CN109249311B

CN109249311B - Electric control roller vibration damper with improved inertia capacity

Info

Publication number: CN109249311B
Application number: CN201811195942.4A
Authority: CN
Inventors: 付柯; 李鹤; 邓鹏飞
Original assignee: Northeastern University China
Current assignee: Northeastern University China
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2020-06-05
Anticipated expiration: 2038-10-15
Also published as: CN109249311A

Abstract

The invention discloses an electric control roller vibration damping device with an improved inertial volume, which comprises: the device comprises a base, a supporting platform, an inerter system and a spring-damping system, wherein the middle part of the supporting platform is connected with a vibration damping box body in a sliding way through a slideway, the other end of the supporting platform is connected with an inner support in a sliding way through a slideway, the top end of the inner support is provided with a double-roller support frame, the double-roller support frame comprises a supporting plate at the middle part, a lateral guide plate and support pieces which are distributed circumferentially, contact rollers are symmetrically and rotatably arranged between the outer ends of the support pieces, and the spring-damping system and the inerter system are sequentially arranged; the spring-damping system provides elasticity and continuously adjustable damping, the elasticity parameter and the damping parameter are respectively set, the inertial capacitance system increases the response effect of the system to vibration acceleration, the vibration damping effect is good, the analytic solution is easy to obtain, the theoretical basis can be obtained on the design parameter, the rotation of the symmetrical contact roller replaces the direct friction, the reliability and the stability are good, and the operation cost and the complexity of the processing technology are reduced.

Description

Electric control roller vibration damper with improved inertia capacity

Technical Field

The invention relates to the technical field of grinding processing, in particular to an electric control roller vibration damping device with an improved inertia capacity.

Background

In the roll grinding process, grinding chatter is a very harmful phenomenon in roll machining, which directly impairs the improvement of machining quality and production efficiency. The grinding process is always an unstable process, and the grinding vibration exists all the time and gradually increases along with the prolonging of the grinding time. At the beginning of grinding, even if vibration of other factors is not generated, the grinding wheel generates alternating force due to uneven hardness and uneven wear, and the grinding wheel also generates grinding chatter due to the regeneration effect of the grinding wheel. According to the research, the roller has large mass and large volume, and the vibration amplitude is not as obvious as the reaction of a grinding wheel when the vibration occurs, so the difficulty in observing the vibration quantity of the roller is high, but due to the mass and volume factors, proper time is often missed when the vibration is reduced after the vibration of the obvious vibration quantity occurs, and the grinding quality is not ideal.

The prior art solutions for damping the roll have generally used external damping devices, for example, patent CN03816813.8 from elwen-pockels machine manufacturing ltd, germany, proposes grinding a rotating roll by means of a resilient strut, since the roll tends to oscillate transversely by contact with a grinding wheel, so that a pad is arranged on the side of the roll opposite the grinding wheel, which pad bears pneumatically against the roll and partially matches the profile of the roll. The cushion body is made of an elastic solid material or an elastic jacket filled with an elastic pressure medium. The abutting force of the pad is adjustable. For this purpose, a pneumatic thrust cylinder is provided on the base, which has a piston that can be acted upon on both sides, and a fastening plate, which includes an elastic pad, is mounted on the piston rod of the piston. The thrust cylinder is connected to the compressed air pipe, whereby a vibration damping device is formed to suppress so-called regenerative chatter and to ensure a chatter mark-free grinding process.

For the roller vibration damping device in the prior art, the following defects generally exist: 1. the execution element is made of an elastic material with obvious nonlinear characteristics and a pneumatic thrust cylinder combination, the control difficulty is high, the calculated amount is increased and the analytic solution of the elastic material is not necessarily obtained due to the nonlinear characteristics of the elastic material, and although the pneumatic thrust cylinder has high reaction speed, the requirements on thrust and stability for heavy-duty roller grinding are placed at the top; 2. the roller is contacted in a semi-wrapping and friction mode, so that a certain influence is exerted on the roller, the contact area is large, in order to reduce sliding friction, a more complex lubricating system is added, the consumption of lubricating liquid is increased by uninterrupted lubrication, the cost and the process requirement are high, and the national strategic concept of energy conservation and environmental protection is not met; 3. the elastic material is easily affected by the environment, the due effect of the elastic material cannot be guaranteed to be exerted, the aging problem and the corrosion problem of the elastic material cannot be avoided, and the reliability of the elastic material in practical application is not ideal enough.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

The invention also aims to provide an electric control roller vibration damping device with an improved inertia capacity, an elastic element is adopted to replace the elastic force of an elastic material, a damping element is adopted to replace the damping force of the elastic material, the elastic force parameter and the damping force parameter are respectively set, an improved inertia capacity system is added, the response effect of the system to the vibration acceleration is increased, the vibration damping effect is good, the resolution is easy to obtain, a theoretical basis can be obtained on the design parameters, a group of symmetrical contact rollers are adopted to replace the elastic material with a semi-wrapping structure, the rotation of a central bearing replaces the direct friction, the reliability and the stability are good, a complex lubricating system is not needed, the running cost and the complexity of a processing process are reduced, and the problems in the background technology are solved.

To achieve these objects and other advantages in accordance with the purpose of the invention, an electronically controlled roll damping device with an improved inertia is provided, the solution being as follows:

the electric control roller vibration damping device with the improved inertia capacity comprises a base 1, wherein two parallel square grooves are arranged in the base 1, and an active sliding seat 7 and a passive sliding seat 32 which can slide along the square grooves are respectively arranged in the square grooves;

the supporting table 8 is arranged right above the base 1, the supporting table 8 is respectively and fixedly connected with the driving slide seat 7 and the driven slide seat 32 through a vertical moving support 40 and a triangular support 33, the bottom edge of the triangular support 33 is parallel to the supporting table 8 and is fixed on the bottom surface of the supporting table 8, one end of the supporting table 8 is fixedly provided with a hydraulic element 9, the upper surface of the supporting table 8 is provided with a slide way 10, the middle part of the supporting table 8 is slidably connected with a damping box body 11 through the slide way 10, the movable end of the hydraulic element 9 is fixedly connected with the damping box body 11, the other end of the supporting table 8 is slidably connected with an inner support 12 through the slide way 10, the top end of the inner support 12 is provided with a double-roller support frame 13, the double-roller support frame 13 comprises a supporting plate 14 at the middle part, side guide plates 15 and supporting plates, the side guide plate 15 is in sliding fit with the side face of the vibration damping box body 11, the support pieces 16 are symmetrically arranged on two sides of the other end of the support plate 14, and contact rollers 17 are symmetrically and rotatably arranged between the outer ends of the support pieces 16;

the inertial container system 18 is arranged on one side of the vibration reduction box body 11 close to the double-roller support frame 13, the inertial container system 18 comprises a group of fixed nodes 19, a micro-displacement amplification mechanism 20 and a counterweight unit 21 which are fixed on the vibration reduction box body 11, the micro-displacement amplification mechanism 20 is symmetrically composed of a stress rod 22, a first-stage amplification rod frame 23, a second-stage amplification rod frame 24 and a tail end rod frame 25, the stress rod 22, the first-stage amplification rod frame 23, the second-stage amplification rod frame 24 and the tail end rod frame 25 are respectively connected through flexible hinges 26, the fixed nodes 19 are respectively fixedly connected with one end of the first-stage amplification rod frame 23 and one end of the second-stage amplification rod frame 24, and the counterweight unit 21 is arranged on the tail end rod frame 25;

the spring-damping system 27 is arranged on one side of the vibration damping box body 11 close to the hydraulic component 9, the spring-damping system 27 comprises a damping component 28, a group of elastic components 29 which are symmetrically arranged, and a guide rod 30 which is coaxial with the elastic components 29, one end of the spring-damping system 27 is arranged on the inner side of the vibration damping box body 11, and the other end of the spring-damping system 27 is connected with the outer surface of the counterweight unit 21.

A first square groove 2 and a second square groove 3 are respectively formed in two sides of the base 1, the top end of the first square groove 2 is connected with a servo motor 4 mounted on the side wall of the base 1, a driving screw rod 5 is rotatably mounted in the middle of the first square groove 2, one end of the driving screw rod 5 is connected with the servo motor 4 and driven by the servo motor 4, first slide bars 6 are symmetrically arranged on two sides of the driving screw rod 5, an active slide seat 7 in threaded fit with the driving screw rod 5 is arranged in the middle of the driving screw rod 5, and two sides of the active slide seat 7 are in sliding fit with the first slide bars 6;

a second sliding rod 31 is fixed in the middle of the second square groove 3, a driven sliding seat 32 matched with the second square groove 3 is connected in the middle of the second sliding rod 31 in a sliding mode, a triangular support frame 33 with an inverted isosceles triangle shape is fixed on the driven sliding seat 32, and the bottom edge of the triangular support frame 33 is parallel to the supporting table 8 and is fixed on the bottom surface of the supporting table 8.

The inner support 12 is in an inverted T shape, the top end of the inner support 12 is fixedly connected with the bottom surface of the support plate 14, the plane where the support plate 14 is located is parallel to the support table 8, the middle part of the stress rod 22 is in clamping fit with the support plate 14 of the double-roller support frame 13, and the support pieces 16 are in two isosceles triangle structures with the same bottom side nested.

Contact roller 17 includes central bearing 34, gyro wheel body 35, elastic layer 36, central bearing 34 adopts the cylindrical roller bearing, central bearing 34 is located on the axis of gyro wheel body 35, the middle part of gyro wheel body 35 is symmetrical hollow out construction, the elastic layer 36 cladding is at the surface of gyro wheel body 35, elastic layer 36 is high wear-resisting rubber, the thickness of elastic layer 36 is no longer than 1/5 of gyro wheel body 35 diameter.

The middle part of base 1 is equipped with control box 37, damper controller 38 and PLC39 are built-in to control box 37, damper controller 38 is a current control ware according to pulse width modulation integrated circuit, pass through circuit connection between damper controller 38 and the damping element 28, pass through circuit connection between PLC39 and hydraulic component 9, the servo motor 4.

The magnification of the micro-displacement amplifying mechanism is set by adjusting the distance between the flexible hinge 26 and the contact point between the first-stage amplifying rod support 23 and the second-stage amplifying rod support 24.

The damping element 28 is a magnetorheological damper.

The balance vibration absorption method comprises the following steps: when the roll grinder is started, the grinding wheel and the roll are respectively started to normal rotating speed, the PLC39 is used for respectively starting the hydraulic element 9 and the servo motor 4, the servo motor 4 drives the driving screw rod 5 to rotate, the driving slide seat 7 in the first square groove 2 moves along the direction of the driving screw rod 5, the hydraulic component 9 controls the damping box body 11, the double-roller support frame 13 and the contact roller 17 to move towards the roller direction by taking the standard that the support table 8 connected with the active slide seat 7 through the movable support frame 40 and the grinding wheel are positioned on the same horizontal plane, the contact roller 17 is in contact with the roller and applies positive pressure to the surface of the roller as a standard, the contact roller 17 rotates around a central axis by using a central bearing 34, an elastic layer 36 on the outer surface of the contact roller 17 and the roller play roles of buffering and increasing static friction force to prevent slipping, and the linear speed of the outer surface of the contact roller 17 is equal to that of the outer surface of the roller;

the roller can vibrate under the action of time lag, because the roller has large volume and large mass, the amplitude of the vibration is often very small but is difficult to eliminate at the same time, the surface of the roller transmits the amplitude of the vibration to the damping box body 11 through the contact roller 17 and the double-roller support frame 13 through the stress rod 22, the vibration quantity of the roller is mainly reduced through the damping box body 11, after the stress rod 22 receives the vibration amplitude, the amplitude is amplified by a set multiple through the micro-displacement amplifying mechanism 20, the set multiple is 12 times, and the amplification multiple setting method is to respectively adjust the contact points between the flexible hinge 26 and the first-stage amplifying rod frame 23 and the second-stage amplifying rod frame 24;

the amplitude is output at the tail end of the micro-displacement amplifying mechanism 20, namely the counterweight unit 21, the improved inerter system 18 formed by the counterweight unit 21 and the micro-displacement amplifying mechanism 20 conforms to the definition of an inerter, and can play the effect of the inerter, the inerter is a newly emerging mechanical vibration isolation element and mainly responds to the inertia and the acceleration of a mechanical system, to achieve the effect of vibration isolation, the weight unit 21 is simultaneously connected with the spring-damper system 27, the displacement of the elastic element 29 in response to the vibration of the mechanical system is damped, the counterweight unit 21 is guided by the guide rod 30 to move in the horizontal direction, the damping element 28 is used for responding to the vibration speed of the mechanical system to damp vibration, the inertial volume system 18, the elastic element 29 and the damping element 28 are used in a combined mode, the vibration damping effect on the roller is enhanced, the damping element 28 is a magneto-rheological damper, and the damping coefficient can be changed through the damper controller 38 according to needs.

The invention at least comprises the following beneficial effects:

1. the elastic element is used for responding and damping vibration of the vibration displacement of the mechanical system, the guide rod is used for guiding the counterweight unit to move along the horizontal direction, the damping element is used for responding and damping vibration of the vibration speed of the mechanical system, the inertial volume system, the elastic element and the damping element are used in a combined mode, the vibration absorption effect on the roller is enhanced, the damping element adopts a magneto-rheological damper, and the damping coefficient can be changed through the damper controller according to needs.

2. The elastic element is adopted to replace the elastic force of the elastic material, the damping element is adopted to replace the damping force of the elastic material, the elastic force parameter and the damping force parameter are respectively set, and an improved inertial capacitance system is added, so that the response effect of the system on the vibration acceleration is increased, the vibration attenuation effect is good, the analytic solution is easy to obtain, and the theoretical basis can be obtained on the design parameters;

3. the inertial container system is a mechanical element improved according to the principle of a gear-rack inertial container, changes the rotation motion of a flywheel into the linear motion of a counterweight unit, changes a multi-stage accelerating gear mechanism into a micro-displacement amplifying mechanism, achieves the same vibration absorption effect as the gear-rack inertial container,

4. the elastic material of a semi-wrapping structure is replaced by a group of symmetrical contact rollers, and the rotation of the central bearing replaces direct friction, so that the friction force is reduced, meanwhile, the contact area is reduced on the premise of ensuring that the vibration quantity in multiple directions can be absorbed, a complex lubricating system is not needed, and the running cost and the complexity of a processing process are reduced;

5. except that the thin elastic layer is adopted to reduce the impact, the mechanical vibration damping system with high reliability is adopted, and the elastic layer is thin, so that the influence caused by the aging problem and the corrosion problem is small, the replacement is convenient, and the cost is low.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a right side schematic view of the present invention;

FIG. 2 is a schematic view of the left side of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic structural diagram of the inerter system.

In the figure: 1. a base; 2. a first square groove; 3. a second square groove; 4. a servo motor; 5. driving the screw rod; 6. a first slide bar; 7. an active slide; 8. a support table; 9. a hydraulic component; 10. a slideway; 11. a vibration damping box body; 12. an inner support; 13. a double-roller support frame; 14. a support plate; 15. a side guide plate; 16. a brace piece; 17. a contact roller; 18. an inertance system; 19. a fixed node; 20. a micro-displacement amplifying mechanism; 21. a counterweight unit; 22. a stress beam; 23. a first-stage amplifying rod frame; 24. a second-stage amplifying rod frame; 25. a terminal rod holder; 26. a flexible hinge; 27. a spring-damper system; 28. a damping element; 29. an elastic element; 30. a guide bar; 31. a second slide bar; 32. a passive slide carriage; 33. a triangular support frame; 34. a center bearing; 35. a roller body; 36. an elastic layer; 37. a control box; 38. a damper controller; 39. a PLC; 40. and moving the support frame.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

According to the drawings of fig. 1-4, the invention provides an electric control roller damping device with an improved inertia capacity, and the technical scheme is as follows:

the method comprises the following steps:

the roll grinder comprises a base 1, wherein relative positions are fixed between the base 1 and a roll grinder, two sides of the base 1 are respectively provided with a first square groove 2 and a second square groove 3, the top end of the first square groove 2 is connected with a servo motor 4 arranged on the side wall of the base 1, the middle part of the first square groove 2 is rotatably provided with a driving screw rod 5, one end of the driving screw rod 5 is connected with the output end of the servo motor 4 and driven by the servo motor 4, two sides of the driving screw rod 5 are symmetrically provided with first slide bars 6, the middle part of the driving screw rod 5 is provided with an active slide seat 7 in threaded fit with the driving screw rod, the servo motor 4 drives the driving screw rod 5 to rotate for adjusting the position of the active slide seat 7, two sides of the active slide seat 7 are in slide fit with the first slide bars 6, the first slide bars 6 play a role in supporting and guiding, the side edges of the active slide seat 7 are matched with, the middle part of the second slide bar 31 is connected with a passive slide seat 32 matched with the second square groove 3 in a sliding manner, the second slide bar 31 plays a role in supporting and guiding the passive slide seat 32, a triangular bracket 33 with an inverted isosceles triangle is fixed on the passive slide seat 32, and the triangular bracket 33 increases the stability of the integral support.

A supporting platform 8 which is arranged right above the base 1, the supporting platform 8 is respectively and fixedly connected with the active slide seat 7 and the passive slide seat 32 through a vertical moving support 40 and a triangular support 33, the bottom edge of the triangular support 33 is parallel to the supporting platform 8 and is fixed on the bottom surface of the supporting platform 8, the triangular support 33 is used for assisting in fixing the supporting platform 8 and reducing the structural instability caused by the cantilever action, one end of the supporting platform 8 is fixedly provided with a hydraulic element 9, the hydraulic element 9 adopts a hydraulic cylinder, the upper surface of the supporting platform 8 is provided with a slide way 10, the middle part of the supporting platform 8 is connected with a damping box body 11 in a sliding way through the slide way 10, the slide way 10 limits the freedom degree of the damping box body 11 to enable the damping box body 11 to move along the direction of the slide way 10, the movable end of the hydraulic element 9 is fixedly connected with the damping box body 11, the hydraulic, the slide way 10 limits the freedom degree of the inner support 12 to enable the inner support 12 to move along the direction of the slide way 10, the inner support 12 is in an inverted T shape, the top end of the inner support 12 is provided with a double-roller support frame 13, the double-roller support frame 13 comprises a support plate 14 in the middle, side guide plates 15 and support frame sheets 16 which are distributed in the circumferential direction, the top end of the inner support 12 is fixedly connected with the bottom surfaces of the support plate 14, the plane where the support plate 14 is located is parallel to the support platform 8, the side guide plates 15 are arranged at one end of the support plate 14, the side guide plates 15 are in sliding fit with the inner wall of the vibration damping box body 11, the support frame sheets 16 are symmetrically arranged at two sides of the other end of the support plate 14, the support frame sheets 16 are in two isosceles triangle structures which are nested with the bottom edges, the structural design of the support frame sheets 16 increases the installation stability, contact rollers 17 are symmetrically and, contact roller 17 includes central bearing 34, roller body 35, elastic layer 36, central bearing 34 adopts cylindrical roller bearing, cylindrical roller bearing's design has kept good rotation effect, central bearing 34 is located on roller body 35's the axis, roller body 35's middle part is symmetrical hollow out construction, the quality that has reduced roller body 35 under the prerequisite of keeping roller body 35 rigidity, elastic layer 36 cladding is at roller body 35's surface, elastic layer 36 is high wear-resisting rubber, elastic layer 36's thickness is no longer than 1/5 of roller body 35 diameter, elastic layer 36 is used for the buffering between contact roller 17 and the roll, reduce and strike.

An inertial container system 18, it is set up in the damping box body 11 near one side of the double-roller strut 13, the inertial container system 18 includes a group of fixed node 19, micro-displacement amplification mechanism 20, counter weight unit 21 fixed on the damping box body 11, the inertial container system 18 is a mechanical element improved according to the principle of the gear-rack inertial container, change the rotary motion of the flywheel into the linear motion of the counter weight unit 21, change the multistage accelerating gear mechanism into the micro-displacement amplification mechanism 20, get up to the same damping effect as the gear-rack inertial container, the micro-displacement amplification mechanism 20 is made up of stress bar 22, first-stage amplification bar frame 23, second-stage amplification bar frame 24, end bar frame 25 symmetrically, the stress bar 22, first-stage amplification bar frame 23, second-stage amplification bar frame 24, end bar frame 25 are connected through the flexible hinge 26 respectively, the fixed node 19 is fixedly connected to one end of the first-stage amplification bar frame 23 and one end of the second-stage amplification bar frame 24 respectively, the middle part of the stress rod 22 is in clamping fit with the support plate 14 of the double-roller support frame 13, and the principle of the micro-displacement amplification mechanism 20 is mentioned in the prior art and utilizes the amplification effect of the swinging of the force arm between the fixed node 19 and the flexible hinge 26; such as the structure disclosed in Chinese patent application No. 201721196367.0 entitled "a micro-displacement multistage amplification mechanism"; the counterweight unit 21 is provided on the end-rod frame 25;

the spring-damping system 27 is arranged on one side, close to the hydraulic component 9, of the vibration reduction box body 11, the spring-damping system 27 comprises a damping component 28, a group of elastic components 29 which are symmetrically arranged, and a guide rod 30 which is coaxial with the elastic components 29, the damping component 28 adopts a magneto-rheological damper, the damping coefficient of the magneto-rheological damper can be adjusted, one end of the spring-damping system 27 is arranged on the inner side of the vibration reduction box body 11, the other end of the spring-damping system 27 is connected with the outer surface of the counterweight unit 21, and the spring-damping system 27 bears the displacement of the counterweight unit 21 and directly controls and reduces the amplitude of the counterweight unit 21.

The middle part of the base 1 is provided with a control box 37, a damper controller 38 and a PLC39 are arranged in the control box 37, the damper controller 38 adopts a current manipulator based on a pulse width modulation integrated circuit (T1494 chip), the damper controller 38 is connected with the damping element 28 through a circuit, and the PLC39 is connected with the hydraulic element 9 and the servo motor 4 through a circuit.

The balance vibration absorption method comprises the following steps:

when the roll grinder is started, the grinding wheel and the roll are respectively started to normal rotating speed, the PLC39 is used for respectively starting the hydraulic element 9 and the servo motor 4, the servo motor 4 drives the driving screw rod 5 to rotate, the driving slide seat 7 in the first square groove 2 moves along the direction of the driving screw rod 5, the hydraulic component 9 controls the damping box body 11, the double-roller support frame 13 and the contact roller 17 to move towards the roller direction by taking the standard that the support table 8 connected with the active slide seat 7 through the movable support frame 40 and the grinding wheel are positioned on the same horizontal plane, the contact roller 17 is in contact with the roller and applies positive pressure to the surface of the roller as a standard, the contact roller 17 rotates around a central axis by using a central bearing 34, an elastic layer 36 on the outer surface of the contact roller 17 and the roller play roles of buffering and increasing static friction force to prevent slipping, and the linear speed of the outer surface of the contact roller 17 is equal to that of the outer surface of the roller;

the roll will shake under the function of time lag, because the volume of the roll is large, the quality is large, the amplitude of the shake is often very small, but it is difficult to eliminate at the same time, the surface of the roll transmits the amplitude of the shake to the damping box 11 through the contact roller 17, double-roller strut 13 through the force bar 22, mainly reduce the shake quantity of the roll through the damping box 11, after the force bar 22 receives the shake amplitude, amplify the amplitude by the magnification mechanism 20 of little displacement and set the multiple, the multiple that this application sets for is 12 times, the magnification sets for the method is to adjust the distance of the contact point between flexible hinge 26 and first-class amplification bar shelf 23, second-class amplification bar shelf 24 separately;

In the traditional roller vibration reduction scheme, an execution element is made of an elastic material with obvious nonlinear characteristics and a pneumatic thrust cylinder combination, the control difficulty is high, the calculated amount is increased and the analytic solution of the elastic material is not necessarily obtained due to the nonlinear characteristics of the elastic material, although the pneumatic thrust cylinder has high reaction speed, but the requirements on the thrust and the stability for heavy-duty roller grinding are put at the beginning, the elastic element 29 is adopted to replace the elastic force of the elastic material, the damping element 28 is adopted to replace the damping force of the elastic material, the elastic force parameter and the damping force parameter are respectively set, because of the use of the magneto-rheological damper, the damping coefficient is continuously adjustable, and the improved inertial volume system 18 is added, the response effect of the system to the vibration acceleration is increased, the vibration attenuation effect is good, and the analytic solution is easy to obtain, theoretical basis can be obtained on design parameters, and the hydraulic element 9 replaces a pneumatic thrust cylinder to increase the stability and reliability of thrust adjustment; in the traditional scheme, a contact part with a roller is in contact with the roller in a semi-wrapping and friction mode, the roller has certain influence and large contact area, a more complex lubricating system is added for reducing sliding friction under the condition, the consumption of lubricating liquid is increased by uninterrupted lubrication, the cost and process requirements are higher, and the strategic idea of national energy conservation and environmental protection is not met; elastic material that the tradition was chooseed for use receives the environmental impact easily, can't guarantee to exert its due effect, and elastic material's ageing problem and corrosion problem are inevitable moreover, and is not ideal enough in practical application's reliability, and this application all adopts the high mechanical damping system of reliability except adopting thin elastic layer 36 to reduce to strike, because elastic layer 36 is thinner, the influence that its ageing problem and corrosion problem caused is less, and it is convenient to change moreover, low cost.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. Automatically controlled roll vibration damper who is used to hold is improved in area, its characterized in that includes:

the device comprises a base (1), wherein two parallel square grooves are arranged in the base (1), and an active sliding seat (7) and a passive sliding seat (32) which can slide along the square grooves are respectively arranged in the square grooves;

the supporting table (8) is arranged right above the base (1), the supporting table (8) is fixedly connected with the driving sliding seat (7) and the driven sliding seat (32) through a vertical moving support frame (40) and a triangular support frame (33) respectively, the bottom edge of the triangular support frame (33) is parallel to the supporting table (8) and is fixed on the bottom surface of the supporting table (8), a hydraulic element (9) is fixedly installed at one end of the supporting table (8), a slide way (10) is arranged on the upper surface of the supporting table (8), a damping box body (11) is connected to the middle of the supporting table (8) in a sliding mode through the slide way (10), the movable end of the hydraulic element (9) is fixedly connected with the damping box body (11), the other end of the supporting table (8) is connected with an inner support frame (12) in a sliding mode through the slide way (10), and a double-roller support, the double-roller support frame (13) comprises a support plate (14) in the middle, side guide plates (15) and support frame pieces (16) which are distributed circumferentially, the side guide plates (15) are arranged at one end of the support plate (14), the side guide plates (15) are in sliding fit with the side face of the vibration reduction box body (11), the support frame pieces (16) are symmetrically arranged at two sides of the other end of the support plate (14), and contact rollers (17) are symmetrically and rotatably arranged between the outer ends of the support frame pieces (16);

the inertial volume system (18) is arranged on one side, close to the double-roller support frame (13), of the vibration reduction box body (11), the inertial volume system (18) comprises a group of fixed nodes (19), a micro-displacement amplification mechanism (20) and a counterweight unit (21), the fixed nodes are fixed on the vibration reduction box body (11), the micro-displacement amplification mechanism (20) is symmetrically composed of a stress rod (22), a primary amplification rod frame (23), a secondary amplification rod frame (24) and a tail end rod frame (25), the stress rod (22), the primary amplification rod frame (23), the secondary amplification rod frame (24) and the tail end rod frame (25) are respectively connected through flexible hinges (26), the fixed nodes (19) are respectively and fixedly connected to one end of the primary amplification rod frame (23) and one end of the secondary amplification rod frame (24), and the counterweight unit (21) is arranged on the tail end rod frame (25);

the spring-damping system (27) is arranged on one side, close to the hydraulic element (9), of the vibration reduction box body (11), the spring-damping system (27) comprises damping elements (28), a group of elastic elements (29) which are symmetrically arranged, and guide rods (30) which are coaxial with the elastic elements (29), one end of the spring-damping system (27) is arranged on the inner side of the vibration reduction box body (11), and the other end of the spring-damping system (27) is connected with the outer surface of the counterweight unit (21).

2. The electrically controlled roll damper with improved inerter of claim 1, wherein: the automatic feeding device is characterized in that a first square groove (2) and a second square groove (3) are respectively formed in two sides of the base (1), the top end of the first square groove (2) is connected with a servo motor (4) installed on the side wall of the base (1), a driving lead screw (5) is rotatably installed in the middle of the first square groove (2), one end of the driving lead screw (5) is connected with the servo motor (4) and driven by the servo motor (4), first slide bars (6) are symmetrically arranged on two sides of the driving lead screw (5), an active slide seat (7) in threaded fit with the driving lead screw (5) is arranged in the middle of the driving lead screw (5), and two sides of the active slide seat (7) are in sliding fit with the first slide bars (6);

second square groove (3) middle part is fixed with second slide bar (31), second slide bar (31) middle part sliding connection have with second square groove (3) assorted passive slide (32), be fixed with on passive slide (32) invert isosceles triangle's triangular bracket (33), the base of triangular bracket (33) is parallel with brace table (8) and is fixed in on the bottom surface of brace table (8).

3. The electrically controlled roll damper with improved inerter of claim 1, wherein: the inner support (12) is in an inverted T shape, the top end of the inner support (12) is fixedly connected with the bottom surface of the support plate (14), the plane where the support plate (14) is located is parallel to the support table (8), the middle of the stress rod (22) is in clamping fit with the support plate (14) of the double-roller support frame (13), and the support pieces (16) are in two isosceles triangle structures nested with the bottom side.

4. The electrically controlled roll damper with improved inerter of claim 1, wherein: contact roller (17) are including center bearing (34), gyro wheel body (35), elastic layer (36), center bearing (34) adopt cylindrical roller bearing, center bearing (34) are located on the axis of gyro wheel body (35), the middle part of gyro wheel body (35) is symmetrical hollow out construction, the surface at gyro wheel body (35) is wrapped in elastic layer (36), elastic layer (36) are high wear-resisting rubber, the thickness of elastic layer (36) is no longer than 1/5 of gyro wheel body (35) diameter.

5. The electrically controlled roll damper with improved inerter of claim 1, wherein: the middle part of the base (1) is provided with a control box (37), a damper controller (38) and a PLC (39) are arranged in the control box (37), the damper controller (38) is a current controller for modulating an integrated circuit according to pulse width, the damper controller (38) is connected with a damping element (28) through a circuit, and the PLC (39) is connected with the hydraulic element (9) and the servo motor (4) through a circuit.

6. The electrically controlled roll damper with improved inerter of claim 1, wherein: the magnification setting method of the micro-displacement amplifying mechanism (20) is to respectively adjust the distance of the flexible hinge (26) and the contact points between the first-stage amplifying rod frame (23) and the second-stage amplifying rod frame (24).

7. The electrically controlled roll damper with improved inerter of claim 1, wherein: the damping element (28) is a magnetorheological damper.