Electro-hydraulic servo dynamic compression-shear testing machine

Abstract

The utility model relates to the technical fields of compression and shear testing machine, especially to electro -hydraulic servo dynamic compression and shear testing machine, it not only improves the security of device, avoids the material to break and splashes the staff around, and conveniently positions the material, guarantees the accuracy of test, including support mechanism, still including protection mechanism, extrusion mechanism, positioning mechanism, moving mechanism and shearing mechanism, protection mechanism installs on the support mechanism and carries out the protection, extrusion mechanism installs on the support mechanism and carries out the extrusion to the material, positioning mechanism installs on the support mechanism and carries out the positioning to the material, moving mechanism installs on the support mechanism and drives shearing mechanism to move, shearing mechanism installs on the moving mechanism and carries out the shearing test to the material.

Description

Technical Field

[0001] This utility model relates to the technical field of compression and shear testing machines, and in particular to an electro-hydraulic servo dynamic compression and shear testing machine. Background Technology

[0002] Dynamic compression and shear testing machines all use hydraulic cylinders to control the up and down movement of the upper pressure plate. The upper pressure plate is connected to a load sensor, which is then fixed to the piston of the hydraulic cylinder. The movement of the piston of the hydraulic cylinder drives the movement of the upper pressure plate.

[0003] Existing electro-hydraulic servo dynamic compression and shear testing machines, such as the 2000-ton microcomputer-controlled electro-hydraulic servo dynamic compression and shear testing machine disclosed in utility model patent application number 202420495022.9, have the following main structure: an integrated base is set at the lower end of the testing machine, a horizontal shear loading mechanism is set above the integrated base, the integrated base is connected to four columns, a fixed crossbeam is mounted on the four columns, and a vertical hydraulic cylinder is installed in the middle of the fixed crossbeam; during use, the heavy-duty guide structure of the four columns ensures the stability of the vertical loading of the testing machine during operation, and the four sets of heavy-duty guide devices slide together with the upper pressure plate on the two double-layer inclined rib friction plate guide rails to prevent the horizontal force from being transmitted to the vertical sensor. The four double-layer inclined ribs will eliminate the lateral force brought by dynamic shearing during the operation of the testing machine.

[0004] However, most existing compression and shear testing machines lack corresponding protection. If the material breaks unexpectedly during the test, it can easily injure the surrounding staff. Moreover, when conducting the test, the material is usually placed directly on the base, and it is very troublesome to manually adjust the position of the material. Deviations in the placement position can easily affect the test results. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an electro-hydraulic servo dynamic compression and shear testing machine that not only improves the safety of the device and avoids material breakage and splashing that could injure nearby workers, but also facilitates material positioning and ensures the accuracy of the test.

[0006] This utility model discloses an electro-hydraulic servo dynamic compression and shear testing machine, which includes a support mechanism, a protective mechanism, a compression mechanism, a positioning mechanism, a moving mechanism, and a shearing mechanism. The protective mechanism is installed on the support mechanism for protection, the compression mechanism is installed on the support mechanism for compression of the material, the positioning mechanism is installed on the support mechanism for positioning the material, the moving mechanism is installed on the support mechanism for moving the shearing mechanism, and the shearing mechanism is installed on the moving mechanism for shearing the material. The operator places the material on the compression mechanism, then slides the protective mechanism for protection, the moving mechanism moves the shearing mechanism to adjust the left and right position of the material, the positioning mechanism limits the front and back position of the material, and then the compression and shearing mechanisms are used to perform a compression and shear test on the material.

[0007] Preferably, the support mechanism includes support legs, a protective box, and a controller. The bottom end of the support leg is connected to the ground, the bottom end of the protective box is connected to the top end of the support leg, the protective box has an internal cavity, and a feed port is opened on the front side of the protective box. The controller is installed in the cavity of the protective box and located on the left side. By setting up the protective box, material splashing is prevented, and the operator uses the controller to control the compression and shear test of the material.

[0008] Preferably, the protective mechanism includes a positioning frame, a protective door, explosion-proof glass, and two sets of handles. The positioning frame is installed at the feed inlet of the protective box, the protective door is slidably installed on the positioning frame, the explosion-proof glass is installed on the protective door, and both sets of handles are installed on the protective door. The operator operates the handles to slide the protective door to the left, making it convenient to place the test material into the compression mechanism. Then, the operator operates the handles to slide the protective door to the right, making it convenient to operate the controller to perform the compression-shear test on the material. The protective door prevents the material from flying forward and injuring people, and the two sets of explosion-proof glass make it convenient for the operator to observe the compression-shear test process.

[0009] Preferably, the extrusion mechanism includes a base, four sets of guide columns, a main hydraulic cylinder, and a pressing plate. The base is installed inside the cavity of the protective box and located on the right side. The bottom ends of the four sets of guide columns are connected to the top end of the base. The main hydraulic cylinder is installed on the protective box. The pressing plate is slidably installed on the four sets of guide columns and connected to the bottom end of the main hydraulic cylinder. The operator places the test material on the base. After positioning, the controller controls the main hydraulic cylinder to push the pressing plate down, and the pressing plate performs an extrusion test on the material.

[0010] Preferably, the pressing plate is also equipped with a load sensor; by setting the load sensor, it is convenient to detect the load pressure of the pressing plate on the test material, so as to ensure the accuracy of the test.

[0011] Preferably, the positioning mechanism includes a first servo motor, a dual-output shaft reducer, a drive shaft, a right-angle steering gear, two sets of bidirectional lead screws, two sets of positioning rods, and two sets of sealing sleeves. The first servo motor is mounted on the protective box. The output end of the first servo motor is connected to the input end of the dual-output shaft reducer. The output end of the dual-output shaft reducer is connected to the input end of the first set of bidirectional lead screws and the drive shaft. The output end of the drive shaft is connected to the input end of the right-angle steering gear. The output end of the right-angle steering gear is connected to the input end of the bidirectional lead screws. Two sets of positioning slots are opened on the base. Both sets of positioning rods are slidably installed in the positioning slots and are connected to the two sets of bidirectional lead screws through threaded transmission. The two sets of sealing sleeves are respectively installed on the two sets of bidirectional lead screws. When the first servo motor is started, the first servo motor drives the drive shaft to rotate through the dual-output shaft reducer. The dual-output shaft reducer drives the first set of bidirectional lead screws to rotate. The drive shaft drives the second set of bidirectional lead screws to rotate through the right-angle steering gear. The rotation of the two sets of bidirectional lead screws drives the two sets of positioning rods to move and position the front and rear sides of the test material. By setting two sets of sealing sleeves, the waste generated by the compression and shear test is prevented from affecting the transmission effect of the two sets of bidirectional lead screws.

[0012] Preferably, the moving mechanism includes two sets of guide rails, a telescopic sealing layer, a second servo motor, a reducer, and a lead screw. Both sets of guide rails are installed inside the cavity of the protective box. One end of the telescopic sealing layer is installed on the base. The second servo motor is installed on the protective box, and the output end of the second servo motor is connected to the input end of the reducer. The output end of the reducer is connected to the input end of the lead screw. The shearing mechanism is guided by the two sets of guide rails. The telescopic sealing layer is used to prevent the waste generated by the compression shearing test from affecting the transmission efficiency of the lead screw. The second servo motor is started, and the second servo motor drives the lead screw to rotate through the reducer. The lead screw drives the shearing mechanism to move.

[0013] Preferably, the shearing mechanism includes a slider, a secondary hydraulic cylinder, a lifting block, a shearing plate, a drive shaft, and a suction cup. The slider is slidably mounted on a guide rail and connected to the other end of the telescopic sealing layer. The slider has a lifting groove. The secondary hydraulic cylinder is mounted on the slider. The lifting block is slidably mounted in the lifting groove of the slider, and the bottom end of the secondary hydraulic cylinder is connected to the top end of the lifting block. The shearing plate is mounted on the lifting block, the drive shaft is mounted on the lifting block, and the suction cup is mounted on the drive shaft. The secondary hydraulic cylinder drives the lifting block to rise, and the drive shaft drives the suction cup to rotate so that the suction cup faces to the right. Then, the secondary hydraulic cylinder pushes the lifting block to fall, and the lead screw drives the slider to move to the right. The suction cup adsorbs the test material, and the left and right positions of the test material are adjusted. Then, the lead screw drives the slider to move to the left, the secondary hydraulic cylinder drives the lifting block to rise, and the drive shaft drives the suction cup to rotate so that the suction cup faces to the left. The secondary hydraulic cylinder pushes the lifting block to fall to the appropriate position, and the lead screw drives the slider and the shearing plate to move to the right to perform a shearing test on the test material.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the staff places the material on the extrusion mechanism, then the sliding protective mechanism is used for protection, the moving mechanism drives the shearing mechanism to move and adjust the left and right position of the material, the positioning mechanism limits the front and back position of the material, and then the extrusion mechanism and the shearing mechanism are used to perform a compression and shear test on the material. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of this utility model;

[0016] Figure 2 This is an isometric structural diagram of the support mechanism and protection mechanism of this utility model;

[0017] Figure 3 This is a cross-sectional isometric structural diagram of the extrusion mechanism and shearing mechanism of this utility model;

[0018] Figure 4 This is a partially enlarged cross-sectional isometric structural schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 5 This is a partially enlarged cross-sectional isometric structural diagram of the moving mechanism of this utility model.

[0020] The attached diagram is labeled as follows: 01, Support mechanism; 11, Support leg; 12, Protective box; 13, Controller; 02, Protective mechanism; 21, Positioning frame; 22, Protective door; 23, Explosion-proof glass; 24, Handle; 03, Extrusion mechanism; 31, Base; 32, Guide column; 33, Main hydraulic cylinder; 34, Pressing plate; 04, Positioning mechanism; 41, First servo motor; 42, Dual output shaft reducer; 43, Drive shaft; 44, Right-angle steering gear; 45, Bidirectional lead screw; 46, Positioning rod; 47, Sealing sleeve; 05, Moving mechanism; 51, Guide rail; 52, Telescopic sealing layer; 53, Second servo motor; 54, Reducer; 55, Lead screw; 06, Shearing mechanism; 61, Slider; 62, Auxiliary hydraulic cylinder; 63, Lifting block; 64, Shearing plate; 65, Drive shaft; 66, Suction cup. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] Example 1

[0023] This utility model discloses an electro-hydraulic servo dynamic compression and shear testing machine, comprising a support mechanism 01; it also includes a protective mechanism 02, a compression mechanism 03, a positioning mechanism 04, a moving mechanism 05, and a shearing mechanism 06. The protective mechanism 02 is mounted on the support mechanism 01 for protection; the compression mechanism 03 is mounted on the support mechanism 01 for compression of the material; the positioning mechanism 04 is mounted on the support mechanism 01 for positioning the material; the moving mechanism 05 is mounted on the support mechanism 01 and drives the shearing mechanism 06 to move; the shearing mechanism 06 is mounted on the moving mechanism 05 and performs shearing tests on the material; the support mechanism 01 includes support legs 1. 1. A protective box 12 and a controller 13 are provided. The bottom end of the support leg 11 is connected to the ground, and the bottom end of the protective box 12 is connected to the top end of the support leg 11. The protective box 12 has an internal cavity, and a feed inlet is opened on the front side of the protective box 12. The controller 13 is installed in the cavity of the protective box 12 and is located on the left side. The protective mechanism 02 includes a positioning frame 21, a protective door 22, an explosion-proof glass 23, and two sets of handles 24. The positioning frame 21 is installed at the feed inlet of the protective box 12. The protective door 22 is slidably installed on the positioning frame 21. The explosion-proof glass 23 is installed on the protective door 22. Both sets of handles 24 are installed on the protective door 22. Extruder Structure 03 includes a base 31, four sets of guide columns 32, a main hydraulic cylinder 33, and a pressing plate 34. The base 31 is installed inside the cavity of the protective box 12 and located on the right side. The bottom ends of the four sets of guide columns 32 are connected to the top ends of the base 31. The main hydraulic cylinder 33 is installed on the protective box 12. The pressing plate 34 is slidably installed on the four sets of guide columns 32 and connected to the bottom ends of the main hydraulic cylinder 33. A load sensor is also provided on the pressing plate 34. The positioning mechanism 04 includes a first servo motor 41, a dual-output shaft reducer 42, a transmission shaft 43, a right-angle steering gear 44, two sets of bidirectional lead screws 45, two sets of positioning rods 46, and two sets of sealing sleeves 47. 7. The first servo motor 41 is mounted on the protective box 12. The output end of the first servo motor 41 is connected to the input end of the dual output shaft reducer 42. The output end of the dual output shaft reducer 42 is connected to the input end of the first set of bidirectional lead screws 45 and the transmission shaft 43. The output end of the transmission shaft 43 is connected to the input end of the right angle steering gear 44. The output end of the right angle steering gear 44 is connected to the input end of the bidirectional lead screw 45. Two sets of positioning grooves are opened on the base 31. Two sets of positioning rods 46 are slidably installed in the positioning grooves and connected to the two sets of bidirectional lead screws 45 through threaded transmission. Two sets of sealing sleeves 47 are respectively installed on the two sets of bidirectional lead screws 45.During operation, the staff first places the test material on the base 31, then operates the handle 24 to slide the protective door 22 to the right, facilitating the operation of the controller 13 to perform a compression-shear test on the material. The protective door 22 prevents the material from splashing forward and injuring people. Two sets of explosion-proof glass 23 facilitate the staff's observation of the compression-shear test process. The protective box 12 prevents the material from splashing. The staff uses the controller 13 to control the compression-shear test on the material, starting the first servo motor 41. The first servo motor 41 drives the transmission shaft 43 to rotate through the dual output shaft reducer 42. The dual output shaft reducer 42 drives the first set of bidirectional lead screws 45 to rotate. The transmission shaft 43 drives the second set of bidirectional lead screws 45 to rotate through the right-angle deflector 44. The rotation of the two sets of bidirectional lead screws 45 drives the two sets of positioning rods 46 to move and position the front and rear sides of the test material. Two sets of sealing sleeves 47 prevent the waste generated during the compression-shear test from affecting the transmission effect of the two sets of bidirectional lead screws 45. After positioning, the controller 13 controls the main hydraulic cylinder 33 to push the pressing plate 34 down, and the pressing plate 34 performs a compression test on the material. ;

[0024] Example 2

[0025] like Figures 1 to 5As shown, the electro-hydraulic servo dynamic compression and shear testing machine of this utility model is based on Embodiment 1; the moving mechanism 05 includes two sets of guide rails 51, a telescopic sealing layer 52, a second servo motor 53, a reducer 54, and a lead screw 55. Both sets of guide rails 51 are installed in the cavity of the protective box 12. One end of the telescopic sealing layer 52 is installed on the base 31. The second servo motor 53 is installed on the protective box 12. The output end of the second servo motor 53 is connected to the input end of the reducer 54, and the output end of the reducer 54 is connected to the input end of the lead screw 55; the shearing mechanism 06 includes a slider 61, a secondary hydraulic cylinder 62, a lifting block 63, a shearing plate 64, a drive shaft 65, and a suction cup 66. The slider 61 is slidably installed on the guide rail 51, and the slider 61 is connected to the extension... The other end of the sealing layer 52 is connected to the slider 61, which has a lifting groove. The auxiliary hydraulic cylinder 62 is installed on the slider 61. The lifting block 63 is slidably installed in the lifting groove of the slider 61, and the bottom end of the auxiliary hydraulic cylinder 62 is connected to the top end of the lifting block 63. The shearing plate 64 is installed on the lifting block 63, the drive shaft 65 is installed on the lifting block 63, and the suction cup 66 is installed on the drive shaft 65. When it is working, firstly, the staff places the test material on the base 31, and then operates the handle 24 to slide the protective door 22 to the right side, so as to facilitate the operation of the controller 13 to perform the compression and shear test on the material. By setting the protective door 22, the material is prevented from flying forward and injuring people. By setting two sets of explosion-proof glass 23, the staff can easily observe the compression and shear test process. The protective box 12 prevents material from splashing. The operator uses the controller 13 to control the compression-shear test on the material. The auxiliary hydraulic cylinder 62 drives the lifting block 63 to rise, and the drive shaft 65 drives the suction cup 66 to rotate, making the suction cup 66 face to the right. Then, the auxiliary hydraulic cylinder 62 pushes the lifting block 63 down, activating the second servo motor 53. The second servo motor 53 drives the lead screw 55 to rotate via the reducer 54. The lead screw 55 drives the slider 61 to move to the right, and the suction cup 66 picks up the test material. The left and right positions of the test material are adjusted, and then the lead screw 55 drives the slider 61 to move to the left. The auxiliary hydraulic cylinder 62 drives the lifting block 63 to rise, and the drive shaft 65 drives the suction cup 66 to rotate, making the suction cup 66 face to the left. Simultaneously, the first servo motor 41 is activated. The dual-output shaft reducer 42 drives the transmission shaft 43 to rotate, which in turn drives the first set of bidirectional lead screws 45 to rotate. The transmission shaft 43 drives the second set of bidirectional lead screws 45 to rotate via a right-angle steering gear 44. The rotation of the two sets of bidirectional lead screws 45 drives the two sets of positioning rods 46 to move and position the front and rear sides of the test material. Two sets of sealing sleeves 47 are set to prevent the waste generated by the compression and shear test from affecting the transmission effect of the two sets of bidirectional lead screws 45. After positioning, the controller 13 controls the main hydraulic cylinder 33 to push the pressing plate 34 down. The pressing plate 34 performs a compression test on the material. The auxiliary hydraulic cylinder 62 pushes the lifting block 63 down to the appropriate position. The lead screw 55 drives the slider 61 and the shearing plate 64 to move to the right to perform a shear test on the test material.

[0026] The main hydraulic cylinder 33, the first servo motor 41, the dual output shaft reducer 42, the second servo motor 53, the reducer 54, and the auxiliary hydraulic cylinder 62 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An electro-hydraulic servo dynamic compression-shear testing machine, comprising a support mechanism (01); characterized in that, It also includes a protective mechanism (02), a squeezing mechanism (03), a positioning mechanism (04), a moving mechanism (05), and a shearing mechanism (06). The protective mechanism (02) is installed on the support mechanism (01) and provides protection. The squeezing mechanism (03) is installed on the support mechanism (01) and squeezes the material. The positioning mechanism (04) is installed on the support mechanism (01) and positions the material. The moving mechanism (05) is installed on the support mechanism (01) and drives the shearing mechanism (06) to move. The shearing mechanism (06) is installed on the moving mechanism (05) and performs a shearing test on the material.

2. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 1, characterized in that, The support mechanism (01) includes a support leg (11), a protective box (12) and a controller (13). The bottom end of the support leg (11) is connected to the ground, the bottom end of the protective box (12) is connected to the top end of the support leg (11), the protective box (12) has a cavity inside, the protective box (12) has a feed port on the front side, and the controller (13) is installed in the cavity of the protective box (12) and located on the left side.

3. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 2, characterized in that, The protective mechanism (02) includes a positioning frame (21), a protective door (22), an explosion-proof glass (23), and two sets of handles (24). The positioning frame (21) is installed at the feed inlet of the protective box (12). The protective door (22) is slidably installed on the positioning frame (21). The explosion-proof glass (23) is installed on the protective door (22). Both sets of handles (24) are installed on the protective door (22).

4. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 2, characterized in that, The extrusion mechanism (03) includes a base (31), four sets of guide columns (32), a main hydraulic cylinder (33) and a pressing plate (34). The base (31) is installed in the cavity of the protective box (12) and located on the right side. The bottom ends of the four sets of guide columns (32) are connected to the top end of the base (31). The main hydraulic cylinder (33) is installed on the protective box (12). The pressing plate (34) is slidably installed on the four sets of guide columns (32) and connected to the bottom end of the main hydraulic cylinder (33).

5. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 4, characterized in that, It also includes a load sensor installed on the pressing plate (34).

6. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 4, characterized in that, The positioning mechanism (04) includes a first servo motor (41), a dual-output shaft reducer (42), a transmission shaft (43), a right-angle steering gear (44), two sets of bidirectional lead screws (45), two sets of positioning rods (46), and two sets of sealing sleeves (47). The first servo motor (41) is mounted on the protective box (12). The output end of the first servo motor (41) is connected to the input end of the dual-output shaft reducer (42). The output end of the dual-output shaft reducer (42) is connected to the input end of the first set of bidirectional lead screws (45) and the transmission shaft (43). The output end of the transmission shaft (43) is connected to the input end of the right-angle steering gear (44). The output end of the right-angle steering gear (44) is connected to the input end of the bidirectional lead screw (45). Two sets of positioning grooves are opened on the base (31). The two sets of positioning rods (46) are slidably installed in the positioning grooves and connected to the two sets of bidirectional lead screws (45) through threaded transmission. The two sets of sealing sleeves (47) are respectively installed on the two sets of bidirectional lead screws (45).

7. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 4, characterized in that, The moving mechanism (05) includes two sets of guide rails (51), a telescopic sealing layer (52), a second servo motor (53), a reducer (54), and a lead screw (55). Both sets of guide rails (51) are installed in the cavity of the protective box (12). One end of the telescopic sealing layer (52) is installed on the base (31). The second servo motor (53) is installed on the protective box (12). The output end of the second servo motor (53) is connected to the input end of the reducer (54). The output end of the reducer (54) is connected to the input end of the lead screw (55).

8. The electro-hydraulic servo dynamic compression-shear testing machine as described in claim 7, characterized in that, The shearing mechanism (06) includes a slider (61), a secondary hydraulic cylinder (62), a lifting block (63), a shearing plate (64), a drive shaft (65), and a suction cup (66). The slider (61) is slidably mounted on the guide rail (51), and the other end of the slider (61) is connected to the telescopic sealing layer (52). The slider (61) has a lifting groove. The secondary hydraulic cylinder (62) is mounted on the slider (61). The lifting block (63) is slidably mounted in the lifting groove of the slider (61), and the bottom end of the secondary hydraulic cylinder (62) is connected to the top end of the lifting block (63). The shearing plate (64) is mounted on the lifting block (63). The drive shaft (65) is mounted on the lifting block (63). The suction cup (66) is mounted on the drive shaft (65).

Images