Passive damping shock absorber

Abstract

The utility model discloses a passive damping shock absorber, include: shell, counterweight, a plurality of elastic rubber block, a plurality of oil pressure buffer, a plurality of frequency adjustment screw, the shell is provided with the containing bin, the counterweight, elastic rubber block places in containing bin, oil pressure buffer installs on the shell, and the anti -collision cap of oil pressure buffer one end stretches into containing bin and bears counterweight, and the other end stretches out the shell, elastic rubber block sets up between counterweight and the lateral wall of containing bin, and frequency adjustment screw passes through the shell and stretches into containing bin and bears elastic rubber block, oil pressure buffer symmetry sets up at the both ends of shell, the utility model discloses the mode of passive vibration suppression of no power, does not waste energy, does not add motor, pure mechanical vibration suppression, low in cost, can realize the vibration reduction of automatic equipment with small cost.

Description

Technical Field

[0001] This utility model relates to the field of vibration damper technology, and in particular to a passive damping vibration damper. Background Technology

[0002] When the working head of automated equipment operates at high speed, the reaction force causes the frame to vibrate, resulting in reduced equipment accuracy. To maintain the required accuracy, the operating speed must be reduced, the equipment counterweight increased, or the frame rigidity increased. Without suppressing vibration, equipment accuracy will decrease, production efficiency will be limited, and the increased equipment weight will lead to increased costs.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a passive damping vibration damper to achieve vibration reduction of automated equipment at a relatively low cost.

[0005] The technical solution of this utility model is as follows: A passive damping vibration damper is provided, comprising: a housing, a counterweight, several elastic rubber blocks, several hydraulic dampers, and several frequency adjusting screws; the housing is provided with a receiving chamber, and the counterweight and elastic rubber blocks are placed inside the receiving chamber; the hydraulic damper is installed on the housing, one end of the anti-collision cap of the hydraulic damper extends into the receiving chamber and presses against the counterweight, and the other end extends out of the housing; the elastic rubber blocks are disposed between the counterweight and the side wall of the receiving chamber, and the frequency adjusting screws pass through the housing, extend into the receiving chamber, and press against the elastic rubber blocks; the hydraulic dampers are symmetrically arranged at both ends of the housing. When the passive damping vibration damper is installed on equipment requiring vibration reduction, the counterweight can move in the opposite direction to the working head of the equipment, thereby reducing vibration and achieving vibration reduction of automated equipment at a relatively low cost.

[0006] There are two frequency adjustment screws, and the two frequency adjustment screws are located at the same end of the housing.

[0007] Furthermore, the hydraulic damper is positioned between two frequency adjustment screws on the same end.

[0008] Furthermore, the outer casing includes: a housing with an opening, a cover plate sealing the opening; and the accommodating compartment disposed within the housing.

[0009] Furthermore, the housing is provided with a first screw hole, and the cover plate is provided with a second screw hole, the first screw hole and the second screw hole engaging. Screws pass through the first screw hole and the second screw hole, thereby assembling the housing and the cover plate.

[0010] Furthermore, the housing is provided with mounting screw holes and / or magnets for mounting the housing onto the device.

[0011] The ability to suppress vibration is strongest when the weight of the counterweight is comparable to that of the high-speed moving working head of the equipment; for machines with high frame rigidity and less severe vibration, the weight of the counterweight can be appropriately lighter.

[0012] The housing has mounting screw holes. The best effect is achieved by installing this utility model at the point of maximum vibration amplitude of the equipment, and the length direction should be aligned with the vibration direction; otherwise, it will have no effect. Alternatively, it can be attached to the frame with a magnet.

[0013] Adjust the frequency adjustment screw according to the speed (vibration frequency) of the working head of the equipment. When the speed is high, the frequency adjustment screw should be tightened, and vice versa. The frequency will match the working head frequency when the vibration is minimal. If the vibration suppression effect is not good, the hardness of the hydraulic damper can be replaced or adjusted.

[0014] The counterweight moves in the opposite direction to the working head, and the hydraulic damper absorbs the kinetic energy of the counterweight, causing it to stop quickly.

[0015] By adopting the above solution, this utility model provides a passive damping vibration isolator. Utilizing the basic principle of momentum conservation in physics, it features a simple structure, ease of use, and does not reduce the operating speed of automated equipment while suppressing vibration. This utility model belongs to a non-powered passive vibration suppression method, consuming no energy, requiring no additional motor, and employing purely mechanical vibration suppression. It is low-cost and can achieve vibration reduction for automated equipment at a minimal cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0017] Figure 2 for Figure 1 A structural schematic diagram from another perspective of the embodiment;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure without the cover plate in the embodiment. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Please see Figures 1-3This utility model provides a passive damping vibration damper, comprising: a housing, a counterweight 10, several elastic rubber blocks 11, several hydraulic dampers 12, and several frequency adjusting screws 13; the housing is provided with a receiving chamber, and the counterweight 10 and elastic rubber blocks 11 are placed in the receiving chamber; the hydraulic dampers 12 are mounted on the housing, with one end of the anti-collision cap of the hydraulic damper 12 extending into the receiving chamber and pressing against the counterweight 10, and the other end extending out of the housing; the elastic rubber blocks 11 are disposed between the counterweight 10 and the side wall of the receiving chamber, and the frequency adjusting screws 13 pass through the housing and extend into the receiving chamber and press against the elastic rubber blocks 11; the hydraulic dampers 12 are symmetrically arranged at both ends of the housing. When the passive damping vibration damper is installed on equipment requiring vibration reduction, the counterweight 10 can move in the opposite direction to the working head of the equipment, thereby reducing vibration and achieving vibration reduction of automated equipment at a relatively low cost.

[0021] In this embodiment, there are two frequency adjustment screws 13, and the two frequency adjustment screws 13 are located at the same end of the housing.

[0022] In this embodiment, the hydraulic buffer 12 is disposed between two frequency adjustment screws 13 at the same end.

[0023] In this embodiment, the outer shell includes: a shell 14 with an opening, and a cover plate 15 that seals the opening; the accommodating compartment is disposed in the shell 14.

[0024] In this embodiment, the housing 14 is provided with a first screw hole 16, and the cover plate 15 is provided with a second screw hole 17. The first screw hole 16 and the second screw hole 17 mate. Screws pass through the first screw hole 16 and the second screw hole 17, thereby realizing the assembly of the housing 14 and the cover plate 15.

[0025] In this embodiment, the housing 14 is provided with mounting screw holes 18 and magnets 19, which are used to mount the housing onto the device.

[0026] When the weight of counterweight 10 is comparable to that of the high-speed moving working head of the equipment, the ability to suppress vibration is strongest; for machines with high frame rigidity and less severe vibration, the weight of counterweight 10 can be appropriately lighter.

[0027] The housing 14 has mounting screw holes 18. Conventionally, this utility model is best installed at the point where the vibration amplitude of the equipment is the largest, and the length direction should be aligned with the vibration direction; otherwise, it will have no effect. Alternatively, it can be attached to the frame with a magnet.

[0028] Adjust the frequency adjustment screw 13 according to the speed (vibration frequency) of the working head of the equipment. When the speed is high, the frequency adjustment screw 13 should be tightened, and vice versa. The frequency will match the working head frequency when the vibration is minimal. If the vibration suppression effect is not good, the hardness of the hydraulic damper 12 can be replaced or adjusted.

[0029] The counterweight 10 moves in the opposite direction to the working head, and the hydraulic damper 12 absorbs the kinetic energy of the counterweight 10, causing the counterweight 10 to stop quickly.

[0030] In summary, this utility model provides a passive damping vibration isolator that utilizes the basic principle of momentum conservation in physics. It features a simple structure, ease of use, and does not reduce the operating speed of automated equipment while suppressing vibration. This utility model belongs to a non-powered passive vibration suppression method, consuming no energy, requiring no additional motor, and employing purely mechanical vibration suppression. It is low-cost and can achieve vibration reduction for automated equipment at a minimal cost.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A passive damping vibration damper, characterized in that, include: The device comprises an outer shell, a counterweight, several elastic rubber blocks, several hydraulic dampers, and several frequency adjustment screws. The outer shell has a receiving compartment, within which the counterweight and elastic rubber blocks are placed. The hydraulic dampers are mounted on the outer shell, with one end of the damper's anti-collision cap extending into the receiving compartment and pressing against the counterweight, and the other end extending out of the outer shell. The elastic rubber blocks are positioned between the counterweight and the side wall of the receiving compartment. The frequency adjustment screws pass through the outer shell, extend into the receiving compartment, and press against the elastic rubber blocks. The hydraulic dampers are symmetrically arranged at both ends of the outer shell.

2. A passive, damped vibration absorber according to claim 1, wherein There are two frequency adjustment screws, and the two frequency adjustment screws are located at the same end of the housing.

3. A passive, damped vibration absorber according to claim 2, wherein, One of the hydraulic dampers is positioned between the two frequency adjustment screws.

4. A passive, damped vibration absorber according to claim 1, wherein The outer casing includes: a shell having an opening, and a cover plate sealing the opening; the accommodating compartment is disposed within the shell.

5. A passive, damped vibration absorber according to claim 4, wherein The housing is provided with a first screw hole, and the cover plate is provided with a second screw hole, the first screw hole and the second screw hole are engaged.

6. A passive, damped vibration absorber according to claim 4, wherein The housing is provided with mounting screw holes and / or magnets.

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