Load test mechanism for solid wood composite floor

Abstract

The invention discloses a load test mechanism for a solid wood composite floor, which comprises a base, a supporting pipe body is welded above the base, a first motor sleeve is also welded at the center of the interior of the supporting pipe body above the base, a first motor is fixedly mounted in the first motor sleeve, and a second motor is fixedly mounted in the first motor sleeve. An output end shaft hole of the first motor is connected to the center of a rotating workbench, four sets of evenly-distributed clamping mechanisms are installed on the rotating workbench, and hard foam is further glued to the positions, located on the inner sides of the four sets of clamping mechanisms, of the rotating workbench; a second motor sleeve is welded to the position, located on the outer side of the supporting pipe body, of the base, a second motor is fixedly installed in the second motor sleeve, the output end of the second motor is connected with a coupler, and the device solves the problem that a current load test mechanism of the wood floor is low in drop hammer safety.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of wood floor load test, and particularly relates to a load test mechanism for solid wood composite wood floor. BACKGROUND

[0002] Drop hammer test, also known as impact test, is a test method for simulating the sudden impact or collision of materials. Drop hammer test is an optimal test method for testing solid wood composite wood floor, based on the relationship between energy conservation and impact force and absorption capacity, a hammer with certain mass and height is vertically impacted on the solid wood composite wood floor at a certain speed, and the kinetic energy of the hammer is converted into strain energy, plastic deformation energy and heat energy of the solid wood composite wood floor. By measuring the speed difference before and after hammering or observing the damage degree of the wood, the impact resistance of the solid wood composite wood floor is evaluated, which is of great significance for ensuring the quality and safety of the solid wood composite wood floor.

[0003] At present, the drop hammer test for load test of solid wood composite wood floor often uses a clamp to fix the hammer head to hit the solid wood composite wood floor fixed below. If the hammer head is offset by impact force from other directions during falling, it may fall out of the wood floor range and cause damage to the workers or other objects. At the same time, since the wood floor is in a static state, the drop hammer falling position lacks randomness, and the overall load capacity of the wood floor cannot be better analyzed. SUMMARY

[0004] The present application aims to provide a load test mechanism for solid wood composite wood floor to solve the problems in the background art.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a load test mechanism for solid wood composite wood floor, comprising a base, a support pipe body is welded above the base, a first motor sleeve is also welded in the center of the support pipe body above the base, a first electric motor is fixedly installed in the first motor sleeve, an output shaft hole of the first electric motor is connected to the center of a rotating workbench, four groups of evenly distributed clamping mechanisms are installed on the rotating workbench, and hard foam is also glued to the position inside the rotating workbench of the four groups of clamping mechanisms.

[0006] A second motor sleeve is welded at the position where the base is located outside the support pipe body, a second electric motor is fixedly installed in the second motor sleeve, a shaft coupling is connected to the output end of the second electric motor, a screw rod is connected to the other end of the shaft coupling, two jacking members are threadedly connected to the screw rod, an experiment table is arranged between the two jacking members, when the second electric motor drives the screw rod to rotate through the shaft coupling, the two jacking members are used to drag the experiment table to move up and down, a fixed sleeve is glued to one side of the experiment table, a pneumatic cylinder is fixedly installed in the fixed sleeve, an additional block is glued to the output end of the pneumatic cylinder, a first shaft rod is hinged to one side of the additional block, and the other end of the first shaft rod is overlapped on the middle segment position of a second shaft rod;

[0007] Three rotating wheels are further arranged in front of the experiment table, a first push shaft is fixedly installed on one side of the rotating wheel located in the middle, second push shafts are fixedly installed on the same side of the rotating wheels located on both sides, the first push shaft and the two second push shafts are respectively arranged at the middle segment and both ends of the second shaft rod, the first shaft rod is hinged to the first push shaft, electromagnetic rods are arranged in the centers of the three rotating wheels, the three electromagnetic rods are sequentially a first magnetic rod, a second magnetic rod and a third magnetic rod from left to right, a take-up wheel is connected to the other end of each electromagnetic rod penetrating through the experiment table, the take-up wheel is made of magnetic conductive material, meanwhile, the experiment table is made of non-magnetic conductive material, so that the magnetic attraction reaction between the experiment table and the electromagnetic rods is avoided when the electromagnetic rods are electrified, thereby affecting the rotation efficiency of the electromagnetic rods, a take-up groove is formed in each take-up wheel, the take-up groove is used for winding and unwinding a wire bundle, and a gravity hammer is bound to the movable end of the wire bundle.

[0008] The application further discloses that a rotating limiting ring is welded below the rotating workbench, a groove body matched with the rotating limiting ring is formed in the support pipe body, and the rotating limiting ring rotates in the support pipe body when the rotating workbench rotates, so as to limit the rotating workbench.

[0009] The application further discloses that the clamping mechanism comprises a fixed table, the bottom surface of the fixed table is welded on the rotating workbench, a spring is arranged on the side of the fixed table close to the hard foam, an active table is glued to the other end of the spring, protruding slide block structures are arranged at both ends of the active table, a slide block groove matched with the protruding slide block structures is formed in the rotating workbench, the active table slides to the fixed table direction by compressing the spring when a pushing force is applied to the active table, the active table is suitable for wood floors with cutting size deviation to be detected, the inner side of the active table is a horizontal plate, the upper surface of the horizontal plate is in the same plane as the upper surface of the hard foam, and a position avoiding groove for the horizontal plate is formed in the hard foam, and the wood floor to be detected is placed in the position avoiding groove.

[0010] The first push shaft is longer than the second push shaft, which facilitates the first push shaft to articulate the first shaft rod, and the shorter second push shaft does not affect the swing of the first shaft rod.

[0011] The base is provided with a limiting rod on both sides of the screw rod, the limiting rod penetrates through the experiment table, the height of the limiting rod is equal to the height of the screw rod, the limiting rod is used for limiting the experiment table and guiding the up and down movement, and rotation of the experiment table is avoided.

[0012] The screw rod is welded with a protective cover, the protective cover is used for limiting the jacking working height, and the jacking piece is prevented from rotating out of the screw rod and falling off.

[0013] The base is welded with four groups of uniformly distributed supporting legs.

[0014] The central part of the take-up groove is also provided with a base groove, the fixed end of the wire harness penetrates into the base groove and is fixed on the take-up wheel through binding.

[0015] The supporting pipe body is also provided with a control system, the lower surface of the experiment table is embedded with a distance sensor, and the distance sensor, the first motor, the second motor, the cylinder and the electromagnetic rod are electrically connected with the control system.

[0016] The control method of the control system comprises the following steps:

[0017] The appropriate experiment height of the drop hammer test is a, the distance between the lower surface of the experiment table and the bottom of the gravity hammer is b in the initial state when the gravity hammer is retracted, and the time intervals of the middle two gravity hammers from left to right are c seconds and d seconds.

[0018] After the wood floor to be detected is fixed to the hard foam through the clamping mechanism, the control system controls the second motor to start, drives the screw rod to rotate through the shaft coupling, drives the jacking piece connected through threads to move the experimental table up and down, until the distance sensor detects that the lower surface of the experimental table is a+b away from the upper surface of the wood floor to be detected, then the first motor is controlled to start, drives the rotating workbench to rotate, the wood floor is detected to rotate at the same time, the output end of the air cylinder is controlled to reciprocate, the first push shaft is driven to rotate through the hinged first shaft rod, and the three rotating wheels are driven to rotate due to the connecting action of the second shaft rod, the wire reel is driven to wind the wire bundle through the electromagnetic rod, until the gravity hammer reaches the initial position, then the first magnetic rod is controlled to be powered off, the second magnetic rod is controlled to be powered off after an interval of c seconds, and the third magnetic rod is controlled to be powered off after an interval of d seconds, the three gravity hammers fall on different positions of the wood floor surface respectively to perform the drop hammer test, and the load capacity of the wood floor is determined according to the size of the hammer pit and the fracture damage through the wood floor.

[0019] Compared with the prior art, the wood floor load capacity testing device has the beneficial effects that,

[0020] (1) The wood floor load capacity testing device drives the workbench and the wood composite floor carried thereby to rotate through the first motor, drives the wood composite floor to rotate in the drop hammer test, drives the gravity hammer to fall randomly on different positions of the wood composite floor, and analyzes the overall load capacity of the wood floor better.

[0021] (2) The wood floor load capacity testing device is combined with the electromagnetic rod, the wire reel, the wire bundle and the gravity hammer, can automatically lift the gravity hammer to a suitable experimental height, can avoid the gravity hammer from falling out of the wood floor range and causing damage to the workers or other articles when the gravity hammer is deviated by impact force from other directions, and has low safety. DETAILED DESCRIPTION

[0022] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are used to explain the application, and do not constitute a limitation of the application. In the drawings:

[0023] Figure 1 is a schematic view of the overall structure of the embodiment of the application;

[0024] Figure 2 is a side sectional view of the embodiment of the application;

[0025] Figure 3 is an enlarged view of area A of the embodiment of the application.

[0026] Figure 4 is an assembly diagram of a take-up wheel and a gravity hammer of an embodiment of the present application;

[0027] Figure 5 is an enlarged view of a B area of an embodiment of the present application;

[0028] Figure 6 is a side view of a take-up wheel of an embodiment of the present application;

[0029] Figure 7 is an enlarged view of a C area of an embodiment of the present application;

[0030] In the figure: 1, base; 2, support pipe body; 3, first motor sleeve; 4, first electric motor; 5, rotating workbench; 51, rotating limiting ring; 6, clamping mechanism; 61, fixed table; 62, spring; 63, movable table; 7, hard foam; 8, second motor sleeve; 9, second electric motor; 10, shaft coupling; 11, screw rod; 111, protective cover; 12, jacking piece; 13, experiment table; 14, fixed sleeve; 15, air cylinder; 16, additional block; 17, first shaft rod; 18, second shaft rod; 19, rotating wheel; 191, first push shaft; 192, second push shaft; 20, electromagnetic rod; 201, first magnetic rod; 202, second magnetic rod; 203, third magnetic rod; 21, take-up wheel; 211, take-up groove; 212, base groove; 22, wire harness; 23, gravity hammer; 24, limiting rod; 25, supporting leg. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be further described in detail below with reference to preferred embodiments and the drawings thereof. Apparently, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] The embodiment of the present application provides a load test mechanism for solid wood composite wood floor, Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application, such as Figure 1 and Figure 2As shown, the load test mechanism for solid wood composite wood floor includes a base 1, the upper part of the base 1 is welded with a support pipe body 2, the central part of the base 1 is welded with a first motor sleeve 3 inside the support pipe body 2, the inside of the first motor sleeve 3 is fixedly installed with a first motor 4, the output shaft hole of the first motor 4 is connected to the central part of a rotating workbench 5, the rotating workbench 5 is installed with four groups of evenly distributed clamping mechanisms 6, and the rotating workbench 5 is glued with hard foam 7 on the inner side of the four groups of clamping mechanisms 6. The hard foam 7 has higher compressive strength and can withstand greater pressure without being easily deformed to be suitable for supporting the wood floor, and also has a certain elasticity. When the wood floor is tested by the drop hammer, the local part of the wood floor is subjected to a vertical downward impact force to generate a hammer pit. The hammer pit compresses the hard foam 7 downward. After the experiment is completed, the hard foam 7 rebounds to the original height. The hard foam 7 plays a buffering role to avoid rigid collision and damage to the mechanism.

[0033] As shown in the drawings, Figure 2 The second motor sleeve 8 is welded on the outer side of the base 1, the inside of the second motor sleeve 8 is fixedly installed with a second motor 9, the output end of the second motor 9 is connected with a shaft coupling 10, the other end of the shaft coupling 10 is connected with a screw rod 11, the screw rod 11 is threadedly connected with two jacking pieces 12, and the two jacking pieces 12 are provided with a test table 13. When the second motor 9 drives the screw rod 11 to rotate through the shaft coupling 10, the two jacking pieces 12 are used to drag the test table 13 to move up and down.

[0034] As shown in the drawings, Figure 3As shown, one side of the experiment table 13 is glued with a fixed sleeve 14, the inside of the fixed sleeve 14 is fixedly installed with a gas cylinder 15, the output end of the gas cylinder 15 is glued with an additional block 16, one side of the additional block 16 is hinged with a first shaft rod 17, the other end of the first shaft rod 17 is overlapped on the middle segment position of a second shaft rod 18. In front of the experiment table 13 located in the additional block 16, three rotating wheels 19 are also provided, one of the rotating wheels 19 located in the middle is fixedly installed with a first push shaft 191 on one side, the same side of the two rotating wheels 19 located on both sides is fixedly installed with a second push shaft 192, the first push shaft 191 and the two second push shafts 192 are respectively provided on the middle segment and both ends of the second shaft rod 18, and the first shaft rod 17 is hinged with the first push shaft 191, the center of the three rotating wheels 19 is provided with an electromagnetic rod 20, and the electromagnetic rod 20 passes through the experiment table 13. The gas cylinder 15 is used as a power source, when the gas cylinder 15 is started, the output end will drive the additional block 16 to move back and forth, since the electromagnetic rod 20 passes through the experiment table 13 and the rotating wheel 19, and the experiment table 13 is in a static state relative to the first shaft rod 17, when one end of the additional block 16 drives the first shaft rod 17 to move back and forth, the other end of the first shaft rod 17 is limited by the hinged first push shaft 191, so that it drives the middle rotating wheel 19 to rotate with the center of the electromagnetic rod 20 as the center through the first push shaft 191, and since the second shaft rod 18 is connected, the two rotating wheels 19 on both sides are also rotated.

[0035] As shown in Figure 3 and Figure 4 The three electromagnetic rods 20 are sequentially a first magnetic rod 201, a second magnetic rod 202 and a third magnetic rod 203 from left to right, and each electromagnetic rod 20 is connected with a take-up wheel 21 through another end shaft hole of the experiment table 13, the take-up wheel 21 is made of magnetic conductive material, and the experiment table 13 is made of non-magnetic conductive material. When the electromagnetic rod 20 is powered, the electromagnetic rod 20 firmly adsorbs the take-up wheel 21, so that when the rotating wheel 19 drives the central electromagnetic rod 20 to rotate, the take-up wheel 21 rotates, and the experiment table 13 is made of non-magnetic conductive material to avoid magnetic attraction reaction between the experiment table 13 and the electromagnetic rod 20 when the electromagnetic rod 20 is powered, thereby affecting the rotation efficiency of the electromagnetic rod 20. Each take-up wheel 21 is provided with a take-up groove 211, which is a circular arc groove, which is conducive to accommodating the wire bundle 22 inside, and the movable end of the wire bundle 22 is bound with a gravity hammer 23.

[0036] In some optional embodiments, the gravity hammer 23 can be provided with various weights and shapes according to actual needs, and the wire bundle 22 can be provided with various lengths according to different test height requirements, and the gravity hammer 23 and the wire bundle 22 are matched according to actual experimental requirements and then assembled on the take-up wheel 21.

[0037] In some preferred embodiments, as shown in Figure 5As shown, the lower part of the rotating workbench 5 is welded with a rotating limiting ring 51, and the support pipe body 2 is provided with a groove body matched with the rotating limiting ring 51, when the rotating workbench 5 rotates, the rotating limiting ring 51 rotates in the support pipe body 2, and the rotating limiting ring 51 is used for limiting the rotating workbench 5.

[0038] In some preferred embodiments, as shown in Figure 5 and Figure 7 As shown, the clamping mechanism 6 includes a fixed table 61, the bottom surface of the fixed table 61 is welded on the rotating workbench 5, the side of the fixed table 61 close to the hard foam 7 is provided with a spring 62, the other end of the spring 62 is glued with a movable table 63, the two ends of the lower part of the movable table 63 are provided with protruding sliding block structures, the rotating workbench 5 is provided with sliding groove matched with the protruding sliding block structures, the movable table 63 is pushed to slide to the fixed table 61 direction by compressing the spring 62, the movable table 63 is suitable for the wood floor with cutting size deviation to be detected, the inner side of the movable table 63 is a horizontal plate, the upper surface of the horizontal plate is in the same plane with the upper surface of the hard foam 7, and the hard foam 7 is provided with an avoiding groove matched with the horizontal plate, which is used for placing the wood floor to be detected.

[0039] In some preferred embodiments, the length of the first push shaft 191 is greater than the length of the second push shaft 192, which is conducive to the first push shaft 191 hinged to the first shaft rod 17, and the second push shaft 192 is short and does not affect the swing of the first shaft rod 17.

[0040] In some preferred embodiments, as shown in Figure 1 The limiting rod 24 passes through the experiment table 13, and the height of the limiting rod 24 is equal to the height of the screw rod 11, the limiting rod 24 is used for limiting the experiment table 13 and guiding the up and down movement, so as to avoid the rotation of the experiment table 13.

[0041] In some preferred embodiments, as shown in Figure 2 The upper part of the screw rod 11 is welded with a protective cover 111, the protective cover 111 is used for limiting the jacking working height, so as to avoid the jacking piece 12 from rotating out of the screw rod 11.

[0042] In some preferred embodiments, as shown in Figure 2 The lower part of the base 1 is welded with four groups of evenly distributed supporting legs 25.

[0043] In some preferred embodiments, as shown in Figure 6 The central part of the wire collecting groove 211 is also provided with a base groove 212, the fixed end of the wire harness 22 passes through the base groove 212 and is fixed on the wire collecting wheel 21 by binding, and the base groove 212 is a narrow circular arc-shaped groove which can only accommodate one circle of the wire harness 22, which is conducive to the fixation of the fixed end of the wire harness 22.

[0044] In some preferred embodiments, the support pipe body 2 is further provided with a control system, and a distance sensor is embedded and installed on the lower surface of the experimental table 13, and the distance sensor, the first motor 4, the second motor 9, the air cylinder 15 and the electromagnetic rod 20 are electrically connected with the control system.

[0045] In some preferred embodiments, the suitable experimental height of the falling weight test is a, and the distance between the lower surface of the experimental table 13 and the bottom of the gravity hammer 23 is b when the gravity hammer 23 is retracted in the initial state, and the three gravity hammers 23 are sequentially dropped from left to right, and the two time intervals are c seconds and d seconds, respectively.

[0046] After the wood floor to be detected is fixed to the hard foam 7 through the clamping mechanism 6, the control system controls the second motor 9 to start, the screw rod 11 is driven to rotate through the shaft coupling 10, the jacking piece 12 connected by screw threads drags the experimental table 13 to move up and down, until the distance sensor detects that the distance between the lower surface of the experimental table 13 and the upper surface of the wood floor to be detected is a+b, then the first motor 4 is controlled to start, the rotating workbench 5 is driven to rotate, the wood floor to be detected is rotated, the electromagnetic rod 20 is controlled to be electrified to firmly adsorb the take-up wheel 21, the output end of the air cylinder 15 reciprocates, the first push shaft 191 is driven to rotate through the hinged first shaft 17, and the three rotating wheels 19 are rotated due to the connecting action of the second shaft 18, the take-up wheel 21 is driven to wind the wire bundle 22 through the electromagnetic rod 20, until the gravity hammer 23 is in the initial state, then the first magnetic rod 201 is controlled to be de-energized, the second magnetic rod 202 is controlled to be de-energized after an interval of c seconds, and the third magnetic rod 203 is controlled to be de-energized after an interval of d seconds, and the three gravity hammers 23 are dropped on the surface of the wood floor at different positions to perform the falling weight test.

[0047] The working principle of the embodiment of the application is as follows: the wood composite floor to be detected is cut to a size suitable for the clamping mechanism 6, placed on the hard foam 7 and clamped through the clamping mechanism 6, then the second motor 9 drives the screw rod 11 to rotate through the shaft coupling 10, the jacking piece 12 connected by screw threads drags the experimental table 13 to move up and down to a suitable height. Then the first motor 4 starts, drives the rotating workbench 5 and the bearing mechanism to rotate, and the electromagnetic rod 20 is electrified to firmly adsorb the take-up wheel 21, the output end of the air cylinder 15 reciprocates, the first push shaft 191 is driven to rotate through the hinged first shaft 17, and the three rotating wheels 19 are rotated due to the connecting action of the second shaft 18, the take-up wheel 21 is driven to wind the wire bundle 22 through the electromagnetic rod 20, until the gravity hammer 23 is wound to a suitable height, then the first magnetic rod 201 is de-energized, the second magnetic rod 202 is de-energized, and the third magnetic rod 203 is de-energized in sequence, so that the three gravity hammers 23 are sequentially dropped on the surface of the wood floor at different positions to perform the falling weight test, and the size of the hammer pit and the damage of the wood floor are used to determine the load capacity of the wood floor.

[0048] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A load testing mechanism for solid wood composite wood flooring, comprising a base (1), characterized in that: A support tube body (2) is welded above the base (1), and a first motor sleeve (3) is also welded above the base (1) at the center inside the support tube body (2). A first motor (4) is fixedly installed inside the first motor sleeve (3), and the output end shaft hole of the first motor (4) is connected to the center of the rotating workbench (5). Four groups of evenly distributed clamping mechanisms (6) are installed on the rotating workbench (5), and hard foam (7) is also glued to the positions of the rotating workbench (5) located inside the four groups of clamping mechanisms (6); A second motor sleeve (8) is welded to the base (1) at a position outside the support tube (2), a second motor (9) is fixedly installed inside the second motor sleeve (8), an output end of the second motor (9) is connected to a coupling (10), the other end of the coupling (10) is connected to a screw (11), two lifting members (12) are threadedly connected to the screw (11), a laboratory table (13) is provided between the two lifting members (12), and the second motor (9) is connected to the second motor (9) through the coupling (10). When the coupling (10) drives the screw rod (11) to rotate, the two lifting members (12) are used to drag the experimental table (13) up and down, a fixed sleeve (14) is glued to one side of the experimental table (13), a cylinder (15) is fixedly installed inside the fixed sleeve (14), an additional block (16) is glued to the output end of the cylinder (15), a first shaft (17) is hinged to one side of the additional block (16), and the other end of the first shaft (17) is overlapped on the middle section of the second shaft (18); Three rotating wheels (19) are also provided in front of the additional block (16) on the experimental table (13), wherein a first push shaft (191) is fixedly installed on one side of the rotating wheel (19) in the middle, and a second push shaft (192) is fixedly installed on the same side of the two rotating wheels (19) on both sides, and the first push shaft (191) and the two second push shafts (192) are respectively passed through the middle section and the two ends of the second shaft (18), and the first shaft (17) is hinged to the first push shaft (191), and an electromagnetic rod (20) is passed through the center of each of the three rotating wheels (19), and the three electromagnetic rods (20) are sequentially arranged from left to right as follows: A first magnetic rod (201), a second magnetic rod (202) and a third magnetic rod (203) are provided. Each of the electromagnetic rods (20) passes through the axial hole at the other end of the experimental table (13) and is connected to a take-up wheel (21). The take-up wheel (21) is made of a magnetic conductive material. At the same time, the experimental table (13) is not made of a magnetic conductive material to avoid a magnetic attraction reaction between the experimental table (13) and the electromagnetic rods (20) when power is supplied, thereby affecting the rotation efficiency of the electromagnetic rods (20). Each of the take-up wheels (21) is provided with a take-up groove (211). The take-up groove (211) is used to retract and release a wire harness (22). A gravity hammer (23) is tied to the movable end of the wire harness (22).

2. A load testing mechanism for solid wood composite wood flooring according to claim 1, characterized in that: A rotation limiting ring (51) is welded below the rotating worktable (5), and a groove body adapted to the rotation limiting ring (51) is provided on the supporting tube body (2). When the rotating worktable (5) rotates, the rotation limiting ring (51) rotates in the supporting tube body (2) to limit the position of the rotating worktable (5).

3. A load testing mechanism for solid wood composite wood flooring according to claim 2, characterized in that: The clamping mechanism (6) includes a fixed platform (61), the bottom surface of the fixed platform (61) is welded to the rotating workbench (5), a spring (62) is passed through the side of the fixed platform (61) close to the hard foam (7), and the other end of the spring (62) is glued to a movable platform (63), and protruding slider structures are provided at both ends below the movable platform (63), and a slider groove adapted to the protruding slider structure is provided on the rotating workbench (5). A thrust is applied to the movable platform (63) so that the movable platform (63) compresses the spring (62) and slides toward the fixed platform (61). The movable platform (63) is suitable for wooden floors with cutting size deviations to be detected. The inner side of the movable platform (63) is a horizontal plate, the upper surface of the horizontal plate is in the same plane as the upper surface of the hard foam (7), and the hard foam (7) is provided with a avoidance groove for the horizontal plate for placing the wooden floor to be detected.

4. A load testing mechanism for solid wood composite wood flooring according to claim 3, characterized in that: The length of the first push shaft (191) is greater than that of the second push shaft (192), which is beneficial for the first push shaft (191) to be hinged to the first shaft (17), and the shorter second push shaft (192) does not affect the swing of the first shaft (17).

5. A load testing mechanism for solid wood composite wood flooring according to claim 4, characterized in that: Limiting rods (24) are inserted on both sides of the screw rod (11) on the base (1), and the limiting rods (24) pass through the experimental table (13). The height of the limiting rods (24) is equal to the height of the screw rod (11). The limiting rods (24) are used to limit the experimental table (13) and guide the upward and downward movement to prevent the experimental table (13) from rotating.

6. A load testing mechanism for solid wood composite wood flooring according to claim 5, characterized in that: A protective cover (111) is welded above the screw rod (11), and the protective cover (111) is used to limit the lifting working height to prevent the lifting member (12) from being screwed out and falling off from above the screw rod (11).

7. A load testing mechanism for solid wood composite wood flooring according to claim 6, characterized in that: Four groups of evenly distributed supporting legs (25) are welded below the base (1).

8. A load testing mechanism for solid wood composite wood flooring according to claim 7, characterized in that: A base groove (212) is also provided in the center of the wire take-up groove (211), and the fixed end of the wire harness (22) passes through the base groove (212) and is fixed to the wire take-up wheel (21) by binding.

9. A load testing mechanism for solid wood composite wood flooring according to claim 8, characterized in that: A control system is also provided inside the support tube body (2), and a distance sensor is embedded in the lower surface of the experimental table (13). The distance sensor, the first motor (4), the second motor (9), the cylinder (15) and the electromagnetic rod (20) are all electrically connected to the control system.

10. A load testing mechanism for solid wood composite wood flooring according to claim 9, characterized in that: The control method of the control system includes: The appropriate experimental height for the drop hammer test is set to a. When the gravity hammer (23) is retracted in the initial state, the distance between the lower surface of the experimental platform (13) and the bottom of the gravity hammer (23) is b. The two time intervals between the three gravity hammers (23) falling in sequence from left to right are c seconds and d seconds respectively. After the wooden floor to be tested is fixed to the hard foam (7) through the clamping mechanism (6), the control system controls the second motor (9) to start, drives the screw (11) to rotate through the coupling (10), and causes the threaded lifting member (12) to drag the test table (13) up and down until the distance sensor detects that the distance between the lower surface of the test table (13) and the upper surface of the wooden floor to be tested is a+b, then controls the first motor (4) to start, drives the rotating workbench (5) to rotate, and the test wooden floor rotates accordingly, and at the same time controls the electromagnetic rod (20) to energize to firmly adsorb the take-up wheel (21), and controls the output end of the cylinder (15) to reciprocate. The invention relates to a method for controlling the weight of the wooden floor to move, wherein the first push shaft (191) is driven to rotate by the hinged first shaft (17), and the three rotating wheels (19) are rotated due to the connection of the second shaft (18), and the wire harness (22) is reeled in by the wire reel (21) driven by the electromagnetic rod (20) until the gravity hammer (23) reaches the initial position, and then the first magnetic rod (201) is controlled to be powered off, and the second magnetic rod (202) is controlled to be powered off after an interval of c seconds, and the third magnetic rod (203) is controlled to be powered off again after an interval of d seconds, and the three gravity hammers (23) are respectively dropped on different positions on the surface of the wooden floor to perform a drop hammer test, and the load capacity of the wooden floor is judged by the size of the hammer pit and the fracture damage of the wooden floor.

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