Improved hydraulic universal testing machine

Abstract

The utility model provides an improved hydraulic universal testing machine which comprises a bottom plate, a first fixing plate is arranged above the bottom plate, a first clamping assembly is arranged in the middle of the first fixing plate, and two loading oil cylinders located on the two sides of the first clamping assembly are further installed in the first fixing plate. Pistons of the two loading oil cylinders are provided with a second fixing plate, the middle position of the bottom side of the second fixing plate is provided with a second clamping assembly corresponding to the first clamping assembly, and the top side of the second fixing plate is provided with a first pressing plate; the device disclosed by the utility model has the beneficial effects that the second clamping assembly and the first pressing plate on the second fixing plate can be driven to move up and down through the lifting of the pistons of the two loading oil cylinders, and a material to be detected can be stretched and compressed under the action of the first clamping assembly and the second pressing plate; therefore, the main body structure of the hydraulic universal testing machine is redesigned by adopting upper space compression and lower space stretching.

Description

Technical Field

[0001] The utility model relates to the technical field of material detection experimental equipment, in particular to an improved hydraulic universal testing machine. Background Art

[0002] The hydraulic universal testing machine is a multifunctional material testing instrument used to test the mechanical properties of metals and non-metals. It is widely used in construction, machinery and technical monitoring. It is one of the main equipment in scientific research departments and mechanical laboratories of colleges and universities. The mechanical properties and other parameters of various materials can be measured on the universal testing machine. The commonly used universal testing machine models on the market use upper space stretching and lower space compression, which cannot meet the needs of modern social development. Therefore, it is necessary to redesign a new universal testing machine with different experimental spaces. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an improved hydraulic universal testing machine to solve the problem that the commonly used universal testing machines on the market use upper space stretching and lower space compression, which cannot meet the needs of modern social development.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] An improved hydraulic universal testing machine comprises a base plate, a first fixed plate is provided above the base plate, a first supporting assembly is provided in the middle position of the first fixed plate, two loading cylinders are installed in the first fixed plate and are located on both sides of the first supporting assembly, a second fixed plate is provided on the pistons of the two loading cylinders, a second supporting assembly is provided in the middle position of the bottom side of the second fixed plate corresponding to the first supporting assembly, a first pressing plate is installed on the top side of the second fixed plate, a calibration beam is provided above the second fixed plate, and a second pressing plate is installed on the bottom side of the calibration beam corresponding to the first pressing plate.

[0006] In the above technical solution, a first holding component is provided on the first fixed plate and a second holding component is provided on the second fixed plate, thereby forming a tensile test space between the first fixed plate and the second fixed plate, and a first pressing plate is provided on the second fixed plate and a second pressing plate is provided on the calibration beam, thereby forming a compression test space between the second fixed plate and the calibration beam.

[0007] In one embodiment of the present invention, the bottom side of the first fixing plate is mounted on the bottom plate via a plurality of first supporting columns, and the bottom side of the calibration beam is mounted on the first fixing plate via a plurality of second supporting columns.

[0008] In one embodiment of the utility model, the number of the first support columns and the second support columns are four, the four support columns are grouped in pairs and are symmetrically arranged on the base plate or the first fixed plate along the center line of the base plate or the first fixed plate, and each of the loading cylinders is located between two first support columns and the second support columns.

[0009] In one embodiment of the utility model, load sensors are installed on the pistons of the two loading cylinders, and the pistons of the two loading cylinders are connected to the second fixed plate through the load sensors. This technical solution can drive the second fixed plate connected to the load sensor to move up and down through the lifting and lowering of the two loading cylinder pistons, thereby playing a role in stretching and compressing the material to be tested. The load sensor can weigh and measure the force of the material to be tested.

[0010] In one embodiment of the utility model, the first supporting assembly and the second supporting assembly both include a small push-pull oil cylinder and a fixed chuck driven by the small push-pull oil cylinder, and the small push-pull oil cylinder is installed in the first fixed plate and the second fixed plate. This technical solution drives the fixed chuck by the small push-pull oil cylinder, so as to tightly clamp the material to be tested.

[0011] As described above, the improved hydraulic universal testing machine of the utility model has the following beneficial effects:

[0012] The utility model can drive the second supporting assembly and the first pressing plate on the second fixed plate to move up and down through the lifting and lowering of the two loading oil cylinder pistons, and under the action of the first supporting assembly and the second pressing plate, the material to be tested can be stretched and compressed. Therefore, the utility model adopts upper space compression and lower space stretching, and redesigns the main structure of the hydraulic universal testing machine, which not only simplifies the structure of the universal testing machine, but also the test space is completely adjusted by the stroke of the loading oil cylinder, and there is no need to set up a mechanical transmission system, so that the test machine result is simplified. In addition, the utility model is not only rigid, but also strong and durable, and easy to maintain, and has advantages in the fields of construction engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shown is a front view schematic diagram of an improved hydraulic universal testing machine disclosed in an embodiment of the utility model;

[0014] Figure 2 Shown is a front cross-sectional schematic diagram of an improved hydraulic universal testing machine disclosed in an embodiment of the utility model.

[0015] Component number description

[0016] 1. Base plate; 2. First support column; 3. First fixed plate; 4. Loading cylinder; 5. First supporting assembly; 6. Second support column; 7. Second fixed plate; 8. Second supporting assembly; 9. First pressure plate; 10. Calibration beam; 11. Second pressure plate; 12. Load sensor; 13. Push-pull small cylinder; 14. Fixed chuck. DETAILED DESCRIPTION

[0017] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0018] See also Figure 1 and Figure 2 The utility model provides an improved hydraulic universal testing machine, which is an application of experimental space conversion in a testing machine, comprising a bottom plate 1, a first fixed plate 3 is arranged above the bottom plate 1, the bottom side of the first fixed plate 3 is mounted on the bottom plate 1 through a plurality of first support columns 2, a first supporting assembly 5 is arranged in the middle of the first fixed plate 3, two loading cylinders 4 located on both sides of the first supporting assembly 5 are also arranged in the first fixed plate 3, wherein the loading cylinders 4 are arranged on both sides of the first supporting assembly 5, and the cylinder bodies of the loading cylinders 4 pass through the first fixed plate 3, and second fixed plates 7 are arranged on the pistons of the two loading cylinders 4, wherein the pistons of the two loading cylinders 4 are both mounted with load sensors 12, and the pistons of the two loading cylinders 4 are connected to the second fixed plate 7 through the load sensors 12;

[0019] The lifting and lowering of the pistons of the two loading cylinders 4 can drive the second fixed plate 7 connected to the load sensor 12 to move up and down, thereby stretching and compressing the material to be tested. The load sensor 12 can also weigh and measure the force of the material to be tested. A second supporting component 8 is provided at the middle position of the bottom side of the second fixed plate 7 corresponding to the first supporting component 5. The first supporting component 5 is provided on the first fixed plate 3 and the second supporting component 8 is provided on the second fixed plate 7, so that a stretching test space is formed between the first fixed plate 3 and the second fixed plate 7. The first supporting component 5 and the second supporting component 8 both include a small push-pull cylinder 13 and a fixed chuck 14 driven by the small push-pull cylinder 13, and the small push-pull cylinder 13 is installed in the first fixed plate 3 and the second fixed plate 7. The fixed chuck 14 is driven by the small push-pull cylinder 13, so that the material to be tested can be tightly clamped.

[0020] exist Figure 1 and Figure 2In the figure, a first pressure plate 9 is installed on the top side of the second fixed plate 7, and a calibration beam 10 is provided above the second fixed plate 7, and the bottom side of the calibration beam 10 is installed on the first fixed plate 3 through a plurality of second support columns 6, and a second pressure plate 11 is also installed on the bottom side of the calibration beam 10 corresponding to the first pressure plate 9. By providing the first pressure plate 9 on the second fixed plate 7 and the second pressure plate 11 on the calibration beam 10, a compression test space is formed between the second fixed plate 7 and the calibration beam 10, wherein the number of the first support columns 2 and the second support columns 6 are both four, and the four support columns are grouped in pairs and are symmetrically arranged on the bottom plate 1 or the first fixed plate 3 along the center line of the bottom plate 1 or the first fixed plate 3, and each loading cylinder 4 is located between two first support columns 2 and the second support columns 6.

[0021] Specifically, the utility model is an application of experimental space conversion in a testing machine, which is characterized by the conversion of experimental space. Different from the upper space stretching and lower space compression of traditional testing machines, the utility model adopts a four-column double-cylinder double-space structure, with upper space compression and lower space stretching; when using the improved hydraulic universal testing machine for experiments, the lifting and lowering of the pistons of the two loading cylinders 4 can drive the second supporting assembly 8 and the first pressing plate 9 on the second fixed plate 7 to move up and down, and under the action of the first supporting assembly 5 and the second pressing plate 11, it can play the role of stretching and compressing the material to be tested, and the load sensor 12 can weigh and measure the force of the material to be tested, thereby completing various experiments.

[0022] The utility model can drive the second supporting assembly 8 and the first pressing plate 9 on the second fixed plate 7 to move up and down through the lifting and lowering of the pistons of the two loading cylinders 4, and under the action of the first supporting assembly 5 and the second pressing plate 11, the material to be tested can be stretched and compressed. Therefore, the utility model adopts upper space compression and lower space stretching, and redesigns the main structure of the hydraulic universal testing machine, which not only simplifies the structure of the universal testing machine, but also the test space is completely adjusted by the stroke of the loading cylinder 4, and there is no need to set up a mechanical transmission system, so that the test machine result is simplified. In addition, the utility model is not only rigid, but also strong and durable, and easy to maintain, and has advantages in the fields of construction engineering.

[0023] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An improved hydraulic universal testing machine, comprising a bottom plate (1), characterized in that: A first fixing plate (3) is provided above the base plate (1), a first supporting assembly (5) is provided in the middle of the first fixing plate (3), two loading cylinders (4) are installed in the first fixing plate (3) and are located on both sides of the first supporting assembly (5), a second fixing plate (7) is provided on the pistons of the two loading cylinders (4), a second supporting assembly (8) is provided in the middle of the bottom side of the second fixing plate (7) corresponding to the first supporting assembly (5), a first pressing plate (9) is installed on the top side of the second fixing plate (7), a calibration beam (10) is provided above the second fixing plate (7), and a second pressing plate (11) is installed on the bottom side of the calibration beam (10) corresponding to the first pressing plate (9).

2. An improved hydraulic universal testing machine according to claim 1, characterized in that: The bottom side of the first fixing plate (3) is mounted on the bottom plate (1) via a plurality of first supporting columns (2), and the bottom side of the calibration beam (10) is mounted on the first fixing plate (3) via a plurality of second supporting columns (6).

3. An improved hydraulic universal testing machine according to claim 2, characterized in that: The number of the first support columns (2) and the number of the second support columns (6) are both four, and the four support columns are arranged in groups of two and symmetrically on the base plate (1) or the first fixed plate (3) along the center line of the base plate (1) or the first fixed plate (3), and each of the loading cylinders (4) is located between two first support columns (2) and two second support columns (6).

4. The improved hydraulic universal testing machine according to claim 1, characterized in that: A load sensor (12) is installed on the pistons of the two loading cylinders (4), and the pistons of the two loading cylinders (4) are connected to the second fixing plate (7) via the load sensor (12).

5. The improved hydraulic universal testing machine according to claim 1, characterized in that: The first holding assembly (5) and the second holding assembly (8) both comprise a small push-pull oil cylinder (13) and a fixed chuck (14) driven by the small push-pull oil cylinder (13), and the small push-pull oil cylinder (13) is installed in the first fixing plate (3) and the second fixing plate (7).

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