Drop hammer impact detection device

Abstract

The utility model provides a drop hammer impact detection device relates to detection device technical field, including base, base parallel fixed junction has two vertical setting guide pillar, the commonly vertical sliding installation of height adjustable positioning seat between two guide pillars, the impact seat is lifted along the vertical direction to the below of positioning seat, and the connecting structure is established between impact seat and positioning seat, and the region of base between two guide pillars is fixedly connected with product support seat. The utility model solves the problem that the precision of air spring shell detection is influenced due to the phenomenon that the detection error is big because the height of drop hammer impact needs to be adjusted and the free fall is carried out manually to the corresponding height in traditional technology because of the different shell types of air spring.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically to a drop hammer impact detection device. Background Technology

[0002] The drop hammer impact testing device for air spring housings is a test device specifically designed to evaluate the impact resistance of air spring housings. It simulates the instantaneous impact loads that the housing may suffer in actual use (such as the impact of gravel during vehicle operation, accidental bumps during assembly, etc.) to test whether it meets the design strength requirements and avoids air spring failure due to housing damage.

[0003] A prior art patent, CN110658056A, discloses a solution comprising a test bench assembly, a drop hammer impact assembly, a vibration signal measurement assembly, and a displacement signal measurement assembly. The test bench assembly includes a base, a sliding guide rod, a material support mechanism, and a photoelectric gate. The drop hammer impact assembly includes an impact plate, a force sensor, a hammer head, and a light-shielding plate. The vibration signal measurement assembly includes a first laser vibrometer and a second laser vibrometer. The displacement signal measurement assembly includes a first linear displacement sensor and a second linear displacement sensor. The first linear displacement sensor detects the displacement of the impact plate when the hammer head strikes the circular tube, and the second linear displacement sensor detects the displacement of a measuring point on the circular tube when the hammer head strikes the circular tube. This testing device obtains the impact deflection of the circular tube at various measuring points along the axial direction based on the displacement, and the data is provided at the moment of impact, making it highly accurate.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] First, due to the different types of air spring housings, it is necessary to adjust the height of the drop hammer impact. Since the existing height adjustment is done manually by raising the weight to the corresponding height and then letting it fall freely, it is easy to cause large detection errors, which affects the accuracy of air spring housing detection.

[0006] Second, the existing drop hammer impact testing process cannot simulate the impact of stones of different weights on the air spring housing, thus reducing the comprehensiveness of the air spring housing test.

[0007] As can be seen from the above, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a drop hammer impact testing device to solve the problem that in traditional technologies, due to the different types of air spring shells, the height of the drop hammer impact needs to be adjusted. Since the existing height adjustment is done manually by raising the hammer to the corresponding height and then allowing it to fall freely, it is prone to large detection errors, affecting the accuracy of air spring shell testing.

[0009] To achieve the above objectives, the present invention provides the following technical solution.

[0010] A drop hammer impact testing device includes a base, on which two vertically arranged guide pillars are fixedly connected in parallel. A height-adjustable positioning seat is slidably installed between the two guide pillars along the vertical direction. An impact seat is vertically raised and lowered below the positioning seat. A connecting structure is provided between the impact seat and the positioning seat. A product support seat is fixedly connected to the base in the area between the two guide pillars.

[0011] As an optimized solution, the connection structure includes an electromagnet body fixedly attached to the positioning seat, and a suction plate matching the electromagnet body is fixedly attached to the upper end of the impact seat.

[0012] As an optimized solution, a counterweight structure is also connected to the impact seat.

[0013] As an optimized solution, each of the guide posts is slidably fitted with a guide sleeve, and the impact seat includes an upper connecting seat and a lower connecting seat fixedly connected to the side walls of the two guide sleeves from top to bottom, respectively. A lower connecting plate is fixedly connected between the two lower connecting seats, and a punch is fixedly connected to the center of the lower connecting plate.

[0014] As an optimized solution, the counterweight structure includes two parallel vertical connecting columns connected to the upper surface of the lower connecting plate, and several counterweight blocks are fitted on the connecting columns.

[0015] As an optimized solution, the upper surface of the lower connecting plate is provided with a threaded groove, and the lower end of the connecting column is provided with a threaded section that matches the threaded groove.

[0016] As an optimized solution, an upper connecting plate is fixed between the two upper connecting seats, and the suction plate is fixed to the upper surface of the upper connecting plate.

[0017] As an optimized solution, each end of the positioning seat is fixedly connected to a sliding sleeve that is slidably fitted onto the guide post.

[0018] As an optimized solution, a positioning knob is threaded onto the side wall of the sliding sleeve, and the end of the positioning knob abuts against the guide post.

[0019] As an optimized solution, several positioning grooves are arranged side by side on the side wall of the guide post from top to bottom, and the end of the positioning knob abuts against the positioning groove.

[0020] As an optimized solution, the upper surface of the product support base is provided with a support groove arranged in a V-shape.

[0021] As an optimized solution, a top seat is fixedly connected between the upper ends of the two guide posts.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] The upper surface of the product support base is provided with a V-shaped support groove, which supports the air spring housing through the V-shaped opening.

[0024] By adjusting the height of the positioning seat, the starting height of the impact seat can be adjusted. After adjusting the positioning seat to the appropriate height, tighten the positioning knob so that its end abuts against the positioning groove, thereby fixing the height of the positioning seat and achieving precise control of the impact height. This overcomes the error caused by manually lifting the object to the corresponding height and then letting it fall freely in traditional technology.

[0025] The electromagnet body is set by a positioning seat, and a suction plate is fixed to the upper end of the impact seat. The electromagnet body is used to attract the suction plate to control the descent of the impact seat, thus overcoming the error caused by manual release and free fall in traditional technology.

[0026] By using the connecting post on the upper surface of the lower connecting plate, which is fitted with several counterweights, the counterweight can be adjusted by adding or subtracting the number of counterweights. This simulates the impact of stones of different weights on the air spring shell, improving the comprehensiveness of the air spring shell inspection. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] In the diagram: 1-Base; 2-Product support seat; 3-Air spring housing; 4-Guide post; 5-Top seat; 6-Positioning seat; 7-Lower connecting plate; 8-Punch; 9-Connecting post; 10-Counterweight; 11-Guide sleeve; 12-Upper connecting seat; 13-Lower connecting seat; 14-Upper connecting plate; 15-Actuating plate; 16-Electromagnet body; 17-Sliding sleeve; 18-Positioning knob; 19-Positioning groove. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] like Figure 1 As shown, the drop hammer impact testing device includes a base 1, on which two vertically arranged guide pillars 4 are fixedly connected in parallel. A height-adjustable positioning seat 6 is slidably installed between the two guide pillars 4 along the vertical direction. An impact seat is vertically raised and lowered below the positioning seat 6. A connecting structure is provided between the impact seat and the positioning seat 6. A product support seat 2 is fixedly connected to the base 1 in the area between the two guide pillars 4.

[0032] The connection structure includes an electromagnet body 16 fixedly attached to the positioning seat 6, and a suction plate 15 matching the electromagnet body 16 fixedly attached to the upper end of the impact seat.

[0033] The impact seat is also connected to a counterweight structure.

[0034] Each of the guide posts 4 is slidably fitted with a guide sleeve 11. The impact seat includes an upper connecting seat 12 and a lower connecting seat 13 fixedly connected from top to bottom to the side walls of the two guide sleeves 11. A lower connecting plate 7 is fixedly connected between the two lower connecting seats 13. A punch 8 is fixedly connected to the center of the lower connecting plate 7.

[0035] The counterweight structure includes two parallel vertical connecting columns 9 connected to the upper surface of the lower connecting plate 7, and several counterweight blocks 10 are fitted on the connecting columns 9.

[0036] The counterweight 10 has an opening in the center to fit onto the connecting post 9 and prevent it from falling off.

[0037] The upper surface of the lower connecting plate 7 is provided with a threaded groove, and the lower end of the connecting post 9 is provided with a threaded section that matches the threaded groove, so that the connecting post 9 can be disassembled.

[0038] An upper connecting plate 14 is fixed between the two upper connecting seats 12, and the suction plate 15 is fixed to the upper surface of the upper connecting plate 14.

[0039] The two ends of the positioning seat 6 are respectively fixed with sliding sleeves 17 that are slidably fitted onto the guide post 4.

[0040] A positioning knob 18 is threaded onto the side wall of the sliding sleeve 17, and the end of the positioning knob 18 abuts against the guide post 4.

[0041] The guide post 4 has several positioning grooves 19 arranged in parallel from top to bottom on its side wall, and the end of the positioning knob 18 abuts against the positioning grooves 19.

[0042] The upper surface of the product support base 2 is provided with a support groove arranged in a V shape.

[0043] A top seat 5 is fixedly connected between the upper ends of the two guide posts 4.

[0044] The working principle of the electromagnet body 16 and the suction plate 15 is common knowledge to those skilled in the art. Since it is not an innovation of this solution, it will not be elaborated here.

[0045] The working principle of this device is as follows:

[0046] The upper surface of the product support base 2 is provided with a V-shaped support groove, which supports the air spring housing 3 by means of the V-shaped opening;

[0047] By adjusting the height of the positioning seat 6, the starting height of the impact seat can be adjusted. After adjusting the positioning seat 6 to the appropriate height, tighten the positioning knob 18 so that its end abuts against the positioning groove 19, thereby fixing the height of the positioning seat 6 and achieving precise control of the impact height. This overcomes the error caused by manually lifting the object to the corresponding height and then letting it fall freely in traditional technology.

[0048] The electromagnet body 16 is set by the positioning seat 6, and the upper end of the impact seat is fixed with the suction plate 15, so that the electromagnet body 16 can attract the suction plate 15 to control the descent of the impact seat and overcome the error caused by manual release and free fall in traditional technology.

[0049] By using the connecting post 9 on the upper surface of the lower connecting plate 7, and by mounting several counterweights 10 on the connecting post 9, the counterweight can be adjusted by adding or subtracting the number of counterweights 10, thus simulating the impact of stones of different weights on the air spring housing 3 and improving the comprehensiveness of the detection of the air spring housing 3.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A falling hammer impact testing device, characterized in that: Includes a base (1), on which two vertically arranged guide pillars (4) are fixedly connected side by side. A height-adjustable positioning seat (6) is slidably installed between the two guide pillars (4) along the vertical direction. An impact seat is vertically raised and lowered below the positioning seat (6). A connecting structure is provided between the impact seat and the positioning seat (6). A product support seat (2) is fixedly connected to the area between the two guide pillars (4) on the base (1). The connection structure includes an electromagnet body (16) fixed to the positioning seat (6), and an attractive plate (15) matching the electromagnet body (16) is fixed to the upper end of the impact seat. The impact seat is also connected to a counterweight structure. Each of the guide posts (4) is slidably fitted with a guide sleeve (11). The impact seat includes an upper connecting seat (12) and a lower connecting seat (13) fixedly connected from top to bottom to the side walls of the two guide sleeves (11). A lower connecting plate (7) is fixedly connected between the two lower connecting seats (13). A punch (8) is fixedly connected at the center of the lower connecting plate (7). The counterweight structure includes two parallel vertical connecting columns (9) connected to the upper surface of the lower connecting plate (7), and several counterweight blocks (10) are fitted on the connecting columns (9).

2. The falling hammer impact testing device according to claim 1, characterized in that: The upper surface of the lower connecting plate (7) is provided with a threaded groove, and the lower end of the connecting column (9) is provided with a threaded section that matches the threaded groove.

3. The falling hammer impact detection device according to claim 1, characterized in that: An upper connecting plate (14) is fixed between the two upper connecting seats (12), and the suction plate (15) is fixed to the upper surface of the upper connecting plate (14).

4. The falling hammer impact testing device according to claim 1, characterized in that: The two ends of the positioning seat (6) are respectively fixed with sliding sleeves (17) that are slidably fitted onto the guide post (4).

5. The falling hammer impact detection device according to claim 4, characterized in that: The sliding sleeve (17) has a threaded connection to a positioning knob (18) on its side wall, and the end of the positioning knob (18) abuts against the guide post (4); the guide post (4) has several positioning grooves (19) arranged in parallel from top to bottom on its side wall, and the end of the positioning knob (18) abuts against the positioning grooves (19).

6. The falling hammer impact detection device according to claim 1, characterized in that: The upper surface of the product support base (2) is provided with a support groove in a V-shape.

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