An impact testing machine for bellows joints

Abstract

The utility model discloses a corrugated pipe joint impact testing machine, including the bottom plate, the surface symmetry of bottom plate is fixedly connected with the linkage clamping structure, guarantees the stability of equipment whole through bottom plate, through clamping structure, guarantees multipoint clamping under the premise of not influencing impact test, and clamping is stable, and the scope of application is extensive, is applicable to a variety of specifications test corrugated pipe, through the cooperation of hinged seat and butt bolt and the rotation board, can adjust the inclination angle of rotation board, and effectively fix it, to adjust the impact angle of upper end impact structure, can realize multi -angle impact adaptation, simulate lateral oblique direction impact working condition, through the support plate fixed impact structure, through the effect of impact structure, replace the gravitational potential energy indirect transmission of traditional pendulum / hammer, adopt the impact head of electromagnetic pulse drive, produce electromagnetic repulsion through control current pulse, drive impact head to set speed vertical / oblique impact experimental corrugated pipe joint.

Description

Technical Field

[0001] This utility model relates to the field of pipe joint impact testing technology, specifically to a corrugated pipe joint impact testing machine. Background Technology

[0002] Corrugated pipe joints are key components in piping systems that connect corrugated pipes to pipes / equipment. They must withstand medium pressure, vibration, and external impact loads (such as installation collisions, earthquakes, and transient fluid impacts). Impact testing machines are core testing equipment used to simulate extreme impact conditions and verify the impact resistance of joints (such as whether they crack, loosen, or leak). Traditional equipment relies on gravitational potential energy to convert impact energy, but the energy is severely lost during transmission, resulting in data deviations and failure to reach the expected set values, leading to poor experimental results. Utility Model Content

[0003] The purpose of this invention is to provide a bellows joint impact testing machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a corrugated pipe joint impact testing machine, comprising a base plate, wherein a connecting clamping structure is symmetrically fixed to the surface of the base plate, a hinge seat is fixedly assembled on the rear side of the middle part of the surface of the base plate, the hinge seat is rotatably assembled with a rotating plate, and the hinge seat is connected to the rotating plate by butt bolts, a support plate is fixedly assembled on the upper end of the side wall of the rotating plate, and an impact structure is installed through the inner wall of the support plate.

[0005] Preferably, the clamping structure includes a concave plate, which is fixedly assembled to one side of the surface of the base plate. Nuts are symmetrically fixed to both ends of the outer side wall of the concave plate. A screw is screwed to the inner wall of each of the two nuts. The two screws pass through the concave plate. A clamping head is rotatably assembled to the inner end of each of the two screws. A first limiting rod is fixedly connected to the side wall of the clamping head near the screw. The first limiting rod passes through the concave plate.

[0006] Preferably, the impact structure includes a support cylinder, which is installed through the inner wall of the support plate. An electromagnet is fixedly installed on the inner wall of the support cylinder. A magnet is attracted to the lower end of the electromagnet. An impact head is fixedly installed at the lower end of the magnet. Two second limiting rods are symmetrically fixed to the surface of the impact head, and both second limiting rods penetrate the support plate.

[0007] Preferably, the lower surface of the base plate is symmetrically fixed with support legs on both sides.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the base plate ensures the overall stability of the equipment; the clamping structure ensures multi-point clamping and stable clamping without affecting the impact test; it has a wide range of applications and is suitable for various specifications of test bellows; the tilt angle of the rotating plate can be adjusted and effectively fixed by the cooperation of the hinge seat, the connecting bolts, and the rotating plate, thereby adjusting the impact angle of the upper impact structure, realizing multi-angle impact adaptation, simulating lateral, oblique, and other multi-directional impact conditions; the impact structure is fixed by the support plate, and the impact structure replaces the indirect transmission of gravitational potential energy of the traditional pendulum / falling hammer; the impact head driven by electromagnetic pulse generates electromagnetic repulsion by controlling the current pulse, driving the impact head to impact the test bellows joint vertically / obliquely at a set speed. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0010] Figure 2 This is a front view of the present invention;

[0011] Figure 3 This is a three-dimensional sectional view of the impact structure and support plate of this utility model;

[0012] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0013] In the diagram: 1-base plate, 2-clamping structure, 21-concave plate, 22-nut, 23-screw, 24-clamping head, 25-first limiting rod, 3-hinge seat, 4-butt bolt, 5-rotating plate, 6-support plate, 7-impact structure, 71-support cylinder, 72-electromagnet, 73-magnet, 74-impact head, 75-second limiting rod, 8-support leg. Detailed Implementation

[0014] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This utility model provides a corrugated pipe joint impact testing machine, including a base plate 1, a connecting clamping structure 2 symmetrically fixed to the surface of the base plate 1, a hinge seat 3 fixedly assembled on the rear side of the middle of the surface of the base plate 1, the hinge seat 3 being rotatably assembled with a rotating plate 5, and the hinge seat 3 being connected to the rotating plate 5 by a butt bolt 4, a support plate 6 fixedly assembled on the upper end of the side wall of the rotating plate 5, and an impact structure 7 being assembled through the inner wall of the support plate 6.

[0016] The base plate 1 ensures the overall stability of the equipment. The clamping structure 2 ensures multi-point clamping and stable clamping without affecting the impact test. It has a wide range of applications and is suitable for various specifications of test bellows. The hinge seat 3, the connecting bolt 4, and the rotating plate 5 can be used to adjust the tilt angle of the rotating plate 5 and fix it effectively, thereby adjusting the impact angle of the upper impact structure. It can realize multi-angle impact adaptation and simulate lateral, oblique and other multi-directional impact conditions. The impact structure 7 is fixed by the support plate 6. The impact structure 7 replaces the indirect transmission of gravitational potential energy of the traditional pendulum / falling hammer. The impact head is driven by electromagnetic pulse. The electromagnetic repulsion force is generated by controlling the current pulse, driving the impact head to impact the test bellows joint vertically / obliquely at a set speed.

[0017] The clamping structure 2 includes a concave plate 21, which is fixedly mounted on one side of the surface of the base plate 1. Nuts 22 are symmetrically fixed at both ends of the outer side wall of the concave plate 21. Screws 23 are screwed onto the inner walls of the two nuts 22. The two screws 23 pass through the concave plate 21. Clamping heads 24 are rotatably mounted on the inner ends of the two screws 23. A first limiting rod 25 is fixedly connected to the side wall of the clamping head 24 near the screw 23. The first limiting rod 25 passes through the concave plate 21.

[0018] When clamping structure 2 is needed, first rotate screw 23. Based on the screwing of screw 23 and nut 22, and the nut 22 being fixed on concave plate 21, the horizontal displacement of screw 23 can be adjusted to drive the horizontal displacement of clamping head 24, which is limited by first limiting rod 25. Adjust the clamping heads 24 on both sides to move closer until the corrugated pipe joint used in the experiment is limited, thus completing the clamping work.

[0019] The impact structure 7 includes a support cylinder 71, which is installed through the inner wall of the support plate 6. An electromagnet 72 is fixedly installed on the inner wall of the support cylinder 71. A magnet 73 is attracted to the lower end of the electromagnet 72. An impact head 74 is fixedly installed at the lower end of the magnet 73. Two second limiting rods 75 are symmetrically fixed to the surface of the impact head 74. Both second limiting rods 75 penetrate the support plate 6.

[0020] When the impact structure 7 is needed, first turn on the electromagnet 72 and adjust the magnetic poles of the electromagnet 72 so that it repels the magnet 73. This will instantly push the magnet 73 to move in the opposite direction. The magnet 73 will drive the impact head 74 to move toward the experimental bellows joint and effectively impact it. During the displacement, the movement trajectory is restricted by the second limit rod 75. The second limit rod 75 is made of a lightweight material, such as silicon carbide ceramic, to reduce the coefficient of friction and avoid affecting the impact effect.

[0021] Support legs 8 are symmetrically fixed to both sides of the lower surface of the base plate 1.

[0022] The support leg 8 can ensure the stability of the base plate 1.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bellows joint impact testing machine, characterized in that: Includes a base plate (1), on which a connecting clamping structure (2) is symmetrically fixedly connected, and a hinge seat (3) is fixedly assembled on the rear side of the middle part of the base plate (1). The hinge seat (3) is rotatably assembled with a rotating plate (5), and the hinge seat (3) is connected to the rotating plate (5) by a butt bolt (4). A support plate (6) is fixedly assembled on the upper side wall of the rotating plate (5), and an impact structure (7) is installed through the inner wall of the support plate (6).

2. The bellows joint impact testing machine according to claim 1, characterized in that: The clamping structure (2) includes a concave plate (21), which is fixedly assembled on one side of the surface of the base plate (1). Nuts (22) are symmetrically fixed at both ends of the outer side wall of the concave plate (21). A screw (23) is screwed onto the inner wall of each of the two nuts (22). The two screws (23) penetrate the concave plate (21). A clamping head (24) is rotatably assembled on the inner side of each of the two screws (23). A first limiting rod (25) is fixedly connected to the side wall of the clamping head (24) near the screw (23). The first limiting rod (25) penetrates the concave plate (21).

3. The bellows joint impact testing machine according to claim 1, characterized in that: The impact structure (7) includes a support cylinder (71), which is installed through the inner wall of the support plate (6). An electromagnet (72) is fixedly installed on the inner wall of the support cylinder (71). A magnet (73) is attracted to the lower end of the electromagnet (72). An impact head (74) is fixedly installed at the lower end of the magnet (73). Two second limiting rods (75) are symmetrically fixed to the surface of the impact head (74). Both second limiting rods (75) penetrate the support plate (6).

4. The bellows joint impact testing machine according to claim 1, characterized in that: The bottom surface of the base plate (1) is symmetrically fixed with legs (8) on both sides.

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