Device for testing compressive resistance and scratch resistance of silicate building products

Abstract

The present application relates to a kind of silicate building product compression resistance and scratch resistance testing device, including rack;Test seat mechanism and lifting pressure mechanism are arranged on the rack;The test seat mechanism is located on the upper end surface of rack, and the lifting pressure mechanism is located on the gantry of rack top, and the lifting pressure mechanism corresponds with the up-and-down position of test seat mechanism;The test seat mechanism includes test seat, and the test seat is provided with top plane and bevel gear surface;The lifting pressure mechanism includes lifting cylinder, turnover pressure plate, telescopic cylinder and scratch rod, the turnover pressure plate is hinged with the bottom end of the piston rod of lifting cylinder, the scratch rod is connected with the piston rod of telescopic cylinder, and the end of scratch rod is provided with scratch head.The present application can carry out compression resistance and scratch resistance test to silicate building product, sample transfer operation in testing process is saved, and the purchase cost is significantly reduced compared with pressure testing machine and automatic scratch testing machine.

Description

Technical Field

[0001] This invention relates to the field of building product testing, specifically to a device for testing the compressive strength and scratch resistance of silicate building products. Background Technology

[0002] Silicate building products are building products made by mixing silicon and calcium raw materials and aggregates with water, molding them, and hardening them under hydrothermal conditions.

[0003] After silicate building products are manufactured and processed, sample inspection is required to verify their conformity. As building products, the testing mainly includes compressive strength testing and scratch resistance testing.

[0004] The existing compressive strength and scratch resistance are tested using two separate dedicated testing machines. Compressive strength is tested using a pressure testing machine, while scratch resistance is tested using an automatic scratch testing machine.

[0005] To ensure the accuracy of the test results, the same sample needs to be tested for both compressive strength and scratch resistance. Considering that compressive strength testing is often destructive, scratch resistance testing should be performed first, followed by compressive strength testing.

[0006] Since the two tests mentioned above correspond to two different devices, and in reality, the two devices are likely located at different locations, it is necessary to transfer the sample to the pressure testing machine for the compressive strength test after completing the scratch resistance test.

[0007] Transferring equipment will undoubtedly consume a significant amount of time, impacting testing efficiency. If a pressure testing machine and an automatic scratch testing machine are purchased and placed in the same laboratory, the equipment procurement cost will be high. Summary of the Invention

[0008] The purpose of this invention is:

[0009] Design a device for testing the compressive strength and scratch resistance of silicate building products. This device can perform both tests on silicate building products on the same equipment, eliminating the need for sample transfer during the testing process. At the same time, the purchase cost is significantly lower compared to pressure testing machines and automatic scratch testing machines.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A testing device for the compressive strength and scratch resistance of silicate building products includes a frame; a test seat mechanism and a lifting and pressing mechanism are provided on the frame; the test seat mechanism is located on the upper end face of the frame, and the lifting and pressing mechanism is located on a gantry frame at the top of the frame, with the upper and lower positions of the lifting and pressing mechanism corresponding to those of the test seat mechanism; the test seat mechanism includes a test seat, which is movably connected to the upper end face of the frame, and the test seat is provided with a top plane and a helical toothed surface; the lifting and pressing mechanism includes a lifting cylinder, a tilting pressure plate, a telescopic cylinder, and a scraper rod, the tilting pressure plate is hinged to the bottom end of the piston rod of the lifting cylinder and the tilting pressure plate corresponds to the upper and lower positions of the test seat, the telescopic cylinder is located on the tilting pressure plate, the scraper rod is connected to the piston rod of the telescopic cylinder, and the end of the scraper rod is provided with a scraper head.

[0012] Furthermore, the bottom of the test base is provided with a dovetail structure, which is movably connected to the dovetail groove on the upper surface of the frame; the top plane is located on the top of the test base and is horizontally set, and the oblique tooth surface is located on the side of the test base and is inclined.

[0013] Furthermore, the top plane is a smooth surface, and the oblique tooth surface is provided with reverse teeth, which are distributed in rows and columns; the angle between the oblique tooth surface and the horizontal plane is 10-45°.

[0014] Furthermore, a positioning baffle is provided at the lower end of the helical tooth surface, the positioning baffle being plate-shaped and perpendicular to the helical tooth surface.

[0015] Furthermore, the cylinder body of the lifting cylinder is vertically mounted on the top of the gantry frame, and the tilting pressure plate is flat and is hinged to the bottom end of the piston rod of the lifting cylinder through a load-bearing hinge seat.

[0016] Furthermore, the telescopic cylinder is located on the upper surface of the tilting pressure plate, and the telescopic cylinder is arranged symmetrically with respect to the piston rod of the lifting cylinder; both the telescopic cylinder and the lifting cylinder are single-piston rod cylinders.

[0017] Furthermore, the scraper rod is coaxially arranged with the piston rod of the telescopic cylinder, the scraper rod passes through the through hole in the flipping pressure plate, and the scraper head is detachably connected to the end of the scraper rod.

[0018] Furthermore, the scraper head has a rotating structure and is coaxially arranged with the scraper rod. The bottom end of the scraper head is conical with the pointed end facing downwards.

[0019] The beneficial effects of this invention are as follows: A test device for the compressive strength and scratch resistance of silicate building products can be used to test the compressive strength and scratch resistance of silicate building products through the comprehensive use of a frame, a test seat mechanism and a lifting and pressing mechanism. The two tests are carried out on the same equipment, eliminating the sample transfer operation in the testing process, saving time and effort, improving testing efficiency, and significantly reducing the purchase cost compared with pressure testing machines and automatic scratch testing machines, which is conducive to reducing production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the compressive strength and scratch resistance testing device for silicate building products according to the present invention in the state of compressive strength testing.

[0021] Figure 2 This is a schematic diagram of the compressive strength and scratch resistance testing device for silicate building products according to the present invention in the scratch resistance testing state.

[0022] Figure 3 This is a three-dimensional schematic diagram of the lifting and pressing mechanism of a silicate building product compression resistance and scratch resistance testing device according to the present invention.

[0023] In the diagram: 1. Frame;

[0024] 2. Test seat mechanism; 21. Test seat; 23. Top plane; 24. Helical tooth surface; 25. Positioning baffle;

[0025] 3. Lifting and pressing mechanism; 31. Gantry frame; 32. Lifting cylinder; 33. Load-bearing hinge seat; 34. Tilting pressure plate; 35. Telescopic cylinder; 36. Scraper bar; 37. Scraper head. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] refer to Figures 1 to 3A testing device for the compressive strength and scratch resistance of silicate building products includes a frame 1; a test seat mechanism 2 and a lifting and pressing mechanism 3 are provided on the frame 1; the test seat mechanism 2 is located on the upper end face of the frame 1, and the lifting and pressing mechanism 3 is located on a gantry frame 31 at the top of the frame 1. The lifting and pressing mechanism 3 corresponds vertically to the test seat mechanism 2. The test seat mechanism 2 is used to support and fix the sample to be tested, and the lifting and pressing mechanism 3 is used to apply pressure to the sample from top to bottom; the test seat mechanism 2 includes a test seat 21, which is movably connected to the upper end face of the frame 1. The test seat 21 is provided with a top plane 23 and a helical tooth surface 24, both of which are used to place the sample to be tested. The test bench 21 has two stations: one for pressure resistance and the other for scratch resistance. The lifting and pressing mechanism 3 includes a lifting cylinder 32, a tilting pressure plate 34, a telescopic cylinder 35, and a scraper 36. The tilting pressure plate 34 is hinged to the bottom end of the piston rod of the lifting cylinder 32, and the tilting pressure plate 34 corresponds to the vertical position of the test bench 21. The lifting cylinder 32 is used to drive the tilting pressure plate 34 to move up and down. The tilting pressure plate 34 can be tilted relative to the piston rod of the lifting cylinder 32. The telescopic cylinder 35 is located on the tilting pressure plate 34. The scraper 36 is connected to the piston rod of the telescopic cylinder 35. The telescopic cylinder 35 is used to drive the scraper 36 to move up and down. The end of the scraper 36 is provided with a scraper head 37, which is used to scrape the sample to be tested.

[0028] The bottom of the test seat 21 is provided with a dovetail structure, which is movably connected to the dovetail groove on the upper surface of the frame 1. The test seat 21 can slide horizontally along the dovetail groove and be fixed. The top plane 23 is located on the top of the test seat 21 and is set horizontally to fix the compressive strength test position. The oblique tooth surface 24 is located on the side of the test seat 21 and is set at an angle to correspond to the scratch resistance test position.

[0029] The top plane 23 is a smooth surface, and the oblique tooth surface 24 is provided with reverse teeth, which are distributed in rows and columns. The reverse teeth are used to support the sample to be tested and can also form a scratch on the lower surface of the sample to be tested. The angle between the oblique tooth surface 24 and the horizontal plane is 10-45°.

[0030] A positioning baffle 25 is provided at the lower end of the inclined tooth surface 24. The positioning baffle 25 is plate-shaped and perpendicular to the inclined tooth surface 24. The positioning baffle 25 is used to fix the sample to be tested and prevent the sample to be tested from detaching from the inclined tooth surface 24 under the action of the inclined surface.

[0031] The cylinder body of the lifting cylinder 32 is vertically mounted on the top of the gantry frame 31. The flipping pressure plate 34 is flat and is hinged to the bottom end of the piston rod of the lifting cylinder 32 through the load-bearing hinge seat 33. The load-bearing hinge seat 33 can withstand greater pressure while achieving flipping.

[0032] The telescopic cylinder 35 is located on the upper end face of the flipping pressure plate 34, and the telescopic cylinder 35 is arranged symmetrically with respect to the piston rod of the lifting cylinder 32 to ensure uniform force distribution; both the telescopic cylinder 35 and the lifting cylinder 32 are single piston rod cylinders.

[0033] The scraper rod 36 is coaxially arranged with the piston rod of the telescopic cylinder 35. The scraper rod 36 passes through the through hole on the flip pressure plate 34. The scraper head 37 is detachably connected to the end of the scraper rod 36. The scraper head 37 is a wear part and can be easily replaced.

[0034] The scraper head 37 has a rotating structure and is coaxially arranged with the scraper rod 36. The bottom end of the scraper head 37 is conical with the tip pointing downwards. The tip is used to scrape the sample to be tested.

[0035] The working principle of this invention is as follows:

[0036] When conducting a scratch resistance test, first move the test seat 21 to the left along the dovetail groove on the frame 1 so that the flipping pressure plate 34 corresponds to the upper and lower positions of the inclined tooth surface 24, and fix the position of the test seat 21; then place the building product sample to be tested on the reverse teeth of the inclined tooth surface 24, and press the positioning baffle 25 against the lower part of the sample to complete the positioning of the sample.

[0037] The piston rods of the two telescopic cylinders 35 extend, driving the scraper rod 36 to move downwards, causing the scraper head 37 to extend out of the through hole on the tilting pressure plate 34; the piston rod of the lifting cylinder 32 extends downwards, driving the tilting pressure plate 34 to move downwards. Because the sample is tilted, the scraper head 37 contacts the sample surface, and the tilting pressure plate 34 gradually tilts until it is parallel to the sample. Figure 2 As shown in the figure; the lifting cylinder 32 continues to apply downward pressure, and at the same time, with the action of the inclined plane, the tip of the scraper 37 can scratch the sample surface until the force sensor on the lifting cylinder 32 measures the pressure to reach the set value. Within the allowable deformation range, the test is completed. The scratch resistance is calculated based on the width and depth of the scratches on the sample, and it is judged whether it meets the requirements.

[0038] To conduct a compressive strength test, first move the test stand 21 to the right along the dovetail groove on the frame 1 so that the flip plate 34 corresponds to the upper and lower positions of the top plane 23, and fix the position of the test stand 21; then place the building product sample to be tested on the top plane 23 to complete the positioning of the sample.

[0039] The piston rods of the two telescopic cylinders 35 retract, and the scraper rod 36 drives the scraper head 37 to retract into the through hole of the flipping pressure plate 34 until it is completely retracted into the through hole of the flipping pressure plate 34; the piston rod of the lifting cylinder 32 extends downward, driving the flipping pressure plate 34 to move downward, and the bottom end face of the flipping pressure plate 34 contacts the upper surface of the sample. The lifting cylinder 32 continues to apply pressure downward, so that the sample can be subjected to compressive strength test until the force sensor on the lifting cylinder 32 measures the pressure to the set value. Then, observe whether the sample shows signs of breakage, cracks, etc., so as to determine whether the compressive strength meets the requirements.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as falling within the protection scope of the present invention.

Claims

1. A device for testing the compressive strength and scratch resistance of a silicate construction product, comprising a frame (1); characterized in that: The rack (1) is provided with a test seat mechanism (2) and a lifting pressure mechanism (3); the test seat mechanism (2) is located on the upper end surface of the rack (1), the lifting pressure mechanism (3) is located on the gantry (31) at the top of the rack (1), and the lifting pressure mechanism (3) corresponds to the up-down position of the test seat mechanism (2); the test seat mechanism (2) comprises a test seat (21), the test seat (21) is movably connected with the upper end surface of the rack (1), and the test seat (21) is provided with a top plane (23) and an inclined tooth surface (24); the lifting pressure mechanism (3) comprises a lifting oil cylinder (32), a turnover pressure plate (34), a telescopic oil cylinder (35) and a scraping rod (36), the turnover pressure plate (34) is hinged to the bottom end of the piston rod of the lifting oil cylinder (32), and the turnover pressure plate (34) corresponds to the up-down position of the test seat (21); the telescopic oil cylinder (35) is located on the turnover pressure plate (34), the scraping rod (36) is connected with the piston rod of the telescopic oil cylinder (35), and the end of the scraping rod (36) is provided with a scraping head (37); the bottom end of the test seat (21) is provided with a dovetail structure, the dovetail structure is movably connected with the dovetail groove on the upper end surface of the rack (1); the top plane (23) is located at the top of the test seat (21) and is horizontally arranged, and the inclined tooth surface (24) is located on the side surface of the test seat (21) and is arranged obliquely; the top plane (23) is a smooth surface, the inclined tooth surface (24) is provided with reverse teeth, and the reverse teeth are distributed in rows; the angle between the inclined tooth surface (24) and the horizontal plane is 10-45°; the cylinder body of the lifting oil cylinder (32) is vertically arranged at the top of the gantry (31), the turnover pressure plate (34) is in the form of a flat plate and is hinged to the bottom end of the piston rod of the lifting oil cylinder (32) through a force-bearing hinge seat (33); the telescopic oil cylinder (35) is located on the upper end surface of the turnover pressure plate (34), and the telescopic oil cylinder (35) is arranged in a left-right symmetrical manner relative to the piston rod of the lifting oil cylinder (32); the telescopic oil cylinder (35) and the lifting oil cylinder (32) are both single-piston-rod oil cylinders; the lifting oil cylinder (32) is used for driving the up-down lifting movement of the turnover pressure plate (34), and the turnover pressure plate (34) can be turned over relative to the piston rod of the lifting oil cylinder (32).

2. The device for testing the compressive strength and scratch resistance of a silicate construction product according to claim 1, characterized in that: The lower end of the inclined tooth surface (24) is provided with a positioning baffle (25), the positioning baffle (25) is in the form of a sheet and is perpendicular to the inclined tooth surface (24).

3. The device for testing the compressive strength and scratch resistance of a silicate construction product according to claim 2, characterized in that: The scraping rod (36) is coaxially arranged with the piston rod of the telescopic oil cylinder (35), the scraping rod (36) penetrates through the through hole in the turnover pressure plate (34), and the scraping head (37) is detachably connected with the end of the scraping rod (36).

4. The device for testing the compressive strength and scratch resistance of a silicate construction product according to claim 3, characterized in that: The scraping head (37) is in the form of a rotary body structure, the scraping head (37) is coaxially arranged with the scraping rod (36), the bottom end of the scraping head (37) is in the form of a cone, and the sharp head faces downward.

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