A drop-weight impact testing machine and testing method for building material testing

Abstract

The present invention relates to the technical field of pipe inspection, and specifically to a drop-hammer impact testing machine and test method for building material inspection, comprising a placement box, wherein the interior of the placement box is rotatably connected to a lifting handle, one end of the lifting handle is meshingly connected to a winding rod, the bottom of the winding rod is movably connected to a bottom position rotating group, and the surface of the winding rod is threadedly connected to a lifting plate. The drop-hammer impact testing machine and test method for building material inspection, through the movable long rod in the hammer rod of the hammer body, can make the movable long rod telescope hollow inside when the collision block at the bottom of the hammer head collides with the pipe, increase the stiffness of the rope, and reduce the degree of shaking of the hammer body. At the same time, the equipment has a mechanical structure for shock absorption and prevention of secondary impact, which enhances the equipment maintenance and long-term use standards, and the exhaust net rod of the hammer head can form an air suction structure with the impact, and absorb the debris accordingly to reduce diffusion.

Description

Technical Field

[0001] The invention relates to the technical field of pipe testing, in particular to a drop hammer impact testing machine and a testing method for building material testing. Background Art

[0002] Generally speaking, plastic products have the characteristics of plasticity and creep, so the conduit made of plastic will deform when subjected to external force. Impact resistance is an important indicator for evaluating the radial external force characteristics of the pipe. At present, the main features of the commonly used testing machine for testing the impact resistance of plastic pipes are digital display, microprocessor program control, and electromagnetic braking to prevent secondary impact.

[0003] Among them, the drop hammer impact testing machine is mainly used to perform drop hammer impact tests on non-metallic materials or products such as plastic pipes, fittings, and plates. It is a testing instrument used to evaluate the impact resistance of materials.

[0004] However, the existing drop hammer impact tester has a drop hammer as one of the main test components. When impacting the pipe, the traction rope is made of a relatively soft material. When a collision occurs, the hammer itself will be offset and shaken, causing wear on the moving inner wall of the pipe. The equipment maintenance cost and frequency are relatively frequent, which increases the equipment cost. The pipe placed when falling lacks certain fixing and shock-absorbing devices. At the same time, when a collision occurs, there will be fragments at the collision point between the drop hammer and the pipe, and the broken fragments will cause wear on the inside of the placement box, which will be very inconvenient to clean. In addition, the existing device for preventing secondary impact is program-controlled. Under multiple internal vibrations, the detection and control will not be timely enough, and people's usage needs cannot be met well. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a drop hammer impact testing machine and a testing method for building material testing, which solves the problems raised in the above background technology that when a collision occurs, the hammer body itself will be offset and shaken, causing wear on the moving inner wall of the pipeline, and the pipes placed when falling lack certain fixing and shock-absorbing devices. At the same time, when a collision occurs, there will be fragments at the collision point between the drop hammer and the pipe, and the broken fragments will cause wear on the inside of the placement box.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A drop hammer impact tester for building material testing, comprising a placement box, wherein the placement box is rotatably connected with a lifting handle inside, one end of the lifting handle is meshingly connected with a winding rod, the bottom of the winding rod is movably connected with a bottom position rotation group, the surface of the winding rod is threadedly connected with a lifting plate, the inside of the placement box is fixedly connected with an inner frame, one side of the placement box is movably connected with a front opening door, and the other side of the placement box is movably connected with a back opening door, the top of the placement box is fixedly connected with a sealing plate, the top of the sealing plate is fixedly connected with a rectangular frame, the inside of the rectangular frame is slidably connected with an anti-falling telescopic plate, the top of the rectangular frame is fixedly connected with a long tube, the inside of the long tube is movably connected with a hanging hammer valve, the top of the long tube is fixedly connected with a top frame, the inside of the long tube is slidably connected with a drop hammer rod, the bottom of the drop hammer rod is fixedly connected with a drop hammer head, and a balancing weight, a lifting chain, a lifting gear set, a height measuring code disk, a lifting motor, a limit switch and a hammer-off device are provided between the long tube and the top frame;

[0007] The bottom of the drop hammer rod is fixedly connected with a guide circular plate, the interior of the drop hammer rod is fixedly connected with a pneumatic bolt, the interior of the pneumatic bolt is movably connected with a propulsion rod, the surface of the drop hammer rod is movably connected with an adjustment block, the top of the drop hammer rod is threadedly connected with a threaded joint, the top of the drop hammer rod is clamped with a rope connecting rod, and the top of the rope connecting rod is fixedly connected with a hollow rope;

[0008] The falling hammer head is slidably connected to a collision block inside, the inner side of the collision block is fixedly connected to a rising rod, the side of the rising rod is fixedly connected to a linkage gear rod, both sides of the linkage gear rod are meshingly connected to main rotating teeth, one side of the main rotating teeth is fixedly connected to a rocking wheel, an intermediate rod is movably connected between the main rotating teeth and the rocking wheel, the other side of the rocking wheel is fixedly connected to a torsion wheel, the surface of the rocking wheel is movably connected to a follow rod, and the bottom of the follow rod is fixedly connected to an air suction net rod.

[0009] The top of described lifting plate is fixedly connected with an inner square frame, and the inner square frame is movably connected with a rotating bearing, one side of the rotating bearing is fixedly connected with a rotating handle, and the other side of the rotating bearing is fixedly connected with a vertical rotating gear, the bottom of the vertical rotating gear is meshed with a horizontal rotating gear, the side of the horizontal rotating gear is meshed with a gear stabilizing rod, the surface of the gear stabilizing rod is meshed with a connecting cross rod, the internal sliding connection of the connecting cross rod is limited to a fixed position rod, and the side of the connecting cross rod is fixedly connected with an inner pressure rod.

[0010] Optionally, the inner frame is fixedly connected with a support arm, the support arm is fixedly connected with a vertical frame, the inner side of the vertical frame is movably connected with a rocker arm, one end of the rocker arm is movably connected with a pressure plate, the bottom of the pressure plate is fixedly connected to a limiting telescopic rod, one end of the rocker arm is rotatably connected to a guard frame, the guard frame is movably connected with a baffle rod, one end of the baffle rod is fixedly connected to a limiting turntable, the side of the limiting turntable is fixedly connected with a protrusion, the bottom of the guard frame is fixedly connected with a pull rope, the inner frame is fixedly connected with a connecting frame, the inner frame is fixedly connected with a movable long frame, one end of the pull rope is fixedly connected with a movable roller rod, the movable long frame is movably connected with a spring plate, and the inner frame is fixedly connected with a stool support frame.

[0011] Optionally, one end of the lifting handle is set as an inclined rotating tooth, and the lifting handle is meshed and connected to a winding rod on one side, and the bottom of the winding rod is connected to the bottom rotating group through a transmission belt, and two winding rods are set.

[0012] Optionally, a movable telescopic structure is provided between the pneumatic frame and the lifting plate, the bottom of the side frame is provided as a shock-absorbing rod structure, and the interior of the pneumatic frame is provided as a hollow structure, wherein the hollow pipe is connected to the valve bolt.

[0013] Optionally, a connecting block is provided between the gear stabilizing rod and the limiting rod and the V-shaped pipe rack, and movable bearing structures are provided at the upper and lower ends of the gear stabilizing rod and the limiting rod, and a side groove slider is provided between the limiting rod and the connecting cross bar.

[0014] Optionally, the inner side of the vertical frame is configured as a fixed rod structure, and the surface of the fixed rod is configured as a rotating structure with the rocker arm and the limiting turntable respectively.

[0015] Optionally, a slideway structure is provided between the movable roller and the movable long frame, and the surface of the pull rope fixedly connected to the movable roller moves through the spring plate, and a telescopic spring structure is provided between the spring plate and the movable long frame.

[0016] Optionally, a buffer pad structure is provided on the top of the stool support frame, and a semicircular pipe structure is provided between one side of the stool support frame and the limiting turntable.

[0017] Optionally, the test method of the drop weight impact tester for building material testing comprises the following steps:

[0018] S1. When in use, a speed regulating motor is installed on the long tube and top frame at the top of the sealing plate of the testing machine. The motor is connected to the hanging hammer device through a sprocket and a chain. The hanging hammer device hangs and lifts the drop hammer. After the drop hammer is lifted to the set height, it stops automatically. The pipe to be tested is placed on the V-shaped pipe rack on the lifting plate, and then the rotating handle is turned to rotate the rotating bearing of the inner square frame, and the connected vertical rotating gear and the horizontal rotating gear rotate synchronously. In the limiting groove structure of the limiting fixed rod and the connecting cross rod, the connecting cross rod moves up and down along the gear stabilizing rod, and the inner pressure rod connected to the connecting cross rod presses down and fixes the pipe;

[0019] S2, then turn the lifting handle on the side of the placement box to rotate the meshing connected winding rod and the bottom position rotating group, and then the lifting plate moves upward along the winding rod, and when the hammer rod drives the hammer head to fall, the guide circular plate pushes the pressure plate, and the rocker arm movably connected to the limit telescopic rod and the pressure plate can move horizontally, and the guard frame connected to the rocker arm is lifted up. When it reaches the specified position, the guard frame pulls the stop rod and the limit turntable to rotate;

[0020] S3, at the same time, the convex block on one side moves to the buffer pad of the stool support frame to fix the position, and the pull rope at the bottom of the guard frame moves along the connecting frame, pulling the movable roller in the movable long frame to move, and then squeezing the spring plate. When the collision block of the falling hammer head collides with the pipe, the impact force pushes the lifting plate to transmit the power to the air pressure frame, and the valve bolts around it open, and then the movable long rods of the upper frame and the lower frame are closed along the connecting shaft, and the side frame at the bottom of the wing plate is synchronously pressed;

[0021] S4. Then the collision block at the bottom of the falling hammer head drives the rising rod to move upward, and the connected linkage gear rod moves upward to make the main gear rotate, and the connected rocker wheel and torque wheel rotate together. When the rod rises, it drives the vacuum net rod to be pulled out from the falling hammer head, and the surrounding gas shrinks to absorb debris within a certain range. In the process of the rising rod moving upward, the propulsion rod in the pneumatic plug is pushed to move upward quickly, along the hollow pipe in the falling hammer rod to the hollow rope, thereby increasing the hardness and reducing the shaking. The threaded joint on the surface of the falling hammer rod can fix the active position of the weight.

[0022] The present invention provides a drop hammer impact testing machine for building material testing, which has the following beneficial effects:

[0023] 1. The drop hammer impact tester for building material inspection uses a gas pressure frame and a valve bolt structure. When the hammer falls to collide with the pipe, the V-shaped pipe rack subjected to the impact force is transmitted to the bottom, and the gas flows into the valve bolts around it. Then, after the lifting plate sinks to a certain extent, the connecting rod and the rotating assembly will be lowered at the same time. At the same time, the bottom of the wing plate connected to the side of the lifting plate is also shock-absorbing with the connected shock-absorbing rod to prevent the lifting plate from being disengaged from the winding rods on both sides due to the vibration caused by the collision.

[0024] 2. The drop hammer impact testing machine for building material testing can adjust the height of the pressure rod in the V-shaped pipe rack by turning the handle, so that the pressure rod can fit the inner wall of the pipe accordingly, adapt to pipes of different sizes, keep the pipe stable and avoid shaking, especially after the pipe is hit by the hammer head, the impact force is more likely to cause position deviation, reduce the error caused by impact force detection, and avoid certain dangers caused by the rolling of the pipe during impact.

[0025] 3. The drop hammer impact testing machine for building material inspection can guide the circular plate to push the pressure plate when the hammer falls through the limit turntable and rocker arm connected by the support arm of the inner frame. After it drops to a certain extent, the rocker arm drives the guard frame to rotate. When it reaches a certain position, the baffle rod inside the guard frame drives the limit turntable to rotate at the same time, and the protrusion and the support frame are limited and blocked. On the other hand, the spring structure in the movable long frame will push back the movable roller after the impact, continuously increasing the resistance to prevent secondary impact.

[0026] 4. The drop hammer impact testing machine for building material inspection uses a movable long rod in the hammer rod of the hammer body. When the collision block at the bottom of the hammer head collides with the pipe, the movable long rod can be extended and retracted inside the hollow part, thereby increasing the stiffness of the rope, reducing the shaking degree of the hammer body, and avoiding collision and wear between the hammer body and the inner wall of the field pipe, so as to effectively protect the descending slide and reduce maintenance costs.

[0027] 5. The drop hammer impact tester for building material testing uses the internal space of the hammer head to provide a certain amount of moving space for the collision block when an impact occurs. The connecting rod inside the collision block can, on the one hand, deliver gas pressure and lifting force to lift the long rod in the pneumatic plug; on the other hand, the gear rod connected to the surface of the connecting rod in the collision block drives the gear structures on both sides to move synchronously, so that the air suction net rod of the hammer head can move backward with the impact, and the formed empty layer can form an air suction structure to absorb the debris accordingly, reduce diffusion, avoid wear of the inner wall, and reduce cleaning pressure.

[0028] 6. The drop hammer impact tester for building material testing is equipped with a speed regulating motor and a reducer on the top of the impact machine, so that the chain lifts the hammer body, and the other end of the chain is equipped with a weight body, which can properly balance the weight and accurately position. The drop hammer is a split structure, and the weight is counterbalanced by replacing hammer heads and weights of different specifications. The releaser adopts electromagnetic release, which has reliable locking, flexible release, and convenient control. The impact hammer body and releaser are guided by a round tube, with small resistance and accurate positioning. The top optical code disk automatically detects the impact height, and automatically stops when it reaches the encounter height, and accurately positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a front-view stereoscopic structural diagram of the drop-hammer impact testing machine for building material testing;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the drop hammer impact testing machine for building material testing from the back;

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of the left side view inside the placement box of the drop weight impact testing machine for building material testing;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the right side of the placement box of the drop weight impact testing machine for building material testing;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the interior of the placement box of the drop hammer impact testing machine for building material testing;

[0034] Figure 6 This is a schematic diagram of the left-view stereoscopic structure of the secondary impact protection of the drop-weight impact testing machine for building material testing;

[0035] Figure 7 It is a schematic diagram of the right-view stereoscopic structure of the secondary impact protection of the drop-weight impact testing machine for building material testing;

[0036] Figure 8 This is a schematic diagram of the three-dimensional structure of the pipe rack of the drop hammer impact testing machine for building material testing;

[0037] Fig. 9 This is a schematic diagram of the three-dimensional structure of the pipe rack of the drop hammer impact testing machine for building material testing when viewed from above;

[0038] Fig.10 This is a schematic diagram of the internal structure of the drop hammer pipeline of the drop hammer impact testing machine for building material testing;

[0039] Fig.11 This is a schematic diagram of the internal structure of the pressure plate group of the drop hammer impact testing machine for building material testing from a side view;

[0040] Fig.12This is a schematic diagram of the overall internal structure of the drop hammer of the drop hammer impact testing machine for building material testing;

[0041] Fig.13 This is a drop weight impact tester for building materials testing Fig.12 A in the figure is an enlarged structural diagram.

[0042] In the figure: 1, placing box; 2, lifting handle; 3, winding rod; 4, bottom rotation group; 5, lifting plate; 501, air pressure frame; 502, valve bolt; 503, upper rack; 504, movable long rod; 505, connecting shaft; 506, side rack; 507, wing plate; 508, lower rack; 509, V-shaped pipe rack; 5010, inner square frame; 5011, rotating bearing; 5012, rotating handle; 5013, vertical gear; 5014, horizontal gear; 5015, gear stabilizing rod; 5016, connecting crossbar; 5017, limit rod; 5018, inner pressure rod; 6, inner frame; 601, support arm; 602, vertical frame; 603, rocker arm; 604, pressure plate; 605, limit telescopic rod; 606, guard frame; 607, stop rod; 608, limit turntable; 609, bump ; 6010, pull rope; 6011, connecting frame; 6012, spring plate; 6013, movable roller rod; 6014, movable long frame; 6015, stool support frame; 7, front door; 8, back door; 9, cover plate; 10, rectangular frame; 11, anti-fall telescopic plate; 12, long tube; 13, hanging hammer valve; 14, top frame; 15, hammer drop rod; 1501, guide round plate; 1502, pneumatic bolt; 1503, push rod; 1504, adjustment block; 1505, threaded joint; 1506, rope connecting rod; 1507, hollow rope; 16, drop hammer head; 1601, collision block; 1602, rising rod; 1603, linkage gear rod; 1604, main rotating gear; 1605, middle rod; 1606, rocker; 1607, torque wheel; 1608, follow rod; 1609, vacuum net rod. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0044] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and 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 orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figures 1 to 13 The present invention provides a technical solution: a drop hammer impact tester for building material testing, comprising a placement box 1, wherein the placement box 1 is rotatably connected to a lifting handle 2, one end of the lifting handle 2 is meshingly connected to a winding rod 3, the bottom of the winding rod 3 is movably connected to a bottom position rotating group 4, the surface of the winding rod 3 is threadedly connected to a lifting plate 5, the placement box 1 is fixedly connected to an inner frame 6, one side of the placement box 1 is movably connected to a front opening door 7, the other side of the placement box 1 is movably connected to a back opening door 8, the top of the placement box 1 is fixedly connected to a sealing plate 9, and the sealing plate 9 is fixedly connected with a rectangular frame 10 on the top, and an anti-fall telescopic plate 11 is slidably connected inside the rectangular frame 10. A long tube 12 is fixedly connected with the top of the rectangular frame 10, and a hammer valve 13 is movably connected inside the long tube 12. A top frame 14 is fixedly connected with the top of the long tube 12, and a drop hammer rod 15 is slidably connected inside the long tube 12. A drop hammer head 16 is fixedly connected to the bottom of the drop hammer rod 15. A balancing weight, a lifting chain, a lifting gear set, a height measuring code disk, a lifting motor, a limit switch and a hammer-off device are arranged between the long tube 12 and the top frame 14;

[0047] The bottom of the hammer rod 15 is fixedly connected with a guide circular plate 1501, the inside of the hammer rod 15 is fixedly connected with a pneumatic bolt 1502, the inside of the pneumatic bolt 1502 is movably connected with a propulsion rod 1503, the surface of the hammer rod 15 is movably connected with an adjustment block 1504, the top of the hammer rod 15 is threadedly connected with a threaded joint 1505, the top of the hammer rod 15 is clamped with a rope connecting rod 1506, and the top of the rope connecting rod 1506 is fixedly connected with a hollow rope 1507;

[0048] The inside of the drop hammer head 16 is slidably connected with a collision block 1601, the inner side of the collision block 1601 is fixedly connected with a rising rod 1602, the side of the rising rod 1602 is fixedly connected with a linkage gear rod 1603, both sides of the linkage gear rod 1603 are meshingly connected with main rotating teeth 1604, one side of the main rotating teeth 1604 is fixedly connected with a rocking wheel 1606, an intermediate rod 1605 is movably connected between the main rotating teeth 1604 and the rocking wheel 1606, the other side of the rocking wheel 1606 is fixedly connected with a torsion wheel 1607, the surface of the rocking wheel 1606 is movably connected with a follow rod 1608, and the bottom of the follow rod 1608 is fixedly connected with an air suction net rod 1609;

[0049] The bottom of the lifting plate 5 is fixedly connected to a gas pressure frame 501, the side of the gas pressure frame 501 is fixedly connected to a valve bolt 502, the bottom of the lifting plate 5 is fixedly connected to an upper frame 503, the interior of the upper frame 503 is rotatably connected to a movable long rod 504, one end of the movable long rod 504 is rotatably connected to a connecting shaft 505, the side of the connecting shaft 505 is fixedly connected to a side frame 506, the top of the side frame 506 is fixedly connected to a wing plate 507, the other end of the movable long rod 504 is movably connected to a lower frame 508, the top of the lifting plate 5 is fixedly connected to a V-shaped pipe frame 509, and the interior of the lifting plate 5 is fixedly connected to an inner square frame 506. 010, the inner square frame 5010 is internally movably connected with a rotating bearing 5011, one side of the rotating bearing 5011 is fixedly connected with a rotating handle 5012, the other side of the rotating bearing 5011 is fixedly connected with a vertical rotating gear 5013, the bottom of the vertical rotating gear 5013 is meshingly connected with a horizontal rotating gear 5014, the side of the horizontal rotating gear 5014 is meshingly connected with a gear stabilizing rod 5015, the surface of the gear stabilizing rod 5015 is meshingly connected with a connecting cross bar 5016, the internal sliding connection of the connecting cross bar 5016 is a limited position fixing rod 5017, and the side of the connecting cross bar 5016 is fixedly connected with an internal pressure rod 5018.

[0050] The inner frame 6 is fixedly connected with a support arm 601, the support arm 601 is fixedly connected with a vertical frame 602, the inner side of the vertical frame 602 is movably connected with a rocker arm 603, one end of the rocker arm 603 is movably connected with a pressure plate 604, the bottom of the pressure plate 604 is fixedly connected with a limited telescopic rod 605, one end of the rocker arm 603 is rotatably connected with a protective frame 606, the protective frame 606 is movably connected with a blocking rod 607, one end of the blocking rod 607 is fixedly connected with a limited turntable 608, the side of the limited turntable 608 is fixedly connected with a protrusion 609, the bottom of the protective frame 606 is fixedly connected with a pull rope 6010, the inner frame 6 is fixedly connected with a connecting frame 6011, the inner frame 6 is fixedly connected with a movable long frame 6014, one end of the pull rope 6010 is fixedly connected with a movable roller rod 6013, the movable long frame 6014 is movably connected with a spring plate 6012, and the inner frame 6 is fixedly connected with a stool support frame 6015.

[0051] One end of the lifting handle 2 is set as an inclined rotating tooth, and the lifting handle 2 is meshed and connected to the winding rod 3 on one side, and the bottom of the winding rod 3 is connected to the bottom rotating group 4 through a transmission belt, and two winding rods 3 are set.

[0052] A movable telescopic structure is provided between the air pressure frame 501 and the lifting plate 5 , and the bottom of the side frame 506 is provided as a shock-absorbing rod structure, and the interior of the air pressure frame 501 is provided as a hollow structure, wherein the hollow pipe is connected to the valve bolt 502 .

[0053] A connecting block is provided between the gear stabilizing rod 5015 and the limiting rod 5017 and the V-shaped pipe frame 509, and a movable bearing structure is provided at the upper and lower ends of the gear stabilizing rod 5015 and the limiting rod 5017, and a side groove slider is provided between the limiting rod 5017 and the connecting cross bar 5016.

[0054] The inner side of the vertical frame 602 is configured as a fixed rod structure, and the surface of the fixed rod is configured as a rotating structure with the rocker arm 603 and the limit turntable 608 respectively.

[0055] A slideway structure is provided between the movable roller 6013 and the movable long frame 6014 , and the surface of the pull rope 6010 fixedly connected to the movable roller 6013 movably passes through the spring plate 6012 , and a telescopic spring structure is provided between the spring plate 6012 and the movable long frame 6014 .

[0056] A buffer pad structure is provided on the top of the stool support frame 6015, and a semicircular pipe structure is provided between one side of the stool support frame 6015 and the limiting turntable 608.

[0057] A test method of a drop weight impact tester for building material testing comprises the following steps:

[0058] S1. When in use, a speed regulating motor is installed on the long tube 12 and the top frame 14 on the top of the test machine sealing plate 9. The motor is connected to the hanging hammer device through a sprocket and a chain. The hanging hammer device hangs and lifts the drop hammer. After the drop hammer is lifted to a set height, it stops automatically. The pipe to be tested is placed on the V-shaped pipe rack 509 on the lifting plate 5, and then the rotating handle 5012 is turned to rotate the rotating bearing 5011 of the inner square frame 5010, and the connected vertical rotating gear 5013 and the horizontal rotating gear 5014 rotate synchronously. In the limiting groove structure of the limiting fixed rod 5017 and the connecting cross bar 5016, the connecting cross bar 5016 moves up and down along the gear stabilizing rod 5015, and the inner pressure rod 5018 connected to the connecting cross bar 5016 presses down and fixes the pipe;

[0059] S2, then rotate the lifting handle 2 on the side of the placement box 1 to rotate the meshing connected winding rod 3 and the bottom position rotating group 4, and then the lifting plate 5 moves upward along the winding rod 3, and when the hammer rod 15 drives the hammer head 16 to fall, when the guide circular plate 1501 pushes the pressing plate 604, the rocker arm 603 movably connected to the limiting telescopic rod 605 and the pressing plate 604 can move in translation, and the guard frame 606 connected to the rocker arm 603 is lifted up. When reaching the specified position, the guard frame 606 pulls the stop rod 607 and the limiting turntable 608 to rotate;

[0060] S3, at the same time, the protrusion 609 on one side moves to the buffer pad of the stool support frame 6015 to be fixed in position, and the pull rope 6010 at the bottom of the guard frame 606 moves along the connecting frame 6011, pulling the movable roller 6013 in the movable long frame 6014 to move, and then squeezing the spring plate 6012, when the collision block 1601 of the drop hammer head 16 collides with the pipe, the impact force pushes the lifting plate 5 to transmit the power to the air pressure frame 501, and the valve bolts 502 around it open, and then the movable long rods 504 of the upper frame 503 and the lower frame 508 are closed along the connecting shaft 505, and the side frame 506 at the bottom of the wing plate 507 is synchronously pressed;

[0061] S4. Then the collision block 1601 at the bottom of the hammer head 16 drives the rising rod 1602 to move upward, and the connected linkage gear rod 1603 moves upward to rotate the main gear 1604, and the connected rocker wheel 1606 and torque wheel 1607 rotate together. When the following rod 1608 rises, it drives the vacuum net rod 1609 to be pulled out from the hammer head 16, and absorbs a certain range of debris when the surrounding gas contracts. In the process of the rising rod 1602 moving upward, the propulsion rod 1503 in the pneumatic bolt 1502 is pushed to move upward quickly, along the hollow pipe in the hammer rod 15 to the hollow rope 1507, thereby increasing the hardness and reducing the shaking. The threaded joint 1505 on the surface of the hammer rod 15 can fix the active position of the weight.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drop weight impact testing machine for testing building materials, comprising a placement box (1), characterized in that: The storage box (1) is internally rotatably connected to a lifting handle (2), one end of the lifting handle (2) is meshingly connected to a winding rod (3), the surface of the winding rod (3) is threadedly connected to a lifting plate (5), the bottom of the winding rod (3) is movably connected to a bottom rotation group (4), the bottom of the winding rod (3) is connected to the bottom rotation group (4) by a conveyor belt, and the winding rod (3) is provided with two, the top of the lifting plate (5) is fixedly connected to a V-shaped pipe rack (509), the interior of the storage box (1) is fixedly connected to an inner frame (6), one side of the storage box (1) is movably connected to a front opening door (7), the other side of the storage box (1) is movably connected to a back opening door (8), the top of the storage box (1) A sealing plate (9) is fixedly connected, a rectangular frame (10) is fixedly connected to the top of the sealing plate (9), an anti-fall telescopic plate (11) is slidably connected inside the rectangular frame (10), a long tube (12) is fixedly connected to the top of the rectangular frame (10), a hammer valve (13) is movably connected inside the long tube (12), a top frame (14) is fixedly connected to the top of the long tube (12), a drop hammer rod (15) is slidably connected inside the long tube (12), a drop hammer head (16) is fixedly connected to the bottom of the drop hammer rod (15), and a balancing weight, a lifting chain, a lifting gear set, a height measuring code disk, a lifting motor, a limit switch and a hammer removal device are provided between the long tube (12) and the top frame (14); The bottom of the drop hammer rod (15) is fixedly connected to a guide circular plate (1501), the interior of the drop hammer rod (15) is fixedly connected to a pneumatic bolt (1502), the interior of the pneumatic bolt (1502) is movably connected to a propulsion rod (1503), the surface of the drop hammer rod (15) is movably connected to an adjustment block (1504), the top of the drop hammer rod (15) is threadedly connected to a threaded joint (1505), the top of the drop hammer rod (15) is clamped with a rope connecting rod (1506), and the top of the rope connecting rod (1506) is fixedly connected to a hollow rope (1507); The falling hammer head (16) is slidably connected to a collision block (1601) inside, the collision block (1601) is fixedly connected to an ascending rod (1602) on its inner side, the ascending rod (1602) is fixedly connected to a linkage gear rod (1603) on its side, the linkage gear rod (1603) is meshingly connected to main rotating teeth (1604) on both sides, one side of the main rotating teeth (1604) is fixedly connected to a rocking wheel (1606), an intermediate rod (1605) is movably connected between the main rotating teeth (1604) and the rocking wheel (1606), the other side of the rocking wheel (1606) is fixedly connected to a torque wheel (1607), the surface of the rocking wheel (1606) is movably connected to a follower rod (1608), and the bottom of the follower rod (1608) is fixedly connected to an air suction net rod (1609); An inner frame (6) is arranged at the upper part of the placement box (1), and a lifting plate (5) is arranged at the lower part of the placement box (1); a support arm (601) is fixedly connected to the inside of the inner frame (6); a vertical frame (602) is fixedly connected to the inside of the support arm (601); a rocker arm (603) is movably connected to the inner side of the vertical frame (602); one end of the rocker arm (603) is movably connected to a pressure plate (604); a limited telescopic rod (605) is fixedly connected to the bottom of the pressure plate (604); one end of the rocker arm (603) is rotatably connected to a protective frame (606); a stopper rod (607) is movably connected to the inside of the protective frame (606); One end of the blocking rod (607) is fixedly connected to a limit rotating disk (608), a protrusion (609) is fixedly connected to the side of the limit rotating disk (608), a pull rope (6010) is fixedly connected to the bottom of the protective frame (606), a connecting frame (6011) is fixedly connected to the interior of the inner frame (6), a movable long frame (6014) is fixedly connected to the interior of the inner frame (6), one end of the pull rope (6010) is fixedly connected to a movable rolling rod (6013), a spring plate (6012) is movably connected to the interior of the movable long frame (6014), and a stool support frame (6015) is fixedly connected to the interior of the inner frame (6); The inner side of the vertical frame (602) is configured as a fixed rod structure, and the surface of the fixed rod is configured as a rotating structure with the rocker arm (603) and the limit rotating disk (608) respectively; A slideway structure is provided between the movable roller bar (6013) and the movable long frame (6014), and the surface of the pull rope (6010) fixedly connected to the movable roller bar (6013) movably passes through the spring plate (6012), and a telescopic spring structure is provided between the spring plate (6012) and the movable long frame (6014); A buffer pad structure is provided on the top of the stool support frame (6015), and a semicircular pipe structure is provided between one side of the stool support frame (6015) and the limiting rotating disk (608).

2. A drop weight impact testing machine for building material testing according to claim 1, characterized in that: The bottom of the lifting plate (5) is fixedly connected to a pneumatic frame (501), the side of the pneumatic frame (501) is fixedly connected to a valve bolt (502), the bottom of the lifting plate (5) is fixedly connected to an upper frame (503), the interior of the upper frame (503) is rotatably connected to a movable long rod (504), one end of the movable long rod (504) is rotatably connected to a connecting shaft (505), the side of the connecting shaft (505) is fixedly connected to a side frame (506), the top of the side frame (506) is fixedly connected to a wing plate (507), the other end of the movable long rod (504) is movably connected to a lower frame (508), the interior of the lifting plate (5) is fixedly connected to an inner frame (5010), the inner The square frame (5010) is movably connected to a rotating bearing (5011) inside, a rotating handle (5012) is fixedly connected to one side of the rotating bearing (5011), a vertical rotating gear (5013) is fixedly connected to the other side of the rotating bearing (5011), the bottom of the vertical rotating gear (5013) is meshingly connected to a horizontal rotating gear (5014), the side of the horizontal rotating gear (5014) is meshingly connected to a gear stabilizing rod (5015), the surface of the gear stabilizing rod (5015) is meshingly connected to a connecting cross bar (5016), the interior of the connecting cross bar (5016) is slidably connected to a limiting fixed rod (5017), and the side of the connecting cross bar (5016) is fixedly connected to an inner pressure rod (5018).

3. A drop weight impact testing machine for building material testing according to claim 1, characterized in that: One end of the lifting handlebar (2) is provided with an inclined rotating tooth, and the lifting handlebar (2) is meshedly connected to a winding rod (3) on one side.

4. A drop weight impact testing machine for building material testing according to claim 2, characterized in that: A movable telescopic structure is provided between the air pressure frame (501) and the lifting plate (5), the bottom of the side frame (506) is provided as a shock-absorbing rod structure, and the interior of the air pressure frame (501) is provided as a hollow structure, wherein the hollow pipe is connected to the valve bolt (502).

5. The drop weight impact testing machine for building material testing according to claim 2, characterized in that: A connecting block is provided between the gear stabilizing rod (5015) and the limiting rod (5017) and the V-shaped pipe frame (509), and movable bearing structures are provided at the upper and lower ends of the gear stabilizing rod (5015) and the limiting rod (5017), and a side groove sliding block is provided between the limiting rod (5017) and the connecting cross bar (5016).

6. The test method of a drop weight impact tester for building material testing according to claim 2, comprising the following steps: S1. When in use, a speed regulating motor is installed on the long tube (12) and the top frame (14) at the top of the test machine sealing plate (9). The motor is connected to the hammer hanging device through a sprocket and a chain. The hammer hanging device hangs and lifts the drop hammer. After the drop hammer is lifted to a set height, it stops automatically. The pipe to be tested is placed on the V-shaped pipe rack (509) on the lifting plate (5). Then, the rotating handle (5012) is turned to rotate the rotating bearing (5011) of the inner square frame (5010). The connected vertical rotating gear (5013) and the horizontal rotating gear (5014) rotate synchronously. In the limiting groove structure of the limiting fixed rod (5017) and the connecting cross rod (5016), the connecting cross rod (5016) moves up and down along the gear stabilizing rod (5015), and the inner pressure rod (5018) connected to the connecting cross rod (5016) presses down and fixes the pipe; S2, then the lifting handle (2) on the side of the placement box (1) is rotated to rotate the meshing connected winding rod (3) and the bottom position rotating group (4), and then the lifting plate (5) moves upward along the winding rod (3). When the falling hammer rod (15) drives the falling hammer head (16) to fall, when the guiding circular plate (1501) pushes the pressing plate (604), the rocker arm (603) movably connected to the limiting telescopic rod (605) and the pressing plate (604) can move in translation, and the guard frame (606) connected to the rocker arm (603) is lifted. When reaching the specified position, the guard frame (606) pulls the stop rod (607) and the limiting rotating disk (608) to rotate; S3, at the same time, the protrusion (609) on one side moves to the buffer pad of the stool support frame (6015) to be fixed in position, and the pull rope (6010) at the bottom of the guard frame (606) moves along the connecting frame (6011), pulling the movable roller (6013) in the movable long frame (6014) to move, and then squeezes the spring plate (6012). When the collision block (1601) of the hammer head (16) collides with the pipe, the impact force pushes the lifting plate (5) to transmit the power to the air pressure frame (501), and the valve bolts (502) around it open, and then the movable long rods (504) of the upper frame (503) and the lower frame (508) are closed along the connecting shaft (505), and the side frame (506) at the bottom of the wing plate (507) is synchronously pressed; S4. Then, the collision block (1601) at the bottom of the hammer head (16) drives the rising rod (1602) to move upward, and the connected linkage gear rod (1603) moves upward to rotate the main rotating gear (1604), and the connected rocker (1606) and torque wheel (1607) rotate together. When the follower rod (1608) rises, it drives the suction net rod (1609) to be withdrawn from the hammer head (16), and the surrounding gas shrinks to absorb debris within a certain range. In the process of the rising rod (1602) moving upward, the propulsion rod (1503) in the pneumatic plug (1502) is pushed to move upward quickly, along the hollow pipe in the hammer rod (15) to the hollow rope (1507), thereby increasing the hardness and reducing the shaking. The threaded joint (1505) on the surface of the hammer rod (15) can fix the weight in the movable position.

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