 1 after crushing the material block, the cleaning unit 6 can utilize the mutual switching between the pressing blocking mode and the pulling blocking mode to clean the scraps adsorbed on the surface of the lower platen 1, the cleaning unit 6 comprises an installation shaft 61, the installation shaft 61 penetrates through the outer wall of the working cylinder 31 to be connected with one of the connection shafts 341, the connection shaft 341 and the rotating shaft 2 are in the same vertical plane, the side wall of the working cylinder 31 is further fixedly provided with an installation frame 62, the installation shaft 61 extends into the installation frame 62, one end of the installation shaft 61 located in the installation frame 62 is connected with a first bevel gear 63, the installation frame 62 is further rotatably provided with a penetrating shaft, one end of the penetrating shaft located in the installation frame 62 is connected with a second bevel gear 64, the first bevel gear 63 and the second bevel gear 64 are engaged with each other, a driving gear 65 is further mounted at one end of the penetrating shaft away from the mounting frame 62, a driven gear 66 is further rotatably mounted on the arc-shaped side wall of the working cylinder 31, the driving gear 65 and the driven gear 66 are engaged with each other, the diameter of the driving gear 65 is larger than that of the driven gear 66, that is, under the condition that the driving gear 65 and the driven gear 66 rotate for the same time, the rotating distance of the driven gear 66 is larger, the rotating distance of the mounting shaft 61 can be properly enlarged through the engagement between the driving gear 65 and the driven gear 66, a cleaning rod 67 is further mounted on the surface of the driven gear 66, when the blocking unit 34 is in the pressing-down blocking mode or the pulling-up blocking mode, the cleaning rod 67 does not contact with the pressing plate 1, that is deviated from the coverage of the bottom end of the pressing plate 1, and the cleaning rod 67 can sweep the bottom end of the pressing plate 1 when the driving gear 65 and the driven gear 66 rotate, thereby cleaning broken scraps possibly adsorbed on the lower pressure plate 1; during specific work, when the blocking unit 34 is in a state of switching between a push-down blocking mode and a pull-up blocking mode, the driving rod 346 pushes the driving rod 345 to move, so that the blocking block 342 gradually deflects to the other side, the movement of the blocking block 342 drives the connecting shaft 341 to rotate, the connecting shaft 341 rotates to rotate the mounting shaft 61 and drive the first bevel gear 63 to move, the rotation direction is converted through the first bevel gear 63 and the second bevel gear 64, the penetrating shaft rotates, the penetrating shaft drives the driving gear 65 and the driven gear 66 to rotate while rotating, the driven gear 66 rotates to drive the cleaning rod 67 to sweep from the bottom end of the lower pressing plate 1 to clean the bottom end of the lower pressing plate 1.
Obviously, on the basis of connecting axle 341, can make and block unit 34 automatic switch and push down and block the mode and pull up and block the mode, can all carry out bradyseism and spacing processing when crushing or breaking the material piece, still improved the whole variety that uses of device when effectively protecting this experimental apparatus, the use scene has been richened, and then make the holistic application degree of device obtain improving, simultaneously, utilize connecting axle 341's motion to the clearance to 1 bottom of holding down plate when can also realizing two mode switches, the condition appearance that the experiment was disturbed to the sweeps probably exists in holding down plate 1 bottom when having avoided the re-experiment.
In another embodiment provided by the present invention, the lower pressing plate 1 is connected to the moving plate 11, the movement of the moving plate 11 drives the lower pressing plate 1 to move, the moving plate 11 is slidably connected to a plurality of limiting columns 12, the movement of the moving plate 11 is limited by the limiting columns 12, so as to limit the movement of the lower pressing plate 1, and a workbench 13 is connected between the limiting columns 12.
In another embodiment of the present invention, the present invention further includes a driving unit, where the driving unit is used to drive the moving plate 11 to move in the vertical direction, so as to make the lower pressing plate 1 move in the vertical direction.
In another embodiment provided by the present invention, a pressure sensor is disposed on the lower pressure plate 1, and is used for detecting real-time pressure on the lower pressure plate 1.
In another embodiment provided by the present invention, a fixing plate 4 is disposed on the working platform 13, and the fixing plate 4 is used for placing a material block.
In another embodiment of the present invention, the fixed frame 22 slides through the moving plate 11, so as to avoid the fixed frame 22 from affecting the movement of the moving plate 11.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The electro-hydraulic servo compression shear experimental device comprises a lower pressing plate and is characterized in that a rotating shaft is arranged on the side wall of the lower pressing plate in a rotating mode, the rotating shaft rotates when the lower pressing plate moves up and down, the electro-hydraulic servo compression shear experimental device further comprises an elastic cushioning mechanism arranged on the rotating shaft in a sleeved mode, and the elastic cushioning mechanism is extruded by the lower pressing experimental stroke of the lower pressing plate.
2. The electro-hydraulic servo press-shear experimental device as claimed in claim 1, wherein the lower pressure plate is connected to a moving plate, and the movement of the moving plate drives the lower pressure plate to move.
3. The electro-hydraulic servo press-shear experimental device as claimed in claim 2, wherein a plurality of limiting columns are slidably connected to the moving plate, and a workbench is connected between the limiting columns.
4. The electro-hydraulic servo press-shear experimental device as claimed in claim 3, further comprising a driving unit for driving the moving plate to move in a vertical direction.
5. The electro-hydraulic servo press-shear experimental device as claimed in claim 2, wherein a pressure sensor is arranged on the lower pressure plate and used for detecting real-time pressure on the lower pressure plate.
6. The electro-hydraulic servo press-shear experimental device as claimed in claim 1, wherein a rotary gear is fixedly arranged at one end of the rotating shaft away from the lower pressure plate.
7. The electro-hydraulic servo press-shear experimental device as claimed in claim 3, wherein a mounting frame is connected to the workbench, a sliding groove is formed in the mounting frame, and the sliding groove is used for further limiting the vertical movement of the rotating shaft.
8. The electro-hydraulic servo pressure shear experimental device as claimed in claim 7, wherein a rack is disposed in the sliding groove, the rotating shaft is slidably disposed in the sliding groove, the rotating gear and the rack are engaged with each other, and when the rotating shaft slides in the sliding groove, the rack drives the rotating gear to rotate.
9. The electro-hydraulic servo compression shear experimental device as claimed in claim 3, wherein a fixing plate is arranged on the workbench and used for placing a material block.
10. The electro-hydraulic servo press-shear experimental device as claimed in claim 7, wherein the mounting frame slides through the moving plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310199099.1A CN115855631B (en) | 2023-03-03 | 2023-03-03 | Electrohydraulic servo pressure shear experimental device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310199099.1A CN115855631B (en) | 2023-03-03 | 2023-03-03 | Electrohydraulic servo pressure shear experimental device |
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| CN115855631A true CN115855631A (en) | 2023-03-28 |
| CN115855631B CN115855631B (en) | 2023-07-04 |
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| CN212844656U (en) * | 2020-09-06 | 2021-03-30 | 上海鸿锐智能电器有限公司 | Shock absorption and isolation device of compression-shear testing machine |
| CN216518714U (en) * | 2021-10-28 | 2022-05-13 | 南京风机厂有限公司 | Centrifugal fan with buffering antidetonation structure |
| CN114959645A (en) * | 2021-08-03 | 2022-08-30 | 江苏汉印机电科技股份有限公司 | High-speed large-area CVD equipment based on SiC power device |
| CN217654870U (en) * | 2022-04-13 | 2022-10-25 | 济南新路昌试验机有限公司 | Damping device for electro-hydraulic servo universal testing machine |
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2023
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| JPS62184247A (en) * | 1986-02-06 | 1987-08-12 | Nhk Spring Co Ltd | Damper gear |
| EP2410193A2 (en) * | 2010-07-22 | 2012-01-25 | Tai-Her Yang | Centrifugal Force Cutting Off Or Combined With Sliding Damping Type Clutch Actuated By Torque |
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| CN109520864A (en) * | 2019-01-25 | 2019-03-26 | 河南交院工程技术有限公司 | A kind of integral hydraulic pressure-shear test machine |
| CN109580392A (en) * | 2019-01-25 | 2019-04-05 | 河南交院工程技术有限公司 | A kind of hydraulic pressure-shear test machine |
| CN111912722A (en) * | 2020-08-10 | 2020-11-10 | 郑光辉 | Plate-shaped metal shearing testing device |
| CN212844656U (en) * | 2020-09-06 | 2021-03-30 | 上海鸿锐智能电器有限公司 | Shock absorption and isolation device of compression-shear testing machine |
| CN114959645A (en) * | 2021-08-03 | 2022-08-30 | 江苏汉印机电科技股份有限公司 | High-speed large-area CVD equipment based on SiC power device |
| CN216518714U (en) * | 2021-10-28 | 2022-05-13 | 南京风机厂有限公司 | Centrifugal fan with buffering antidetonation structure |
| CN217654870U (en) * | 2022-04-13 | 2022-10-25 | 济南新路昌试验机有限公司 | Damping device for electro-hydraulic servo universal testing machine |
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| CN115855631B (en) | 2023-07-04 |
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