CN216926376U - Novel special testing machine for mechanical property test of building gypsum - Google Patents
Novel special testing machine for mechanical property test of building gypsum Download PDFInfo
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- CN216926376U CN216926376U CN202220547350.XU CN202220547350U CN216926376U CN 216926376 U CN216926376 U CN 216926376U CN 202220547350 U CN202220547350 U CN 202220547350U CN 216926376 U CN216926376 U CN 216926376U
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Abstract
The utility model discloses a novel testing machine special for testing mechanical properties of building gypsum, which comprises a cabinet, a workbench, an upper cross beam, a middle cross beam, a servo motor, a guide upright post and a ball screw pair, wherein the workbench is arranged on the cabinet, and the middle cross beam is arranged on the guide upright post through a cross beam guide device; the middle cross beam penetrates through the ball screw pair and is arranged on a nut of the ball screw pair; the servo motor is connected with a gear reducer, the output end of the gear reducer is provided with a reducer loading belt wheel, the reducer loading belt wheel is in transmission connection with a lead screw loading belt wheel through an arc tooth synchronous toothed belt, and the lead screw loading belt wheel is positioned below a ball screw pair; a gypsum mechanical property testing device is arranged between the upper cross beam and the middle cross beam; the inside PLC controller that is provided with of rack for electric parts controls in the testing machine. The testing machine can be used for batch sample detection, and is high in detection efficiency, high in measurement precision, more compact in structural design and convenient to maintain.
Description
Technical Field
The utility model relates to the field of testing machine equipment, in particular to a novel testing machine special for testing mechanical properties of building gypsum.
Background
The building gypsum can be used for producing plastering gypsum, gypsum mortar, gypsum wallboard and ceiling. The decorative sound absorption board, gypsum block and other decorative parts are building materials widely used in building engineering.
The building gypsum is white powder which is obtained by calcining raw materials such as natural dihydrate gypsum or industrial by-products (mainly comprising dihydrate gypsum) at 107-170 ℃ to obtain mature gypsum and grinding the calcined gypsum to obtain the white powder, wherein the main component of the white powder is beta-type hemihydrate gypsum. After the building gypsum is hardened, the building gypsum has good heat insulation and sound absorption performance, and better fireproof performance and moisture absorption performance. Before the building gypsum leaves a factory, the performance of the building gypsum needs to be detected so as to meet the corresponding requirements.
The test detection equipment on the existing market has low use efficiency and poor reliability and needs to be further optimized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel testing machine special for testing the mechanical property of building gypsum, which has a plurality of advantages compared with the traditional equipment, and comprises a transmission mechanism consisting of a servo motor, a speed reducer and a precise screw rod, wherein the screw rod drives a middle cross beam to move up and down, so that the compression or bending test and the hardness test of a sample are completed; the testing machine can be used for batch sample detection, and is high in detection efficiency, high in measurement precision, more compact in structural design and convenient to maintain.
In order to achieve the purpose, the utility model provides the following technical scheme:
a novel testing machine special for testing mechanical properties of building gypsum comprises a machine cabinet, a workbench, an upper cross beam, a middle cross beam, a servo motor, a guide upright post and a ball screw pair, wherein the workbench is mounted on the machine cabinet, and the upper cross beam is fixed on the upper portions of the ball screw pair and the guide upright post; the middle cross beam is arranged on the guide upright post through a cross beam guide device; the middle cross beam penetrates through the ball screw pair and is arranged on a nut of the ball screw pair; the servo motor is positioned below the workbench and fixed on the machine cabinet; the servo motor is connected with a gear reducer, the output end of the gear reducer is provided with a reducer loading belt wheel, the reducer loading belt wheel is in transmission connection with a lead screw loading belt wheel through an arc tooth synchronous toothed belt, and the lead screw loading belt wheel is positioned below the ball screw pair; a gypsum mechanical property testing device is arranged between the upper cross beam and the middle cross beam; the inside PLC controller that is provided with of rack for control electrical component among the testing machine.
Further, the gypsum mechanical property testing device comprises a bending strength testing mechanism, a bending strength testing force sensor, a compression testing mechanism and a compression testing force sensor; the bending strength testing mechanism is positioned above the middle cross beam; the compression test mechanism is located above the workbench.
Further, the bending strength testing force sensor is arranged at the lower part of the upper cross beam; the compression-resistant testing force sensor is arranged at the lower part of the middle cross beam.
Further, the device for testing the mechanical property of the gypsum further comprises a hardness testing force sensor, a hardness meter and an indentation depth measuring displacement mechanism, wherein the indentation depth measuring displacement mechanism is positioned above the middle cross beam.
Further, the hardness test force sensor is mounted on a lower portion of the upper cross member.
Furthermore, a sample dust receiving disc is arranged above the workbench.
Further, the screw loading belt wheel is installed below the ball screw pair through a loading bearing.
The utility model has the beneficial effects that:
the novel testing machine adopts a double-space structure, a gypsum compression test is specially used in the lower space, the bending and hardness tests can be carried out in the upper space, the trouble of replacing a clamp is conveniently avoided in the tests, and the multipurpose of one machine is realized; the experimental data can be uploaded to a computer terminal for automatic storage; the samples with the same parameters can be subjected to batch sampling; the structure is compact, the design is scientific and reasonable, the reliability of the test data is improved, and the utility model is stronger.
Drawings
FIG. 1 is a schematic view showing the overall structure of a testing machine in example 1;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view showing the overall structure of the testing machine in example 2;
FIG. 4 is a side view of FIG. 3;
in the figure: 1-upper beam, 2-lead screw protective cover, 3-guide upright post, 4-beam guide device, 5-middle beam, 6-sample dust collecting disc, 7-workbench, 8-lead screw loading belt wheel, 9-speed reducer loading belt wheel, 10-precision gear speed reducer, 11-servo motor, 12-bending strength testing force sensor, 13-bending testing mechanism, 14-compression testing force sensor, 15-compression testing mechanism, 16-cabinet, 17-ball screw pair, 18-loading bearing, 19-hardness testing force sensor, 20-hardness meter and 21-indentation depth measuring displacement mechanism.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, it should be noted that the terms of orientation such as left, right, up, down, head, and tail in the embodiments of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting. The following detailed description of implementations of the utility model refers to specific embodiments.
Embodiment 1 a novel building gypsum mechanical properties tests special testing machine, the structure is shown in fig. 1 and 2, including rack 16, workstation 7, entablature 1, entablature 5, servo motor 11, direction stand 3 and ball screw pair 17, workstation 7 installs on rack 16, and sample dust tray 6 is installed to the top of workstation 7. And a screw rod protective cover 2 is arranged on one side of the machine cabinet 16 close to the ball screw assembly 17.
Specifically, the upper beam 1 is fixed on the upper parts of the ball screw pair 17 and the guide upright 3; the middle cross beam 5 is arranged on the guide upright post 3 through a cross beam guide device 4; the middle cross beam 5 penetrates through the ball screw pair 17 and is arranged on a nut of the ball screw pair 17; the servo motor 11 is positioned below the workbench 7 and is fixed on the cabinet 16; the servo motor 11 is connected with a gear reducer 10, the output end of the gear reducer 10 is provided with a reducer loading belt wheel 9, the reducer loading belt wheel 9 is in transmission connection with a lead screw loading belt wheel 8 through an arc tooth synchronous toothed belt, and the lead screw loading belt wheel 8 is installed below a ball screw pair 17 through a loading bearing 18; a gypsum mechanical property testing device is arranged between the upper cross beam 1 and the middle cross beam 5; the inside PLC controller that is provided with of rack 16 for control the electrical component in the testing machine.
In this embodiment, the device for testing the mechanical properties of the gypsum comprises a breaking strength testing mechanism 13, a breaking strength testing force sensor 12, a compression testing mechanism 15 and a compression testing force sensor 14; the bending strength testing mechanism 13 is positioned above the middle cross beam 5; the compression test mechanism 15 is located above the table 7. The compression test mechanism 15 is the prior art, and the specific structure thereof can be referred to JC-T725-.
The anti-breaking strength testing force sensor 12 is arranged at the lower part of the upper cross beam 1; the compression-resistant test force sensor 14 is installed at the lower portion of the middle cross member 5.
Specifically, the sensors communicate data with the PLC controller inside the cabinet 16 and are stored inside the controller.
The working principle of the tester is as follows: the PLC controller controls the servo motor 11 to rotate to drive the gear speed reducer 10 to rotate, so that the speed reducer loading belt wheel 9 rotates, the arc tooth synchronous toothed belt drives the screw rod loading belt wheel 8 and the ball screw pair 17 to rotate, the middle cross beam 5 is driven to move up and down, and the force loading process is achieved.
A, gypsum compression strength test: the compression test mechanism 15 (namely the compression clamp) is placed in the space below the middle cross beam (the compression clamp conforms to JC/T-725, a sample is placed between an upper pressing plate and a lower pressing plate of the clamp), the middle cross beam 5 is controlled by the PLC to move downwards to apply force to the gypsum compression clamp until the sample is broken, the test is completed, and the PLC automatically records the test result.
B, testing the breaking strength of the gypsum: the bending strength testing mechanism 13 (namely, a bending strength testing clamp which meets the requirements of the standard JC/T724-2005) is placed in the upper testing space, the sample is placed in the center of the lower support of the bending strength testing mechanism 13, the testing machine is started, the middle cross beam 5 moves upwards, the force loading process is realized on the sample until the sample is broken, the middle cross beam 5 moves downwards after the test is finished, the testing process is finished, and the PLC automatically records the testing result.
Embodiment 2 a novel building gypsum mechanical properties tests special testing machine, the structure is shown in fig. 3 and 4, and the difference with embodiment 1 is that gypsum mechanical properties testing device still includes hardness test force sensor 19, sclerometer 20 and indentation depth measurement displacement mechanism 21, and indentation depth measurement displacement mechanism 21 is located the top of middle cross beam 5. A hardness test force sensor 19 is mounted on the lower portion of the upper beam 1.
The method for measuring the hardness of the gypsum comprises the following steps: installing a hardness tester 20 and an indentation depth measurement displacement mechanism 21 (adopting a digital display dial indicator and an installation support, installing the dial indicator on the support, fixing the dial indicator on a middle cross beam through the support in an adsorption manner, pointing a gauge needle to a hardness tester pressure head, directly reading compression depth, automatically calculating hardness value, and meeting GB/T17669.3-1999) in the upper test space of a testing machine, placing a sample on the middle cross beam 5, placing a sample base plate below the sample, starting the testing machine, enabling the middle cross beam 5 to move upwards, realizing a loading process, adopting a high-precision hardness testing force sensor 19 and a displacement sensor, and having high measurement precision: the depth measurement reaches 0.001 mm, and the load precision is as follows: 0.2 percent; the hardness tester 20 directly obtains a hardness value (H) by a depth measurement method through the control of the hardness testing force sensor 19 and the displacement sensor by using a 10mm ball pressure head; the loading direction of the steel ball is vertical to the surface to be measured of the sample, the distance between each test piece is one fourth of the length of the test piece, the outermost point is at least 20mm away from the edge of the test piece, a load of 10N is applied firstly, then the load is added to 200N within 2S, the test piece is stood for 15S, the ball mark depth is measured after the load is removed for 15S, the operation of the machine is simple, the installation of the test piece is finished, the test result can be obtained by starting one key of the test, and the requirement of hardness measurement in the measurement of the mechanical property of the building gypsum in GB/T17669.3-1999 is met.
The tester provided by the utility model can also be used for performing compression tests on bricks and tiles, metal products, components and other materials by adding proper test accessories.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A novel testing machine special for testing mechanical properties of building gypsum comprises a cabinet (16), a workbench (7), an upper cross beam (1), a middle cross beam (5), a servo motor (11), a guide upright post (3) and a ball screw pair (17), and is characterized in that the workbench (7) is installed on the cabinet (16), and the upper cross beam (1) is fixed on the upper portions of the ball screw pair (17) and the guide upright post (3); the middle cross beam (5) is arranged on the guide upright post (3) through a cross beam guide device (4); the middle cross beam (5) penetrates through the ball screw pair (17) and is mounted on a nut of the ball screw pair (17); the servo motor (11) is positioned below the workbench (7) and is fixed on the cabinet (16); the servo motor (11) is connected with a gear speed reducer (10), the output end of the gear speed reducer (10) is provided with a speed reducer loading belt wheel (9), the speed reducer loading belt wheel (9) is in transmission connection with a lead screw loading belt wheel (8) through an arc tooth synchronous toothed belt, and the lead screw loading belt wheel (8) is positioned below the ball screw pair (17); a gypsum mechanical property testing device is arranged between the upper cross beam (1) and the middle cross beam (5); and a PLC (programmable logic controller) is arranged in the cabinet (16) and is used for controlling electrical components in the testing machine.
2. The novel special testing machine for testing the mechanical property of the building gypsum as claimed in claim 1, wherein the testing device for testing the mechanical property of the gypsum comprises a breaking strength testing mechanism (13), a breaking strength testing force sensor (12), a compression testing mechanism (15) and a compression testing force sensor (14); the bending strength testing mechanism (13) is positioned above the middle cross beam (5); the compression test mechanism (15) is positioned above the workbench (7).
3. The novel special testing machine for testing the mechanical property of the building gypsum as claimed in claim 2, wherein the breaking strength testing force sensor (12) is installed at the lower part of the upper cross beam (1); the compression-resistant test force sensor (14) is arranged at the lower part of the middle cross beam (5).
4. The novel special testing machine for mechanical property testing of building gypsum as claimed in claim 1, characterized in that the device for mechanical property testing of gypsum further comprises a hardness testing force sensor (19), a hardness tester (20) and an indentation depth measuring displacement mechanism (21), wherein the indentation depth measuring displacement mechanism (21) is located above the middle cross beam (5).
5. The novel special tester for testing mechanical properties of building gypsum as claimed in claim 4, wherein the hardness testing force sensor (19) is installed at the lower part of the upper beam (1).
6. The novel special tester for testing the mechanical property of the building gypsum as claimed in claim 1, wherein a sample dust receiving disc (6) is installed above the workbench (7).
7. The novel special testing machine for mechanical property test of building gypsum as claimed in claim 1, wherein the lead screw loading pulley (8) is mounted below the ball screw pair (17) through a loading bearing (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220547350.XU CN216926376U (en) | 2022-03-14 | 2022-03-14 | Novel special testing machine for mechanical property test of building gypsum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220547350.XU CN216926376U (en) | 2022-03-14 | 2022-03-14 | Novel special testing machine for mechanical property test of building gypsum |
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| CN216926376U true CN216926376U (en) | 2022-07-08 |
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| CN202220547350.XU Active CN216926376U (en) | 2022-03-14 | 2022-03-14 | Novel special testing machine for mechanical property test of building gypsum |
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- 2022-03-14 CN CN202220547350.XU patent/CN216926376U/en active Active
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