CN217177257U - A two-degree-of-freedom collision nonlinear vibration damping device - Google Patents

Abstract

The utility model discloses a two degree of freedom collision nonlinearity damping devices, including the bottom plate and the frame that disappears that is located the bottom plate top, the bottom fixed mounting of frame inner chamber that disappears has the attenuator, the utility model relates to a mechanism engineering vibration control technical field. This two degree of freedom collision nonlinear damping device, through receiving the bearing plate of gravity push down at the fore-set, make the bearing plate downstream, effort through first spring, make the bearing plate downstream can the rebound, the bearing plate reciprocates and can collide the damping pole, thereby the extrusion damping pole retracts back to in the damping frame, under the effort of second spring, make the damping pole again from the internal roll-off of damping frame, continue to collide the bearing plate that reciprocates, thereby make and reduce the effort that first spring drove the bearing plate from top to bottom, the reduction bearing plate that can be fine reciprocates the range, thereby make first spring kick-backs and can not too violent, make the driver take advantage of in the car and sit more comfortable.

Description

A two-degree-of-freedom collision nonlinear vibration damping device

technical field

The utility model relates to the technical field of mechanical engineering vibration control, in particular to a two-degree-of-freedom collision nonlinear vibration damping device.

Background technique

The degree of freedom refers to the number of independent coordinates of the mechanical system. In general, only one spring plays a major role in the vibration isolation system. Because the elasticity of the spring is limited by the maximum bearing capacity, the spring is generally hard, which makes the spring rebound too much. Violent, so that the driver feels uncomfortable in the car, the vibration isolation equipment is not well eliminated, and the vibration isolation equipment is not easy to disassemble and install, and it is not convenient to maintain the vibration isolation equipment.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a two-degree-of-freedom collision nonlinear vibration damping device, which solves the problems that the spring rebounds too violently and the vibration damping device is not easy to disassemble and install.

In order to achieve the above purpose, the present invention is realized through the following technical solutions: a two-degree-of-freedom collision nonlinear vibration damping device, comprising a bottom plate and a vibration damping frame located above the bottom plate, and the bottom of the inner cavity of the vibration damping frame is fixedly installed with a A damper, a load-bearing plate is fixedly connected to the top of the damper, a first spring is sleeved on the outer surface of the damper and located below the load-bearing plate, a top column is fixedly connected to the top of the load-bearing plate, and the damper is The upper and lower parts of the left and right sides of the inner cavity of the vibration frame are fixedly connected with a vibration-absorbing frame, a sliding plate is slidably connected between the top and bottom of the inner cavity of the vibration-absorbing frame, and the side of the vibration-absorbing frame close to the damper penetrates through A vibration-damping rod is slidably connected, one end of the vibration-damping rod away from the damper is fixedly connected with the side of the sliding plate close to the damper, and a second spring is fixedly connected to the side of the inner cavity of the vibration-damping frame away from the vibration-damping rod , the end of the second spring close to the damper is fixedly connected with the side of the sliding plate away from the damper.

Preferably, a fixing plate is fixedly connected to the bottom of the vibration-absorbing frame, a support plate is fixedly connected to the top of the bottom plate, and a support column is fixedly connected to the bottom of the bottom plate.

Preferably, connecting plates are fixedly connected to the top of the fixing plate and located on the left and right sides of the vibration-absorbing frame, and a side of the connecting plate that is far from the vibration-absorbing frame penetrates and is slidably connected with clamping rods.

Preferably, a baffle is fixedly connected to one end of the clamping rod away from the vibration damping frame, and the outer surfaces of the two clamping rods are located between the opposite side of the two connecting plates and the opposite side of the two baffles The sleeve is provided with a third spring.

Preferably, the top of the fixing plate is located between the left and right sides of the vibration-absorbing frame and the connecting plate, and a clamping plate is penetrating and slidingly connected, and the bottom of the clamping plate is fixedly connected with the top of the bottom plate.

Preferably, a bayonet adapted to the clamping rod is provided on the side of the clamping plate away from the vibration damping frame.

beneficial effect

The utility model provides a two-degree-of-freedom collision nonlinear vibration damping device. Compared with the existing technology, it has the following beneficial effects:

(1) The two-degree-of-freedom collision non-linear vibration damping device presses the load-bearing plate under the gravity received by the top column, so that the load-bearing plate moves downward, and through the force of the first spring, the downward movement of the load-bearing plate will move upward. , the up-and-down movement of the load-bearing plate will collide with the vibration-absorbing rod, so that the vibration-absorbing rod will be squeezed and retracted into the vibration-absorbing frame. The load-bearing plate that moves up and down continues to collide, thereby reducing the force of the first spring to drive the load-bearing plate up and down, which can well reduce the amplitude of the up-and-down movement of the load-bearing plate, so that the rebound of the first spring will not be too violent, so that the driver It is more comfortable to ride in the car.

(2) The two-degree-of-freedom collision nonlinear vibration damping device, by pulling the two baffles to the left and right sides, drives the clamping rod out of the bayonet in the clamping plate, so that the clamping rod is no longer stuck on the clamping plate, and then moves upwards The anti-vibration frame can disassemble and install the anti-vibration frame and the bottom plate very well. It is more convenient and quick to operate and use, and it can well maintain the anti-vibration equipment.

Description of drawings

Fig. 1 is the external structure schematic diagram of the utility model;

2 is a schematic diagram of the internal structure of the vibration damping frame of the present invention;

FIG. 3 is a partial enlarged view of A in FIG. 1 of the present utility model.

In the figure: 1. Bottom plate; 2. Anti-vibration frame; 3. Damper; 4. Load-bearing plate; 5. First spring; 6. Top column; 7. Anti-vibration frame; 8. Sliding plate; 9. Anti-vibration rod 10, the second spring; 11, the fixed plate; 12, the support plate; 13, the support column; 14, the connecting plate;

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a two-degree-of-freedom collision nonlinear vibration damping device, comprising a bottom plate 1 and a vibration damping frame 2 located above the bottom plate 1, and the bottom of the inner cavity of the vibration damping frame 2 is at the bottom A damper 3 is fixedly installed, a load-bearing plate 4 is fixedly connected to the top of the damper 3, and a first spring 5 is sleeved on the outer surface of the damper 3 and located under the load-bearing plate 4, and the first spring 5 is an industrial-grade spring with Very good anti-fatigue ability, can be repeatedly stretched for long-term use, and can be replaced after long-term use. A vibration-absorbing frame 7 is fixedly connected, a sliding plate 8 is slidably connected between the top and the bottom of the inner cavity of the vibration-absorbing frame 7, and a vibration-absorbing rod 9 is penetrated and slidably connected to the side of the vibration-absorbing frame 7 close to the damper 3, so as to eliminate vibration The end of the rod 9 away from the damper 3 is fixedly connected to the side of the sliding plate 8 close to the damper 3, and the side of the inner cavity of the vibration-absorbing frame 7 away from the vibration-absorbing rod 9 is fixedly connected with a second spring 10, and the second spring 10 is an industrial The first-grade spring has good fatigue resistance, can be repeatedly stretched for long-term use, and can be replaced after long-term use. The connection can well reduce the range of up and down movement of the bearing plate 4, so that the first spring 5 will not rebound too violently, so that the driver can ride more comfortably in the car.

Further, a fixing plate 11 is fixedly connected to the bottom of the vibration-absorbing frame 2 , a supporting plate 12 is fixedly connected to the top of the bottom plate 1 , a supporting column 13 is fixedly connected to the bottom of the bottom plate 1 , and the top of the supporting plate 12 is closely connected to the bottom of the fixed plate 11 . touch.

Further, in order to facilitate the disassembly and maintenance of the vibration damping frame 2, a connecting plate 14 is fixedly connected to the top of the fixing plate 11 and located on the left and right sides of the vibration damping frame 2. A clamping rod 15 is slidably connected, and one end of the clamping rod 15 away from the vibration damping frame 2 is fixedly connected with a baffle plate 16 . A third spring 17 is set between the opposite sides. The third spring 17 is an industrial-grade spring with good fatigue resistance. It can be repeatedly stretched for long-term use, and can be replaced after long-term use. At the top of 11 and between the left and right sides of the vibration damping frame 2 and the connecting plate 14, a clamping plate 18 is penetrated and slidably connected. One side is provided with a bayonet adapted to the clamping rod 15, which can well disassemble and install the vibration damping frame 2 and the bottom plate 1, and is more convenient and quick to operate and use, and can well maintain the vibration damping equipment.

Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

When in use, when the top column 6 is subjected to gravity, the bearing plate 4 will be pressed down, so that the bearing plate 4 will be lowered and pressed down on the damper 3, so that the first spring 5 will be pressed down by gravity, so that the first spring 5 will drive the bearing plate 4 to move up and down. , the downward movement of the bearing plate 4 will touch the vibration damping rod 9, which will collide with the vibration damping rod 9, squeeze the vibration damping rod 9 to retract to the vibration damping frame 7, and under the force of the second spring 10, make the vibration damping rod 9 The rod 9 retracts into the vibration damping frame 7 and then slides out. After receiving the force of the first spring 5, the bearing plate 4 will move upward and hit the damping rod 9 again, and squeeze the damping rod 9 again to dampen the vibration. In the frame 7, the load-bearing plate 4 is moved up and down by the force of the first spring 5, and the height of the up and down movement is gradually reduced by the collision of the vibration damping rod 9. The bayonet in 18 makes the clamping rod 15 no longer block the clamping plate 18, and the fixed plate 11 is moved upwards to disassemble the vibration-absorbing frame 2 from the bottom plate 1.

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

Claims (6)

1. The utility model provides a two degree of freedom collision nonlinearity damping devices, includes bottom plate (1) and is located damping frame (2) of bottom plate (1) top, its characterized in that: the damping device is characterized in that a damper (3) is fixedly mounted at the bottom of an inner cavity of the vibration absorption frame (2), a bearing plate (4) is fixedly connected to the top of the damper (3), a first spring (5) is sleeved on the outer surface of the damper (3) and positioned below the bearing plate (4), a top column (6) is fixedly connected to the top of the bearing plate (4), vibration absorption frames (7) are fixedly connected to the upper portions and the lower portions of the left side and the right side of the inner cavity of the vibration absorption frame (2), a sliding plate (8) is slidably connected between the top and the bottom of the inner cavity of the vibration absorption frame (7), a vibration absorption rod (9) penetrates through and is slidably connected to one side of the vibration absorption frame (7) close to the damper (3), one end of the vibration absorption rod (9) far away from the damper (3) is fixedly connected to one side of the sliding plate (8) close to the damper (3), and a second spring (10) is fixedly connected to one side of the inner cavity of the vibration absorption frame (7) far away from the vibration absorption rod (9), one end of the second spring (10) close to the damper (3) is fixedly connected with one side, far away from the damper (3), of the sliding plate (8).

2. The two-degree-of-freedom collision nonlinear vibration damping device according to claim 1, characterized in that: the bottom fixedly connected with fixed plate (11) of vibration damping frame (2), the top fixedly connected with backup pad (12) of bottom plate (1), the bottom fixedly connected with support column (13) of bottom plate (1).

3. A two-degree-of-freedom collision nonlinear vibration damping device according to claim 2, wherein: the top of fixed plate (11) just is located the equal fixedly connected with connecting plate (14) in both sides about damping frame (2), one side that damping frame (2) was kept away from in connecting plate (14) runs through and sliding connection has kelly (15).

4. A two-degree-of-freedom collision nonlinear vibration damping device according to claim 3, wherein: one end fixedly connected with baffle (16), two of damping frame (2) are kept away from in kelly (15) the surface of kelly (15) just is located and is equipped with third spring (17) between one side that two connecting plates (14) carried on the back mutually and one side that two baffle (16) are relative.

5. A two-degree-of-freedom collision nonlinear vibration damping device according to claim 3, wherein: the damping device is characterized in that a clamping plate (18) penetrates and is connected between the left side and the right side of the damping frame (2) and the connecting plate (14) in a sliding mode at the top of the fixing plate (11), and the bottom of the clamping plate (18) is fixedly connected with the top of the bottom plate (1).

6. The two-degree-of-freedom collision nonlinear vibration damping device according to claim 5, wherein: and a bayonet matched with the clamping rod (15) is formed in one side, away from the vibration absorption frame (2), of the clamping plate (18).

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