A device for testing the compressive strength of material test blocks

Abstract

The present invention belongs to the field of strength testing technology, and specifically discloses a device for testing the compressive strength of material test blocks, comprising an opening and closing base plate mechanism, a lifting assembly, an automatic slag falling mechanism, a reciprocating roller brush mechanism, and a lifting and extrusion guide mechanism, wherein the opening and closing base plate mechanism is arranged on the lifting assembly, the lifting assembly is arranged on the lifting and extrusion guide mechanism, the automatic slag falling mechanism is arranged on the opening and closing base plate mechanism, and the reciprocating roller brush mechanism is arranged on the opening and closing base plate mechanism. The present invention can leave a channel for the slag to fall by separating the transverse moving block; the lifting screw can automatically drive the bevel gear to rotate when rotating, and the rotation of the driven shaft can pull the flexible steel plate back on the one hand, and can also drive the roller brush drum to rotate on the other hand, thereby sweeping off the slag accumulated on the flexible steel plate.

Description

Technical Field

[0001] The invention belongs to the technical field of strength detection, and in particular relates to a device for detecting the compressive strength of a material test block. Background Art

[0002] Compressive strength tests of materials such as concrete, cement, ceramics, and glass often require the materials to be made into standard test blocks, where pressure is applied to explore their compressive limits and other properties. Since most of these materials are brittle, they produce residue when crushed, and this residue needs to be cleaned before the next test. Otherwise, the debris may remain between the test block and the base plate, affecting the stress distribution of the next test block.

[0003] The rapid cleaning of debris is mainly divided into two categories: "blowing" and "suction". Among them, "suction" is not suitable for cleaning high-density solid residues, while "blowing" may cause debris to splash. If it enters the transmission part, it will cause damage to the equipment.

[0004] Other manual cleaning methods are time-consuming and labor-intensive, seriously affecting the speed of the test.

[0005] Therefore, the present invention proposes a technical solution for cleaning debris by stirring and sweeping. Summary of the Invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a device for detecting the compressive strength of material test blocks; the transverse moving block can be pushed to move laterally through the manual opening and closing control component, and the transverse moving block can support the flexible steel plate when pressure is applied. When descending, the separation of the transverse moving block can leave a channel for the falling of debris; the lifting screw can automatically drive the bevel gear to rotate when rotating, and the rotation of the driven shaft can pull the flexible steel plate back on the one hand, and on the other hand, it can also drive the roller brush to rotate, thereby sweeping off the debris accumulated on the flexible steel plate.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a device for detecting the compressive strength of material test blocks, including an opening and closing base plate mechanism, a lifting component, an automatic slag falling mechanism, a reciprocating roller brush mechanism and a lifting and extrusion guide mechanism, the opening and closing base plate mechanism is arranged on the lifting component, the lifting component is arranged on the lifting and extrusion guide mechanism, the automatic slag falling mechanism is arranged on the opening and closing base plate mechanism, and the reciprocating roller brush mechanism is arranged on the opening and closing base plate mechanism.

[0008] Furthermore, the opening and closing base plate mechanism includes a lifting base bracket, a transverse moving block and a manual opening and closing control component, the lifting base bracket is arranged on the lifting component, the transverse moving block is slidably arranged on the lifting base bracket, and the manual opening and closing control component is arranged on the transverse moving block.

[0009] The sliding engagement and separation of the two transverse blocks can be manually controlled through the opening and closing base plate mechanism. By rotating and toggling the rocker arm, the transverse block can be slid to the bottom of the pressure block during the pressure test to ensure that both the upper and lower pressure surfaces have sufficient support strength. After the test, the transverse block can be separated to leave a channel for the test block debris to fall.

[0010] Preferably, a transverse guide rod is provided on the lifting base bracket, a guide groove is provided on the transverse stop block, the transverse guide rod is engaged and slidably arranged in the guide groove, and a sliding boss is provided on one side of the transverse stop block.

[0011] As a further preferred embodiment of the present invention, the manual opening and closing control assembly includes a sliding control arm, a longitudinal slider, a longitudinal slide groove and a rocker arm, the two ends of the sliding control arm are respectively hinged to the convex shaft and the sliding boss of the longitudinal slider, the longitudinal slide groove is fixed to the lifting base bracket, the longitudinal slider is engaged and slidably arranged in the longitudinal slide groove, one end of the rocker arm is hinged to the outer shell, and the convex shaft of the longitudinal slider slides in the slide groove of the rocker arm.

[0012] Furthermore, the lifting assembly includes a lifting screw, a lifting nut, a nut mounting seat and a shell, the lifting screw is rotatably arranged on the lifting and extrusion guide mechanism, the lifting screw is driven by a motor, the lifting nut and the lifting screw are threadedly connected, the lifting nut is fixed in the nut mounting seat, the nut mounting seat is fixed in the shell, the lifting base bracket is fixed in the shell, and the lifting base bracket and the nut mounting seat are fixed.

[0013] The overall lifting and lowering control of the opening and closing base plate mechanism can be achieved through the threaded transmission between the lifting screw and the lifting nut.

[0014] Furthermore, the automatic slag falling mechanism includes a flexible steel plate assembly and a driven assembly, the flexible steel plate assembly is arranged on the opening and closing bottom plate mechanism, and the driven assembly is arranged on the lifting assembly.

[0015] Preferably, the flexible steel plate assembly includes a flexible steel plate and a rack guide rail, one end of the flexible steel plate is provided with a reset spring, the end of the reset spring is fixed to the lifting base bracket, the flexible steel plate is slidably provided on the lifting base bracket, the rack guide rail is fixed to the lifting base bracket, a rack body is slidably provided on the rack guide rail, and the rack body and the other end of the flexible steel plate are fixed.

[0016] Through the transmission between the spur gear and the rack body, the flexible steel plate can be slowly retracted into the opening and closing base plate mechanism during the descent of the opening and closing base plate mechanism, so that the debris originally placed on the flexible steel plate falls into the tray from the space between the transverse blocks, thereby realizing the cleaning and collection of the debris.

[0017] As a further preferred embodiment of the present invention, the driven assembly includes a driven shaft bracket, which is arranged on the lifting assembly. A driven rotating shaft is rotatably provided on the driven shaft bracket, and spur gears are symmetrically provided at both ends of the driven rotating shaft. The spur gears and the rack body are engaged for transmission, and a bevel gear is provided in the middle position of the driven rotating shaft.

[0018] The bevel groove on the bevel gear cooperates with the spiral protrusion of the lifting screw. The rotational movement of the lifting screw relative to the bevel gear can drive the bevel gear to rotate, and the lifting movement of the bevel gear relative to the lifting screw can also drive the bevel gear to rotate.

[0019] The rotational movement of the lifting screw relative to the bevel gear can drive the bevel gear to rotate, and this transmission ratio is A; the lifting and lowering movement of the bevel gear relative to the lifting screw can also drive the bevel gear to rotate, and this transmission ratio is B. In actual use, since the rotation of the lifting screw will simultaneously drive the opening and closing base plate mechanism to rise and fall, the actual transmission ratio between the lifting screw and the bevel gear is the superposition of A and B. By separately designing A and B, the actual transmission ratio between the bevel gear and the lifting screw can be controlled.

[0020] Furthermore, the reciprocating roller brush mechanism includes a roller brush bracket, which is arranged on a lifting base bracket. A roller brush shaft is rotatably provided at the end of the roller brush bracket, and a roller brush cylinder is provided on the roller brush shaft. The roller brush cylinder is in sliding contact with the upper surface of the flexible steel plate, and a torsion spring for resetting is provided between the roller brush shaft and the roller brush bracket.

[0021] Preferably, the reciprocating roller brush mechanism also includes a winding sleeve and a linkage rope, the winding sleeve is respectively arranged on the roller brush shaft and the driven shaft, the linkage rope is wound on the winding sleeve, and a steering guide rod is provided on the roller brush bracket, and the linkage rope and the steering guide rod are in sliding contact.

[0022] Through the linkage of the linkage rope, the driven shaft can rotate with the roller brush shaft at the same time. During the rotation process, the roller brush can sweep the debris accumulated on the flexible steel plate into the gap between the transverse blocks.

[0023] The lifting and extrusion guide mechanism includes a base and a tray, the base is provided with a support column, the support column is provided with a top platform, the bottom of the top platform is provided with a pressure block, the tray is placed on the base, and the lifting screw is rotatably arranged between the base and the top platform.

[0024] The beneficial effects achieved by the present invention using the above structure are as follows:

[0025] (1) The sliding engagement and separation of the two transverse blocks can be manually controlled by the opening and closing bottom plate mechanism. By rotating the rocker arm, the transverse block can be slid to the bottom of the pressure block during the pressure test to ensure that both the upper and lower pressure surfaces have sufficient support strength. After the test, the transverse block can be separated to leave a channel for the debris of the test block to fall.

[0026] (2) Through the threaded transmission between the lifting screw and the lifting nut, the overall lifting and lowering control of the opening and closing base plate mechanism can be achieved.

[0027] (3) Through the transmission between the spur gear and the rack body, the flexible steel plate can be slowly retracted into the opening and closing base plate mechanism during the descent process of the opening and closing base plate mechanism, so that the debris originally placed on the flexible steel plate falls into the tray from the space between the transverse blocks, thereby realizing the cleaning and collection of the debris.

[0028] (4) The rotational movement of the lifting screw relative to the bevel gear can drive the bevel gear to rotate, and this transmission ratio is A; the lifting and lowering movement of the bevel gear relative to the lifting screw can also drive the bevel gear to rotate, and this transmission ratio is B. In actual use, since the rotation of the lifting screw will simultaneously drive the opening and closing base plate mechanism to rise and fall, the actual transmission ratio between the lifting screw and the bevel gear is the superposition of A and B. By designing A and B separately, the actual transmission ratio between the bevel gear and the lifting screw can be controlled.

[0029] (5) Through the linkage of the linkage rope, the driven shaft can rotate with the roller brush shaft at the same time. During the rotation process, the roller brush can sweep the debris accumulated on the flexible steel plate into the gap between the transverse blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional diagram of a device for testing the compressive strength of a material test block proposed by the present invention;

[0031] Figure 2 This is a front view of a device for testing the compressive strength of a material test block proposed by the present invention;

[0032] Figure 3 for Figure 2 A cross-sectional view along the cutting line AA;

[0033] Figure 4 for Figure 3 A cross-sectional view along the cutting line BB;

[0034] Figure 5 for Figure 3 A cross-sectional view along the cutting line CC;

[0035] Figure 6This is a schematic diagram of the explosion structure of a device for testing the compressive strength of a material test block proposed by the present invention;

[0036] Figure 7 for Figure 2 A partial enlarged view of point Ⅰ in the middle;

[0037] Figure 8 for Figure 4 A partial enlarged view of the middle II;

[0038] Figure 9 for Figure 5 A partial enlarged view of point III in the middle;

[0039] Figure 10 for Figure 6 A partial enlarged view of the middle IV;

[0040] Figure 11 for Figure 6 A partial enlarged view of point V in the middle.

[0041] Among them, 1. Opening and closing bottom plate mechanism, 2. Lifting assembly, 3. Automatic slag falling mechanism, 4. Reciprocating roller brush mechanism, 5. Lifting and extruding guide mechanism, 6. Lifting base bracket, 7. Transverse stopper, 8. Manual opening and closing control assembly, 9. Transverse guide rod, 10. Guide groove, 11. Sliding boss, 12. Sliding control arm, 13. Longitudinal slider, 14. Longitudinal slide groove, 15. Rocker arm, 16. Lifting screw, 17. Lifting nut, 18. Nut mounting seat, 19. Housing, 20. Flexible steel plate assembly, 21. Driven assembly, 22. Flexible steel plate, 23. Return spring, 24. Rack guide rail, 25. Rack body, 26. Driven shaft bracket, 27. Driven rotating shaft, 28. Spur gear, 29. Bevel gear, 30. Roller brush bracket, 31. Winding sleeve, 32. Linkage rope, 33. Roller brush rotating shaft, 34. Roller brush cylinder, 35. Base, 36. Support column, 37. Tray, 38. Top platform, 39. Pressure block.

[0042] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0045] like Figures 1 to 11 As shown, the present invention proposes an apparatus for detecting the compressive strength of a material test block, comprising an opening and closing base plate mechanism 1, a lifting component 2, an automatic slag falling mechanism 3, a reciprocating roller brush mechanism 4 and a lifting and extrusion guide mechanism 5. The opening and closing base plate mechanism 1 is arranged on the lifting component 2, the lifting component 2 is arranged on the lifting and extrusion guide mechanism 5, the automatic slag falling mechanism 3 is arranged on the opening and closing base plate mechanism 1, and the reciprocating roller brush mechanism 4 is arranged on the opening and closing base plate mechanism 1.

[0046] The opening and closing base plate mechanism 1 includes a lifting basic bracket 6, a transverse stopper 7 and a manual opening and closing control component 8. The lifting basic bracket 6 is arranged on the lifting component 2, the transverse stopper 7 is slidably arranged on the lifting basic bracket 6, and the manual opening and closing control component 8 is arranged on the transverse stopper 7.

[0047] The sliding engagement and separation of the two transverse moving blocks 7 can be manually controlled through the opening and closing bottom plate mechanism 1. By rotating and toggling the rocker arm 15, the transverse moving block 7 can be slid to the bottom of the pressure block 39 during the pressure test to ensure that both the upper and lower pressure surfaces have sufficient supporting strength. After the test is completed, the transverse moving block 7 can be separated to leave a channel for the test block debris to fall.

[0048] A transverse guide rod 9 is provided on the lifting basic bracket 6 , a guide groove 10 is provided on the transverse stopper 7 , the transverse guide rod 9 is engaged and slidably arranged in the guide groove 10 , and a sliding boss 11 is provided on one side of the transverse stopper 7 .

[0049] The manual opening and closing control assembly 8 includes a sliding control arm 12, a longitudinal slider 13, a longitudinal slide groove 14 and a rocker arm 15. The two ends of the sliding control arm 12 are respectively hinged to the convex shaft of the longitudinal slider 13 and the sliding boss 11. The longitudinal slide groove 14 is fixed to the lifting base bracket 6. The longitudinal slider 13 is engaged and slidably arranged in the longitudinal slide groove 14. One end of the rocker arm 15 is hinged to the outer shell 19, and the convex shaft of the longitudinal slider 13 slides in the slide groove of the rocker arm 15.

[0050] The lifting assembly 2 includes a lifting screw 16, a lifting nut 17, a nut mounting seat 18 and a shell 19. The lifting screw 16 is rotatably arranged on the lifting and extrusion guide mechanism 5. The lifting screw 16 is driven by a motor. The lifting nut 17 and the lifting screw 16 are threadedly connected. The lifting nut 17 is fixed in the nut mounting seat 18. The nut mounting seat 18 is fixed in the shell 19. The lifting base bracket 6 is fixed in the shell 19. The lifting base bracket 6 and the nut mounting seat 18 are fixed.

[0051] The overall lifting and lowering control of the retractable base plate mechanism 1 can be achieved through the threaded transmission between the lifting screw 16 and the lifting nut 17 .

[0052] The automatic slag dropping mechanism 3 includes a flexible steel plate assembly 20 and a driven assembly 21 . The flexible steel plate assembly 20 is arranged on the opening and closing bottom plate mechanism 1 , and the driven assembly 21 is arranged on the lifting assembly 2 .

[0053] The flexible steel plate assembly 20 includes a flexible steel plate 22 and a rack guide rail 24. A reset spring 23 is provided at one end of the flexible steel plate 22. The end of the reset spring 23 is fixed to the lifting base bracket 6. The flexible steel plate 22 is slidably provided on the lifting base bracket 6. The rack guide rail 24 is fixed to the lifting base bracket 6. A rack body 25 is slidably provided on the rack guide rail 24. The rack body 25 is fixed to the other end of the flexible steel plate 22.

[0054] Through the transmission between the spur gear 28 and the rack body 25, the flexible steel plate 22 can be slowly retracted into the opening and closing base plate mechanism 1 during the descent of the opening and closing base plate mechanism 1, so that the debris originally placed on the flexible steel plate 22 falls from the space between the transverse moving blocks 7 into the tray 37, thereby realizing the cleaning and collection of the debris.

[0055] The driven assembly 21 includes a driven shaft bracket 26, which is provided on the lifting assembly 2. A driven rotating shaft 27 is rotatably provided on the driven shaft bracket 26. Spur gears 28 are symmetrically provided at both ends of the driven rotating shaft 27. The spur gears 28 are engaged with the rack body 25 for transmission. A bevel gear 29 is provided in the middle position of the driven rotating shaft 27.

[0056] The bevel groove on the bevel gear 29 cooperates with the spiral protrusion of the lifting screw 16. The rotational movement of the lifting screw 16 relative to the bevel gear 29 can drive the bevel gear 29 to rotate, and the lifting movement of the bevel gear 29 relative to the lifting screw 16 can also drive the bevel gear 29 to rotate.

[0057] The rotational movement of the lifting screw 16 relative to the bevel gear 29 can drive the bevel gear 29 to rotate, and this transmission ratio is A; the lifting and lowering movement of the bevel gear 29 relative to the lifting screw 16 can also drive the bevel gear 29 to rotate, and this transmission ratio is B. In actual use, since the rotation of the lifting screw 16 will simultaneously drive the opening and closing base plate mechanism 1 to rise and fall, the actual transmission ratio between the lifting screw 16 and the bevel gear 29 is the superposition of A and B. By separately designing A and B, the actual transmission ratio between the bevel gear 29 and the lifting screw 16 can be controlled.

[0058] The reciprocating roller brush mechanism 4 includes a roller brush bracket 30, which is arranged on the lifting base bracket 6. A roller brush shaft 33 is rotatably provided at the end of the roller brush bracket 30, and a roller brush cylinder 34 is provided on the roller brush shaft 33. The roller brush cylinder 34 is in sliding contact with the upper surface of the flexible steel plate 22, and a torsion spring for resetting is provided between the roller brush shaft 33 and the roller brush bracket 30.

[0059] The reciprocating roller brush mechanism 4 also includes a winding sleeve 31 and a linkage rope 32. The winding sleeve 31 is respectively arranged on the roller brush shaft 33 and the driven shaft 27. The linkage rope 32 is wound on the winding sleeve 31. A steering guide rod is provided on the roller brush bracket 30. The linkage rope 32 and the steering guide rod are in sliding contact.

[0060] Through the linkage of the linkage rope 32, the driven shaft 27 can rotate with the roller brush shaft 33 at the same time when rotating, and the roller brush cylinder 34 can sweep the debris accumulated on the flexible steel plate 22 into the gap between the transverse moving blocks 7 during the rotation process.

[0061] The lifting and extrusion guide mechanism 5 includes a base 35 and a tray 37. The base 35 is provided with a support column 36, and the support column 36 is provided with a top platform 38. A pressure block 39 is provided at the bottom of the top platform 38. The tray 37 is placed on the base 35, and the lifting screw rod 16 is rotatably arranged between the base 35 and the top platform 38.

[0062] In specific use, in the initial state, the retractable base plate mechanism 1 is located at the bottom. At this time, the longitudinal slider 13 is moved downward by toggling the rocker arm 15. At this time, the two transverse stoppers 7 are moved closer to the middle position by the linkage of the sliding control arm 12 until they are in contact. Then, the test block is placed on the transverse stopper 7 and is approximately located below the pressure block 39. At this time, the flexible steel plate 22 is still in the retracted state.

[0063] Then, by controlling the rotation of the lifting screw 16, the opening and closing base plate mechanism 1 can be raised as a whole. During the rising process, the lifting screw 16 will rotate with the bevel gear 29; the rotational movement of the lifting screw 16 relative to the bevel gear 29 can drive the bevel gear 29 to rotate (similar to a worm gear transmission mechanism), and this transmission ratio is A; the lifting and lowering movement of the bevel gear 29 relative to the lifting screw 16 can also drive the bevel gear 29 to rotate (similar to a gear rack transmission mechanism), and this transmission ratio is B. In actual use, since the rotation of the lifting screw 16 will simultaneously drive the opening and closing base plate mechanism 1 to rise and fall, the actual transmission ratio between the lifting screw 16 and the bevel gear 29 is the superposition of A and B; the transmission matching accuracy requirements between the lifting screw 16 and the bevel gear 29 are not high, and an allowance is allowed, as long as the bevel gear 29 can be driven to rotate.

[0064] When the opening and closing base plate mechanism 1 rises, the bevel gear 29 drives the driven rotating shaft 27 and the spur gear 28 to rotate, and the spur gear 28 pushes the rack body 25 to slide up along the rack guide rail 24. At this time, the flexible steel plate 22 gradually extends under the elastic force of the return spring 23. Since the middle position of the workpiece is blocked by the top opening of the shell 19, the end slope of the flexible steel plate 22 can be smoothly inserted into the bottom of the test block and separate itself between the test block and the transverse stopper 7; the top opening of the shell 19 has a downward bend slope, so even if a small part of the crushed slag falls on the top of the shell 19, it can slide onto the flexible steel plate 22 through this slope.

[0065] When the opening and closing bottom plate mechanism 1 moves to the top, the test block contacts the pressure block 39. When pressure continues to be applied, the test block will be squeezed by the pressure block 39 on the top and the flexible steel plate 22 at the bottom. At this time, the transverse stopper 7 provides support for the flexible steel plate 22. During this process, the sensor located on the pressure block 39 can sense the pressure changes and the pressure value when the test block breaks.

[0066] After the test is completed, the longitudinal slider 13 is pushed upward by the rocker arm 15. At this time, the transverse stopper 7 will move laterally outward and separate under the linkage of the sliding control arm 12, leaving space for the slag to fall;

[0067] Then, the lifting screw 16 rotates in the reverse direction to lower the opening and closing base plate mechanism 1 as a whole. At this time, the rotation direction of the bevel gear 29 is opposite to that during the raising process.

[0068] When the bevel gear 29 rotates, the rack body 25 can be lowered through the spur gear 28, and the flexible steel plate 22 can slide and retract; at the same time, through the linkage of the linkage rope 32, the roller brush shaft 33 and the roller brush cylinder 34 will also rotate at the same time, and the rotation direction of the roller brush cylinder 34 has the effect of pushing the debris accumulated on the flexible steel plate 22 outward to prevent the debris from sticking to the flexible steel plate 22.

[0069] During descent, the rotation of the roller brush shaft 33 causes the torsion spring to deform and accumulate elastic force, so that during the ascending stage, the roller brush shaft 33 can rotate to reset and keep the linkage rope 32 taut.

[0070] During the retraction of the flexible steel plate 22, the debris will first follow the movement of the flexible steel plate 22 and accumulate near the roller brush 34. In the final stage of the retraction of the flexible steel plate 22, that is, when the opening and closing bottom plate mechanism 1 has dropped to a lower position, the debris will fall from the flexible steel plate 22 toward the tray 37; the falling debris falls into the tray 37 and can be cleaned up in time.

[0071] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0072] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A device for testing the compressive strength of a material test block, characterized by: The invention comprises an opening and closing bottom plate mechanism (1), a lifting assembly (2), a crushed slag automatic falling mechanism (3), a reciprocating roller brush mechanism (4) and a lifting and extruding guide mechanism (5), wherein the opening and closing bottom plate mechanism (1) is arranged on the lifting assembly (2), the lifting assembly (2) is arranged on the lifting and extruding guide mechanism (5), the crushed slag automatic falling mechanism (3) is arranged on the opening and closing bottom plate mechanism (1), and the reciprocating roller brush mechanism (4) is arranged on the opening and closing bottom plate mechanism (1); The opening and closing base plate mechanism (1) comprises a lifting base bracket (6), a transversely movable block (7) and a manual opening and closing control component (8), wherein the lifting base bracket (6) is arranged on the lifting component (2), the transversely movable block (7) is slidably arranged on the lifting base bracket (6), and the manual opening and closing control component (8) is arranged on the transversely movable block (7); The slag automatic falling mechanism (3) comprises a flexible steel plate assembly (20) and a driven assembly (21), wherein the flexible steel plate assembly (20) is arranged on the opening and closing bottom plate mechanism (1), and the driven assembly (21) is arranged on the lifting assembly (2); The lifting assembly (2) includes a lifting screw (16), the lifting screw (16) is rotatably mounted on the lifting extrusion guide mechanism (5), the driven assembly (21) includes a driven shaft bracket (26), the driven shaft bracket (26) is mounted on the lifting assembly (2), a driven rotating shaft (27) is rotatably mounted on the driven shaft bracket (26), a bevel gear (29) is provided at the middle position of the driven rotating shaft (27), and the bevel groove on the bevel gear (29) is matched with the spiral protrusion of the lifting screw (16); The reciprocating roller brush mechanism (4) includes a roller brush bracket (30), the roller brush bracket (30) is arranged on a lifting base bracket (6), and a roller brush shaft (33) is rotatably provided at the end of the roller brush bracket (30). The reciprocating roller brush mechanism (4) also includes a winding sleeve (31) and a linkage rope (32), the winding sleeve (31) is respectively arranged on the roller brush shaft (33) and the driven shaft (27), and the linkage rope (32) is wound around the winding sleeve (31).

2. The device for testing the compressive strength of a material test block according to claim 1, characterized in that: The flexible steel plate assembly (20) includes a flexible steel plate (22) and a rack guide rail (24), one end of the flexible steel plate (22) is provided with a return spring (23), the end of the return spring (23) is fixed to the lifting base bracket (6), the flexible steel plate (22) is slidably provided on the lifting base bracket (6), the rack guide rail (24) is fixed to the lifting base bracket (6), a rack body (25) is slidably provided on the rack guide rail (24), and the rack body (25) and the other end of the flexible steel plate (22) are fixed.

3. The device for testing the compressive strength of a material test block according to claim 2, characterized in that: Spur gears (28) are symmetrically provided at both ends of the driven rotating shaft (27), and the spur gears (28) and the rack body (25) are meshed for transmission.

4. The device for testing the compressive strength of a material test block according to claim 3, characterized in that: A roller brush cylinder (34) is provided on the roller brush shaft (33), the roller brush cylinder (34) is in sliding contact with the upper surface of the flexible steel plate (22), and a torsion spring for resetting is provided between the roller brush shaft (33) and the roller brush bracket (30).

5. The device for testing the compressive strength of a material test block according to claim 4, characterized in that: A steering guide rod is provided on the roller brush bracket (30), and the linkage rope (32) is in sliding contact with the steering guide rod.

6. The device for testing the compressive strength of a material test block according to claim 5, characterized in that: The lifting assembly (2) further includes a lifting nut (17), a nut mounting seat (18) and a housing (19); the lifting screw (16) is driven by a motor; the lifting nut (17) and the lifting screw (16) are threadedly connected; the lifting nut (17) is fixed in the nut mounting seat (18); the nut mounting seat (18) is fixed in the housing (19); the lifting base bracket (6) is fixed in the housing (19); and the lifting base bracket (6) and the nut mounting seat (18) are fixed.

7. The device for testing the compressive strength of a material test block according to claim 6, characterized in that: The rotational movement of the lifting screw (16) relative to the bevel gear (29) can drive the bevel gear (29) to rotate, and the lifting movement of the bevel gear (29) relative to the lifting screw (16) can also drive the bevel gear (29) to rotate.

8. The device for testing the compressive strength of a material test block according to claim 7, characterized in that: The lifting base bracket (6) is provided with a transverse guide rod (9), the transverse stopper (7) is provided with a guide groove (10), the transverse guide rod (9) is engaged and slidably arranged in the guide groove (10), and a sliding boss (11) is provided on one side of the transverse stopper (7).

9. The device for testing the compressive strength of a material test block according to claim 8, characterized in that: The manual opening and closing control assembly (8) includes a sliding control arm (12), a longitudinal slider (13), a longitudinal slide groove (14) and a rocker arm (15), wherein the two ends of the sliding control arm (12) are respectively hinged to the convex shaft of the longitudinal slider (13) and the sliding boss (11), the longitudinal slide groove (14) is fixed to the lifting base bracket (6), the longitudinal slider (13) is engaged and slidably arranged in the longitudinal slide groove (14), one end of the rocker arm (15) is hinged to the housing (19), and the convex shaft of the longitudinal slider (13) slides in the slide groove of the rocker arm (15).

10. The device for testing the compressive strength of a material test block according to claim 9, characterized in that: The lifting and extrusion guide mechanism (5) includes a base (35) and a tray (37), wherein the base (35) is provided with a support column (36), the support column (36) is provided with a top platform (38), the bottom of the top platform (38) is provided with a pressure block (39), the tray (37) is placed on the base (35), and the lifting screw rod (16) is rotatably arranged between the base (35) and the top platform (38).

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