CN212272923U - Vibration reduction structure - Google Patents

Abstract

The utility model provides a damping structure belongs to construction operation equipment technical field, including the cylinder and can telescopic motion's piston rod in the cylinder, the piston rod stretches into the one end of cylinder with closed space between the cylinder is formed with the appearance chamber, the other end of piston rod is used for being connected with the vibrating piece, the cylinder be used for with mounting fixed connection. Through tensile or compressed gas of piston rod concertina movement, turn into gaseous heat with the vibration energy of vibrating part and give off, the kinetic energy of vibration gives off through gaseous heat and is consumed totally, can effectively cushion vibrations effects such as vibrations, noise that the vibration of vibrating part caused the mounting, realize the damping.

Description

Vibration reduction structure

Technical Field

The utility model relates to a construction operation equipment technical field particularly, relates to a damping structure.

Background

Generally, when a work is performed on a building, the work is suspended from the building to facilitate the work, and the work suspended from the building is called a suspension device (corresponding to a vibration member).

The suspension device can vibrate during operation, and the vibration of the suspension device can be transmitted to an upper building (corresponding to a fixing part), so that vibration, noise and other adverse associated effects are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a damping structure can effectively cushion the vibrations of vibrating part to the mounting.

The embodiment of the utility model is realized like this:

an embodiment of the utility model provides a damping structure, it includes the cylinder and can telescopic motion's piston rod in the cylinder, the piston rod stretches into the one end of cylinder with closed space between the cylinder is formed with the appearance chamber, the other end of piston rod is used for being connected with the vibrating part, the cylinder be used for with mounting fixed connection.

Optionally, the cavity is filled with oil, and the oil is disposed between the piston rod and the cylinder in the cavity.

Optionally, a pressure gauge is arranged on the outer wall of the cylinder barrel, and a detection end of the pressure gauge extends into the accommodating cavity.

Optionally, an oil valve is arranged on the outer wall of the cylinder barrel, the oil valve is communicated with the containing cavity, and the engine oil is injected into or discharged from the containing cavity through the oil valve.

Optionally, an end of the piston rod is connected to the vibrating member by a damper spring.

Optionally, the cylinder barrel is connected with the fixing piece through the mounting plate.

Optionally, the cylinder barrel and the piston rod form a vibration damping assembly, a plurality of vibration damping assemblies are arranged between the fixing member and the vibrating member, and the cylinder barrels of the plurality of vibration damping assemblies are connected with the fixing member through the mounting plate.

Optionally, still including establishing the mounting with the insurance subassembly between the vibrating piece, the insurance subassembly include with the first sleeve pipe that the mounting panel is connected and with the second sleeve pipe that the vibrating piece is connected, first sleeve pipe with cylinder barrel parallel arrangement, the second sleeve pipe is established the first sleeve pipe is intraductal and through round pin hub connection.

Optionally, the pin shaft includes a first pin shaft and a second pin shaft, the first pin shaft is made of steel, the second pin shaft is made of rubber, and the first pin shaft is located at one end close to the vibrating member.

Optionally, the mounting plate is fixed to the fixing member by a bolt.

The utility model discloses beneficial effect includes:

the embodiment of the utility model provides a damping structure, including cylinder and the piston rod that can be in the cylinder concertina movement, the cylinder is used for connecting with the mounting, the closed space between the one end that the piston rod stretches into the cylinder and the cylinder is formed with the appearance chamber, there is gas in the appearance chamber, the other end that holds the chamber piston rod is used for being connected with the vibrating part, when the vibrating part takes place the vibration, vibration transmission is to the piston rod, drive piston rod concertina movement in the cylinder, the piston rod is tensile or compress and is held the gas in the chamber and do work, gas is tensile or the in-process of compression, gaseous volume changes, gas produces the heat, the heat distributes along the cylinder with the form of heat energy again, so, just stretch through piston rod concertina movement or compressed gas do work, turn into gaseous heat with the vibration energy of vibrating part, the kinetic energy of vibration is distributed through gaseous heat and is consumed completely, weaken, the vibration damping device can effectively buffer vibration effects such as vibration, noise and the like caused by vibration of the vibrating piece to the fixing piece, and vibration damping is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a vibration damping structure provided in an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a vibration damping structure provided by an embodiment of the present invention.

Icon: 110-a cylinder barrel; 120-a piston rod; 131-an oil valve; 132-a damper spring; 133-bolt; 134-a mounting plate; 141-a first sleeve; 142-a second sleeve; 143-a second pin; 144-a first pin; 200-a fixture; 300-a vibrating member; q-gas; y-machine oil.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The suspension device is hung on a building for operation, the suspension device can generate vibration during operation, the vibration of the suspension device can be transmitted to an upper building to cause adverse effects such as vibration, noise and the like, and the adverse effects can be called as vibration effect.

In order to damp the vibration effect of the vibration of the suspension device on the upper building, the present embodiment proposes a damping device for damping the vibration effect using the volume change of the air in the cylinder 110.

Of course, the embodiment can be applied to other structures with high earthquake resistance requirements and installation of high-precision equipment besides buffering the vibration effect of the suspension equipment on the building. When applied to other scenes, the construction can be equivalent to the fixed member 200 with reference to the arrangement relationship of the suspension device and the building, the suspension device can be equivalent to the vibrating member 300, the vibration damping structure is arranged between the fixed member 200 and the vibrating member 300, one end of the vibration damping structure is connected with the fixed member 200, and the other end of the vibration damping structure is connected with the vibrating member 300, so that the vibration effect of the vibrating member 300 on the fixed member 200 can be buffered.

In addition, according to specific situations, a plurality of groups of damping structures of the embodiment can be arranged between the fixed member 200 and the vibrating member 300 to improve the damping effect in multiples.

Specifically, referring to fig. 1, the present embodiment provides a vibration damping structure, which includes a cylinder 110 and a piston rod 120 capable of extending and contracting within the cylinder 110, wherein a closed space between one end of the piston rod 120 extending into the cylinder 110 and the cylinder 110 forms a cavity, the other end of the piston rod 120 is used for connecting with a vibrating element 300, and the cylinder 110 is used for fixedly connecting with a fixing element 200.

The cylinder 110 may be connected to the fixing member 200 through a mounting plate 134, the cylinder 110 may be fixed to the mounting plate 134, and the mounting plate 134 may be fixed to the fixing member 200 through a bolt 133 to fix the cylinder 110.

In order to ensure the stability of the connection between the cylinder 110 and the fixing member 200, the mounting plate 134 may be a galvanized steel plate, which has high strength, and is corrosion-resistant by galvanizing, and has a long service life.

In addition, bolt 133 may be treated, for example, by chemical treatment to increase the strength and hardness of bolt 133, such as quenching, surface chrome plating, and the like.

The piston rod 120 comprises a head portion and a rod portion connected with the head portion, a T-shaped piston rod 120 structure is formed, the piston rod 120 can stretch and retract in the cylinder tube 110, wherein the end, extending into the cylinder tube 110, of the piston rod 120 is the head portion, and a cavity is formed in a closed space between the head portion and the cylinder tube 110.

The two ends of the head are abutted against the inner wall of the cylinder barrel 110, so that the head can move telescopically along the inner wall of the cylinder barrel 110, and meanwhile, a cavity is formed between the head and the cylinder barrel 110 and is a closed cavity. One end of the rod portion is connected to the head portion, the other end of the rod portion (the other end of the piston rod 120) extends out of the cylinder 110 for connection with the vibrating member 300, and the width of the rod portion is smaller than the inner diameter of the cylinder 110, so that both sides of the rod portion do not contact the inner wall of the cylinder 110. When the head portion extends and retracts along the inner wall of the cylinder 110, the rod portion is also driven to synchronously extend and retract in the cylinder 110. The head and shaft are formed integrally as a piston rod 120.

The piston rod 120 and the cylinder barrel 110 can be made of metal materials with good hardness, for example, steel is adopted, so that the strength of the piston rod 120 and the cylinder barrel 110 can be improved, the vibration damping structure can bear large vibration, and the service life is prolonged.

The cavity is provided with the gas Q, and the cavity is a closed space, so that the gas Q can be prevented from leaking.

The gas Q may be nitrogen. The nitrogen has lower density than air, and the chemical property of the nitrogen is inactive, and the nitrogen is difficult to react with other substances at normal temperature, so the nitrogen is safer to use.

It should be noted that, in a natural state, the cavity is inevitably filled with the gas Q. However, in order to increase the content of the gas Q in the cavity, the cavity may be filled with the gas Q as needed. The chamber may be filled particularly when the gas Q in the chamber is a pure gas, such as pure nitrogen.

When vibrating piece 300 vibrates, the vibration transmits piston rod 120, piston rod 120 is the motion of stretching out in cylinder 110, piston rod 120 specifically is stretching into or the withdrawal in cylinder 110, or the size of stretching into volume and withdrawal volume all is according to the size of vibration, the direction etc. decides, the gas Q that vibration drive piston rod 120 stretched or compressed in the appearance chamber does work, gas Q is stretched or the compression produces the heat, along cylinder 110 with the form of heat energy gived off, so, just, turn into the energy of vibration into gas Q's heat through piston rod 120, the kinetic energy of vibration is consumed almost through gas Q's heat giveoff, realize the damping.

In addition, the end of the piston rod 120 connected to the vibration member 300 may be connected to the vibration member 300 by a damper spring 132.

Illustratively, as shown in fig. 2, the rod portion of the piston rod 120 may be divided into an upper end and a lower end, the lower end is fixedly connected to the vibrating member 300 by the bolt 133, the upper end extends into the cylinder 110 and is connected to the head portion, the damping spring 132 is connected between the upper end and the lower end, the vibration of the vibrating member 300 is transmitted to the lower end of the piston rod 120 and then to the damping spring 132, and the damping spring 132 eliminates a portion of the vibration.

The vibration damping effect can be further ensured by providing the vibration damping spring 132 at the connecting portion between the piston rod 120 and the vibrating member 300.

Further, a plurality of vibration damping structures of the present embodiment may be provided between the fixing member 200 and the vibrating member 300, so that the vibration damping effect may be increased by several times.

Specifically, the cylinder 110 and the piston rod 120 form a vibration damping assembly, a plurality of vibration damping assemblies are disposed between the fixing member 200 and the vibrating member 300, and the cylinders 110 of the plurality of vibration damping assemblies are connected to the fixing member 200 through the mounting plate 134.

In this way, a plurality of vibration damping modules may be provided on one mounting plate 134, or as shown in fig. 1, a vibration damping structure may be formed for one mounting plate 134, and a plurality of vibration damping structures may be provided between the fixing member 200 and the vibrating member 300.

As shown in fig. 2, the vibration member 300 is taken as a suspension device, and the fixing member 200 is taken as an example of a building (e.g., a building beam slab), when the vibration damping structure provided by this embodiment works, the lower suspension device vibrates during operation, the piston rod 120 is connected with the suspension device, the vibration is transmitted to the piston rod 120, the piston rod 120 is driven to extend and retract in the cylinder 110, and the cylinder 110 also contains gas Q. When the vibration is transmitted to the piston rod 120, the piston rod 120 extends into the cylinder 110 or extends out of the cylinder 110 depending on the magnitude or direction of the vibration, etc. When the piston rod 120 extends into the cylinder barrel 110, the piston rod 120 compresses the gas Q in the cylinder barrel 110, so that the volume of the gas Q is reduced, the gas Q generates heat after the volume is changed, the heat is dissipated through the cylinder barrel 110 to consume the energy of vibration, the vibration generated by the suspension equipment is partially consumed, the vibration transmitted to a building is greatly weakened, and the vibration reduction is realized. When the piston rod 120 extends out of the cylinder 110, the piston rod 120 stretches the gas Q in the cylinder 110, so that the volume of the gas Q is increased, the volume of the gas Q is changed to generate heat, the cylinder 110 dissipates the heat to consume the energy of vibration, the vibration of the suspension equipment is partially consumed, the vibration transmitted to a building is weakened, and vibration reduction is achieved.

The embodiment of the utility model provides a damping structure, cylinder 110 is used for being connected with mounting 200, piston rod 120 can be in telescopic motion in cylinder 110, the closed space that piston rod 120 stretches into between one end of cylinder 110 and the cylinder 110 is formed with the appearance chamber, there is gaseous Q in the appearance chamber, the other end that holds chamber piston rod 120 is used for being connected with vibrating part 300, when vibrating part 300 takes place the vibration, vibration transmission is for piston rod 120, drive piston rod 120 telescopic motion in cylinder 110, piston rod 120 is tensile or compress and is held gaseous Q in the chamber and do work, gaseous Q is tensile or the in-process of compressing, gaseous Q's volume changes, gaseous Q produces heat, the heat distributes along cylinder 110 with the form of heat energy again, so, just stretch or compress gaseous Q through piston rod 120 telescopic motion and do work, turn into gaseous Q's heat with the vibration energy of vibrating part 300, the kinetic energy of vibration is dissipated almost through gaseous Q's heat, the vibration transmitted to the fixing member 200 is weakened, vibration effects of vibration, noise and the like of the fixing member 200 caused by the vibration of the vibrating member 300 can be effectively buffered, and vibration reduction is realized.

In order to ensure that the gas Q in the chamber does not leak, the chamber is filled with the engine oil Y, and the engine oil Y is disposed between the piston rod 120 and the cylinder 110 in the chamber.

The weight of the engine oil Y is greater than that of the gas Q, the engine oil Y falls on the lower portion of the containing cavity under the action of gravity, the engine oil Y is in contact with the head of the piston rod 120, and the air is located on the upper portion of the containing cavity.

The engine oil Y can prevent the gas Q in the chamber from leaking, achieving a natural sealing effect, and simultaneously can lubricate the head of the piston rod 120 at any time, so that the piston rod 120 can smoothly extend and contract in the cylinder 110, thereby maintaining the vibration damping effect of the piston rod 120.

Specifically, in the process that the piston rod 120 extends into the cylinder 110, the piston rod 120 compresses the gas Q in the cylinder 110, and meanwhile, the piston rod 120 also pushes the oil Y in the cylinder 110, and in the process that the gas Q is compressed, because the oil Y is located at the lower part of the gas Q, the oil Y fills up between the end of the piston rod 120 and the inner wall of the cylinder 110, the gas Q cannot escape from the cylinder 110, the gas Q is prevented from leaking, the amount of the gas Q in the cylinder 110 is reduced, and after the gas Q is prevented from being reduced, the heat generated by the volume change of the gas Q due to being compressed is reduced, assuming that the heat is reduced, the energy of vibration counteracting with the heat is also reduced, the total vibration energy is unchanged, so that the vibration energy transmitted to the fixing member 200 is increased, and the vibration reduction effect. The process of extending the piston rod 120 out of the cylinder 110 is as theoretically demonstrated.

Thus, the leakage of the gas Q is prevented by the oil Y, which avoids the above-mentioned situation and effectively maintains the vibration damping effect of the piston rod 120.

The outer wall of the cylinder 110 may be respectively provided with a pressure gauge (not shown) and an oil valve 131, and a detection end of the pressure gauge extends into the containing cavity for detecting the pressure of the gas Q in the containing cavity.

The oil valve 131 is communicated with the cavity, the oil valve 131 is used as a switch, and the oil valve 131 is opened to inject the engine oil Y into the cavity or discharge the engine oil Y in the cavity through the oil valve 131.

Through the mode of filling into engine oil Y or pump drainage engine oil Y into the appearance intracavity through the fuel tap 131, can adjust the level to the damping structure, when the damping structure normal operating, also can monitor the pressure condition of holding the intracavity gas Q at any time, the discovery is unusual can in time adjust the oil mass in the appearance intracavity to guarantee damping structure's overall stability.

Further, taking the suspension device as an example, when the suspension device is applied for a long time or the vibration load is too large, the shock absorption assembly may suddenly fail or break, so that the suspension device may suddenly drop, and in order to ensure safety, the suspension device is not prone to falling or being damaged by the impact load, and the safety assembly between the fixing member 200 and the vibrating member 300.

The safety component comprises a first sleeve 141 connected with the mounting plate 134 and a second sleeve 142 connected with the vibrating piece 300, wherein the first sleeve 141 is arranged in parallel with the cylinder barrel 110, and the second sleeve 142 is sleeved in the first sleeve 141 and connected through a pin shaft. The pin includes a first pin 144 and a second pin 143, the first pin 144 is made of steel, the second pin 143 is made of rubber, or the second pin 143 is made of other elastic materials, and the first pin 144 is located at one end close to the vibrating element 300.

The first sleeve 141 and the second sleeve 142 are respectively provided with an oval notch, a first pin shaft 144 and a second pin shaft 143 are arranged in the oval notch, the first pin shaft 144 is a steel pin shaft and plays a role in rigid connection, and the second pin shaft 143 is a rubber pin shaft and plays a role in buffering.

In a normal state, the first pin 144 and the second pin 143 are not stressed, and once the damping assembly suddenly fails or breaks, the suspension device below can be hung through the safety assembly, so that the suspension device is prevented from falling to cause danger or being damaged by impact load.

The number of the safety components can also be set according to specific needs, for example, as shown in fig. 1, the present embodiment provides two damping structures and one safety component, and the safety component is located between the two damping structures.

To sum up, the embodiment of the utility model provides a damping structure, through the tensile or compressed gas Q doing work of piston rod 120 concertina movement, turn into the vibration energy of vibrating part 300 the heat of gaseous Q, the kinetic energy of vibration is totally consumed through the heat dissipation of gaseous Q, weakens the vibration of transmitting mounting 200 department. Meanwhile, the damping spring 132 is further arranged between the connecting part of the piston rod 120 and the vibrating member 300, so that the damping effect is further ensured, the vibration effects of vibration, noise and the like of the vibration of the vibrating member 300 on the fixing member 200 can be effectively buffered, and the damping is realized. In addition, in order to secure safety and protect the suspension device, a safety assembly is provided between the fixing member 200 and the vibration member 300 to suspend the suspension device, thereby preventing the shock-absorbing assembly from suddenly failing or breaking, the suspension device from falling to cause a danger, or from being damaged by an impact load.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a damping structure, its characterized in that, including the cylinder and can stretch out and draw back the piston rod of motion in the cylinder, the piston rod stretch into the one end of cylinder with closed space between the cylinder is formed with the appearance chamber, the other end of piston rod is used for being connected with the vibrating part, the cylinder is used for with mounting fixed connection.

2. The vibration damping structure according to claim 1, wherein the cavity is filled with oil, and the oil is disposed between the piston rod and the cylinder tube in the cavity.

3. The vibration damping structure according to claim 2, wherein a pressure gauge is arranged on the outer wall of the cylinder barrel, and a detection end of the pressure gauge extends into the cavity.

4. The vibration damping structure according to claim 2, wherein an oil valve is provided on an outer wall of the cylinder, the oil valve is communicated with the cavity, and the engine oil is injected into or discharged from the cavity through the oil valve.

5. The vibration damping structure according to claim 1, wherein an end of the piston rod is connected to the vibrating member by a damping spring.

6. The vibration damping structure according to any one of claims 1 to 5, further comprising a mounting plate, wherein the cylinder is connected to the fixing member through the mounting plate.

7. The vibration damping structure according to claim 6, wherein the cylinder and the piston rod form a vibration damping unit, a plurality of vibration damping units are provided between the fixed member and the vibrating member, and the cylinders of the plurality of vibration damping units are connected to the fixed member through the mounting plate.

8. The vibration damping structure according to claim 7, further comprising a safety assembly disposed between the fixed member and the vibrating member, wherein the safety assembly includes a first sleeve connected to the mounting plate and a second sleeve connected to the vibrating member, the first sleeve is disposed in parallel with the cylinder tube, and the second sleeve is sleeved in the first sleeve and connected thereto by a pin.

9. The vibration damping structure according to claim 8, wherein the pin comprises a first pin and a second pin, the first pin is made of steel, the second pin is made of rubber, and the first pin is located at one end close to the vibrating member.

10. The vibration damping structure according to claim 6, wherein the mounting plate is fixed to the fixing member by a bolt.

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