CN211505044U

CN211505044U - Bending rigidity test device for paper honeycomb composite wallboard for building

Info

Publication number: CN211505044U
Application number: CN201922104676.6U
Authority: CN
Inventors: 杨森; 张隆基; 赵叶蕾; 朱亚州
Original assignee: Shandong Hefu Engineering Testing Co ltd
Current assignee: Shandong Hefu Engineering Testing Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-09-15
Anticipated expiration: 2029-11-29

Abstract

The utility model belongs to the technical field of the product is experimental, in particular to crooked rigidity test device of paper honeycomb composite wall panel for building, the utility model discloses a plurality of automatically controlled telescopic links and PLC controller have realized automated inspection, have improved the accuracy and the efficiency of test greatly, have eliminated the interference of human factor, have realized the automation of test, just the utility model discloses a locating plate and horizontal support plate accuracy are fixed a position the sample, have guaranteed the accuracy of operation and the quality of test, adopt to rotate the die-pin and do not rotate die-pin bearing sample for the deformation of not restricting the sample in the testing process, the test result that reachs is more accurate.

Description

Bending rigidity test device for paper honeycomb composite wallboard for building

Technical Field

The invention belongs to the technical field of product tests, and particularly relates to a bending stiffness test device for a paper honeycomb composite wallboard for buildings.

Background

The paper honeycomb composite wallboard for building is a novel wall material, is formed by bonding and pressing a fireproof plate and a honeycomb paper core and is used for an indoor wall plate, has the outstanding advantages of energy conservation, light weight and good wallboard structurization, and can save the construction period during the construction of wiring pre-buried pipes in the wallboard, brushing the outer surface of the wallboard and the like. The wall board has flat outer surface, no cracking, smaller thickness than conventional clay brick, hollow brick, air block and other wall boards, and less effective use area, and has outstanding moisture-proof, sound-proof, fireproof, environment friendly and other features. The advantages of the wallboard can be exerted only on the premise of ensuring the quality performance, wherein the bending rigidity performance of the wallboard is one of important quality indexes. The existing bending rigidity performance test process of the wallboard is as follows: taking 5 samples with the length of 900mm multiplied by 150mm from a paper honeycomb composite wallboard, measuring a central line on each sample and marking the central line, applying a certain force value to the middle part of each sample after the samples are aligned on a testing machine, measuring the warping deformation value of the two sides of each sample at a specified distance by using a displacement dial indicator, taking the average value of the left side and the right side to be substituted into a rigidity calculation formula to obtain the bending rigidity of 1 sample, and taking the arithmetic average value of the bending rigidity of 5 samples after the 5 samples are tested in the way as the final test result. In the test process, after the test piece is manually measured, scribed and placed into the testing machine one by one, the scribing mark on the test piece is manually aligned with the center line of the pressure head of the testing machine for alignment, the load and measurement are manually controlled, the data of the displacement dial indicator are read and are substituted into a formula to calculate the bending rigidity of 1 test piece, the bending rigidity of 5 test pieces is obtained by the operation, and then the arithmetic mean value of the bending rigidity of the 5 test pieces is calculated to be used as the bending rigidity test result of the batch of samples. In the test process, because many steps are manual operation and measurement, human interference factors are inevitably generated, the detection result is inevitably influenced, and the detection quality and the detection efficiency are not high. For this reason, there is no automatic testing device and method capable of eliminating the human interference factor.

Disclosure of Invention

The invention aims to overcome the defects of the background technology and provide a bending rigidity test device for a paper honeycomb composite wallboard for a building.

The invention is realized by the following technical scheme:

a bending rigidity test device for a paper honeycomb composite wallboard for a building comprises a rotating supporting rod and a non-rotating supporting rod which are parallel, wherein two ends of the rotating supporting rod and two ends of the non-rotating supporting rod are fixed on a support, the upper surfaces of the rotating supporting rod and the non-rotating supporting rod are on the same horizontal plane, the rotating supporting rod can rotate relative to the support, and the non-rotating supporting rod cannot rotate relative to the support; the positioning groove A is a horizontal groove, and the bottom of the positioning groove A is matched with the sample; positioning grooves B corresponding to the positioning grooves A are uniformly formed in the horizontal supporting plate, and the bottom of the horizontal supporting plate is fixed to the upper end portion of a vertical telescopic rod B of an electric control telescopic rod B; the positioning groove B is a vertical groove, and the bottom of the positioning groove B is matched with the sample; the device comprises a sample, and is characterized by further comprising a rack, wherein the rack comprises two stand columns and a cross beam connected with the stand columns, the cross beam is perpendicular to the sample and is positioned above the middle position of the sample, servo motors D are respectively fixed on two sides of the inner sides of the two stand columns, a shaft coupling is arranged on a motor shaft D of each servo motor D, a lead screw is upwards arranged on the shaft coupling, a nut is screwed on the lead screw, a bearing is arranged at the top of the lead screw, the bearing is embedded on the bottom surface of the cross beam, a horizontal beam is connected between the two nuts, a plurality of electric control telescopic rods A are fixed on the bottom surface of the horizontal beam downwards corresponding to the middle position of the sample, pressure sensors are arranged at the end parts of telescopic rods; the device also comprises laser displacement sensors, wherein the laser displacement sensors are positioned below the samples and are symmetrically installed left and right corresponding to each sample; the power source of the electric control telescopic rod C, the electric control telescopic rod B and the electric control telescopic rod A is respectively a servo motor C, a servo motor B and a servo motor A, and the servo motor C, the servo motor B, the servo motor A, the servo motor D, the laser displacement sensor and the pressure sensor are all connected with a PLC through control lines.

Preferably, the horizontal section of the positioning groove A is isosceles trapezoid, and the vertical section of the positioning groove B is isosceles trapezoid.

Preferably, the structure that the rotating supporting rod rotates relative to the bracket is as follows: the rotary supporting rod comprises a supporting rod shaft and a sleeve pipe sleeved on the supporting rod shaft, the sleeve pipe can rotate around the supporting rod shaft, and the supporting rod shaft is fixed on the support.

Preferably, the structure that the rotating supporting rod rotates relative to the bracket is as follows: rolling bearings are arranged at two ends of the rotating support rod, the rolling bearings are fixed on the support, and the rotating support rod can rotate in the rolling bearings.

Preferably, the top of the horizontal beam is welded with an arched reinforcing rib.

Preferably, the bottom of the upright post is provided with a reinforcing rib.

Furthermore, the distance between the rotating support rod and the non-rotating support rod from the center of the pressure rod is 200 mm.

Furthermore, the distance between the laser displacement sensor and the center of the pressure rod is 400 mm.

Furthermore, a short horizontal rod is fixed in the middle of the cross beam, a monitoring camera is mounted at the end of the short horizontal rod, and the monitoring camera is connected with the PLC.

The device disclosed by the invention can be used for automatically testing the bending rigidity of the paper honeycomb composite wallboard, so that the testing accuracy and efficiency are greatly improved, the interference of human factors is eliminated, and the testing automation is realized.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a sectional view a-a of fig. 1.

Fig. 5 is an enlarged view of a portion I of fig. 2.

FIG. 6 is a diagram showing the position of the components in FIG. 1 after application of force.

In the figure, 1 column, 4 supports, 6 laser displacement sensors, 7 laser beams, 8 floors, 9 racks, 11 electric control telescopic rods C, 12 servo motors C, 13PLC controllers, 14 telescopic rods C, 16 positioning plates, 17 samples, 18 non-rotating supporting rods, 19 servo motors D, 21 monitoring cameras, 22 short horizontal rods, 23 cross beams, 24 rotating supporting rods, 25 horizontal supporting plates, 26 telescopic rods B, 27 electric control telescopic rods B, 28 servo motors B, 29 lead screws, 30 compression rods, 31 connecting rods, 32 pressure sensors, 33 telescopic rods A, 34 electric control telescopic rods A, 35 servo motors A, 36 screw nuts, 38 horizontal beams, 39 arched reinforcing ribs, 40 positioning grooves A, 41 positioning grooves B and 42 motor shafts D.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Embodiments of the present invention are described in detail with reference to fig. 1 to 6. The device comprises a frame, wherein the frame comprises two flat upright posts 1, the tops of the two upright posts 1 are connected with a cross beam 23, the bottoms of the upright posts 1 are provided with reinforcing ribs, and the upright posts 1 are fixed on the ground 8 by foundation bolts. A servo motor D19 is respectively fixed on the ground 8 of the inner sides of the two upright posts 1 close to the upright posts 1 through anchor bolts, a coupler is arranged on a motor shaft D42 of a servo motor D19, a vertical screw 29 is arranged at the upper end of the coupler, a nut 36 is screwed on the screw 29, a bearing is arranged at the top of the screw 29, and the bearing is embedded on the bottom surface of the cross beam 23. The two nuts 36 on the screw 29 have the same height, and the two nuts 36 are connected by a horizontal beam 38. The top of the horizontal beam 38 is welded with an arch reinforcing rib 39, the arch of the arch reinforcing rib 39 can increase the strength, the bottom surface of the horizontal beam 38 is uniformly fixed with a plurality of electric control telescopic rods A34 which apply force vertically and downwards through bolts, in the embodiment, the number of the test samples 17 is 5, therefore, 5 electric control telescopic rods A34 are arranged, and the servo motor A35 is a power source of the electric control telescopic rod A34. The end part of a telescopic rod A33 of the electric control telescopic rod A34 is provided with a pressure sensor 32, the lower end of the pressure sensor 32 is provided with a vertical connecting rod 31, the lower end of the connecting rod 31 is welded with a pressure rod 30, the pressure rod 30 is cylindrical, the diameter of the pressure rod 30 is slightly longer than the width of the sample 17, and the center of the pressure rod 30 is over against the middle position of the sample 17.

In the present embodiment, the width of the sample 17 is 150mm, the length thereof is 900mm, and the rotating support rod 24 and the non-rotating support rod 18 are respectively arranged at 200mm positions on the left and right sides of the length direction of the sample 17 by taking the center of the pressure rod 30 as a reference, that is, the distances from the rotating support rod 24 and the non-rotating support rod 18 to the center of the pressure rod 30 are both 200 mm. The rotating support rod 24 and the non-rotating support rod 18 are parallel to each other and are perpendicular to the sample 17, the upper surfaces of the rotating support rod 24 and the non-rotating support rod 18 are on the same horizontal plane, the rotating support rod 24 and the non-rotating support rod 18 are cylindrical support rods with the same size, and two ends of the rotating support rod 24 and two ends of the non-rotating support rod 18 are both fixed on the support 4. Wherein the rotation tray 24 can rotate relative to the bracket 4, and the non-rotation tray 18 cannot rotate relative to the bracket 4. The non-rotatable carrier bar 18 is fixed to the support 4 so that it cannot rotate relative to the support 4, for example, the ends of the non-rotatable carrier bar 18 are fixed to the support 4 by bolts or are welded directly to the support 4. There are various structures that the rotating support rod 24 can rotate relative to the bracket 4, and no special limitation is imposed on the structures, for example, the rotating support rod 24 comprises a support rod shaft and a sleeve pipe sleeved on the support rod shaft, the sleeve pipe can rotate around the support rod shaft, and the support rod shaft is fixed on the bracket 4; for example, rolling bearings are arranged at two ends of the rotating support rod 24 and fixed on the bracket 4, and the rotating support rod 24 can rotate in the rolling bearings

The left end of the sample 17 is provided with a positioning plate 16, the positioning plate 16 is parallel to the rotary supporting rod 24 and the non-rotary supporting rod 18, the side, facing the end of the sample 17, of the positioning plate 16 is evenly provided with 5 positioning grooves A40, the positioning grooves A40 are horizontal grooves, the bottoms of the positioning grooves A40 are matched with the sample 17, and the sample 17 is horizontally placed in the positioning grooves A40 to position the sample 17 in the length direction and the width direction. 5 constant head tank A40 can be with 5 horizontally sample 17 evenly divided, and is preferred, and constant head tank A40's horizontal cross-section is isosceles trapezoid, also can be the rectangle etc. preferably isosceles trapezoid is convenient for put into sample 17 automatic positioning for sample 17 atress perk does not receive the resistance when warping and warping. The left side of the positioning plate 16 is fixed at the end of a horizontal telescopic rod C14 of the electric control telescopic rod C11, the electric control telescopic rod C11 is fixed on the rack 9 through bolts, the servo motor C12 provides power for the electric control telescopic rod C11, and the rack 9 is fixed on the ground 8 through anchor bolts.

Be equipped with a horizontal layer board 25 below the sample 17 right side near the end, horizontal layer board 25 is equally parallel with rotating die-pin 24 and not rotating die-pin 18, evenly be equipped with 5 constant head tank B41 that correspond with constant head tank A40 above the horizontal layer board 25, constant head tank B41's bottom matches with sample 17, 5 constant head tank B41 evenly part 5 horizontal sample 17, constant head tank B41 is vertical groove, and is the same, the vertical cross-section of preferred constant head tank B41 is isosceles trapezoid in this embodiment, vertical cross-section is isosceles trapezoid and is convenient for put into sample 17 automatic positioning, do not receive the resistance when making sample 17 atress perk warp the deformation. The horizontal supporting plate 25 is fixed at the top of a telescopic rod B26 of the electric control telescopic rod B27, the electric control telescopic rod B27 is fixed on the ground 8 through anchor bolts, and the servo motor B28 provides power for the electric control telescopic rod B27.

The laser displacement sensors 6 are located below the samples 17, the laser displacement sensors 6 are symmetrically arranged on the left side and the right side of each sample 17, and the distance between the laser displacement sensors 6 on the left side and the right side and the center of the pressure rod 30 is 400 mm. When the middle part of the upper surface of the sample 17 is pressed by a certain pressure value by the pressure rod 30, two sides of the sample 17 tilt for a certain distance, the laser displacement sensor 6 measures the changed distance value and transmits the measured data to the PLC 13 through an electric lead, the PLC 13 calculates the bending rigidity of the sample 17 according to the middle lower pressure value of the sample 17 by the pressure rod 30 and the displacement data of the left side and the right side of the sample 17 measured by the laser displacement sensor 6, the PLC 13 obtains an arithmetic mean value according to the bending rigidity of the 5 samples 17, and the arithmetic mean value is the bending rigidity test result of the samples in the batch.

Still be equipped with short horizon bar 22 in the middle part of frame crossbeam 23, be equipped with surveillance camera head 21 at the tip of short horizon bar 22, surveillance camera head 21 transmits inspection process image data to PLC controller 13 in real time, and PLC controller 13 analysis stores these images as the evidence of the backlog of meeting of the strange.

The monitoring camera 21, the laser displacement sensor 6, the 5 servo motors A35, the servo motor B28, the servo motor C12, the two servo motors D19 and the electric control leads of the 5 pressure sensors 32 are all connected with the PLC 13.

The device using method comprises the following steps: the 5 samples 17 were placed on the non-rotating tray bar 18 and the rotating tray bar 24, respectively, while the left end face of each sample 17 was placed in the positioning groove a40 of the positioning plate 16 and the right end face of the sample 17 was placed in the positioning groove B41 of the horizontal pallet 25, so that the samples 17 were horizontally placed, evenly spaced, and parallel to each other. When the electric control components in the PLC 13 are pressed to enter a working state, the PLC 13 controls the servo motor B28 to work to enable the horizontal supporting plate 25 to move downwards for a certain distance, controls the servo motor C12 to work to enable the positioning plate 16 to move leftwards for a certain distance, controls the laser displacement sensor 6 to emit laser beams 7, and transmits the distance data of each measured laser beam 7 to the PLC 13. The PLC 13 controls two servo motors D19 to work simultaneously, the screw 29 rotates, the screw nut 36 moves downwards, the horizontal beam 38 connecting the two screw nuts 36 moves downwards, all components fixed below the horizontal beam 38 also move downwards synchronously, when the pressure lever 30 is about to contact the test sample 17, the two servo motors D19 stop working, the 5 servo motors A35 work, 5 pressure levers 30 move downwards and contact the middle parts of the test samples 17 below the pressure levers respectively, when the pressure sensor 32 on a certain pressure lever 30 senses that the pressure reaches the specified value, the PLC 13 controls the servo motor A35 of the electric control telescopic rod A34 connected with the pressure sensor 32 to stop working, meanwhile, the laser displacement sensors 6 on the two sides below the sample 17 transmit measured displacement data of the two ends of the sample 17 after being stressed to the PLC 13, and the PLC 13 calculates the bending rigidity of the sample 17 according to displacement values of the sample 17 before and after being stressed. The same control program is used for applying force, measuring and calculating to the 5 test samples 17, and the PLC 13 calculates an arithmetic mean value according to the bending rigidity of the 5 test samples 17 as the bending rigidity test result of the test samples. After the PLC 13 obtains the test result, each electric control component automatically returns to the original position to wait for the next batch of tests.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a compound wallboard bending stiffness test device of paper honeycomb for building, includes parallel rotation die-pin (24) and does not rotate die-pin (18), rotates die-pin (24) and all is fixed on support (4) with the both ends that do not rotate die-pin (18), rotate die-pin (24) and the upper surface that does not rotate die-pin (18) on same horizontal plane, rotate die-pin (24) and support (4) relatively and can rotate, do not rotate die-pin (18) relatively support (4) and can not rotate its characterized in that: the electric control telescopic rod C (11) is characterized by further comprising a positioning plate (16) and a horizontal supporting plate (25), wherein the positioning plate (16) and the horizontal supporting plate (25) are positioned on the outer sides of the rotating supporting rod (24) and the non-rotating supporting rod (18), a plurality of positioning grooves A (40) are uniformly formed in the right side surface of the positioning plate (16), the left side surface of the positioning plate (16) is fixed to the end portion of a horizontal telescopic rod C (14) of the electric control telescopic rod C (11), and the electric control telescopic rod C (11; the positioning groove A (40) is a horizontal groove, and the bottom of the positioning groove A (40) is matched with the sample (17); positioning grooves B (41) corresponding to the positioning grooves A (40) are uniformly formed in the horizontal supporting plate (25), and the bottom of the horizontal supporting plate (25) is fixed to the upper end portion of a vertical telescopic rod B (26) of an electric control telescopic rod B (27); the positioning groove B (41) is a vertical groove, and the bottom of the positioning groove B (41) is matched with the sample (17); the testing device also comprises a rack, the rack comprises two upright posts (1) and a cross beam (23) connected with the upright posts (1), the cross beam (23) is perpendicular to the sample (17) and is positioned above the middle position of the sample (17), two sides of the inner side of the two upright posts (1) are respectively fixed with a servo motor D (19), a shaft coupling is arranged on a motor shaft D (42) of the servo motor D (19), a lead screw (29) is upwards arranged on the shaft coupling, a screw nut (36) is screwed on the lead screw (29), a bearing is arranged at the top of the lead screw (29), the bearing is embedded on the bottom surface of the cross beam (23), a horizontal beam (38) is connected between the two screw nuts (36), a plurality of electric control telescopic rods A (34) are fixed at the middle position of the sample (17) corresponding to the bottom surface of the horizontal beam (38) downwards, a pressure sensor (32) is arranged at the end part of a telescopic rod A (33) of the, the lower end of the connecting rod (31) is welded with a pressure lever (30); the device is characterized by further comprising laser displacement sensors (6), wherein the laser displacement sensors (6) are located below the samples (17), and the laser displacement sensors (6) are symmetrically arranged on the left and right sides of each sample (17); the power source of automatically controlled telescopic link C (11), automatically controlled telescopic link B (27), automatically controlled telescopic link A (34) is servo motor C (12), servo motor B (28) and servo motor A (35) respectively, servo motor C (12), servo motor B (28), servo motor A (35), servo motor D (19), laser displacement sensor (6), pressure sensor (32) all are connected with a PLC controller (13) through accuse line.

2. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: the horizontal section of the positioning groove A (40) is isosceles trapezoid, and the vertical section of the positioning groove B (41) is isosceles trapezoid.

3. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: the structure that the rotating supporting rod (24) rotates relative to the bracket (4) is as follows: the rotating support rod (24) comprises a support rod shaft and a sleeve pipe sleeved on the support rod shaft, the sleeve pipe can rotate around the support rod shaft, and the support rod shaft is fixed on the support (4).

4. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: the structure that the rotating supporting rod (24) rotates relative to the bracket (4) is as follows: rolling bearings are arranged at two ends of the rotating support rod (24), the rolling bearings are fixed on the support (4), and the rotating support rod (24) can rotate in the rolling bearings.

5. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: and the top of the horizontal beam (38) is welded with an arched reinforcing rib (39).

6. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: the distance between the rotating support rod (24) and the non-rotating support rod (18) and the center of the pressure rod (30) is 200 mm.

7. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: the distance between the laser displacement sensor (6) and the center of the pressure rod (30) is 400 mm.

8. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: the middle part of crossbeam (23) is fixed with short horizon bar (22), installs surveillance camera head (21) at the tip of short horizon bar (22), surveillance camera head (21) are connected with PLC controller (13).

9. The bending stiffness test device for the paper honeycomb composite wallboard for construction according to claim 1, characterized in that: and the bottom of the upright post (1) is provided with a reinforcing rib.