Shaping and sawing equipment for concrete performance test

Abstract

The invention discloses shaping saw cutting equipment for concrete performance test, which comprises a base and a saw blade, the top end of the base is provided with a saw cutting table, the base is internally provided with a driving mechanism, the saw cutting table is used for mounting a test block, and the driving mechanism is used for driving the saw blade to operate and the saw cutting table to move; a limiting plate and a push plate are arranged on one side of the top end of the base and the other side of the top end of the sawing table respectively. According to the autoclaved aerated concrete test block sawing device, an autoclaved aerated concrete test block can be clamped through the push plate and the limiting plate and then is sawn, and due to the fact that the position of the limiting plate can be adjusted, the relative position between the test block and a saw blade can be conveniently adjusted, and then shaping sawing on the test block is facilitated; and the original manual propulsion can be replaced by the cooperation of a mechanical structure, so that not only can the influence of dust and fine particles generated by sawing on workers be avoided, but also the uniformity and the stability of the movement of the test block can be ensured, and the effect and the efficiency during sawing are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of autoclaved aerated concrete sawing, in particular to a shaping sawing device for concrete performance testing. Background Art

[0002] Autoclaved aerated concrete blocks are a kind of porous concrete products made of fly ash, lime, cement, gypsum, slag and other raw materials, with appropriate amount of gas generating agent, regulator, bubble stabilizer added, and then through the process of batching, mixing, pouring, static stopping, cutting and high-pressure steaming.

[0003] According to the autoclaved aerated concrete performance test method specified in the national standard GB / T 11969-2020, small pieces of material for performance inspection tests need to be sawed out from the sample according to the specified size as test pieces, and it is stipulated that the test pieces should be prepared by machine sawing, and the test pieces should not be wetted during sawing.

[0004] After searching, the Chinese invention patent with publication number CN114393681 B discloses a cutting system for autoclaved aerated concrete blocks, including a frame, a cutting device and a positioning device. The cutting device includes a driving motor, a saw belt and at least two pulleys, the pulley is rotatably connected to the frame, the saw belt is sleeved on the pulley, the driving motor is fixedly connected to the frame, and the driving motor is transmission-connected to the pulley; the positioning device includes a workbench, a first positioning plate and a second positioning plate, the workbench is slidably arranged on the frame, a through-groove is provided on the workbench, and the length direction of the through-groove is parallel to the sliding direction of the workbench; the first positioning plate and the second positioning plate are both arranged on the workbench, the first positioning plate and the second positioning plate are both perpendicular to the upper surface of the workbench, and the normal direction of the first positioning plate is perpendicular to the length direction of the through-groove, and the normal direction of the second positioning plate is parallel to the length direction of the through-groove. This application uses a driving motor to drive the saw belt, and then the staff pushes the workbench to achieve the sawing of autoclaved aerated concrete. However, since a large amount of dust and fine particles will inevitably be generated during the sawing process, this will not only affect the operation of the workbench, thereby reducing the sawing efficiency, but may also affect the safety of the operator himself. Summary of the invention

[0005] In view of the above-mentioned prior art, the present invention provides a shaping sawing device for concrete performance testing, and the main technical problem to be solved is how to improve the sawing efficiency of autoclaved aerated concrete.

[0006] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0007] A shaped sawing device for concrete performance test, comprising a base and a saw blade, wherein a sawing table is arranged at the top of the base, and a driving mechanism is arranged inside the base, the sawing table is used to install a test block, and the driving mechanism is used to drive the saw blade to operate and the sawing table to move;

[0008] A limit plate and a push plate are respectively provided on one side of the top of the base and the other side of the top of the saw table. The limit plate is movably connected to the base, and one side of the limit plate is provided with a plurality of rollers. The saw table clamps the test block through the push plate and the limit plate. The driving mechanism includes a reciprocating moving component and an intermittent moving component. The reciprocating moving component includes a driven wheel and a fixed frame. The saw blade is fixedly connected to the top of the fixed frame. A movable pile is rotatably connected to the outer side of the end face of the driven wheel. The movable pile is slidably connected to the inner side of the fixed frame. The driven wheel drives the fixed frame to reciprocate and lift through the movable pile. The intermittent moving component includes a turntable. A shift rod is fixedly connected to the outer side of the turntable. A plurality of fixed piles are fixedly connected to one side of the saw table. The turntable pushes the fixed pile through the shift rod.

[0009] Furthermore, a connecting plate is fixedly connected to the inner wall of the top end of the base at one side of the partition, a circular through hole is opened at the bottom end of the connecting plate, and the connecting plate is rotatably connected to a connecting shaft at the circular through hole, the driven wheel and the turntable are respectively connected to the two ends of the connecting shaft by keys, a motor is fixedly connected to the inner wall of one side of the base, and a rotating shaft is rotatably connected to one side of the inner wall of the bottom end of the base, the bottom end of the output shaft of the motor and the outside of the rotating shaft are connected to pulleys by keys, and the outside of the two pulleys are provided with the same belt.

[0010] Furthermore, the top of the rotating shaft is connected to a driving wheel through a key, and both the driving wheel and the driven wheel are bevel gears, and the driving wheel is meshed with the driven wheel. The inner wall of the bottom end of the base is fixedly connected to sliding rods on both sides of the driven wheel, and sliding sleeves are sleeved on the outside of the two sliding rods. The fixed frame is fixedly connected between the two sliding sleeves, and a sawing groove is opened at the top of the base between the two sliding rods, and the top of the saw blade extends to the outside of the base at the sawing groove.

[0011] Furthermore, a rectangular opening is provided at the top of the base on a side away from the motor, and a support tube is fixedly connected to the top of the base at the rectangular opening, a plurality of guide rails are equidistantly fixedly connected to the top of the base on a side away from the support tube, a plurality of slide grooves are provided at the bottom end of the saw table, the number of guide rails and slide grooves is the same and corresponds one to one, the saw table is slidably connected to the guide rails at the slide grooves, the saw table has a strip opening at the sawing groove, and the saw blade passes through the saw table at the strip opening.

[0012] Furthermore, a dust bag is provided inside the base on a side away from the motor, an air inlet is provided at the top of the dust bag, and the dust bag is fixedly connected to a connecting pipe at the air inlet, an air exhaust port is provided on one side of the dust bag, and the dust bag is fixedly connected to a filter at the air exhaust port, an installation port is provided on a side of the base close to the dust bag, and the dust bag is fixedly connected to a fan at the installation port, and the fan and the filter are fixedly connected.

[0013] Furthermore, a circular opening is provided at the bottom end of one side of the support tube close to the saw table, one end of the connecting tube extends to the interior of the support tube at the rectangular opening, and extends to the outside of the support tube at the circular opening, one end of the connecting tube outside the support tube is fixedly connected to a wind hood, the connecting tube is a hose, and the side wall of the support tube is fixedly connected to a metal shaped hose at the outside of the connecting tube, and the teeth on the saw blade are unidirectional teeth.

[0014] Furthermore, a top plate is fixedly connected to the top of the support cylinder, and two cover shells are fixedly connected to one side of the bottom end of the top plate. Guide rods are fixedly connected between the top inner walls and bottom inner walls of the two cover shells, and guide sleeves are sleeved on the outside of the two guide rods. The top of the saw blade extends between the two cover shells, and a connecting rod is fixedly connected to the top of the saw blade, and both ends of the connecting rod are fixedly connected to the two guide sleeves respectively, and a spring is fixedly connected between the guide sleeve and the top inner wall and bottom inner wall of the cover shell.

[0015] Furthermore, a fixing plate is fixedly connected to the top of the saw table on one side away from the supporting tube, a threaded through hole is provided in the fixing plate body, and a stud is threadedly connected to the fixing plate at the threaded through hole, a push plate is L-shaped, and the push plate is fixedly connected to one end of the stud, and a handle is fixedly connected to the other end of the stud, and the top of the base is fixedly connected to supporting plates on both sides of the supporting tube, one side of the two supporting plates is fixedly connected to a threaded sleeve, the inner sides of the two threaded sleeves are threadedly connected to threaded rods, and a limit plate is fixedly connected to one end of the two threaded rods.

[0016] Furthermore, a plurality of thread grooves are equidistantly formed on the outer side of the turntable body, and the lever comprises a bolt and a rod head. The bolt is threadably connected to the turntable at the thread groove, and the rod head is fixedly connected to one end of the bolt.

[0017] The beneficial effects of the present invention are:

[0018] 1. The device can saw the autoclaved aerated concrete test block after clamping it with the push plate and the limit plate, and because the position of the limit plate can be adjusted, the relative position between the test block and the saw blade can be adjusted conveniently, which is conducive to shaping and sawing it; in addition, when the motor drives the saw blade to rotate, the turntable can also be driven to rotate synchronously, and the turntable can intermittently push the fixed pile through the lever, so that the sawing table moves slowly, and the sawing table drives the test block to gradually approach the saw blade, so that the sawing process can be realized, so that the mechanical structure can be used to replace the original manual push, so that it can not only avoid the dust and fine particles generated by the sawing from affecting the staff, but also ensure the uniformity and stability of the movement of the test block, so as to ensure the effect and efficiency of the sawing;

[0019] 2. When the motor drives the saw blade to continuously reciprocate up and down, the connecting rod and guide sleeve at the top of the saw blade will also move accordingly. In this case, the spring can buffer the movement of the guide sleeve through its own elastic force, thus reducing the impact of the saw blade when it moves, thereby ensuring the safety and durability of the saw blade itself;

[0020] 3. During the sawing process of the test block, negative pressure can be generated at the connecting pipe by starting the fan. Therefore, when the wind hood is placed where the saw blade contacts the test block, the dust and fine particles generated by sawing will be affected by the airflow and sucked into the dust bag. In this case, it can not only further prevent dust and fine particles from affecting the sawing process, but also facilitate their centralized collection and treatment. In addition, since the teeth on the saw blade are unidirectional teeth, by adjusting its installation direction, it can be determined that it only has a sawing effect when moving upward, so that the direction of dust and fine particles generated can be upward, which can further facilitate their suction treatment.

[0021] 4. When the turntable pushes the fixed pile through the lever to move the saw table, the frequency of pushing the fixed pile can be determined by selecting the number of levers to be used, thereby achieving the effect of controlling the movement speed of the saw table. In this way, according to the sawing requirements of test blocks of different volumes and thicknesses, the speed at which the saw table drives the test block to move can be controlled while the saw blade running speed remains unchanged, thereby ensuring the sawing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a shaping sawing device for concrete performance testing in Example 1 of the present application;

[0023] Figure 2 A sectional perspective view of a base of a shaping sawing device for concrete performance testing in Example 1 of the present application;

[0024] Figure 3A side cross-sectional view of a base of a shaping sawing device for concrete performance testing in Example 1 of the present application;

[0025] Figure 4 It is a side cross-sectional view of a housing of a shaping sawing device for concrete performance testing in Example 1 of the present application;

[0026] Figure 5 This is a side sectional view of a turntable of a shaping sawing device for concrete performance testing in Example 2 of the present application.

[0027] Description of Figure Numbers:

[0028] Base 1, saw table 2, guide rail 3, fixed pile 4, roller 5, limit plate 6, support plate 7, threaded sleeve 8, threaded rod 9, support tube 10, top plate 11, cover 12, saw blade 13, connecting pipe 14, wind hood 15, stud 16, push plate 17, fixed plate 18, handle 19, pulley 20, belt 21, driving wheel 22, driven wheel 23, slide bar 24, slide sleeve 25, partition 26, dust bag 27, lever 28, bolt 2801, rod head 2802, connecting plate 29, fixed frame 30, movable pile 31, motor 32, fan 33, turntable 34, guide rod 35, spring 36, guide sleeve 37, connecting rod 38. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is related to a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0030] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] Example 1

[0032] See attached Figure 1-4The present application provides a shaped sawing device for concrete performance test, including a base 1 and a saw blade 13. A sawing table 2 is provided at the top of the base 1, and a driving mechanism is provided inside the base 1. The sawing table 2 is used to install a test block, and the driving mechanism is used to drive the saw blade 13 to operate and the sawing table 2 to move. After the test block is installed on the sawing table 2, the sawing table 2 is driven to move, so that the test block and the saw blade 13 can move relative to each other, thereby achieving a sawing effect;

[0033] A limit plate 6 and a push plate 17 are respectively provided on one side of the top of the base 1 and the other side of the top of the sawing table 2. The limit plate 6 is movably connected to the base 1, and a plurality of rollers 5 are provided on one side of the limit plate 6. The sawing table 2 clamps the test block by the push plate 17 and the limit plate 6. After the test block is clamped and fixed by the push plate 17 and the limit plate 6, the sawing table 2 can drive the test block and the limit plate 6 to move relative to each other in the lateral direction because of the existence of the rollers 5. However, in the longitudinal direction, the limit plate 6 can still provide a limiting effect on the test block, so as to meet the movement requirements of the test block during sawing. The driving mechanism includes a reciprocating moving component and an intermittent moving component. The reciprocating moving component includes a driven wheel 23 and a fixed frame 30. The saw blade 13 is fixedly connected to the top of the fixed frame 30. A movable pile 31 is rotatably connected to the outer side of the end face of the driven wheel 23. The movable pile 31 slides The driven wheel 23 is connected to the inner side of the fixed frame 30, and drives the fixed frame 30 to move up and down through the movable pile 31. The rotation of the driven wheel 23 can make the movable pile 31 do circular motion. In this case, the fixed frame 30 can convert the above circular motion into reciprocating motion in the vertical direction by sliding with the movable pile 31, thereby driving the saw blade 13 to run to saw the test block. The intermittent moving component includes a turntable 34, and a shift rod 28 is fixedly connected to the outer side of the turntable 34. A plurality of fixed piles 4 are fixedly connected to one side of the saw table 2. The turntable 34 pushes the fixed pile 4 through the shift rod 28. The rotation of the turntable 34 can drive the shift rod 28 to rotate. When the shift rod 28 rotates one circle with the turntable 34, the fixed pile 4 can be shifted once. Therefore, the former drives the latter intermittently, thereby realizing the slow movement of the saw table 2.

[0034] Preferably, the top inner wall of the base 1 is fixedly connected with a connecting plate 29 at one side of the partition 26, a circular through hole is opened at the bottom end of the connecting plate 29, and the connecting plate 29 is rotatably connected with a connecting shaft at the circular through hole, the driven wheel 23 and the turntable 34 are respectively connected to the two ends of the connecting shaft by keys, the driven wheel 23 and the turntable 34 rotate coaxially, so the two can be driven by the same power source, the inner wall of one side of the base 1 is fixedly connected with a motor 32, and the inner wall of the bottom end of the base 1 is rotatably connected with a rotating shaft, the bottom end of the output shaft of the motor 32 and the outside of the rotating shaft are connected with pulleys 20 by keys, and the outer sides of the two pulleys 20 are provided with the same belt 21, that is, the motor 32 provides power to subsequent components through a belt transmission system composed of the belt 21 and the two pulleys 20, the purpose of this is to use the belt 21 to slow down the transmission of vibration and to allow the output shaft of the motor 32 to be disturbed by external forces as little as possible.

[0035] Preferably, the top of the rotating shaft is connected to a driving wheel 22 through a key, and both the driving wheel 22 and the driven wheel 23 are bevel gears, and the driving wheel 22 is meshed with the driven wheel 23, that is, the motor 32 can drive the driving wheel 22 to rotate through the above-mentioned belt transmission system, and the driving wheel 22 can drive the driven wheel 23 to rotate, and the inner wall of the bottom end of the base 1 is fixedly connected with sliding rods 24 on both sides of the driven wheel 23, and the outside of the two sliding rods 24 is sleeved with sliding sleeves 25, and the fixed frame 30 is fixedly connected between the two sliding sleeves 25. The sliding rod 24 and the sliding sleeve 25 can play a guiding effect for the fixed frame 30, thereby realizing the process of converting circular motion into linear reciprocating motion, and the top of the base 1 is provided with a sawing groove between the two sliding rods 24, and the top of the saw blade 13 extends to the outside of the base 1 at the sawing groove.

[0036] Preferably, a rectangular opening is provided at the top of the base 1 at a side away from the motor 32, and a support tube 10 is fixedly connected to the top of the base 1 at the rectangular opening, and a plurality of guide rails 3 are fixedly connected to the top of the base 1 at a side away from the support tube 10 at equal intervals, and a plurality of slide grooves are provided at the bottom of the sawing table 2, and the number of guide rails 3 and the slide grooves are the same and correspond one to one, and the sawing table 2 is slidably connected to the guide rails 3 at the slide grooves, and the sawing table 2 is slidably connected to the base 1 through the guide rails 3, so that the sawing table 2 can be ensured. When the lever 28 pushes the fixed pile 4, the saw table 2 moves smoothly. In addition, the saw table 2 is provided with limit blocks at both ends of the slide groove. The limit blocks can limit the maximum moving distance of the saw table 2, so as to ensure that the relative movement between the saw table 2 and the saw blade 13 will not exceed the length of the sawing groove and the strip opening. The saw table 2 is provided with a strip opening at the sawing groove, and the saw blade 13 passes through the saw table 2 at the strip opening. The lengths of the sawing groove and the strip opening can be equal, and the two correspond to each other up and down.

[0037] Preferably, a dust bag 27 is provided inside the base 1 at a side away from the motor 32, an air inlet is provided at the top of the dust bag 27, and the dust bag 27 is fixedly connected to a connecting pipe 14 at the air inlet, an air exhaust port is provided on one side of the dust bag 27, and the dust bag 27 is fixedly connected to a filter at the air exhaust port, a mounting port is provided on the side of the base 1 close to the dust bag 27, and the dust bag 27 is fixedly connected to a fan 33 at the mounting port, and the fan 33 is fixedly connected to the filter, and the air exhaust effect of the fan 33 can be used to make the connecting pipe 14 in a negative pressure state, so that the wind hood 15 can have a suction effect, so that the wind hood can be used to timely suck the dust and fine particles generated by sawing during the sawing process, thereby avoiding the above two effects on the sawing operation process and the operator himself.

[0038] Preferably, a circular opening is provided at the bottom end of one side of the support tube 10 close to the saw table 2, and one end of the connecting tube 14 extends to the inside of the support tube 10 at the rectangular opening, and extends to the outside of the support tube 10 at the circular opening, that is, the connecting tube 14 extends into the support tube 10 at the rectangular opening and extends out of the circular opening. It can also be understood that the connecting tube 14 penetrates the support tube 10 at the rectangular opening and the circular opening, and the end of the connecting tube 14 outside the support tube 10 is fixedly connected to the wind cover 15, the connecting tube 14 is a hose, and the side wall of the support tube 10 is on the outside of the connecting tube 14. A metal shaping hose is fixedly connected at the part, and the metal shaping hose can provide a supporting effect for the connecting pipe 14 and the wind hood 15. In this case, the position and direction of the wind hood 15 can be freely selected by bending the metal shaping hose, so it can facilitate the above-mentioned process of sucking dust and fine particles. The saw teeth on the saw blade 13 are unidirectional saw teeth, so the saw blade 13 can be controlled by selecting the installation direction to produce a sawing effect on the test block only when it moves upward. In this case, dust and fine particles will only be generated upward, so it is convenient to produce the wind hood 15.

[0039] Preferably, the top end of the support cylinder 10 is fixedly connected to a top plate 11, and two cover shells 12 are fixedly connected to one side of the bottom end of the top plate 11. The top plate 11 and the cover shell 12 can provide support for the saw blade 13 at the top end to avoid the end deviation during its up and down reciprocating movement. A guide rod 35 is fixedly connected between the top inner wall and the bottom inner wall of the two cover shells 12, and the outside of the two guide rods 35 are sleeved with a guide sleeve 37. The top end of the saw blade 13 extends between the two cover shells 12, and the top end of the saw blade 13 is fixedly connected to a connecting rod 38, and the two ends of the connecting rod 38 are respectively fixedly connected to the two guide sleeves 37, and a spring 36 is fixedly connected between the guide sleeve 37 and the top inner wall and the bottom inner wall of the cover shell 12. The guide rod 35 and the guide sleeve 37 can provide a guiding effect for the movement of the connecting rod 38, and the spring 36 can provide a buffering effect for the movement of the connecting rod 38, thereby slowing down the impact of the saw blade 13 during the high-speed up and down reciprocating movement, thereby ensuring its own safety and durability.

[0040] Preferably, a fixing plate 18 is fixedly connected to the top of the saw table 2 away from the side of the support tube 10, a threaded through hole is provided in the plate body of the fixing plate 18, and a stud 16 is threadedly connected to the fixing plate 18 at the threaded through hole, and a push plate 17 is L-shaped, and the L-shaped push plate 17 can help the lateral movement of the test block, thereby ensuring the stability of the sawing process, and the push plate 17 is fixedly connected to one end of the stud 16, and a handle 19 is fixedly connected to the other end of the stud 16, and the stud 16 can be driven to rotate by twisting the handle 19, thereby pushing the push plate 17 to move toward the limit plate 6 to clamp the test block. Effect: the top of the base 1 is fixedly connected with support plates 7 on both sides of the support tube 10, one side of the two support plates 7 is fixedly connected with threaded sleeves 8, the inner sides of the two threaded sleeves 8 are threadedly connected with threaded rods 9, and the limiting plate 6 is fixedly connected to one end of the two threaded rods 9. By twisting the threaded sleeves 8 at the same time, the two threaded rods 9 inside can be moved at the same time, thereby pushing the limiting plate 6 to move, so as to adjust its initial position. Therefore, when the test block is against the limiting plate 6, the test block and the saw blade 13 will have different relative positions, so the test block can be cut in a fixed manner.

[0041] Working principle: When sawing autoclaved aerated concrete, the test block can be placed on the saw table 2, and then the two threaded sleeves 8 can be twisted and rotated at the same time, so that the two threaded rods 9 can move at the same time, thereby pushing and pulling the limit plate 6 and moving it. In this way, the initial position of the limit plate 6 can be adjusted according to the specification requirements of the test block sawing, so as to adjust the relative position between the test block and the saw blade 13 after the test block abuts against the limit plate 6, thereby ensuring the stereotyped cutting effect of the test block;

[0042] After adjusting the installation position of the rear test block, the handle 19 can be twisted, and the handle 19 drives the stud 16 to move so that the push plate 17 can move in the direction of the limit plate 6, so that the test block can be clamped and fixed on the saw table 2; and after the test block is fixed, the metal shaping hose on the support tube 10 can be bent to adjust the position and direction of the wind cover 15 to the place where it contacts the test block on the saw blade 13;

[0043] After that, the motor 32 and the fan 33 can be started. The motor 32 drives the rotating shaft to rotate through the belt 21 and the two pulleys 20. The rotating shaft drives the driven wheel 23 to rotate through the driving wheel 22. The driven wheel 23 can drive the movable pile 31 and the turntable 34 to rotate. When the movable pile 31 performs a circular motion, it will continuously push the fixed frame 30 and drive the saw blade 13 to continuously move up and down. When the turntable 34 rotates, it can intermittently move the fixed pile 4 through the lever 28, so that the saw table 2 moves slowly. The saw table 2 drives the test block to move so that it gradually approaches the saw blade 13, so as to achieve a stereotyped cutting effect of the test block.

[0044] In this process, the operation of the fan 33 can generate negative pressure in the connecting pipe 14, so the wind hood 15 can continuously suck the dust and fine particles generated when cutting the test block, and store them in the dust bag 27 to facilitate subsequent unified processing.

[0045] Example 2

[0046] See attached Figure 5 The present application provides a shaped sawing device for concrete performance testing. Compared with Example 1, in order to facilitate the control of the moving speed of the saw table 2, a plurality of threaded grooves are equidistantly provided on the outer side of the turntable 34. The lever 28 includes a bolt 2801 and a rod head 2802. The bolt 2801 is threadedly connected to the turntable 34 at the threaded groove. The rod head 2802 is fixedly connected to one end of the bolt 2801. By twisting the rod head 2802, the bolt 2801 can be adjusted to enter the turntable 34 or extend from the inside thereof. Therefore, when the rod head 2802 is adjusted to rise to a height that touches the fixed pile 4, the frequency of pushing the fixed pile 4 can be controlled by selecting the number of levers 28, thereby controlling the moving speed of the saw table 2. Conversely, when the rod head 2802 is adjusted to fall to a point where it cannot touch the fixed pile 4, it can no longer push the saw table 2 to move.

[0047] Working principle: In the process of using the rotation of the turntable 34 to make the lever 28 push the fixed pile 4 and thus move the saw table 2, the bolt 2801 can be allowed to enter the turntable 34 or extend from the inside by twisting the rod head 2802, so that the height of the rod head 2802 can be controlled. When adjusting its height, the rotation of the turntable 34 can make the lever 28 contact with the fixed pile 4, thereby pushing the saw table 2 to move, otherwise it cannot contact with the fixed pile 4; accordingly, by selecting different numbers of levers 28, the frequency of pushing the fixed pile 4 can be controlled, so as to achieve the effect of controlling the moving speed of the saw table 2.

[0048] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A shaping sawing device for concrete performance testing, comprising a base (1) and a saw blade (13), characterized in that: A sawing table (2) is provided at the top of the base (1), and a driving mechanism is provided inside the base (1); the sawing table (2) is used to install a test block, and the driving mechanism is used to drive the saw blade (13) to operate and the sawing table (2) to move; A limit plate (6) and a push plate (17) are respectively provided on one side of the top of the base (1) and the other side of the top of the sawing table (2); the limit plate (6) is movably connected to the base (1), and a plurality of rollers (5) are provided on one side of the limit plate (6); the sawing table (2) clamps the test block through the push plate (17) and the limit plate (6); the driving mechanism comprises a reciprocating moving component and an intermittent moving component; the reciprocating moving component comprises a driven wheel (23) and a fixed frame (30); the saw blade (13) is fixedly connected to the fixed frame (30) The driven wheel (23) is rotatably connected to a movable pile (31) at the outer side of the end surface, and the movable pile (31) is slidably connected to the inner side of the fixed frame (30). The driven wheel (23) drives the fixed frame (30) to move up and down through the movable pile (31). The intermittent moving component includes a turntable (34). The outer side of the turntable (34) is fixedly connected to a lever (28). One side of the saw table (2) is fixedly connected to a plurality of fixed piles (4), and the turntable (34) pushes the fixed piles (4) through the lever (28).

2. A shaping sawing device for concrete performance testing according to claim 1, characterized in that: The top inner wall of the base (1) is fixedly connected to a connecting plate (29) at one side of the partition (26), a circular through hole is opened at the bottom end of the connecting plate (29), and a connecting shaft is rotatably connected to the connecting plate (29) at the circular through hole, the driven wheel (23) and the turntable (34) are respectively connected to the two ends of the connecting shaft through keys, a motor (32) is fixedly connected to the inner wall of one side of the base (1), and a rotating shaft is rotatably connected to one side of the bottom inner wall of the base (1), the bottom end of the output shaft of the motor (32) and the outside of the rotating shaft are both connected to pulleys (20) through keys, and the outsides of the two pulleys (20) are provided with the same belt (21).

3. A shaping sawing device for concrete performance testing according to claim 2, characterized in that: The top end of the rotating shaft is connected to a driving wheel (22) through a key, the driving wheel (22) and the driven wheel (23) are both bevel gears, and the driving wheel (22) meshes with the driven wheel (23), the inner wall of the bottom end of the base (1) is fixedly connected to sliding rods (24) on both sides of the driven wheel (23), the outsides of the two sliding rods (24) are sleeved with sliding sleeves (25), the fixed frame (30) is fixedly connected between the two sliding sleeves (25), the top end of the base (1) is provided with a sawing groove between the two sliding rods (24), and the top end of the saw blade (13) extends to the outside of the base (1) at the sawing groove.

4. A shaping sawing device for concrete performance testing according to claim 3, characterized in that: The top of the base (1) is provided with a rectangular opening at a side away from the motor (32), and the top of the base (1) is fixedly connected to a support tube (10) at the rectangular opening. The top of the base (1) is fixedly connected to a plurality of guide rails (3) at an equal distance at a side away from the support tube (10). The bottom of the sawing table (2) is provided with a plurality of slide grooves, the number of the guide rails (3) and the slide grooves are the same and correspond one to one. The sawing table (2) is slidably connected to the guide rails (3) at the slide grooves. The sawing table (2) is provided with a strip opening at the sawing groove, and the saw blade (13) passes through the sawing table (2) at the strip opening.

5. A shaping sawing device for concrete performance testing according to claim 4, characterized in that: A dust bag (27) is provided inside the base (1) at a side away from the motor (32); an air inlet is provided at the top of the dust bag (27); the dust bag (27) is fixedly connected to a connecting pipe (14) at the air inlet; an air suction port is provided on one side of the dust bag (27); the dust bag (27) is fixedly connected to a filter at the air suction port; a mounting port is provided on a side of the base (1) close to the dust bag (27); the dust bag (27) is fixedly connected to a fan (33) at the mounting port; the fan (33) is fixedly connected to the filter.

6. A shaping sawing device for concrete performance testing according to claim 5, characterized in that: A circular opening is provided at the bottom end of one side of the support tube (10) close to the saw table (2); one end of the connecting tube (14) extends to the inside of the support tube (10) at the rectangular opening, and extends to the outside of the support tube (10) at the circular opening; an end of the connecting tube (14) outside the support tube (10) is fixedly connected to a wind hood (15); the connecting tube (14) is a hose, and a metal shaped hose is fixedly connected to the side wall of the support tube (10) outside the connecting tube (14); and the saw teeth on the saw blade (13) are unidirectional saw teeth.

7. A shaping sawing device for concrete performance testing according to claim 4, characterized in that: The top end of the support tube (10) is fixedly connected to a top plate (11), and one side of the bottom end of the top plate (11) is fixedly connected to two cover shells (12). A guide rod (35) is fixedly connected between the top inner wall and the bottom inner wall of the two cover shells (12), and the outside of the two guide rods (35) is sleeved with a guide sleeve (37). The top end of the saw blade (13) extends between the two cover shells (12), and the top end of the saw blade (13) is fixedly connected to a connecting rod (38), and the two ends of the connecting rod (38) are respectively fixedly connected to the two guide sleeves (37), and a spring (36) is fixedly connected between the guide sleeve (37) and the top inner wall and the bottom inner wall of the cover shell (12).

8. The shaping sawing equipment for concrete performance testing according to claim 4, characterized in that: A fixing plate (18) is fixedly connected to the top of the saw table (2) at a side away from the support tube (10); a threaded through hole is provided on the plate body of the fixing plate (18); a stud (16) is threadedly connected to the fixing plate (18) at the threaded through hole; the push plate (17) is L-shaped and fixedly connected to one end of the stud (16); a handle (19) is fixedly connected to the other end of the stud (16); a supporting plate (7) is fixedly connected to the top of the base (1) at both sides of the support tube (10); a threaded sleeve (8) is fixedly connected to one side of the two supporting plates (7); a threaded rod (9) is threadedly connected to the inner side of the two threaded sleeves (8); and the limit plate (6) is fixedly connected to one end of the two threaded rods (9).

9. The shaping sawing equipment for concrete performance testing according to claim 1, characterized in that: The outer side of the rotating disk (34) is provided with a plurality of thread grooves at equal intervals. The shifting rod (28) comprises a bolt (2801) and a rod head (2802). The bolt (2801) is threadedly connected to the rotating disk (34) at the thread groove, and the rod head (2802) is fixedly connected to one end of the bolt (2801).

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