Device and method for proportionally amplifying and outputting input tension and pressure

Abstract

The invention discloses a device and method for proportionally amplifying and outputting input tension and pressure, and relates to the field of tension and pressure tests, the device comprises a pull head, a connecting plate is arranged on the outer side of the pull head, a tension and pressure connector is arranged at the top end of the pull head, supporting plates are arranged at the two ends of the connecting plate, and a first connecting shaft is movably arranged in the connecting plate. By arranging the pull head, the connecting plate, the spherical pressure head and the supporting block, the pull head is pulled and pressed to provide pull loading force F for the pull head, the pull head drives the spherical pressure head to move downwards through the connecting plate, so that the spherical pressure head provides pressing loading force F1 for a pressed part, a pressure sensor at the bottom end of the supporting block detects the numerical value of the pressing loading force F1, and the corresponding output force value after amplification is measured; and after the test, measuring the relationship between the input force and the output force through a formula F1 = B / A > F, and drawing a schematic diagram of the relationship between the input force and the output force, so that the pull-pressure proportional amplification test can be effectively carried out.

Description

Technical Field

[0001] The invention relates to the field of tension and pressure testing, and in particular to a device and method for proportionally amplifying input tension and pressure to output. Background Art

[0002] The tension-compression test is a test method that can measure both the tensile strength and the compressive strength of a material.

[0003] When the existing tensile and compressive test equipment is insufficient in capacity or the applied tensile and compressive pressure is insufficient, it is necessary to use other equipment to amplify the tensile and compressive pressure at a fixed ratio to meet the test requirements. Therefore, there is an urgent need for a device and method for amplifying the input tensile and compressive pressure ratio and outputting it. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for proportionally amplifying the input tensile pressure to output in order to solve the problem that when the existing tensile and compressive test equipment has insufficient capacity or the applied tensile pressure is insufficient, it is necessary to use other equipment to amplify the tensile pressure at a fixed ratio to meet the requirements of the test.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device and method for proportionally amplifying an input pulling and pressing force output, comprising a pulling head, a connecting plate is provided on the outer side of the pulling head, and a pulling and pressing connecting head is provided on the top of the pulling head, support plates are provided at both ends of the connecting plate, and a first connecting shaft is movably provided inside the connecting plate, a spherical pressure head is installed at the bottom end of the connecting plate, a first oil-free bearing is provided on the outer wall of the first connecting shaft, a bottom plate is fixed to the bottom end of the support plate, and a pressure plate is provided on the left side of the support plate, a second connecting shaft is movably provided on the inner side of the support plate, a support block is installed on the inner side of the pressure plate, a pressure sensor is installed at the bottom of the support block, and a pressed part is engaged with the top of the support block.

[0006] Preferably, snap rings are provided at both ends of the first connecting shaft, the first connecting shaft is fixedly connected to the mounting hole on the inner side of the connecting plate through the snap rings, and the pulling head is rotatably connected to the connecting plate through the first connecting shaft and the first oil-free bearing.

[0007] Preferably, both ends of the second connecting shaft and the first connecting shaft are provided with snap rings, and the second connecting shaft is fixedly connected to the mounting hole on the inner side of the support plate through the snap rings.

[0008] Preferably, the support block and the base plate are fixedly mounted via a pressing plate, and a mounting groove matching the pressure sensor is provided at the bottom of the support block.

[0009] Preferably, the spherical pressure head and the connecting plate are fixedly installed via a fixing groove, and the pressed piece is fixedly engaged with the supporting block.

[0010] Preferably, a second oil-free bearing is disposed on the outer wall of the second connecting shaft, and the connecting plate and the supporting plate are rotatably connected via the second connecting shaft and the second oil-free bearing.

[0011] Preferably, a method for proportionally amplifying an input tensile force output comprises the following steps: Step 1: Assume that the center distance between the first connecting shaft and the second connecting shaft is B, the center distance between the spherical pressure head and the second connecting shaft is A, and the loading force applied by the tension-compression connecting head to the pulling head is F; Step 2: During the tension and compression test, the tension and compression connector provides a tensile loading force F for the pull head. After the pull head is subjected to the force, it moves on the connecting plate and drives the connecting plate to rotate upward through the second connecting axis. When the connecting plate rotates, it drives the spherical pressure head to move downward, so that the spherical pressure head provides a compressive loading force F1 for the pressed part. Then the loading force F1=B / A)F.

[0012] Preferably, the magnification value of F is B / A.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges a pulling head, a connecting plate, a spherical pressure head and a supporting block. The pulling and pressing connecting head provides a pulling loading force F for the pulling head. The pulling head drives the spherical pressure head to move downward through the connecting plate, so that the spherical pressure head provides a compressive loading force F1 for the pressed part. The pressure sensor at the bottom end of the supporting block detects the value of the compressive loading force F1, measures the corresponding output force value after amplification, and uses it to verify whether the output force reaches the target value F. After the test, the relationship between the input force and the output force is measured through the formula F1=B / A)F, and a schematic diagram of the relationship between the input force and the output force is drawn, so that the pulling and pressing ratio amplification test can be effectively carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 is a schematic diagram of a first connecting shaft of the present invention; Figure 4 is a schematic diagram of a second connecting shaft of the present invention; Figure 5 is a schematic diagram of a pressure sensor of the present invention; Figure 6 is a graph showing the relationship between input force and output force of the present invention; Figure 7 It is a proportional relationship diagram of input force and output force of the present invention.

[0015] In the figure: 1. pulling head; 2. connecting plate; 3. first connecting shaft; 4. snap ring; 5. supporting plate; 6. bottom plate; 7. pressing plate; 8. supporting block; 9. spherical pressing head; 10. second connecting shaft; 11. first oil-free bearing; 12. second oil-free bearing; 13. pulling and pressing connecting head; 14. pressed part; 15. pressure sensor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 7, a device and method for amplifying the input tension and pressure ratio to output, comprising a pull head 1, a connecting plate 2 is arranged on the outside of the pull head 1, and a tension and pressure connecting head 13 is arranged on the top of the pull head 1, support plates 5 are arranged at both ends of the connecting plate 2, and a first connecting shaft 3 is movably arranged inside the connecting plate 2, a spherical pressure head 9 is installed at the bottom end of the connecting plate 2, a first oil-free bearing 11 is arranged on the outer wall of the first connecting shaft 3, a bottom plate 6 is fixed to the bottom end of the support plate 5, and a pressure plate 7 is arranged on the left side of the support plate 5, a second connecting shaft 10 is movably arranged on the inner side of the support plate 5, a support block 8 is installed on the inner side of the pressure plate 7, and a support plate 9 is installed on the inner side of the pressure plate 7. A pressure sensor 15 is installed at the bottom of the support block 8, and a pressed piece 14 is engaged with the top of the support block 8. A clamping ring 4 is provided at both ends of the first connecting shaft 3. The first connecting shaft 3 is fixedly connected to the mounting hole on the inner side of the connecting plate 2 through the clamping ring 4. The pull head 1 is rotatably connected to the connecting plate 2 through the first connecting shaft 3 and the first oil-free bearing 11. A clamping ring 4 is provided at both ends of the second connecting shaft 10 and the first connecting shaft 3, and the second connecting shaft 10 is fixedly connected to the mounting hole on the inner side of the support plate 5 through the clamping ring 4. The support block 8 is fixedly installed with the bottom plate 6 through the pressure plate 7, and the bottom of the support block 8 is provided with a pressure sensor. The spherical pressure head 9 and the connecting plate 2 are fixedly installed through the fixing groove, the pressed piece 14 is fixedly engaged with the supporting block 8, the outer wall of the second connecting shaft 10 is provided with a second oil-free bearing 12, the connecting plate 2 and the supporting plate 5 are rotatably connected through the second connecting shaft 10 and the second oil-free bearing 12, the magnification value of F is B / A, firstly, the tension and compression connector 13 of the external tension equipment is fixedly connected to the pull head 1, and then the pressed piece 14 is placed on the supporting block 8, at this time, the tension and compression connector 13 provides the pull head 1 with a tensile loading force F (input force), and the pull head 1 moves on the connecting plate 2 after being subjected to the force, and The connecting plate 2 is driven to rotate upward through the second connecting shaft 10. When the connecting plate 2 rotates, the spherical pressure head 9 is driven to move downward, so that the spherical pressure head 9 provides a compressive loading force F1 (output force) for the pressed part 14, thereby performing a tensile pressure test. At the same time, the pressure sensor 15 at the bottom of the support block 8 detects the value of the compressive loading force F1, measures the corresponding output force value after amplification, and uses it to verify whether the output force has reached the target value F. After the test, the relationship between the input force and the output force is measured through the formula F1=B / A)F, and a schematic diagram of the relationship between the input force and the output force and a table of the proportional relationship between the input force and the output force are drawn.

[0018] A method for proportionally amplifying an input tension pressure to output comprises the following steps: Step 1: Assume that the center distance between the first connecting shaft 3 and the second connecting shaft 10 is B, the center distance between the spherical pressure head 9 and the second connecting shaft 10 is A, and the loading force applied by the tension-compression connector 13 to the pull head 1 is F; Step 2: During the tension and compression test, the tension and compression connector 13 provides a tensile loading force F for the pull head 1. After being subjected to the force, the pull head 1 moves on the connecting plate 2 and drives the connecting plate 2 to rotate upward through the second connecting shaft 10. When the connecting plate 2 rotates, it drives the spherical pressure head 9 to move downward, so that the spherical pressure head 9 provides a compressive loading force F1 for the pressed part 14, and the loading force F1=B / A)F.

[0019] Working principle: When the present invention is used, first, the tension and compression connector 13 of the external tension equipment is fixedly connected to the slider 1, and then the pressed piece 14 is placed on the support block 8. At this time, the tension and compression connector 13 provides the slider 1 with a tensile loading force F (input force). After the slider 1 is subjected to the force, it moves on the connecting plate 2, and drives the connecting plate 2 to rotate upward through the second connecting shaft 10. When the connecting plate 2 rotates, it drives the spherical pressure head 9 to move downward, so that the spherical pressure head 9 provides a compressive loading force F1 (output force) for the pressed piece 14, thereby performing a tensile and compressive test. At the same time, the pressure sensor 15 at the bottom of the support block 8 detects the value of the compressive loading force F1, measures the corresponding output force value after amplification, and uses it to verify whether the output force has reached the target value F. After the test, the relationship between the input force and the output force is measured by the formula F1=B / A)F, and a schematic diagram of the relationship between the input force and the output force is drawn. In actual test loading, when the test tensile pressure is insufficient and the loading equipment capacity is insufficient, the test loading force can be effectively proportionally amplified, thereby effectively realizing the test loading force.

[0020] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for proportionally amplifying an input pulling force to output a pull head (1), characterized in that: A connecting plate (2) is arranged on the outside of the slider (1), and a tension-compression connecting head (13) is arranged on the top of the slider (1), support plates (5) are arranged at both ends of the connecting plate (2), and a first connecting shaft (3) is movably arranged inside the connecting plate (2), a spherical pressure head (9) is installed at the bottom end of the connecting plate (2), and a first oil-free bearing (11) is arranged on the outer wall of the first connecting shaft (3), a bottom plate (6) is fixed at the bottom end of the support plate (5), and a pressure plate (7) is arranged on the left side of the support plate (5), a second connecting shaft (10) is movably arranged on the inside of the support plate (5), a support block (8) is installed on the inside of the pressure plate (7), a pressure sensor (15) is installed at the bottom of the support block (8), and a pressed piece (14) is engaged with the top of the support block (8).

2. A device for proportionally amplifying input tension pressure as claimed in claim 1, characterized in that: Snap rings (4) are provided at both ends of the first connecting shaft (3); the first connecting shaft (3) is fixedly connected to the mounting hole on the inner side of the connecting plate (2) via the snap rings (4); and the pull head (1) is rotatably connected to the connecting plate (2) via the first connecting shaft (3) and the first oil-free bearing (11).

3. The device for proportionally amplifying input tension pressure as claimed in claim 2, characterized in that: Both ends of the second connecting shaft (10) and the first connecting shaft (3) are provided with snap rings (4), and the second connecting shaft (10) is fixedly connected to the mounting hole on the inner side of the support plate (5) via the snap rings (4).

4. The device for proportionally amplifying input tension pressure as claimed in claim 1, characterized in that: The support block (8) and the bottom plate (6) are fixedly mounted via a pressure plate (7), and a mounting groove matching the pressure sensor (15) is provided at the bottom of the support block (8).

5. The device for proportionally amplifying input tension pressure as claimed in claim 1, characterized in that: The spherical pressure head (9) and the connecting plate (2) are fixedly mounted via a fixing groove, and the pressed piece (14) and the supporting block (8) are fixedly engaged.

6. The device for proportionally amplifying input tension pressure as claimed in claim 1, characterized in that: The outer wall of the second connecting shaft (10) is provided with a second oil-free bearing (12), and the connecting plate (2) and the supporting plate (5) are rotatably connected via the second connecting shaft (10) and the second oil-free bearing (12).

7. A method for proportionally amplifying and outputting an input tension and pressure force, applicable to a device for proportionally amplifying and outputting an input tension and pressure force as claimed in any one of claims 1 to 6, characterized in that: The steps include: Step 1: Assume that the center distance between the first connecting shaft (3) and the second connecting shaft (10) is B, the center distance between the spherical pressure head (9) and the second connecting shaft (10) is A, and the loading force applied by the tension-compression connecting head (13) to the pulling head (1) is F; Step 2: During the tension and compression test, the tension and compression connector (13) provides a tensile loading force F for the pull head (1). After the pull head (1) is subjected to the force, it moves on the connecting plate (2) and drives the connecting plate (2) to rotate upward through the second connecting shaft (10). When the connecting plate (2) rotates, it drives the spherical pressure head (9) to move downward, so that the spherical pressure head (9) provides a compressive loading force F1 for the pressed part (14). Then, the loading force F1=(B / A)F.

8. A method for proportionally amplifying input tension pressure as claimed in claim 7, characterized in that: The magnification value of F is B / A.

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