Calibration metering equipment for experiment impact device

Abstract

The utility model 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] This utility model relates to the field of experimental equipment metrology, and more specifically, to a calibration metrology device for experimental impact devices. Background Technology

[0002] In the development of modern industry, calibration and metrology equipment is widely used in scientific research and laboratories. Because 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 the relevant calibration and metrology equipment are crucial. Calibration and metrology equipment comes in many different types, and its accuracy level varies depending on the physical quantity being measured, as well as the application field and the required accuracy.

[0003] Especially for electrical and non-electrical explosion-proof equipment, type testing requires verifying the strength of its metallic or non-metallic casing and examining the impact test results on subsequent temperature rise tests, IP rating tests, or non-explosion propagation tests. However, with the advancement of the explosion-proof industry, especially the increasing demand for explosion-proof exports of non-electric complete sets of equipment, the number of related explosion-proof certification projects has been rising year by year, and the limitations of traditional test impact devices have gradually become apparent. This is because traditional impact devices rely on gravity to impact the upper surface of the equipment. For handheld or small devices, it is easy to adjust any side to a horizontal surface for impact testing. However, for large or complete sets of equipment, it is difficult to adjust the expected impact surface to a horizontal position to accept vertical impact tests, or functional requirements may limit the placement to a single orientation.

[0004] In practical applications, large equipment or complete sets of equipment may be subjected to lateral or horizontal impacts, which could affect explosion-proof safety. Therefore, the need for horizontal impact testing on sides (such as vertical surfaces) remains. Although vertical impact testing of impact devices is widely available on the market, there is a lack of corresponding calibration and metrology equipment to calibrate or measure the reliability and stability of these devices. As a result, the metrological verification of impact devices is usually evaluated through theoretical calculations, which lack reliable data support and thus easily raises doubts about the accuracy of the impact devices and the authority of laboratory testing.

[0005] There are currently no good solutions on the market to address the above problems. Summary of the Invention

[0006] In view of the above-mentioned technical problems in related technologies, this utility model proposes a calibration and measurement device for experimental impact devices, which can overcome the above-mentioned shortcomings of the prior art.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0008] A calibration and measurement device for an experimental impact apparatus includes a main frame. The main frame has a top crossbeam at its top, and a vertical beam and an inclined beam are connected to the bottom of the rear end of the top crossbeam. The bottom of the vertical beam and the bottom of the inclined beam are connected to a base.

[0009] The bottom of the top crossbeam is equipped with a drop hammer retraction tool, a plumb line guide tool, and a standard height setting tool. The standard height setting tool has several line positions for measuring height marks.

[0010] A measuring drop hammer is suspended below the plumb line guide tool, and the top of the measuring drop hammer is connected to the drop hammer retraction tool via the plumb line of the plumb line guide tool. In implementation, the standard height setting tool serves as a standard position caliper structure corresponding to the measuring drop hammer. The bottom of the measuring drop hammer is flush with a certain line on the standard height setting tool, which can be connected by a level line or level bar. The current standard height of the measuring drop hammer can be observed and recorded through the corresponding line. The standard height setting tool can be adjusted according to different measurement requirements, assisting in adjusting the measuring drop hammer to the required standard height. The drop hammer retraction tool, plumb line guide tool, and standard height setting tool can all be implemented using existing technologies.

[0011] Preferably, the suspension guide tool is provided with a smooth circular hole through which the suspension line slides.

[0012] Preferably, the suspension line guiding tool is further provided with a guide roller corresponding to the suspension line. The guide roller assists in guiding the suspension line more smoothly and retracting the line.

[0013] Preferably, standard samples are vertically arranged on the vertical beam and horizontally arranged on the base. The standard samples can be made from high-quality carbon steel plates from the same batch and the same sheet. The vertical beam allows some standard samples to be placed vertically, while the base allows other standard samples to be placed horizontally. The standard samples can also be connected to the main frame with high strength using multi-density screws and screw holes.

[0014] Preferably, the vertical beam and the base are respectively provided with sample mounting blocks for fixing the standard sample, and the standard sample and the sample mounting blocks are connected with high strength through multi-density screws and screw holes.

[0015] Preferably, the plumb line guide tool is located between the drop hammer retraction tool and the standard height setting tool.

[0016] Preferably, the base is provided with four wheels at the bottom corners for moving the main frame.

[0017] Preferably, the movable wheel is composed of a friction-resistant polyurethane high-speed ball bearing.

[0018] Preferably, the base is provided with stabilizing adjustment components at the four corners of its bottom for adjusting the horizontal stability of the main frame.

[0019] Preferably, the main frame is welded from high-strength steel.

[0020] Preferably, the drop hammer retraction tool includes a locking mechanism for the corresponding suspension line, and the material of the drop hammer retraction tool is a lightweight alloy.

[0021] Preferably, the suspension wire is made of high-strength fiber thread.

[0022] Preferably, the top crossbeam and the standard height gear tool are fixed together by a gear locking mechanism.

[0023] Preferably, a mounting plate is provided at the upper part of the front end of the vertical beam. The mounting plate can be used to install the experimental impact device, that is, the impact device being measured, to assist in detecting the accuracy of the experimental impact device through horizontal impact.

[0024] The beneficial effects of this design are as follows: This utility model has a simple structure, is easy to assemble and disassemble, and has a firm connection. It can not only perform physical measurement data by using a measuring drop hammer, drop hammer release and retraction tools, and a plumb line guide tool, repeatedly obtaining average values ​​at different heights, and releasing the measuring drop hammer to impact a horizontally placed standard sample vertically, thus obtaining the vertical impact energy value corresponding to the measuring drop hammer; it can also set up the experimental impact device—the impact device being measured—using a mounting plate. The impact starting position of the impact device can be adjusted to different angles and released to impact a vertically placed standard sample, thus obtaining 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 through comparison. This utility model further ensures the reliability and authenticity of the impact device experiment through the comparison of horizontal and vertical impact tests.

[0025] This invention can be used for products such as explosion-proof equipment, providing impact testing in both vertical and horizontal directions. It can accurately calibrate the energy values ​​of horizontal and vertical impacts, and is convenient and quick to operate. Verification of this invention has shown that it can significantly improve the reliability and stability of experimental impact devices, maintain the reliability and stability of test data, and enhance the authority of experiments through actual data verification. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Figure 1 This is a three-dimensional view of the calibration and measurement equipment.

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the image.

[0029] Figure 3 yes Figure 2 Enlarged view of the drop hammer retraction tool.

[0030] Figure 4 This is a diagram illustrating the usage scenario of the calibration and measurement equipment configured with the experimental impact device.

[0031] Figure 5 This is a side view of the calibration and measurement equipment.

[0032] Figure 6 This is a cross-sectional schematic diagram of the suspension line passing through the suspension line guide tool to suspend the metering drop hammer.

[0033] Figure 7 This is a schematic diagram of the calibration and measurement equipment performing vertical and horizontal impact tests—the measuring drop hammer performs the vertical impact test, and the experimental impact device performs the horizontal impact test.

[0034] In the diagram: 1. Main frame; 101. Top crossbeam; 102. Vertical beam; 103. Diagonal beam; 104. Base; 2. Drop hammer deployment and retraction tool; 3. Plumbing guide tool; 4. Standard height setting tool; 5. Standard template; 6. Moving wheels; 7. Stabilizing adjustment component; 8. Measuring drop hammer; 9. Mounting plate; 10. Plumbing line; 11. Sample mounting block; 12. Experimental impact device. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0036] like Figure 1-7 As shown, in order to facilitate understanding of the above technical solution of this utility model, the above technical solution of this utility model will be described in detail below through specific usage methods.

[0037] A calibration and measurement device for an experimental impact apparatus includes a main frame 1. The main frame 1 has a top crossbeam 101 at its top. The bottom rear end of the top crossbeam 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 connected to a base 104.

[0038] The bottom of the top crossbeam 101 is equipped with a drop hammer retraction tool 2, a plumb line guide tool 3, and a standard height setting tool 4. The standard height setting tool 4 is equipped with several line positions for measuring height marks.

[0039] A measuring hammer 8 is suspended below the plumb line guide tool 3. The top of the measuring hammer 8 is connected to the hammer retraction tool 2 via the plumb line 10 of the plumb line guide tool 3. The standard height setting tool 4 serves as a standard position caliper structure corresponding to the measuring hammer 8. In implementation, the standard height setting tool 4 acts as a standard position caliper structure corresponding to the measuring hammer 8. The bottom of the measuring hammer 8 is flush with a certain line on the standard height setting tool 4, and the two can be connected by a horizontal line or level bar, etc. The current standard height of the measuring hammer 8 can be observed and recorded through the corresponding line. The standard height setting tool 4 can be adjusted according to different measurement requirements to help adjust the measuring hammer 8 to the required standard height. The hammer retraction tool 2, the plumb line guide tool 3, and the standard height setting tool 4 can all be implemented using existing technologies.

[0040] In one possible embodiment, the suspension guide tool 3 is provided with a smooth circular hole through which the suspension line 10 slides.

[0041] In one possible embodiment, the suspension line guide tool 3 is further provided with a guide roller 301 corresponding to the suspension line 10. The guide roller 301 assists in guiding the suspension line 10 more smoothly, and in retracting the line.

[0042] In one possible embodiment, a standard sample 5 is vertically mounted on the vertical beam 102, and a standard sample 5 is horizontally mounted on the base 104. The standard samples 5 can be made of high-quality carbon steel plates from the same batch and the same sheet. The vertical beam 102 allows some standard samples 5 to be placed vertically, while the base 104 allows other standard samples 5 to be placed horizontally. The standard samples 5 can also be connected to the main frame 1 with high strength using multi-density screws and screw holes.

[0043] In one possible embodiment, the vertical beam 102 and the base 104 are respectively provided with sample mounting blocks 11 for fixing the standard sample 5, and the standard sample 5 and the sample mounting blocks 11 are connected with high strength through multi-density screws and screw holes.

[0044] In one possible embodiment, the plumb line guide tool 3 is located between the drop hammer retraction tool 2 and the standard height setting tool 4.

[0045] In one possible embodiment, the base 104 is provided with four wheels 6 at its bottom corners for moving the main frame 1.

[0046] In one possible embodiment, the movable wheel 6 is composed of a friction-resistant polyurethane high-speed ball bearing.

[0047] In one possible embodiment, the base 104 is provided with stabilizing adjustment members 7 at the four corners of its bottom for adjusting the horizontal stability of the main frame 1.

[0048] In one possible embodiment, the main frame 1 is welded from high-strength steel.

[0049] In one possible embodiment, the drop hammer retraction tool 2 includes a locking mechanism corresponding to the suspension line 10, and the drop hammer retraction tool 2 is made of a lightweight alloy.

[0050] In one possible embodiment, the suspension wire 10 is made of high-strength fiber thread.

[0051] In one possible embodiment, the top crossbeam 101 and the standard height gear tool 4 are fixed together by a gear locking mechanism.

[0052] In one possible embodiment, a mounting plate 9 is provided on 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 being measured, to assist in detecting the accuracy of the experimental impact device 12 through horizontal impact.

[0053] The measurement process depends on actual needs and can refer to the following procedure: (A) Inspection: Check whether the air bubble in the level on the frame is at the midpoint, and adjust the stabilizing adjustment component 7 to make the calibration measurement equipment level. (B) Measurement preparation: Using the drop hammer retraction tool 2, the plumb line guide tool 3, and the plumb line 10, suspend the measurement drop hammer 8 onto the calibration measurement equipment. Use the drop hammer retraction tool 2 to adjust the measurement drop hammer 8 to the required measurement position, keeping the bottom of the measurement drop hammer 8 flush with the corresponding line on the standard height position tool 4. Set the standard sample 5 onto the vertical beam 102 and the base 104. (C) Impact on the standard sample: Cut the plumb line 10 with scissors so that the measurement drop hammer 8 performs a standard vertical impact operation on the horizontally placed standard sample 5. This operation is repeated three times. It is preferable to perform three impacts on standard samples of different thicknesses (such as 0.4mm, 0.6mm, and 0.8mm). (D) Calculate and measure the vertical impact energy and impact point depth of each standard sample 5 after vertical impact, and compile the data into a table as the basis for measurement standards.

[0054] The experimental impact device 12 can be an existing impact device such as CN219957102U or 202422720368.7. The experimental impact device 12 to be tested is selected as the device to be measured. The testing process depends on the actual needs and can be performed using the calibration measurement equipment by referring to the following steps: (S1) Power on and debug: Install the experimental impact device 12 onto the mounting plate 9 of the calibration measurement equipment, check for any abnormalities, ensure the weight and connecting rod of the experimental impact device 12 are vertically arranged, and ensure the weight of the experimental impact device 12 can horizontally impact the vertically placed standard sample 5 during testing. (S2) Zero calibration: Zero the relevant values ​​of the experimental impact device 12. (S3) Pull up to stand still: Pull up the weight at the bottom of the experimental impact device 12 to the measurement position. (S4) Release impact: Release the weight and connecting rod of the experimental impact device 12, so that the experimental impact device 12 horizontally impacts the vertically placed standard sample 5 on the vertical beam 102. Because the hammer of the experimental impact device 12 may bounce off the vertically placed standard sample 5 multiple times after contact, ensure that its movement is not interfered with before the experimental impact device 12 returns to a stationary state. Perform three impacts on standard samples 5 of different thicknesses (e.g., 0.4mm, 0.6mm, 0.8mm). (S5) Measurement data: Record the depth of the impact point and the horizontal impact energy of the impact device 11 for each standard sample 5 after horizontal impact. (S6) Data comparison: Compare the recorded depth of the impact point and the horizontal impact energy of the impact device 11 with the measurement standards obtained during the measurement process to evaluate the accuracy of the experimental impact device 12. The comparison data falls within the scope of existing technology and will not be elaborated here.

[0055] Working principle: Using the drop hammer release tool 2, the plumb line guide tool 3, the measuring drop hammer 8, the plumb line 10, and the horizontally placed standard sample 5 in the calibration and metrology equipment, a standard vertical impact operation is performed to obtain the metrological standard basis for subsequent testing. The experimental impact device 12 is installed on the mounting plate 9 in the calibration and metrology equipment, allowing the hammer of the experimental impact device 12 to horizontally impact the vertically placed standard sample 5 during testing, performing a horizontal impact operation and obtaining the measurement.

[0056] In summary, through the above technical solutions, this utility model not only allows for physical measurement data acquisition through the use of a measuring drop hammer, drop hammer release and retraction tools, and a plumb line guide tool, repeatedly obtaining average values ​​at different heights, and releasing the measuring drop hammer to impact a horizontally placed standard sample vertically, thereby obtaining the vertical impact energy value corresponding to the measuring drop hammer; it also allows for the setup of an experimental impact device—the impact device being measured—using a mounting plate. The impact starting position of the impact device can be adjusted to different angles, and the impact can be released to impact a vertically placed standard sample, thereby obtaining 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 through comparison. This utility model further ensures the reliability and authenticity of the impact device experiment through the comparison of horizontal and vertical impact tests.

[0057] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A calibration and measurement device for an experimental impact apparatus, characterized in that, Includes a main frame (1), the main frame (1) is provided with a top crossbeam (101) at the top, and the bottom of the rear end of the top crossbeam (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 connected to a base (104). The bottom of the top crossbeam (101) is provided with a drop hammer release tool (2), a plumb line guide tool (3) and a standard height setting tool (4), and the standard height setting tool (4) is provided with several line positions for measuring height marks; A measuring drop hammer (8) is suspended below the plumb line guide tool (3), and the top of the measuring drop hammer (8) is connected to the drop hammer release tool (2) through the plumb line (10) of the plumb line guide tool (3).

2. The calibration and measurement equipment as described in claim 1, characterized in that, The suspension guide tool (3) is provided with a smooth circular hole through which the suspension line (10) slides; The suspension line guide tool (3) is also provided with a guide roller (301) corresponding to the suspension line (10).

3. The calibration and measurement equipment as described in claim 1, characterized in that, A standard sample (5) is vertically arranged on the vertical beam (102), and a standard sample (5) is horizontally arranged on the base (104).

4. The calibration and measurement equipment as described in 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 blocks (11) are connected with high strength through multi-density screws and screw holes.

5. The calibration and measurement equipment as described in claim 1, characterized in that, The plumb line guide tool (3) is located between the drop hammer release tool (2) and the standard height gear tool (4).

6. The calibration and measurement equipment as described in claim 1, characterized in that, The base (104) is provided with four wheels (6) at the bottom corners for moving the main frame (1).

7. The calibration and measurement equipment as described in claim 6, characterized in that, The moving wheel (6) is composed of friction-resistant polyurethane high-speed ball bearings.

8. The calibration and measurement equipment as described in claim 1, characterized in that, The base (104) has four stabilizing adjustment components (7) at the bottom corners for adjusting the horizontal stability of the main frame (1).

9. The calibration and measurement equipment as described in claim 1, characterized in that, The main frame (1) is welded from high-strength steel; The drop hammer retraction tool (2) includes a locking mechanism for the corresponding suspension line (10), and the material of the drop hammer retraction tool (2) is a lightweight alloy group; The suspension wire (10) is made of high-strength fiber wire.

10. The calibration and measurement equipment as described in claim 1, characterized in that, The top crossbeam (101) and the standard height gear tool (4) are fixed together by a gear locking mechanism; The upper part of the front end of the vertical beam (102) is provided with an installation plate (9).

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