Calibration metering equipment for experiment impact device

Abstract

The invention relates to calibration metering equipment for an experiment impact device, which comprises a main frame, the top of the main frame is provided with a top cross beam, and the bottom of the rear end of the top cross beam is connected with a vertical beam and an inclined beam; the bottom of the vertical beam and the bottom of the oblique beam are jointly connected with a base. The bottom of the top cross beam is provided with a drop hammer retracting and releasing tool, a suspension wire guiding tool and a standard height gear tool, and the standard height gear tool is provided with a plurality of wire positions for measuring height marks; a metering drop hammer is suspended below the suspension wire guiding tool, and the top of the metering drop hammer is connected with a drop hammer retracting and releasing tool through a suspension wire of the suspension wire guiding tool. During implementation, the standard height gear tool is used as a standard position caliper structure of a corresponding metering drop hammer. The bottom of the metering drop hammer is flush with a certain line position on the standard height gear tool, and the current standard height of the metering drop hammer can be observed and recorded through the line position.

Description

Technical Field

[0001] The present invention relates to the field of calibration and measurement of experimental equipment, and more particularly, to a calibration and measurement device for an experimental impact device. Background Art

[0002] In the development of modern industry, calibration and measurement devices are widely used in scientific research and laboratories. Since scientific experiments require precise measurements to prove the correctness of an observation or theory and to perform corresponding analysis and statistics, the accuracy and precision of relevant calibration and measurement devices are crucial. Calibration and measurement devices come in many different types, and according to the different physical quantities measured, the accuracy levels of calibration and measurement devices also vary, depending on the application field and the requirements for accuracy.

[0003] Especially for electrical and non-electrical explosion-proof equipment, during the type test process, it is necessary to verify the strength of their metal or non-metal enclosures and examine the impact of the impact test results on subsequent temperature rise tests, IP rating tests, or non-transmission of explosion tests. However, with the progress of the explosion-proof industry, especially the increasing demand for non-electric complete equipment for explosion-proof exports, the number of relevant explosion-proof certification projects has been increasing year by year, and the limitations of traditional test impact devices have gradually emerged. Because traditional impact devices rely on gravity to impact the upper surface of the equipment, it is convenient to adjust any side to a horizontal surface for impact for handheld devices or small devices, but for large equipment or complete sets of equipment, it is very difficult to adjust their expected impact surface to horizontal to receive vertical direction impact tests, or due to functional requirements, they can only maintain a single placement direction.

[0004] Because in the actual application process, large equipment or complete sets of equipment may actually be impacted from the side direction or horizontal direction, which may affect explosion-proof safety. Therefore, the demand for impact tests in the horizontal direction on the side (such as a vertical surface) still exists. Although the vertical direction impact tests performed by impact devices on the market are relatively extensive, there is also a lack of corresponding calibration and measurement equipment for the impact energy of impact devices to calibrate or measure their reliability and stability. Therefore, the calibration work of impact devices is usually evaluated through theoretical calculations, lacking reliable data support, and thus it is easy to cast doubt on the accuracy of impact devices and the authority of the laboratory settings.

[0005] In view of the above problems, there is no good solution on the market yet. Summary of the Invention

[0006] In view of the above technical problems in the related art, the present invention proposes a calibration and measurement device for an experimental impact device, which can overcome the above-mentioned deficiencies of the prior art.

[0007] To achieve the above technical objectives, the technical solution of the present invention is realized as follows: A calibration and measurement device for an experimental impact device, comprising a main frame. On the top of the main frame, there is a top crossbeam. At the bottom of the rear end of the top crossbeam, a vertical beam and an inclined beam are connected. The bottom of the vertical beam and the bottom of the inclined beam are jointly connected to a base. At the bottom of the top crossbeam, there are a drop hammer retracting and releasing tool, a suspension line guiding tool, and a standard height gear tool. On the standard height gear tool, there are several wire positions for measuring height marks. Below the suspension line guiding tool, a measuring drop hammer is suspended. The top of the measuring drop hammer is connected to the drop hammer retracting and releasing tool through the suspension line of the suspension line guiding tool. During implementation, the standard height gear tool serves as a standard position caliper structure corresponding to the measuring drop hammer. The bottom of the measuring drop hammer is level with a certain wire position on the standard height gear tool. The two can be connected by a horizontal line or a horizontal rod, etc. The current standard height of the measuring drop hammer can be observed and recorded through the corresponding wire position. The standard height gear tool can be adjusted according to different measurement requirements to assist in adjusting the measuring drop hammer to the standard height required for measurement. The drop hammer retracting and releasing tool, the suspension line guiding tool, and the standard height gear tool can all be realized by existing technologies.

[0008] Preferably, the suspension line guiding tool is provided with a smooth circular hole for the suspension line to slide through.

[0009] Preferably, the suspension line guiding tool further includes a guiding roller corresponding to the suspension line. The guiding roller assists in guiding the suspension line more smoothly, retracting and releasing the line, etc.

[0010] Preferably, a standard sample is vertically arranged on the vertical beam, and a standard sample is horizontally arranged on the base. The standard sample plate can be made of high-quality carbon steel plate from the same batch and the same sheet. The vertical beam is used to vertically place part of the standard sample, and the base is used to horizontally place another part of the standard sample. The standard sample can also be connected to the main frame with high strength by cooperating with multi-density screws and screw holes.

[0011] Preferably, the vertical beam and the base are respectively provided with sample mounting blocks for fixing the standard sample. The standard sample and the sample mounting block are connected with high strength through multi-density screws and screw holes.

[0012] Preferably, the suspension line guiding tool is located between the drop hammer retracting and releasing tool and the standard height gear tool.

[0013] Preferably, at the four corners of the bottom of the base, there are moving wheels for moving the main frame.

[0014] Preferably, the moving wheels are composed of wear-resistant polyurethane high-speed ball bearings.

[0015] Preferably, stabilizing adjustment members for adjusting the horizontal stability of the main frame are respectively provided at the four corners of the bottom of the base.

[0016] Preferably, the main frame is welded from high-strength steel.

[0017] Preferably, the drop hammer retracting and releasing tool includes a wire locking mechanism corresponding to the suspension wire, and the drop hammer retracting and releasing tool is made of a lightweight alloy group.

[0018] Preferably, the suspension wire is made of high-strength fiber wire.

[0019] Preferably, the top cross beam and the standard height gear tool are fixed to each other through a gear locking mechanism.

[0020] Preferably, an installation plate is provided at the upper part of the front end of the vertical beam. The installation plate can be used to install the experimental impact device, that is, the impact device to be measured, and assist in detecting the accuracy of the experimental impact device through horizontal impact.

[0021] Beneficial effects achieved by this design: The structure of the present invention is simple, convenient for maintenance, disassembly and assembly, and the connection is firm. The present invention can not only perform physical measurement data through the cooperation of the measuring drop hammer, the drop hammer retracting and releasing tool, the suspension wire guiding tool, etc., repeatedly obtain the average value at different heights, release the measuring drop hammer to vertically impact a horizontally placed standard sample, so as to obtain the vertical impact energy value corresponding to the measuring drop hammer; it can also set the experimental impact device - that is, the impact device to be measured through the installation plate, and can adjust the impact starting position of the impact device to different angles and release the impact on a vertically placed standard template, so as to obtain the horizontal impact related values of the impact device. By obtaining the vertical impact energy value and the horizontal impact related values respectively, the impact device can be effectively measured after comparison. Through the test comparison of horizontal impact and vertical impact, the present invention further ensures the reliability and authenticity of the experiment on the impact device.

[0022] The present invention can provide impact detection in both the vertical direction and the horizontal direction for products such as explosion-proof equipment, can accurately calibrate the horizontal impact and vertical impact energy values, and is convenient and fast to operate. Through the verification of the present invention, the reliability and stability of the experimental impact device can be significantly improved, the reliability and stability of the detection data can be maintained, and the authority of the experiment can be improved through actual data verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below with reference to the drawings.

[0024] Figure 1 is a perspective view of the calibration and measurement equipment.

[0025] Figure 2 isFigure 1 Enlarged view of part A in

[0026] Figure 3 is Figure 2 Enlarged view of the drop hammer retracting and deploying tool in

[0027] Figure 4 It is a usage scenario diagram of the calibration and metrology equipment configured with an experimental impact device described above.

[0028] Figure 5 It is a side view of the calibration and metrology equipment described above.

[0029] Figure 6 It is a schematic cross-sectional view of the measuring drop hammer suspended by the suspension wire passing through the suspension wire guiding tool.

[0030] Figure 7 It is a schematic diagram of the vertical impact and horizontal impact tests performed by the calibration and metrology equipment described above - the measuring drop hammer performs vertical impact tests, and the experimental impact device performs horizontal impact tests.

[0031] In the figure: 1. Main frame; 101. Top cross beam; 102. Vertical beam; 103. Inclined beam; 104. Base; 2. Drop hammer retracting and deploying tool; 3. Suspension wire guiding tool; 4. Standard height gear tool; 5. Standard template; 6. Moving wheel; 7. Stable adjustment part; 8. Measuring drop hammer; 9. Mounting plate; 10. Suspension wire; 11. Sample mounting block; 12. Experimental impact device. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present invention.

[0033] As Figures 1-7 shown, for the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention will be described in detail below in terms of specific usage methods.

[0034] A calibration and metrology equipment for an experimental impact device includes a main frame 1. The main frame 1 has a top cross beam 101 at the top. The bottom of the rear end of the top cross beam 101 is connected to a vertical beam 102 and an inclined beam 103; the bottom of the vertical beam 102 and the bottom of the inclined beam 103 are jointly connected to a base 104; The bottom of the top cross beam 101 is provided with a drop hammer retracting and deploying tool 2, a suspension wire guiding tool 3 and a standard height gear tool 4. The standard height gear tool 4 is provided with a plurality of wire positions for measuring height marks; A measuring drop hammer 8 is suspended below the wire guiding tool 3. The top of the measuring drop hammer 8 is connected to the drop hammer retracting and releasing tool 2 through a wire 10 of the wire guiding tool 3. The standard height gear tool 4 serves as a standard position caliper structure corresponding to the measuring drop hammer 8. During implementation, the standard height gear tool 4 serves as a standard position caliper structure corresponding to the measuring drop hammer 8. The bottom of the measuring drop hammer 8 is level with a certain wire position on the standard height gear tool 4. The two can be connected by a horizontal line or a horizontal rod, etc. The current standard height of the measuring drop hammer 8 can be observed and recorded through the corresponding wire position. The standard height gear tool 4 can be adjusted for measurement according to different measurement requirements to assist in adjusting the measuring drop hammer 8 to the standard height required for measurement. The drop hammer retracting and releasing tool 2, the wire guiding tool 3, and the standard height gear tool 4 can all be implemented using existing technologies.

[0035] In a possible embodiment, the wire guiding tool 3 is provided with a smooth circular hole through which the wire 10 slides.

[0036] In a possible embodiment, a guide roller 301 corresponding to the wire 10 is further provided in the wire guiding tool 3. The guide roller 301 assists in guiding the wire 10 more smoothly, retracting and releasing the wire, etc.

[0037] In a possible embodiment, a standard sample 5 is vertically provided on the vertical beam 102, and a standard sample 5 is horizontally provided on the base 104. The standard template 5 can be made of high-quality carbon steel plate from the same batch and the same sheet. The vertical beam 102 is used to vertically place part of the standard sample 5, and the base 104 is used to horizontally place another part of the standard sample 5. The standard sample 5 can also be connected to the main frame 1 with high strength in cooperation with multi-density screws and screw holes.

[0038] In a possible embodiment, the vertical beam 102 and the base 104 are respectively provided with sample mounting blocks 11 for fixing the standard sample 5. The standard sample 5 and the sample mounting blocks 11 are connected with high strength through multi-density screws and screw holes.

[0039] In a possible embodiment, the wire guiding tool 3 is located between the drop hammer retracting and releasing tool 2 and the standard height gear tool 4.

[0040] In a possible embodiment, moving wheels 6 for moving the main frame 1 are respectively provided at the four corners of the bottom of the base 104.

[0041] In a possible embodiment, the moving wheels 6 are composed of wear-resistant polyurethane high-speed ball bearings.

[0042] In a possible embodiment, stabilizing adjustment members 7 for adjusting the horizontal stability of the main frame 1 are respectively provided at the four corners of the bottom of the base 104.

[0043] In a possible embodiment, the main frame 1 is welded from high-strength steel.

[0044] In a possible embodiment, the drop hammer retracting and releasing tool 2 includes a wire locking mechanism corresponding to the suspension wire 10, and the material of the drop hammer retracting and releasing tool 2 is a lightweight alloy group.

[0045] In a possible embodiment, the material of the suspension wire 10 is selected as a high-strength fiber wire.

[0046] In a possible embodiment, the top cross beam 101 and the standard height gear tool 4 are fixed to each other through a gear locking mechanism.

[0047] In a possible embodiment, a mounting plate 9 is provided at the upper part of the front end of the vertical beam 102. The mounting plate 9 can be used to mount the experimental impact device 12, that is, the impact device to be measured, and assist in detecting the accuracy of the experimental impact device 12 through horizontal impact.

[0048] The metering process depends on actual needs and can refer to the following process: (A) Inspection: Check whether the air bubble in the spirit level on the frame is at the middle point, and adjust the stabilizing adjustment member 7 to make the calibration metering device reach an overall level. (B) Metering preparation: Cooperate with the drop hammer retracting and releasing tool 2, the suspension wire guiding tool 3, and the suspension wire 10 to suspend the metering drop hammer 8 onto the calibration metering device. Use the drop hammer retracting and releasing tool 2 to adjust the metering drop hammer 8 to the gear to be measured, and keep the bottom of the metering drop hammer 8 flush with the corresponding line position on the standard height gear tool 4. Set the standard sample 5 onto the vertical beam 102 and the base 104. (C) Impact the standard sample: Cut the suspension wire 10 with scissors to make the metering drop hammer 8 perform a standard vertical impact operation on the horizontally placed standard sample 5. This work is repeated three times. Preferably, perform 3 impacts on standard templates with different thicknesses (such as 0.4 mm, 0.6 mm, 0.8 mm) respectively. (D) Calculate and measure the corresponding vertical impact energy and impact point depth dimension of each standard sample 5 after vertical impact respectively, and statistically form a data sheet as the metering standard basis.

[0049] The experimental impact device 12 can select existing impact devices such as CN219957102U and 202422720368.7. Select the experimental impact device 12 to be tested as the device to be measured and perform the detection. The detection process depends on actual needs and can be carried out through the calibration and measurement device with reference to the following steps: (S1) Power on and debug: Install the experimental impact device 12 on the mounting plate 9 of the calibration and measurement device, check for any abnormalities, make the weight and connecting rod of the experimental impact device 12 vertically arranged, and ensure that the weight of the experimental impact device 12 can horizontally impact the standard sample 5 vertically arranged during testing. (S2) Calibrate and zero: Zero the relevant values of the experimental impact device 12. (S3) Lift to rest: Lift the weight at the lower part of the experimental impact device 12 to the measurement position. (S4) Release and impact: Release the weight and connecting rod of the experimental impact device 12 to make the experimental impact device 12 horizontally impact the standard template 5 vertically placed on the vertical beam 102. Since the weight of the experimental impact device 12 may be bounced off multiple times after contacting the vertically placed standard sample 5, ensure that there is no human intervention in its movement before the experimental impact device 12 returns to the stationary state as a whole. Perform 3 impacts respectively according to standard templates 5 of different thicknesses (such as 0.4 mm, 0.6 mm, 0.8 mm). (S5) Measure data: Record the depth dimension of the impact point corresponding to each standard template 5 after horizontal impact and the horizontal impact energy of the recorded impact device 11 respectively. (S6) Compare data: Compare and evaluate the accuracy of the experimental impact device 12 through the recorded depth dimension of the impact point and the horizontal impact energy of the impact device 11, combined with the measurement standard basis obtained during the measurement process. The comparison data belongs to the category of prior art and will not be elaborated here.

[0050] Working principle: Through the drop hammer retracting and releasing tool 2, suspension line guiding tool 3, measuring drop hammer 8, suspension line 10 and horizontally placed standard sample 5 in the calibration and measurement device, perform standard vertical impact operations to obtain the measurement standard basis for subsequent detection work. Install the experimental impact device 12 through the mounting plate 9 in the calibration and measurement device, make the weight of the experimental impact device 12 horizontally impact the vertically arranged standard sample 5 during testing, perform horizontal impact operations and measure.

[0051] In summary, through the above technical solutions, the present invention can not only obtain physical measurement data through the cooperation of a measuring drop hammer, a drop hammer retracting and releasing tool, a suspension line guiding tool, etc., repeatedly obtain the average value at different heights, release the measuring drop hammer to vertically impact a horizontally placed standard sample, so as to obtain the vertical impact energy value corresponding to the measuring drop hammer; but also set up an experimental impact device - that is, the impact device to be measured, through the mounting plate, can adjust the impact starting position of the impact device to different angles and release the impact on a vertically placed standard template, so as to obtain the horizontal impact related values of the impact device. By obtaining the vertical impact energy value and the horizontal impact related values respectively, the impact device can be effectively measured after comparison. Through the test comparison of horizontal impact and vertical impact, the present invention further ensures the reliability and authenticity of the experiment on the impact device.

[0052] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Claims

1. A calibration and measurement device for an experimental impact device, characterized in that, It includes a main frame (1). On the top of the main frame (1), there is a top cross beam (101). At the bottom of the rear end of the said top cross beam (101), there are a vertical beam (102) and an inclined beam (103) connected. The bottom of the vertical beam (102) and the bottom of the inclined beam (103) are jointly connected to a base (104). At the bottom of the top cross beam (101), there are a drop hammer retracting and releasing tool (2), a plumb line guiding tool (3), and a standard height gear tool (4). On the standard height gear tool (4), there are several wire positions for measuring height marks. Below the plumb line guiding tool (3), a measuring drop hammer (8) is suspended. The top of the measuring drop hammer (8) is connected to the drop hammer retracting and releasing tool (2) through a plumb line (10) of the plumb line guiding tool (3).

2. The calibration and measurement device according to claim 1, characterized in that, The plumb line guiding tool (3) is provided with a smooth circular hole for the plumb line (10) to slide through. In the plumb line guiding tool (3), there is also a guiding roller (301) corresponding to the plumb line (10).

3. The calibration metering device according to claim 1, characterized in that On the vertical beam (102), a standard sample (5) is vertically arranged. On the base (104), a standard sample (5) is horizontally arranged.

4. The calibration and measurement device according to claim 1, characterized in that, The vertical beam (102) and the base (104) are respectively provided with sample mounting blocks (11) for fixing the standard sample (5). The standard sample (5) and the sample mounting block (11) are connected with high strength through multi-density screws and screw holes.

5. The calibration metering device according to claim 1, wherein The plumb line guiding tool (3) is located between the drop hammer retracting and releasing tool (2) and the standard height gear tool (4).

6. The calibration metering device according to claim 1, characterized in that, At the four corners of the bottom of the base (104), there are moving wheels (6) for moving the main frame (1).

7. The calibration metrology device according to claim 6, wherein The moving wheels (6) are composed of wear-resistant polyurethane high-speed ball bearings.

8. The calibration metering device according to claim 1, characterized in that, At the four corners of the bottom of the base (104), there are stability adjusting parts (7) for adjusting the horizontal stability of the main frame (1).

9. The calibration metering device according to claim 1, wherein The main frame (1) is welded by high-strength steel. The drop hammer retracting and releasing tool (2) includes a wire locking mechanism corresponding to the plumb line (10). The material of the drop hammer retracting and releasing tool (2) is a lightweight alloy group. The material of the plumb line (10) is selected as high-strength fiber wire.

10. The calibration metering device according to claim 1, wherein, The top cross beam (101) and the standard height gear tool (4) are fixed through a gear locking mechanism. On the upper part of the front end of the vertical beam (102), there is a mounting plate (9).

Images