Vibration reduction system of vibration equipment

Abstract

The utility model relates to the technical field of vibration reduction of vibration equipment, in particular to a vibration reduction system of vibration equipment. The vibration reduction system comprises a vibration reduction mechanism and a vibration reduction regulation and control assembly. The vibration reduction mechanism comprises a bottom plate, a top plate and a magnetorheological vibration reduction assembly. The top plate and the bottom plate are oppositely arranged up and down, and vibration equipment is arranged on the top plate; one end of the magneto-rheological vibration reduction assembly is connected with the top plate, and the other end of the magneto-rheological vibration reduction assembly is connected with the bottom plate. The vibration reduction regulation and control assembly is arranged on the vibration reduction mechanism, and the vibration reduction regulation and control assembly and the vibration reduction mechanism cooperate to achieve the level that vibration reduction damping force changes continuously and is controllable.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction of vibration equipment, and particularly relates to a vibration reduction system for vibration equipment. Background Art

[0002] In industrial production and daily life, vibration equipment such as motors and engines is often required. However, the vibration generated by such vibration equipment during use will reduce its service life. At present, generally, vibration reduction components such as rubber pads and springs are selected to be arranged at the bottom of such vibration equipment. But such...

[0003] In summary, it is necessary to provide a vibration reduction system for vibration equipment to solve the problem in the prior art that the damping of the vibration reduction components is fixed and cannot be automatically adjusted according to the actual vibration situation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a vibration reduction system for vibration equipment, and the specific technical solutions are as follows:

[0005] In the first aspect, the utility model provides a vibration reduction system for vibration equipment, including a vibration reduction mechanism and a vibration reduction control component;

[0006] The vibration reduction mechanism includes a bottom plate, a top plate and a magnetorheological vibration reduction component; the top plate and the bottom plate are arranged opposite to each other up and down, and the vibration equipment is arranged on the top plate; one end of the magnetorheological vibration reduction component is connected to the top plate, and the other end is connected to the bottom plate;

[0007] The vibration reduction control component includes a controller and an acceleration sensor, the controller is arranged on the top plate or the bottom plate, and is electrically connected to the magnetorheological vibration reduction component; the acceleration sensor is arranged on the top plate, and is connected to the controller through a data transmission line.

[0008] In the second aspect, the utility model provides a vibration reduction system for vibration equipment, including a vibration reduction mechanism and a vibration reduction control component;

[0009] The vibration reduction mechanism includes a bottom plate, a top plate and a magnetorheological vibration reduction component; the top plate and the bottom plate are arranged opposite to each other up and down, and the vibration equipment is arranged on the top plate; one end of the magnetorheological vibration reduction component is connected to the top plate, and the other end is connected to the bottom plate;

[0010] The vibration reduction control component includes a controller and two acceleration sensors, the controller is arranged on the top plate or the bottom plate, and is electrically connected to the magnetorheological vibration reduction component; wherein, one acceleration sensor is arranged on the top plate, the other acceleration sensor is arranged on the bottom plate, and both acceleration sensors are connected to the controller through data transmission lines.

[0011] In a third aspect, the present utility model provides a vibration equipment damping system, which includes a damping mechanism and a damping control component;

[0012] The damping mechanism includes a bottom plate, a top plate and a magnetorheological damping component; the top plate and the bottom plate are arranged opposite to each other up and down, and the vibration equipment is arranged on the top plate; one end of the magnetorheological damping component is connected to the top plate, and the other end is connected to the bottom plate;

[0013] The damping control component includes a controller, an acceleration sensor and a displacement sensor. The controller is arranged on the top plate or the bottom plate and is electrically connected to the linear magnetorheological damping component; the acceleration sensor is arranged on the top plate and is connected to the controller through a data transmission line; one end of the displacement sensor is connected to the top plate, the other end is connected to the bottom plate, and is connected to the controller through a data transmission line.

[0014] In a fourth aspect, the present utility model provides a vibration equipment damping system, which includes a damping mechanism and a damping control component;

[0015] The damping mechanism includes a bottom plate, a top plate and a magnetorheological damping component; the top plate and the bottom plate are arranged opposite to each other up and down, and the vibration equipment is arranged on the top plate; one end of the magnetorheological damping component is connected to the top plate, and the other end is connected to the bottom plate;

[0016] The damping control component includes a controller and a displacement sensor. The controller is arranged on the top plate or the bottom plate and is electrically connected to the linear magnetorheological damping component; one end of the displacement sensor is connected to the top plate, the other end is connected to the bottom plate, and is connected to the controller through a data transmission line.

[0017] The technical solutions in the first aspect and the fourth aspect further include the following optimization solutions:

[0018] Optionally, the magnetorheological damping assembly is a single-rod movable magnetoconductive structure, which includes a cylinder block assembly, a movable magnetoconductive body, an injection-molded excitation coil, a force-bearing rod and an airbag; the cylinder block assembly is arranged on the bottom plate and includes a cylinder barrel, an upper end cover arranged at one end of the cylinder barrel, and a lower end cover arranged at the other end of the cylinder barrel; magnetorheological fluid is filled in the cylinder barrel; the movable magnetoconductive body is slidably arranged in the cylinder barrel, and a gap for the magnetorheological fluid to flow through is provided between the movable magnetoconductive body and the inner wall of the cylinder barrel; an annular groove is arranged on the outer periphery of the movable magnetoconductive body; the injection-molded excitation coil is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the force-bearing rod and is connected to the controller; a power supply connected to the wire is arranged in the controller; one end of the force-bearing rod is connected to the movable magnetoconductive body, and the other end penetrates through the upper end cover and is connected to the top plate; the airbag is arranged at one end of the cylinder barrel far away from the force-bearing rod and is connected to the lower end cover; the lower end cover is connected to the bottom plate.

[0019] Optionally, the magnetorheological damping assembly is a double-rod movable magnetoconductive structure, which includes a cylinder block assembly, a movable magnetoconductive body, an injection-molded excitation coil, a force-bearing rod and a driven rod; the cylinder block assembly is arranged on the bottom plate and includes a cylinder barrel, an upper end cover arranged at one end of the cylinder barrel, and a lower end cover arranged at the other end of the cylinder barrel; magnetorheological fluid is filled in the cylinder barrel; the movable magnetoconductive body is slidably arranged in the cylinder barrel, and a gap for the magnetorheological fluid to flow through is provided between the movable magnetoconductive body and the inner wall of the cylinder barrel; an annular groove is arranged on the outer periphery of the movable magnetoconductive body; the injection-molded excitation coil is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the force-bearing rod and is connected to the controller; a power supply connected to the wire is arranged in the controller; one end of the force-bearing rod is connected to the movable magnetoconductive body, and the other end penetrates through the upper end cover and is connected to the top plate; one end of the driven rod is connected to the end of the movable magnetoconductive body far away from the force-bearing rod, and the other end is slidably penetrated through the lower end cover; the lower end cover is connected to the bottom plate.

[0020] Optionally, the magnetorheological damping assembly is a single-rod fixed magnetic conductor structure, which includes a cylinder block assembly, a fixed magnetic conductor, an injection-molded excitation coil, a force rod, a force plate and an airbag; the cylinder block assembly is arranged on the bottom plate, and it includes a cylinder block, an upper end cover arranged at one end of the cylinder block and a lower end cover arranged at the other end of the cylinder block; magnetorheological fluid is filled in the cylinder block; the fixed magnetic conductor is fixedly arranged in the cylinder block, and a channel for the magnetorheological fluid to flow through is arranged on the fixed magnetic conductor; an annular groove is arranged on the outer periphery of the fixed magnetic conductor; the injection-molded excitation coil is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the cylinder block and is connected to the controller; a power supply connected to the wire is arranged in the controller; the force plate is movably arranged in the cylinder block and is located between the fixed magnetic conductor and the upper end cover; one end of the force rod is connected to the force plate, and the other end penetrates through the upper end cover and is connected to the top plate; the airbag is arranged at one end of the cylinder block far away from the force rod and is connected to the lower end cover; the lower end cover is connected to the bottom plate.

[0021] Optionally, the magnetorheological damping assembly is a fixed magnetic conductor universal force structure, which includes a cylinder block assembly, a fixed magnetic conductor, an injection-molded excitation coil, a force rod, a connecting part and an airbag; the cylinder block assembly is arranged on the bottom plate, and it includes a cylinder block, an upper elastic member arranged at one end of the cylinder block and a lower end cover arranged at the other end of the cylinder block; magnetorheological fluid is filled in the cylinder block; the fixed magnetic conductor is fixedly arranged in the cylinder block, and a channel for the magnetorheological fluid to flow through is arranged on the fixed magnetic conductor; an annular groove is arranged on the outer periphery of the fixed magnetic conductor; the injection-molded excitation coil is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the cylinder block and is connected to the controller; a power supply connected to the wire is arranged in the controller; the connecting part is movably arranged in the cylinder block and is located between the fixed magnetic conductor and the upper elastic member; the connecting part is a frustum structure, which includes a large-diameter end facing the fixed magnetic conductor and a small-diameter end facing the upper elastic member; one end of the force rod is connected to the large-diameter end of the connecting part, and the other end penetrates through the upper elastic member and is connected to the top plate; the airbag is arranged at one end of the cylinder block far away from the force rod and is connected to the lower end cover; the cylinder block is connected to the bottom plate.

[0022] Optionally, the damping mechanism further includes an elastic damping member. There are multiple groups of the elastic damping members, and they are evenly arranged between the top plate and the bottom plate; each group of the elastic damping members includes an upper connecting block connected to the top plate, a lower connecting block connected to the bottom plate and a die spring arranged between the upper connecting block and the lower connecting block.

[0023] Applying the technical solution of the present utility model has at least the following beneficial effects:

[0024] The vibration equipment damping system provided by the present utility model uses a combination of a damping mechanism and a damping control component. No matter which one of the magnetorheological damping components used in the damping mechanism is a single-rod movable magnetic conductor structure, a double-rod movable magnetic conductor structure, a single-rod fixed magnetic conductor structure, or a fixed magnetic conductor universal force-bearing structure, it can be combined with the damping control component to achieve a continuously variable and controllable level of damping force, solving the problem in the prior art that the damping of the damping component is fixed and cannot be automatically adjusted according to the actual vibration situation.

[0025] In addition to the purposes, features, and advantages described above, the present utility model has other purposes, features, and advantages. The following will refer to the drawings for a further detailed description of the present utility model. Brief Description of the Drawings

[0026] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0027] Figure 1 is a schematic structural diagram of a vibration equipment damping system in Embodiment 1 of the present utility model;

[0028] Figure 2 is a schematic structural diagram of the magnetorheological damping component in Embodiment 1 of the present utility model being a single-rod movable magnetic conductor structure;

[0029] Figure 3 is a schematic structural diagram of the magnetorheological damping component in Embodiment 2 of the present utility model being a double-rod movable magnetic conductor structure;

[0030] Figure 4 is a schematic structural diagram of the magnetorheological damping component in Embodiment 3 of the present utility model being a single-rod fixed magnetic conductor structure;

[0031] Figure 5 is a schematic structural diagram of the magnetorheological damping component in Embodiment 4 of the present utility model being a fixed magnetic conductor universal force-bearing structure;

[0032] Figure 6 is a schematic structural diagram of a vibration equipment damping system in Embodiment 5 of the present utility model;

[0033] Figure 7 is a schematic structural diagram of a vibration equipment damping system in Embodiment 6 of the present utility model;

[0034] Figure 8 is a schematic structural diagram of a vibration equipment damping system in Embodiment 7 of the present utility model;

[0035] Among them, 1. Vibration damping mechanism, 1.1. Bottom plate, 1.2. Top plate, 1.3. Magnetorheological vibration damping component, 1.3.1. Cylinder assembly, 1.3.2. Moving magnetic conductor, 1.3.3. Injection-molded excitation coil, 1.3.4. Force rod, 1.3.5. Airbag, 1.3.6. Driven rod, 1.3.7. Fixed magnetic conductor, 1.3.8. Force plate, 1.3.9. Connection part, 1.3.10. Upper elastic component, 1.4. Elastic vibration damping member, 2. Vibration damping control component, 2.1. Acceleration sensor, 2.2. Displacement sensor. Specific implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See Figure 1 and Figure 2 , a vibration equipment vibration damping system, including a vibration damping mechanism 1 and a vibration damping control component 2;

[0039] The vibration damping mechanism 1 includes a bottom plate 1.1, a top plate 1.2 and a magnetorheological vibration damping component 1.3; the top plate 1.2 and the bottom plate 1.1 are arranged opposite to each other up and down, and a vibration equipment (not shown in the figure) is arranged on the top plate 1.2; one end of the magnetorheological vibration damping component 1.3 is connected to the top plate 1.2, and the other end is connected to the bottom plate 1.1;

[0040] The vibration damping control component 2 includes a controller (not shown in the figure) and an acceleration sensor 2.1, the controller is arranged on the top plate 1.2 or the bottom plate 1.1 and is electrically connected to the magnetorheological vibration damping component 1.3; the acceleration sensor 2.1 is arranged on the top plate 1.2 and is connected to the controller through a data transmission line.

[0041] See Figure 1 and Figure 2, the magnetorheological damping assembly 1.3 is a single-rod movable magnetizable body structure (a total of 4 single-rod movable magnetizable body structures), which includes a cylinder block assembly 1.3.1, a movable magnetizable body 1.3.2, an injection-molded excitation coil 1.3.3 (i.e., an injection layer is provided outside the excitation coil to wrap the excitation coil to prevent it from being damaged by pressure), a force-bearing rod 1.3.4 and an airbag 1.3.5; the cylinder block assembly 1.3.1 is arranged on the bottom plate 1.1 through a mounting bracket, and it includes a cylinder barrel, an upper end cover arranged at one end of the cylinder barrel and a lower end cover arranged at the other end of the cylinder barrel; magnetorheological fluid is filled in the cylinder barrel; the movable magnetizable body 1.3.2 is slidably arranged in the cylinder barrel, and a gap (with a width of 1-3 mm) for the flow of magnetorheological fluid is provided between the movable magnetizable body 1.3.2 and the inner wall of the cylinder barrel; an annular groove is provided on the outer periphery of the movable magnetizable body 1.3.2; the injection-molded excitation coil 1.3.3 is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the force-bearing rod 1.3.4 and is connected to the controller; a power supply connected to the wire is arranged in the controller; one end of the force-bearing rod 1.3.4 is connected to the movable magnetizable body 1.3.2, and the other end penetrates through the upper end cover and is connected to the top plate 1.2; the airbag 1.3.5 is arranged at one end of the cylinder barrel far from the force-bearing rod 1.3.4 and is connected to the lower end cover; the lower end cover is connected to the bottom plate 1.1 through a mounting bracket.

[0042] When the magnetorheological damping assembly 1.3 is a single-rod movable magnetizable body structure, the working principle is as follows:

[0043] After the force-bearing rod 1.3.4 is subjected to a downward pressure, it pushes the movable magnetizable body 1.3.2. The movable magnetizable body 1.3.2 presses down the magnetorheological fluid. After the magnetorheological fluid is squeezed, it flows through the gap. Due to the small width of the gap, when the magnetorheological fluid is pressured to flow, it will be subjected to resistance; at the same time, the controller inputs current to the injection-molded excitation coil 1.3.3, generating a magnetic field around the movable magnetizable body 1.3.2, causing the magnetorheological fluid to change from a Newtonian fluid with low viscosity to a Bingham fluid with high viscosity and low fluidity, increasing the flow damping force, and the damping force changes with the change of current; the airbag 1.3.5 has a compressible space and a resilience force, providing the possibility for the downward pressure and reset of the movable magnetizable body 1.3.2 and the force-bearing rod 1.3.4.

[0044] The damping mechanism 1 further includes an elastic damping member 1.4, which is used to provide elastic supporting force and elastic damping force for the damping mechanism 1; the elastic damping member 1.4 includes eight groups (two groups of elastic damping members 1.4 are arranged on both sides of each single-rod movable magnetizable body structure), and they are evenly arranged between the top plate 1.2 and the bottom plate 1.1; each group of the elastic damping members 1.4 includes an upper connecting block connected to the top plate 1.2, a lower connecting block connected to the bottom plate 1.1, and a die spring arranged between the upper connecting block and the lower connecting block.

[0045] The vibration damping method of the vibration equipment damping system includes:

[0046] Step S1: When the vibration equipment operates, it provides a vibration source for the damping mechanism 1 and the damping control assembly 2 through the top plate 1.2;

[0047] Step S2: The acceleration sensor 2.1 detects the acceleration signal of the vibration source, and the data processing module in the controller integrates the collected acceleration signal in time to obtain the velocity;

[0048] When the velocity is positive and increasing, it means that the magnetorheological damping component 1.3 is in the tensile state and will continue to stretch. The controller increases the current supplied to the injection molding excitation coil 1.3.3, so that the damping force increases and the vibration is reduced;

[0049] When the velocity is positive and decreasing, it means that the magnetorheological damping component 1.3 is in the tensile state and will slow down the stretching. The controller reduces the current supplied to the injection molding excitation coil 1.3.3, so that the damping force decreases, and the magnetorheological damping component 1.3 smoothly changes from stretching to compression, reducing the vibration;

[0050] When the velocity is negative and increasing, it means that the magnetorheological damping component 1.3 is in the compression state and will reduce the compression. The controller increases the current supplied to the injection molding excitation coil 1.3.3, so that the damping force increases, and sudden changes in the vibration direction are avoided to cause hard collisions of the magnetorheological damping component 1.3;

[0051] When the velocity is negative and decreasing, it means that the magnetorheological damping component 1.3 is in the compression state and will continue to compress. The controller reduces the current, so that the damping force decreases, and the magnetorheological damping component 1.3 moves downward smoothly, reducing the vibration.

[0052] Therefore, the vibration damping method of the vibration equipment damping system provided by Embodiment 1 can achieve a continuously variable and controllable level of vibration damping force.

[0053] Embodiment 2:

[0054] See Figure 3, different from Embodiment 1, the magnetorheological damping assembly 1.3 is a double-rod movable magnetic conductor structure (a total of 4 sets of double-rod movable magnetic conductor structures), which includes a cylinder block assembly 1.3.1, a movable magnetic conductor 1.3.2, an injection-molded excitation coil 1.3.3, a force-bearing rod 1.3.4 and a driven rod 1.3.6; the cylinder block assembly 1.3.1 is arranged on the bottom plate 1.1 through a mounting support, and it includes a cylinder, an upper end cover arranged at one end of the cylinder and a lower end cover arranged at the other end of the cylinder; magnetorheological fluid is filled in the cylinder; the movable magnetic conductor 1.3.2 is slidably arranged in the cylinder, and a gap (with a width of 1-3 mm) for the flow of magnetorheological fluid is provided between the movable magnetic conductor 1.3.2 and the inner wall of the cylinder; an annular groove is arranged on the outer periphery of the movable magnetic conductor 1.3.2; the injection-molded excitation coil 1.3.3 is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the force-bearing rod 1.3.4 and is connected to the controller; a power supply connected to the wire is arranged in the controller; one end of the force-bearing rod 1.3.4 is connected to the movable magnetic conductor 1.3.2, and the other end penetrates through the upper end cover and is connected to the top plate 1.2; one end of the driven rod 1.3.6 is connected to the end of the movable magnetic conductor 1.3.2 far from the force-bearing rod 1.3.4, and the other end slidably penetrates through the lower end cover; the lower end cover is connected to the bottom plate 1.1 through a mounting support; a cavity for the sliding of the driven rod 1.3.6 is arranged on the mounting support.

[0055] The working principle of the magnetorheological damping assembly 1.3 when it is a double-rod movable magnetic conductor structure is as follows:

[0056] After the force-bearing rod 1.3.4 is subjected to a downward pressure, it pushes the movable magnetic conductor 1.3.2. The movable magnetic conductor 1.3.2 presses down the magnetorheological fluid. After the magnetorheological fluid is squeezed, it flows through the gap. Due to the small width of the gap, when the magnetorheological fluid is pressured to flow, it will be subject to resistance; at the same time, the controller inputs current to the injection-molded excitation coil 1.3.3, generating a magnetic field around the movable magnetic conductor 1.3.2, making the magnetorheological fluid change from a Newtonian fluid with low viscosity to a Bingham fluid with high viscosity and low fluidity, increasing the flow damping force, and the damping force changes with the change of current; the slidable driven rod 1.3.6 provides the possibility for the downward pressure and reset of the movable magnetic conductor 1.3.2 and the force-bearing rod 1.3.4.

[0057] Embodiment 3:

[0058] See Figure 4, different from Embodiment 1, the magnetorheological damping assembly 1.3 is a single-rod fixed magnetic conductor structure (a total of four single-rod fixed magnetic conductor structures), which includes a cylinder block assembly 1.3.1, a fixed magnetic conductor 1.3.7, an injection-molded excitation coil 1.3.3, a force-bearing rod 1.3.4, a force-bearing disc 1.3.8, and an airbag 1.3.5; the cylinder block assembly 1.3.1 is arranged on the bottom plate 1.1 through a mounting support, and it includes a cylinder, an upper end cover arranged at one end of the cylinder, and a lower end cover arranged at the other end of the cylinder; magnetorheological fluid is filled in the cylinder; the fixed magnetic conductor 1.3.7 is fixedly arranged in the cylinder, and a channel (inner diameter is 1-3 mm) for the flow of magnetorheological fluid is provided on the fixed magnetic conductor 1.3.7; an annular groove is arranged on the outer periphery of the fixed magnetic conductor 1.3.7; the injection-molded excitation coil 1.3.3 is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the cylinder and is connected to the controller; a power supply connected to the wire is arranged in the controller; the force-bearing disc 1.3.8 is movably arranged in the cylinder and is located between the fixed magnetic conductor 1.3.7 and the upper end cover; one end of the force-bearing rod 1.3.4 is connected to the force-bearing disc 1.3.8, and the other end penetrates through the upper end cover and is connected to the top plate 1.2; the airbag 1.3.5 is arranged at one end of the cylinder far from the force-bearing rod 1.3.4 and is connected to the lower end cover; the lower end cover is connected to the bottom plate 1.1 through a mounting support.

[0059] In addition, different from Embodiment 1, each group of single-rod fixed magnetic conductor structures is provided with a set of elastic damping members 1.4, and the die spring in the elastic damping members 1.4 is sleeved on the outside of the single-rod fixed magnetic conductor structure.

[0060] The working principle when the magnetorheological damping assembly 1.3 is a single-rod fixed magnetic conductor structure is as follows:

[0061] After the force-bearing rod 1.3.4 is subjected to a downward pressure, it drives the force-bearing disc 1.3.8 to press down the magnetorheological fluid. After the magnetorheological fluid is squeezed, it flows through the channel. Due to the small inner diameter of the channel, when the magnetorheological fluid is pressured to flow, it will be subject to resistance; at the same time, the controller inputs current to the injection-molded excitation coil 1.3.3, generating a magnetic field around the fixed magnetic conductor 1.3.7, causing the magnetorheological fluid to change from a Newtonian fluid with low viscosity to a Bingham fluid with high viscosity and low fluidity, increasing the flow damping force, and the damping force changes with the change of current; the airbag 1.3.5 has a compressible space and resilience, providing the possibility for the downward pressure and reset of the force-bearing disc 1.3.8 and the force-bearing rod 1.3.4.

[0062] Embodiment 4:

[0063] See Figure 5, different from Embodiment 1, the magnetorheological damping assembly 1.3 is a fixed magnetic conductor universal force-bearing structure, which includes a cylinder block assembly 1.3.1, a fixed magnetic conductor 1.3.7, an injection-molded excitation coil 1.3.3, a force-bearing rod 1.3.4, a connecting part 1.3.9 and an airbag 1.3.5; the cylinder block assembly 1.3.1 is arranged on the bottom plate 1.1 through a mounting bracket, and it includes a cylinder barrel, an upper elastic member 1.3.10 (specifically a rubber block, and an accommodating cavity communicating with the cylinder barrel is provided in the rubber block) arranged at one end of the cylinder barrel, and a lower end cover arranged at the other end of the cylinder barrel; magnetorheological fluid is filled in the cylinder barrel; the fixed magnetic conductor 1.3.7 is fixedly arranged in the cylinder barrel, and a channel (inner diameter is 1-3 mm) for the flow of magnetorheological fluid is provided on the fixed magnetic conductor 1.3.7; an annular groove is arranged on the outer periphery of the fixed magnetic conductor 1.3.7; the injection-molded excitation coil 1.3.3 is arranged in the annular groove and is connected to the controller through a wire; the wire penetrates through the cylinder barrel and is connected to the controller; a power supply connected to the wire is arranged in the controller; the connecting part 1.3.9 is movably arranged in the cylinder barrel and is located between the fixed magnetic conductor 1.3.7 and the upper elastic member 1.3.10; the connecting part 1.3.9 is a frustum structure, which includes a large-diameter end facing the fixed magnetic conductor 1.3.7 and a small-diameter end facing the upper elastic member 1.3.10; one end of the force-bearing rod 1.3.4 is connected to the large-diameter end of the connecting part 1.3.9, and the other end penetrates through the upper elastic member 1.3.10 and is connected to the top plate 1.2; an elastic sleeve (specifically a rubber sleeve) is arranged outside the upper elastic member 1.3.10 to protect the upper elastic member 1.3.10 and prevent magnetorheological fluid from leaking; the airbag 1.3.5 is arranged at one end of the cylinder barrel far from the force-bearing rod 1.3.4 and is connected to the lower end cover; the cylinder barrel is connected to the bottom plate 1.1 through a mounting bracket.

[0064] The working principle when the magnetorheological damping assembly 1.3 is a fixed magnetic conductor universal force-bearing structure is as follows:

[0065] After the force-bearing rod 1.3.4 is subjected to downward pressures from all directions, it drives the connecting part 1.3.9 to press down the magnetorheological fluid. After the magnetorheological fluid is squeezed, it flows through the channel. Since the inner diameter of the channel is small, when the magnetorheological fluid is pressured to flow, it will encounter resistance. At the same time, the controller inputs current to the injection molding excitation coil 1.3.3, generating a magnetic field around the fixed magnetic conductor 1.3.7, causing the magnetorheological fluid to change from a Newtonian fluid with low viscosity to a Bingham fluid with high viscosity and low fluidity, increasing the flow damping force, and as the current changes, the damping force changes. The airbag 1.3.5 has a compressible space and resilience, providing the possibility for the downward pressure and reset of the force-bearing disc 1.3.8 and the force-bearing rod 1.3.4. In addition, the connecting part 1.3.9 is set as a frustum structure, with the large-diameter end facing the fixed magnetic conductor 1.3.7 and the small-diameter end facing the upper elastic component 1.3.10, facilitating the extrusion of the magnetorheological fluid to flow in all directions of downward pressure, ensuring the generation of damping force.

[0066] Embodiment 5:

[0067] See Figure 6 , different from Embodiment 1, the vibration damping regulation component 2 includes a controller and two acceleration sensors 2.1. The controller is arranged on the top plate 1.2 or the bottom plate 1.1 and is electrically connected to the magnetorheological vibration damping component 1.3. Among them, one acceleration sensor 2.1 is arranged on the top plate 1.2, and the other acceleration sensor 2.1 is arranged on the bottom plate 1.1, and both acceleration sensors 2.1 are connected to the controller through data transmission lines.

[0068] The vibration damping method of the vibration equipment damping system includes:

[0069] Step S1, the vibration equipment operates to provide a vibration source for the vibration damping mechanism 1 and the vibration damping regulation component 2 through the top plate 1.2;

[0070] Step S2, the acceleration sensor 2.1 arranged on the top plate 1.2 detects the acceleration signal of the vibration source, and the acquired acceleration signal is integrated in time through the data processing module in the controller to obtain the unsprung speed V 1 ; the acceleration sensor 2.1 arranged on the bottom plate 1.1 detects the acceleration signal of the vibration source, and the acquired acceleration signal is integrated in time through the data processing module in the controller to obtain the sprung speed V 2 ; through the skyhook control algorithm, judge the speed relationship between V 1 and V 2 , control the current magnitude, thereby controlling the damping force magnitude;

[0071] The skyhook control algorithm is as follows:

[0072]

[0073] Among them, I represents current. I = 1 means that current is applied to the injection-molded excitation coil 1.3.3; I = 0 means that the application of current to the injection-molded excitation coil 1.3.3 is stopped.

[0074] When V 1 and V 2 -V 1 have the same velocity direction, the controller increases the current supplied to the injection-molded excitation coil 1.3.3 to make the damping force larger; when V 1 and V 2 -V 1 have the same velocity direction, and the absolute value of V 2 -V 1 is larger, the controller continuously increases the current supplied to the injection-molded excitation coil 1.3.3 to make the damping force larger; when V 1 and V 2 -V 1 have the same velocity direction, and the absolute value of V 2 -V 1 is smaller, the controller continuously decreases the current supplied to the injection-molded excitation coil 1.3.3 to make the damping force smaller; when V 1 and V 2 -V 1 have opposite velocity directions, the current supplied by the controller to the injection-molded excitation coil 1.3.3 is zero, making the damping force zero.

[0075] Therefore, the damping reduction method of the vibration equipment damping reduction system provided by Embodiment 5 can achieve a continuously variable and controllable level of the damping reduction force.

[0076] Embodiment 6:

[0077] Referring to Figure 7 , different from Embodiment 1, the damping reduction regulation component 2 includes a controller, an acceleration sensor 2.1 and a displacement sensor 2.2. The controller is arranged on the top plate 1.2 or the bottom plate 1.1 and is electrically connected to the linear magnetorheological damping reduction component 1.3; the acceleration sensor 2.1 is arranged on the top plate 1.2 and is connected to the controller through a data transmission line; one end of the displacement sensor 2.2 is connected to the top plate 1.2, and the other end is connected to the bottom plate 1.1 and is connected to the controller through a data transmission line.

[0078] The damping reduction method of the vibration equipment damping reduction system includes:

[0079] Step S1, the vibration equipment operates to provide a vibration source for the damping reduction mechanism 1 and the damping reduction regulation component 2 through the top plate 1.2;

[0080] Step S2: The acceleration sensor 2.1 provided on the top plate 1.2 detects the acceleration signal of the vibration source, and the acquired acceleration signal is integrated in time through the data processing module in the controller to obtain the unsprung velocity V 1 ; The displacement sensor 2.2 detects the relative displacement signal between the vibration source and the vibration damping mechanism 1, and the acquired relative displacement is differentiated with respect to time through the data processing module in the controller to obtain the relative velocity (V 2 -V 1 ) of the vibration damping mechanism 1; Through the skyhook control algorithm, the velocity relationship between V 1 and V 2 is judged, and the current magnitude is controlled, thereby controlling the damping force magnitude;

[0081] The skyhook control algorithm is as follows:

[0082]

[0083] Wherein, I represents the current, I = 1 means passing current through the injection molding excitation coil 1.3.3; I = 0 means stopping passing current through the injection molding excitation coil 1.3.3;

[0084] When the velocity directions of V 1 and V 2 -V 1 are the same, the controller increases the current delivered to the injection molding excitation coil 1.3.3 to make the damping force larger; When the velocity directions of V 1 and V 2 -V 1 are the same, and the absolute value of V 2 -V 1 is larger, continuously increase the current delivered by the controller to the injection molding excitation coil 1.3.3 to make the damping force larger; When the velocity directions of V 1 and V 2 -V 1 are the same, and the absolute value of V 2 -V 1 is smaller, continuously decrease the current delivered by the controller to the injection molding excitation coil 1.3.3 to make the damping force smaller; When the velocity directions of V 1 and V 2 -V 1 are opposite, the current delivered by the controller to the injection molding excitation coil 1.3.3 is zero, making the damping force zero.

[0085] Therefore, the vibration damping method of the vibration equipment damping system provided by Embodiment 6 can achieve a controllable level of continuously changing the vibration damping force magnitude.

[0086] Embodiment 7:

[0087] SeeFigure 8 , different from Embodiment 1, the vibration damping control assembly 2 includes a controller and a displacement sensor 2.2. The controller is disposed on the top plate 1.2 or the bottom plate 1.1 and is electrically connected to the linear magnetorheological damping assembly 1.3. One end of the displacement sensor 2.2 is connected to the top plate 1.2, and the other end is connected to the bottom plate 1.1 and is connected to the controller through a data transmission line.

[0088] The vibration damping method of the vibration equipment damping system includes:

[0089] Step S1, the operation of the vibration equipment provides a vibration source for the damping mechanism 1 and the vibration damping control assembly 2 through the top plate 1.2;

[0090] Step S2, the displacement sensor 2.2 detects the displacement signal between the vibration source and the damping mechanism 1, and the relative displacement collected is differentiated with respect to time by the data processing module in the controller to obtain the relative speed of the seat body;

[0091] When the relative speed is positive and increasing, it means that the magnetorheological damping assembly 1.3 is in a tensile state and will continue to stretch. The controller increases the current supplied to the injection molding excitation coil 1.3.3 to increase the damping force and reduce the vibration;

[0092] When the relative speed is positive and decreasing, it means that the magnetorheological damping assembly 1.3 is in a tensile state and will slow down the stretching. The controller reduces the current supplied to the injection molding excitation coil 1.3.3 to reduce the damping force, so that the magnetorheological damping assembly 1.3 smoothly changes from stretching to compression and reduces the vibration;

[0093] When the relative speed is negative and increasing, it means that the magnetorheological damping assembly 1.3 is in a compression state and will reduce the compression. The controller increases the current supplied to the injection molding excitation coil 1.3.3 to increase the damping force and avoid sudden changes in the vibration direction causing hard collisions of the magnetorheological damping assembly 1.3;

[0094] When the relative speed is negative and decreasing, it means that the magnetorheological damping assembly 1.3 is in a compression state and will continue to compress. The controller reduces the current to reduce the damping force, allowing the magnetorheological damping assembly 1.3 to move downward smoothly and reducing the vibration.

[0095] Therefore, the vibration damping method of the vibration equipment damping system provided by Embodiment 7 can achieve a continuously variable and controllable level of vibration damping force.

[0096] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vibration reduction system for a vibrating device, characterized in that: It comprises a vibration reduction mechanism (1) and a vibration reduction control component (2); The vibration reduction mechanism (1) comprises a bottom plate (1.1), a top plate (1.2) and a magnetorheological vibration reduction assembly (1.3); the top plate (1.2) and the bottom plate (1.1) are arranged opposite to each other up and down, and the vibration device is arranged on the top plate (1.2); one end of the magnetorheological vibration reduction assembly (1.3) is connected to the top plate (1.2), and the other end is connected to the bottom plate (1.1); The vibration reduction and regulation component (2) comprises a controller and an acceleration sensor (2.1); the controller is arranged on the top plate (1.2) or the bottom plate (1.1) and is electrically connected to the magnetorheological vibration reduction component (1.3); the acceleration sensor (2.1) is arranged on the top plate (1.2) and is connected to the controller via a data transmission line.

2. A vibration reduction system for a vibration equipment, characterized in that: It comprises a vibration reduction mechanism (1) and a vibration reduction control component (2); The vibration reduction mechanism (1) comprises a bottom plate (1.1), a top plate (1.2) and a magnetorheological vibration reduction assembly (1.3); the top plate (1.2) and the bottom plate (1.1) are arranged opposite to each other up and down, and the vibration device is arranged on the top plate (1.2); one end of the magnetorheological vibration reduction assembly (1.3) is connected to the top plate (1.2), and the other end is connected to the bottom plate (1.1); The vibration reduction and control component (2) comprises a controller and two acceleration sensors (2.1); the controller is arranged on the top plate (1.2) or the bottom plate (1.1) and is electrically connected to the magnetorheological vibration reduction component (1.3); wherein one acceleration sensor (2.1) is arranged on the top plate (1.2), the other acceleration sensor (2.1) is arranged on the bottom plate (1.1), and both acceleration sensors (2.1) are connected to the controller via a data transmission line.

3. A vibration reduction system for a vibration equipment, characterized in that: It comprises a vibration reduction mechanism (1) and a vibration reduction control component (2); The vibration reduction mechanism (1) comprises a bottom plate (1.1), a top plate (1.2) and a magnetorheological vibration reduction assembly (1.3); the top plate (1.2) and the bottom plate (1.1) are arranged opposite to each other up and down, and the vibration device is arranged on the top plate (1.2); one end of the magnetorheological vibration reduction assembly (1.3) is connected to the top plate (1.2), and the other end is connected to the bottom plate (1.1); The vibration reduction and control component (2) comprises a controller, an acceleration sensor (2.1) and a displacement sensor (2.2); the controller is arranged on the top plate (1.2) or on the bottom plate (1.1) and is electrically connected to the magnetorheological vibration reduction component (1.3); the acceleration sensor (2.1) is arranged on the top plate (1.2) and is connected to the controller via a data transmission line; one end of the displacement sensor (2.2) is connected to the top plate (1.2) and the other end is connected to the bottom plate (1.1), and is connected to the controller via a data transmission line.

4. A vibration reduction system for a vibration device, characterized in that: It comprises a vibration reduction mechanism (1) and a vibration reduction control component (2); The vibration reduction mechanism (1) comprises a bottom plate (1.1), a top plate (1.2) and a magnetorheological vibration reduction assembly (1.3); the top plate (1.2) and the bottom plate (1.1) are arranged opposite to each other up and down, and the vibration device is arranged on the top plate (1.2); one end of the magnetorheological vibration reduction assembly (1.3) is connected to the top plate (1.2), and the other end is connected to the bottom plate (1.1); The vibration reduction and regulation component (2) comprises a controller and a displacement sensor (2.2); the controller is arranged on the top plate (1.2) or the bottom plate (1.1) and is electrically connected to the magnetorheological vibration reduction component (1.3); one end of the displacement sensor (2.2) is connected to the top plate (1.2), while the other end is connected to the bottom plate (1.1), and is connected to the controller via a data transmission line.

5. The vibration reduction system for vibration equipment according to any one of claims 1 to 4, characterized in that: The magnetorheological vibration reduction component (1.3) is a single-rod movable magnetizer structure, which includes a cylinder assembly (1.3.1), a movable magnetizer (1.3.2), an injection-molded excitation coil (1.3.3), a force-bearing rod (1.3.4) and an airbag (1.3.5); the cylinder assembly (1.3.1) is arranged on a base plate (1.1), and includes a cylinder, an upper end cover arranged at one end of the cylinder, and a lower end cover arranged at the other end of the cylinder; the cylinder is filled with magnetorheological fluid; the movable magnetizer (1.3.2) is slidably arranged in the cylinder, and a gap for the circulation of magnetorheological fluid is provided between the movable magnetizer (1.3.2) and the inner wall of the cylinder; the movable magnetizer (1.3.2) is provided with a gap for the circulation of magnetorheological fluid; the movable magnetizer (1.3.4) is provided with a gap between the movable magnetizer (1.3.4) and the inner wall of the cylinder; the movable magnetizer (1.3.5) is provided with a gap for the circulation of magnetorheological fluid; the movable magnetizer (1.3.5) is provided with a gap between the movable magnetizer (1.3.5) and the inner wall of the cylinder ... 3.2); the injection molding excitation coil (1.3.3) is arranged in the annular groove and is connected to the controller through a wire; the wire passes through the force-bearing rod (1.3.4) and is connected to the controller; a power supply connected to the wire is arranged in the controller; one end of the force-bearing rod (1.3.4) is connected to the movable magnetizer (1.3.2), and the other end passes through the upper end cover and is connected to the top plate (1.2); the airbag (1.3.5) is arranged on one end of the cylinder away from the force-bearing rod (1.3.4) and is connected to the lower end cover; the lower end cover is connected to the bottom plate (1.1).

6. The vibration reduction system for vibration equipment according to any one of claims 1 to 4, characterized in that: The magnetorheological vibration reduction component (1.3) is a double-rod movable magnet structure, which includes a cylinder assembly (1.3.1), a movable magnet (1.3.2), an injection-molded excitation coil (1.3.3), a force-bearing rod (1.3.4) and a driven rod (1.3.6); the cylinder assembly (1.3.1) is arranged on a base plate (1.1), and includes a cylinder, an upper end cover arranged at one end of the cylinder and a lower end cover arranged at the other end of the cylinder; magnetorheological fluid is filled in the cylinder; the movable magnet (1.3.2) is slidably arranged in the cylinder, and a gap for the circulation of magnetorheological fluid is provided between the movable magnet (1.3.2) and the inner wall of the cylinder; a magnetorheological fluid is provided on the outer periphery of the movable magnet (1.3.2); annular groove; the injection molding excitation coil (1.3.3) is arranged in the annular groove and is connected to the controller through a wire; the wire passes through the force-bearing rod (1.3.4) and is connected to the controller; a power supply connected to the wire is arranged in the controller; one end of the force-bearing rod (1.3.4) is connected to the movable magnetizer (1.3.2), and the other end passes through the upper end cover and is connected to the top plate (1.2); one end of the driven rod (1.3.6) is connected to one end of the movable magnetizer (1.3.2) away from the force-bearing rod (1.3.4), and the other end can slide through the lower end cover; the lower end cover is connected to the bottom plate (1.1).

7. The vibration reduction system for vibration equipment according to any one of claims 1 to 4, characterized in that: The magnetorheological vibration reduction component (1.3) is a single-rod fixed magnetizer structure, which includes a cylinder assembly (1.3.1), a fixed magnetizer (1.3.7), an injection-molded excitation coil (1.3.3), a force-bearing rod (1.3.4), a force-bearing disk (1.3.8) and an airbag (1.3.5); the cylinder assembly (1.3.1) is arranged on a base plate (1.1), and includes a cylinder, an upper end cover arranged at one end of the cylinder, and a lower end cover arranged at the other end of the cylinder; a magnetorheological fluid is filled in the cylinder; the fixed magnetizer (1.3.7) is fixedly arranged in the cylinder, and a channel for the circulation of the magnetorheological fluid is arranged on the fixed magnetizer (1.3.7); an annular ring is arranged on the outer periphery of the fixed magnetizer (1.3.7); groove; the injection molding excitation coil (1.3.3) is arranged in the annular groove and is connected to the controller through a wire; the wire passes through the cylinder and is connected to the controller; a power supply connected to the wire is arranged in the controller; the force disk (1.3.8) is movably arranged in the cylinder and is located between the fixed magnetic conductor (1.3.7) and the upper end cover; one end of the force rod (1.3.4) is connected to the force disk (1.3.8), and the other end passes through the upper end cover and is connected to the top plate (1.2); the airbag (1.3.5) is arranged on one end of the cylinder away from the force rod (1.3.4) and is connected to the lower end cover; the lower end cover is connected to the bottom plate (1.1).

8. The vibration reduction system for vibration equipment according to any one of claims 1 to 4, characterized in that: The magnetorheological vibration reduction component (1.3) is a fixed magnetorheological universal force-bearing structure, which includes a cylinder assembly (1.3.1), a fixed magnetor (1.3.7), an injection-molded excitation coil (1.3.3), a force-bearing rod (1.3.4), a connecting part (1.3.9) and an airbag (1.3.5); the cylinder assembly (1.3.1) is arranged on a base plate (1.1), and includes a cylinder, an upper elastic component (1.3.10) arranged at one end of the cylinder and a lower end cover arranged at the other end of the cylinder; a magnetorheological fluid is filled in the cylinder; the fixed magnetorheological body (1.3.7) is fixedly arranged in the cylinder, and a channel for the circulation of the magnetorheological fluid is arranged on the fixed magnetorheological body (1.3.7); an annular groove is arranged on the outer periphery of the fixed magnetorheological body (1.3.7); the injection-molded excitation coil (1.3.3) is arranged in the annular groove and is connected to the controller via a wire; The wire passes through the cylinder and is connected to the controller; a power source connected to the wire is arranged in the controller; the connecting part (1.3.9) is movably arranged in the cylinder and is located between the fixed magnetizer (1.3.7) and the upper elastic component (1.3.10); the connecting part (1.3.9) is a truncated cone structure, which includes a large diameter end arranged opposite to the fixed magnetizer (1.3.7) and a small diameter end arranged opposite to the upper elastic component (1.3.10); one end of the force-bearing rod (1.3.4) is connected to the large diameter end of the connecting part (1.3.9), and the other end passes through the upper elastic component (1.3.10) and is connected to the top plate (1.2); the airbag (1.3.5) is arranged on one end of the cylinder away from the force-bearing rod (1.3.4) and is connected to the lower end cover; the cylinder is connected to the bottom plate (1.1).

9. The vibration reduction system for vibration equipment according to any one of claims 1 to 4, characterized in that: The vibration damping mechanism (1) further comprises elastic vibration damping components (1.4), the elastic vibration damping components (1.4) comprising a plurality of groups, and all of the groups are arranged between the top plate (1.2) and the bottom plate (1.1); each group of the elastic vibration damping components (1.4) comprises an upper connecting block connected to the top plate (1.2), a lower connecting block connected to the bottom plate (1.1), and a mold spring arranged between the upper connecting block and the lower connecting block.

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