A high frequency vibration control mechanism

Abstract

The present invention discloses a high-frequency vibration control mechanism, comprising a support, wherein a pulley is arranged inside the support, a rotating rod is connected to both sides of the pulley, and a rotating intake and exhaust distribution wheel is fixedly connected to the tail end of the rotating rod, the rotating rod is located between the rotating intake and exhaust distribution wheel and the pulley and is provided with a fixed intake and exhaust distribution wheel, the fixed intake and exhaust distribution wheel is fixedly installed on the support, and the rotating intake and exhaust distribution wheel and the fixed intake and exhaust distribution wheel are sealingly and abuttingly connected. The present invention arranges a fixed intake and exhaust distribution wheel, installs the rotating intake and exhaust distribution wheel on both sides of the pulley, and seals and abuts against the fixed intake and exhaust distribution wheel. The rotating intake and exhaust distribution wheel is rotated so that the exhaust hole of the rotating intake and exhaust distribution wheel matches and is connected with the air inlet of the fixed intake and exhaust distribution wheel, so that the rotation is uniform, thereby completing regular intake and exhaust, and realizing high-speed and high-frequency intake and exhaust with high precision and high efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of impact test equipment, in particular to a high-frequency vibration control mechanism. Background Art

[0002] Impact testing is generally a test method to determine the safety, reliability and effectiveness of military and civilian equipment when subjected to external impact or action. The impact test bench is mainly used for mechanical environmental testing of products. It can simulate actual impact pulses and impact energy, and simulate non-repetitive impacts that products are expected to suffer during use, loading and unloading, and transportation, so as to determine the product's adaptability to various impact environments.

[0003] At present, most impact test equipment is implemented by free-fall impact testers, which are driven by gravity (some are equipped with auxiliary force devices). However, for impact tests of some specimens, horizontal impact must be used. Among them, the high-frequency vibration control mechanism that generates impact force plays a major role. The current horizontal impact test bench uses the deformation energy of the elastic rope as the power to generate the required initial impact velocity. Because it relies on the deformation energy of the elastic rope to accumulate energy, it requires a longer acceleration process, resulting in a longer slide. As the number of uses increases, the elastic rope gradually wears out, and its elastic coefficient decreases accordingly. When it reaches a certain level, it needs to be replaced. The use and maintenance costs are high, and this high-frequency vibration control mechanism that uses the elastic rope as the main body cannot perform precise and regular movements, resulting in low detection accuracy. For this reason, we propose a high-frequency vibration control mechanism. Summary of the invention

[0004] The purpose of the present invention is to provide a high-frequency vibration control mechanism to solve the problem that in the above-mentioned background technology, horizontal impact must be used in the impact test of certain test pieces, in which the high-frequency vibration control mechanism plays a major role as a generator of impact force. The current horizontal impact test bench uses the deformation energy of the elastic rope as the power to generate the required initial impact velocity. Because the deformation energy of the elastic rope is relied on to accumulate energy, a longer acceleration process is required, resulting in a longer slideway. As the number of uses increases, the elastic rope gradually wears out, and its elastic coefficient decreases accordingly. When it reaches a certain level, it needs to be replaced, and the use and maintenance costs are high. In addition, the high-frequency vibration control mechanism using the elastic rope as the main body cannot perform precise and regular movements, resulting in low detection accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-frequency vibration control mechanism, including a support, a pulley is arranged inside the support, a rotating rod is connected to both sides of the pulley, and a rotating intake and exhaust distribution wheel is fixedly connected to the tail end of the rotating rod, the rotating rod is provided with a fixed intake and exhaust distribution wheel between the rotating intake and exhaust distribution wheel and the pulley, the fixed intake and exhaust distribution wheel is fixedly installed on the support, the rotating intake and exhaust distribution wheel and the fixed intake and exhaust distribution wheel are sealingly and abuttingly connected, the fixed intake and exhaust distribution wheel is provided with an air inlet of the fixed intake and exhaust distribution wheel and an exhaust outlet of the fixed intake and exhaust distribution wheel, and the air inlet of the fixed intake and exhaust distribution wheel and the fixed intake and exhaust distribution wheel are There are four groups of distribution wheel exhaust ports, the fixed inlet and exhaust distribution wheel air inlet and the fixed inlet and exhaust distribution wheel exhaust ports are arranged at intervals, the rotating inlet and exhaust distribution wheel is provided with a rotating inlet and exhaust distribution wheel inlet and exhaust ports, and four groups of rotating inlet and exhaust distribution wheel inlet and exhaust ports are equidistantly arranged, one side of the rotating inlet and exhaust distribution wheel is provided with a pressure ring, and one side of the pressure ring is connected to the pressure ring to control the air inlet, the rotating inlet and exhaust distribution wheel inlet and exhaust ports are rotatably matched and connected with the fixed inlet and exhaust distribution wheel inlet ports, the pressure ring controlled air inlet is connected with the left cylinder chamber and the right cylinder chamber inlet and exhaust ports, and the rotating inlet and exhaust distribution wheel inlet and exhaust ports are matched with the fixed inlet and exhaust distribution wheel exhaust ports after rotating 45°.

[0006] Preferably, an air inlet hole is provided on one side of the support, and an air outlet hole is provided on the other side of the support, and a gas passage is provided inside the support.

[0007] Preferably, after the inlet and outlet ports of the rotating inlet and outlet distribution wheel are connected with the exhaust ports of the fixed inlet and outlet distribution wheel, the gas is discharged through the exhaust hole.

[0008] Preferably, the pulley is connected to a transmission pulley via a belt, and the transmission pulley is connected to a driving wheel connected to an output shaft of an external driving motor via a belt.

[0009] Preferably, the pressure ring controlled air inlet is arranged on the support, and the gas enters the air inlet and exhaust ports of the left cylinder chamber and the right cylinder chamber through the pressure ring controlled air inlet, the gas channel and the air inlet hole.

[0010] Preferably, the rotating rod passes through and fixes the intake and exhaust distribution wheel.

[0011] The present invention provides a high-frequency vibration control mechanism, which has the following beneficial effects:

[0012] The present invention fixes a fixed intake and exhaust distribution wheel on a support, and installs a rotating intake and exhaust distribution wheel on both sides of a pulley, 4 groups of intake and exhaust holes are evenly distributed on the rotating intake and exhaust distribution wheel, 4 groups of intake holes and 4 groups of exhaust holes are evenly distributed on the fixed intake and exhaust distribution wheel, and the fixed intake and exhaust distribution wheel is sealingly and abuttingly connected with the rotating intake and exhaust distribution wheel. When in use, the rotating intake and exhaust distribution wheel is rotated so that the exhaust holes of the rotating intake and exhaust distribution wheel are matched and connected with the air inlet of the fixed intake and exhaust distribution wheel. At this time, the gas enters the left and right cylinders through the pressure ring to control the air inlet, the gas channel and the air inlet, thereby driving the test bench to move horizontally, the rotating intake and exhaust distribution wheel rotates 45°, and the gas is discharged through the exhaust holes. This high-frequency vibration control mechanism drives the rotating intake and exhaust distribution wheel to rotate at a uniform speed through the pulley, thereby completing regular intake and exhaust, and can achieve high-speed and high-frequency intake and exhaust with high precision and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the structure of the rotary intake and exhaust distribution wheel of the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the fixed intake and exhaust distribution wheel of the present invention.

[0016] In the figure: 1. Left cylinder chamber; 2. Pressure ring controlling air inlet; 3. Support; 4. Air inlet; 5. Pulley; 6. Rotating inlet and exhaust distribution wheel; 7. Pressure ring; 8. Inlet and exhaust port of right cylinder chamber; 9. Inlet and exhaust port of rotating inlet and exhaust distribution wheel; 10. Exhaust port; 11. Fixed inlet and exhaust distribution wheel; 12. Fixed inlet and exhaust distribution wheel inlet; 13. Fixed inlet and exhaust distribution wheel exhaust port. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] like Figure 1-3As shown, the present invention provides a technical solution: a high-frequency vibration control mechanism, including a support 3, a pulley 5 is arranged inside the support 3, a rotating rod is connected to both sides of the pulley 5, and a rotating intake and exhaust distribution wheel 6 is fixedly connected to the tail end of the rotating rod, the rotating rod is located between the rotating intake and exhaust distribution wheel 6 and the pulley 5 and is provided with a fixed intake and exhaust distribution wheel 11, the fixed intake and exhaust distribution wheel 11 is fixedly installed on the support 3, the rotating intake and exhaust distribution wheel 6 and the fixed intake and exhaust distribution wheel 11 are sealed and abutted, the fixed intake and exhaust distribution wheel 11 is provided with a fixed intake and exhaust distribution wheel air inlet 12 and a fixed intake and exhaust distribution wheel exhaust port 13, and the fixed intake and exhaust distribution wheel air inlet 12 and the fixed intake and exhaust distribution wheel air inlet 13 are fixedly installed on the support 3, the rotating intake and exhaust distribution wheel 6 and the fixed intake and exhaust distribution wheel air inlet 13 are fixedly installed on the fixed intake and exhaust distribution wheel 11, and the fixed intake and exhaust distribution wheel air inlet 12 and the fixed intake and exhaust distribution wheel air inlet 13 are fixedly installed on the support 3, the rotating intake and exhaust distribution wheel 6 ... The exhaust ports 13 are each provided with four groups, the fixed inlet and exhaust distribution wheel inlet port 12 and the fixed inlet and exhaust distribution wheel exhaust port 13 are arranged at intervals, the rotating inlet and exhaust distribution wheel 6 is provided with a rotating inlet and exhaust distribution wheel inlet and exhaust port 9, and the rotating inlet and exhaust distribution wheel inlet and exhaust port 9 is provided with four groups of equidistantly arranged ones, a pressure ring 7 is provided on one side of the rotating inlet and exhaust distribution wheel 6, and one side of the pressure ring 7 is connected to the pressure ring control inlet port 2, the rotating inlet and exhaust distribution wheel inlet and exhaust port 9 is rotationally matched and connected with the fixed inlet and exhaust distribution wheel inlet port 12, the pressure ring control inlet port 2 is connected with the left cylinder chamber 1 and the right cylinder chamber inlet and exhaust ports 8, and the rotating inlet and exhaust distribution wheel inlet and exhaust port 9 is matched with the fixed inlet and exhaust distribution wheel exhaust port 13 after rotating 45°.

[0019] An air inlet 4 is provided on one side of the support 3, and an exhaust hole 10 is provided on the other side of the support 3. A gas channel is provided inside the support 3, and the gas entering from the outside is transported through the gas channel; after the inlet and exhaust port 9 of the rotating inlet and exhaust distribution wheel is connected with the exhaust port 13 of the fixed inlet and exhaust distribution wheel, the gas is discharged through the exhaust hole 10, which is convenient for discharging the gas and can be exhausted regularly; the pulley 5 is connected to the transmission pulley through a belt, and the transmission pulley is connected to the driving wheel connected to the output shaft of the external driving motor through a belt, and the motor is used to drive the pulley 5 to rotate so that the rotation speed is uniform; the pressure ring control air inlet 2 is arranged on the support 3, and the gas enters the left cylinder chamber 1 and the right cylinder chamber air inlet and exhaust port 8 through the pressure ring control air inlet 2, the gas channel and the air inlet hole 4, which is convenient for transporting the gas to the air chambers of the left and right cylinders; the rotating rod passes through the fixed inlet and exhaust distribution wheel 11 to ensure that the fixed inlet and exhaust distribution wheel 11 and the rotating inlet and exhaust distribution wheel 6 are sealed and contacted.

[0020] It should be noted that a high-frequency vibration control mechanism, when working, has a fixed intake and exhaust distribution wheel 11 fixedly installed on the support 3, and the two sides of the pulley 5 inside the support 3 are connected to the rotating intake and exhaust distribution wheel 6 through a rotating rod, and 4 groups of fixed intake and exhaust distribution wheel air inlets 12 and fixed intake and exhaust distribution wheel exhaust ports 13 are respectively arranged on the fixed intake and exhaust distribution wheel 11, and 4 groups of rotating intake and exhaust distribution wheel air inlet and exhaust ports 9 are evenly arranged on the rotating intake and exhaust distribution wheel 6. When in use, the pulley 5 rotates, driving the rotating intake and exhaust distribution wheel 6 at both ends of the rotating rod to rotate, so that the 4 groups of rotating intake and exhaust distribution wheel air inlet and exhaust ports 9 on the rotating intake and exhaust distribution wheel 6 are matched and connected with the 4 groups of fixed intake and exhaust distribution wheel air inlet ports 12 on the fixed intake and exhaust distribution wheel 11. At this time, the pressure ring control air inlet 2 on the support 3 is connected with the pressure ring 7, and the gas inlet hole 4 and the air inlet hole 4 controlled by the pressure ring are connected to the pressure ring 7. The air intake 2 then enters the gas channel of the support 3 from the rotating air intake and exhaust distribution wheel air intake 9 and the fixed air intake and exhaust distribution wheel air intake 12, and then enters the left cylinder chamber 1 and the right cylinder chamber air intake 8. After the gas enters the left cylinder chamber 1 and the right cylinder chamber, it pushes the pistons in the left and right cylinders to move horizontally, thereby driving the test bench to move horizontally. After the rotating air intake and exhaust distribution wheel 6 reaches 45°, the rotating air intake and exhaust distribution wheel air intake and exhaust port 9 is connected to the fixed air intake and exhaust distribution wheel exhaust port 13. At this time, the gases are interconnected and transported to the exhaust hole 10 through the rotating air intake and exhaust distribution wheel air intake and exhaust port 9 and the fixed air intake and exhaust distribution wheel exhaust port 13 for discharge. This high-frequency vibration control mechanism is driven to rotate by the pulley 5, so that the rotating air intake and exhaust distribution wheel 6 rotates at a uniform speed, thereby completing regular air intake and exhaust, and can achieve high-speed and high-frequency air intake and exhaust with high precision and high efficiency.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency vibration control mechanism, comprising a support (3), characterized in that: A pulley (5) is arranged inside the support (3), and a rotating rod is connected to both sides of the pulley (5), and the tail end of the rotating rod is fixedly connected to a rotating intake and exhaust distribution wheel (6), and the rotating rod is provided with a fixed intake and exhaust distribution wheel (11) between the rotating intake and exhaust distribution wheel (6) and the pulley (5), and the fixed intake and exhaust distribution wheel (11) is fixedly mounted on the support (3), and the rotating intake and exhaust distribution wheel (6) and the fixed intake and exhaust distribution wheel (11) are sealed and abutted against each other, and the fixed intake and exhaust distribution wheel (11) is provided with a fixed intake and exhaust distribution wheel air inlet (12) and a fixed intake and exhaust distribution wheel exhaust port (13), and the fixed intake and exhaust distribution wheel air inlet (12) and the fixed intake and exhaust distribution wheel exhaust port (13) are each provided with four groups, and the fixed intake and exhaust distribution wheel air inlet (12) and the fixed intake and exhaust distribution wheel exhaust port (13) are arranged at intervals, and the rotating A rotating inlet and exhaust distribution wheel (6) is provided with an inlet and exhaust port (9) of the rotating inlet and exhaust distribution wheel, and four groups of inlet and exhaust ports (9) of the rotating inlet and exhaust distribution wheel are arranged at equal distances. A pressure ring (7) is arranged on one side of the rotating inlet and exhaust distribution wheel (6), and one side of the pressure ring (7) is connected to the pressure ring control inlet port (2). The inlet and exhaust port (9) of the rotating inlet and exhaust distribution wheel is connected to the inlet port (12) of the fixed inlet and exhaust distribution wheel by rotational matching. The pressure ring control inlet port (2) is connected to the inlet and exhaust ports (8) of the left cylinder chamber (1) and the right cylinder chamber. The inlet and exhaust port (9) of the rotating inlet and exhaust distribution wheel is matched with the exhaust port (13) of the fixed inlet and exhaust distribution wheel after rotating 45 degrees. An inlet hole (4) is arranged on one side of the support (3), and an exhaust hole (10) is arranged on the other side of the support (3). A gas channel is arranged in the support (3). The rotating rod passes through the fixed inlet and exhaust distribution wheel (11).

2. A high frequency vibration control mechanism according to claim 1, characterized in that: After the inlet and outlet ports (9) of the rotating inlet and outlet distribution wheel are connected to the exhaust ports (13) of the fixed inlet and outlet distribution wheel, the gas is discharged through the exhaust hole (10).

3. A high frequency vibration control mechanism according to claim 1, characterized in that: The pulley (5) is connected to a transmission pulley via a belt, and the transmission pulley is connected to a driving wheel connected to an output shaft of an external driving motor via a belt.

4. A high frequency vibration control mechanism according to claim 1, characterized in that: The pressure ring controlled air inlet (2) is arranged on the support (3), and the gas enters the left cylinder chamber (1) and the right cylinder chamber air inlet and outlet (8) through the pressure ring controlled air inlet (2), the gas channel and the air inlet hole (4).

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