Impact hammer for testing explosion-proof product

Abstract

The utility model discloses an impact hammer for testing an explosion-proof product, which comprises a support, symmetrical electromagnets are arranged at two ends of the back of the support, a bearing is arranged in the middle of the support, the bearing is provided with a bearing seat, the support is movably connected with one end of a connecting rod through the bearing, a hammer body is arranged at the other end of the connecting rod, and the hammer body is connected with the support. And a replaceable hammer head in the same direction as the electromagnet is arranged on the hammer body. According to the utility model, the electromagnet is fixed on a vertical tested object to carry out an impact test; the gyroscope sensor monitors the impact energy value of the hammer head, and the display displays the impact value, so that the impact energy of the hammer head can be conveniently and quickly adjusted on site by a user so as to adapt to different materials and test requirements. The impact hammer can be used for testing the surfaces of equipment shells with different roughness and different materials, is convenient to carry, is suitable for non-electric complete equipment which is large in size and weight and cannot be transported to a laboratory for testing, and is very high in practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof equipment testing, in particular to an impact hammer used for testing explosion-proof products. Background Art

[0002] For both electrical and non-electrical explosion-proof equipment, type testing requires verifying the strength of their metal or non-metallic casings and examining the impact of impact test results on subsequent temperature rise testing, IP rating testing, or explosion-proof testing. However, with advancements in the explosion-proof industry, particularly the growing demand for export of non-electrical complete sets of equipment, the number of explosion-proof certification projects has increased annually, and the limitations of traditional impact testing equipment have become increasingly apparent. Because traditional impact testing relies on gravity to impact the upper surface of the equipment, handheld or small devices can easily be adjusted to a horizontal position for impact. However, for large or complete sets of equipment, adjusting the intended impact surface to a horizontal position is difficult, or functional requirements require it to be positioned in a single orientation. However, in actual use, equipment may be subject to lateral impact, which could compromise explosion-proof safety. Therefore, the need for impact testing on vertical surfaces remains. Therefore, it is necessary to develop a new type of impact testing equipment that can conveniently, quickly, and accurately perform impact testing on vertical surfaces.

[0003] There is currently no effective solution to the above problems. Utility Model Content

[0004] In response to the above technical problems in the related art, the present invention proposes an impact hammer for explosion-proof product testing, which can overcome the above deficiencies in the prior art.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0006] An impact hammer for testing explosion-proof products includes a bracket, symmetrical electromagnets are provided at both ends of the back of the bracket, a bearing is provided in the middle of the bracket, the bearing is provided with a bearing seat, the bracket is movably connected to one end of a connecting rod through the bearing, the other end of the connecting rod is provided with a hammer body, and the hammer body is provided with a replaceable hammer head in the same direction as the electromagnet.

[0007] Furthermore, the bearing is a high-speed ball bearing.

[0008] Furthermore, the connecting rod is a lightweight rocker rod.

[0009] Furthermore, the connecting rod and the hammer body are fixedly connected by bolts.

[0010] Furthermore, a gyro sensor is provided on the bearing seat, the gyro sensor is communicatively connected to a display, the display is integrated in a control button box, and the control button box is electrically connected to the electromagnet.

[0011] Furthermore, a signal processing PCB board is provided in the display.

[0012] Furthermore, the display and the control button box are both connected to a power source.

[0013] The beneficial effects of this utility model include: This device performs impact testing by attaching an electromagnet to a vertical object under test; a gyroscope sensor monitors the hammer's impact energy, which is displayed on a display. This allows for quick and easy on-site adjustment of the impact energy to accommodate different materials and test requirements. The impact hammer can be used to test surfaces of varying roughness and materials, and is portable, making it suitable for non-electrical equipment that cannot be transported to a laboratory for testing due to its bulk and weight. This device offers significant practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 is a front view of an impact hammer according to an embodiment of the present utility model;

[0016] Figure 2 It is a right side view of the impact hammer according to an embodiment of the present utility model;

[0017] Figure 3 is a top view of an impact hammer according to an embodiment of the present utility model;

[0018] Figure 4 This is a diagram of the structure and application of the impact hammer according to the embodiment of the utility model.

[0019] In the figure: 1. Bracket; 2. Bearing seat; 3. Connecting rod; 4. Hammer; 5. Electromagnet; 6. Hammer head; 7. Display; 8. Control button box; 9. Gyro sensor; 10. Test object. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 are within the scope of protection of the present invention.

[0021] like Figure 1-4 As shown, an impact hammer for explosion-proof product testing according to an embodiment of the present invention includes a bracket 1, symmetrical electromagnets 5 are provided at both ends of the back of the bracket 1, a bearing is provided in the middle of the bracket 1, and the bearing is provided with a bearing seat 2. The bracket 1 is movably connected to one end of a connecting rod 3 through the bearing 2, and the other end of the connecting rod 3 is provided with a hammer body 4, and the hammer body 4 is provided with a replaceable hammer head 6 in the same direction as the electromagnet 5.

[0022] In the embodiment, the bearing is a high-speed ball bearing. The connecting rod 3 is a lightweight rocker. The connecting rod 3 is fixedly connected to the hammer body 4 by bolts.

[0023] In the embodiment, the bearing seat 2 is provided with a gyro sensor 9, which is in communication with a display 7. The display 7 is integrated in a control button box 8, and the control button box 8 is electrically connected to the electromagnet 5. In the embodiment, a signal processing PCB board is provided in the display 7.

[0024] In the embodiment, the display 7 and the control button box 8 are both connected to a power source.

[0025] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0026] In practice, the impact hammer for explosion-proof product testing described in this utility model has a bearing connecting the bracket and connecting rod. The bearing portion comprises a bearing and a bearing seat. The bracket is connected to the inner ring of the bearing, and the bearing seat is bolted to the connecting rod. The gyroscope sensor is bonded to the bearing seat. The display and control button box are bolted to the bracket. The connecting rod and impact hammer are also bolted together. The impact head has internal threads at the rear end and is bolted to the impact hammer. The electromagnet and bracket are bolted together.

[0027] This new impact tester can be used for mechanical impact testing of the vertical surface of explosion-proof equipment during type testing. It can provide mechanical impact energies of 20J / 7J / 4J / 2J / 1J, depending on actual test requirements. The bracket, connecting rod, and impact hammer are detachable for easy portability. The impact head is removable for easy hardening, repair, and replacement. An electromagnet secures the bracket to the surface of the device under test, and a knob adjusts the suction force to suit different surfaces. A display shows the expected impact energy of the hammer if dropped from its current position in real time.

[0028] The specific usage process is as follows:

[0029] Assembly: Take the connecting rod, bracket, display, and weight out of the storage box one by one. First, use a tool to connect the fixing bolts between the bracket and the connecting rod. Slowly move the connecting rod to check if there is any obstruction or shaking during the swinging process. Then connect the sensor cable to the display. Finally, use a tool to connect the fixing bolts between the connecting rod and the weight.

[0030] Power on and debug: After assembly, first check that the electromagnet force adjustment knob is at its minimum position. Then, power on the lithium battery and wait for the screen to initialize until you reach the system homepage. Slightly move the weight to observe whether the value on the display changes accordingly. Mounting on the surface of the test sample: This step requires two people. One person is responsible for placing the test equipment in the intended installation location. The other person, after securing the position, turns the magnetic force adjustment knob to a minimum value and observes the horizontal angle value of the bracket on the display. Adjust the bracket until it is horizontal. Finally, turn the magnetic force knob to its maximum value. The person responsible for adjusting the position should then slowly release the knob.

[0031] Calibration zeroing: Let the hammer and connecting rod hang naturally to a position perpendicular to the ground and wait for them to stop. At this time, the distance between the hammer head and the impact point should not be greater than 5mm. Press the calibration zeroing button on the screen and observe that the expected impact energy value on the screen returns to zero.

[0032] Pull up and stop: Pull up the hammer by hand and pay attention to the expected impact energy value on the screen until the expected impact energy reaches the required value. At this time, the hammer position should be kept as still as possible and the expected impact energy value displayed on the screen should be kept greater than the value required for the test before releasing it.

[0033] Release the impact: After confirming that there are no people or debris in the expected sweeping path of the impact hammer, release the heavy hammer and connecting rod; the hammer head may bounce back several times after contacting the surface of the test sample. Do not manually interfere with its movement before the hammer returns to a stationary state.

[0034] Data recording: Record the test impact energy and the state of the impact point of the tested sample on the data recording sheet. Take photos if necessary.

[0035] Disassembly and Storage: Turn off the power, unplug the cable connecting the sensor and display, and use tools to remove the weight and connecting rod in sequence. Place the removed parts and connecting bolts in the storage box. Perform the above disassembly work on a large enough table or floor, and wear safety shoes during disassembly.

[0036] In summary, the above-mentioned technical solution of the present invention allows impact testing to be performed by attaching an electromagnet to a vertical object under test. A gyroscope sensor monitors the hammer's impact energy, and a display shows the impact value. This allows for quick and easy on-site adjustment of the impact energy to accommodate different materials and testing requirements. The impact hammer can be used to test the surfaces of equipment housings of varying roughness and materials. Furthermore, it is portable and suitable for non-electrical equipment that cannot be transported to a laboratory for testing due to its bulk and weight, thus offering significant practical value.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An impact hammer for testing explosion-proof products, characterized in that: The invention comprises a bracket (1), wherein symmetrical electromagnets (5) are provided at both ends of the back of the bracket (1), a bearing is provided in the middle of the bracket (1), and the bearing is provided with a bearing seat (2), the bracket (1) is movably connected to one end of a connecting rod (3) through the bearing seat (2), and the other end of the connecting rod (3) is provided with a hammer body (4), and the hammer body (4) is provided with a replaceable hammer head (6) in the same direction as the electromagnet (5).

2. The impact hammer for explosion-proof product testing according to claim 1, characterized in that: The bearing is a high-speed ball bearing.

3. The impact hammer for explosion-proof product testing according to claim 1, characterized in that: The connecting rod (3) is a lightweight rocker.

4. The impact hammer for explosion-proof product testing according to claim 1, characterized in that: The connecting rod (3) and the hammer body (4) are fixedly connected via bolts.

5. The impact hammer for explosion-proof product testing according to any one of claims 1 to 4, characterized in that: A gyro sensor (9) is provided on the bearing seat (2), the gyro sensor (9) is communicatively connected to the display (7), the display (7) is integrated in a control button box (8), and the control button box (8) is electrically connected to the electromagnet (5).

6. The impact hammer for explosion-proof product testing according to claim 5, characterized in that: A signal processing PCB board is provided inside the display (7).

7. The impact hammer for explosion-proof product testing according to claim 5, characterized in that: The display (7) and the control button box (8) are both connected to a power source.

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