Inerter and friction composite damper

Abstract

The invention relates to the technical field of dampers, in particular to an inerter and friction composite damper which comprises a shell box, guide cylinders are symmetrically inlaid and fixed to the outer wall of one side of the shell box, piston rods are inserted into the guide cylinders, and mounting seats are fixed to the ends, penetrating through the outer portions of the guide cylinders, of the piston rods. Friction damping assemblies corresponding to the piston rods are arranged on the inner walls of the two sides of the shell box, an inerter assembly is arranged on the inner wall of the middle of the shell box, each friction damping assembly comprises end cylinders symmetrically fixed to the inner wall of one side of the shell box, first pistons are arranged on the inner walls of the ends of the end cylinders, and damping springs are arranged on the inner walls, located on the sides of the first pistons, of the end cylinders. The friction damping assembly and the inerter assembly are arranged in the composite damper, in the external stress vibration process of the mounting base at the end of the piston rod, motion resistance is provided for the piston rod through the friction damping assembly, motion energy is consumed and reduced, the displacement acceleration of the inerter assembly is increased in the process, and therefore the energy dissipation capacity of the friction damping structure is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dampers, and in particular to an inertia-friction composite damper. Background Art

[0002] With the development of economy and the improvement of people's understanding of energy dissipation and shock absorption technology, more and more buildings adopt energy dissipation and shock absorption components; friction dampers have gradually gained favor in the design of energy dissipation and shock absorption of building structures in recent years due to their simple structure and excellent hysteresis performance. Dampers are devices that provide resistance to movement and consume movement energy. Various dampers (or shock absorbers) have long been used in aerospace, aviation, military, guns, automobiles and other industries to reduce vibration and dissipate energy; since the 1970s, people have gradually transferred these technologies to structural engineering such as buildings, bridges, and railways, and their development has been very rapid; a friction damper is disclosed in patent: CN 107816503 B. The friction damper includes: a housing having a longitudinal axis; a plunger that can move along the longitudinal axis; and a friction unit that is used to generate friction on the plunger.

[0003] The structure of the friction damper currently on the market is relatively simple, and the inertia capacity structure is not effectively and reasonably applied. The inertia capacity element itself only has the functions of inertia adjustment and energy transfer. In order to more effectively achieve the purpose of shock (vibration) control, it is often necessary to connect the inertia capacity with mechanical elements such as springs and energy-absorbing elements to work together. Therefore, there is room for optimization in the energy-absorbing capacity of the existing friction damper structure. In addition, the initial friction damping of traditional friction dampers is mostly fixed and has no adjustment capability, and the piston rod on the damper does not have the ability to automatically clean and lubricate.

[0004] In order to solve the above problems, the present invention proposes an inertia-friction composite damper. Summary of the invention

[0005] (1) Technical issues to be resolved The purpose of the present invention is to overcome the problems that there is room for optimization in the energy dissipation capacity of the friction damper structure in the prior art, and that the initial friction damping of traditional friction dampers is mostly fixed and has no adjustment capability, and that the piston rod on the damper does not have the ability to automatically clean and lubricate. In order to meet actual needs, a composite damper of inertia and friction is provided to solve the above technical problems.

[0006] (2) Technical solution In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: A composite damper of inertia capacity and friction comprises a shell box, on one side of the outer wall of the shell box a guide cylinder is symmetrically inlaid and fixed, a piston rod is inserted into the guide cylinder, a mounting seat is fixed to one end of the piston rod that passes through the outside of the guide cylinder, friction damping components are arranged on the inner walls on both sides of the shell box corresponding to the piston rod, and an inertia capacity component is arranged on the middle inner wall of the shell box.

[0007] Preferably, the friction damping assembly includes an end cylinder symmetrically fixed on the inner wall of one side of the shell box, a first piston is arranged on the inner wall of the end of the end cylinder, a damping spring is arranged on the inner wall of the end cylinder located on one side of the first piston, a connecting rod is fixed on the outer wall of one side of the first piston, the piston rod passes through the outer wall of one end of the inner wall of the shell box and is fitted with a side plate fixed thereon, the connecting rod passes through one end of the outside of the end cylinder and is fixedly connected to the outer wall of one side of the end of the side plate, a screw hole is provided on the outer wall of the end of the end cylinder, and a screw is threadedly connected inside the screw hole, the screw passes through the outer wall of one end of the end cylinder and a second piston is fixed thereon, and the second piston is located on one side of the damping spring, a handwheel is fixed on one end of the screw passing through the outside of the shell box, the interior of the shell box is filled with lubricating oil, and a piston rod linkage lubrication assembly is provided on the outer walls of the end cylinder and the guide cylinder.

[0008] Preferably, the inertia capacity assembly includes a shell box on the inner wall of one side of the piston rod end, on which a first rotating shaft is rotatably mounted, a crankshaft is provided on the outer wall of the bottom end of the first rotating shaft, a crank is rotatably mounted on the inner wall of the crankshaft end, a connecting frame is fixed on the outer wall of the end of the piston rod, a connecting shaft is fixed on the outer walls on both sides of the crank end, and both ends of the connecting shaft are rotatably connected to the inner walls on both sides of the connecting frame, a first gear is set and fixed on the outer wall of the top end of the first rotating shaft, a second rotating shaft is rotatably mounted on the inner wall of the shell box between the first rotating shafts, a second gear is set and fixed on the outer wall of the top end of the second rotating shaft, and the second gear is meshed with the second gears on both sides, a third rotating shaft is rotatably mounted on the inner wall of the shell box on one side of the second rotating shaft, a third gear is set and fixed on the outer wall of the top end of the third rotating shaft, the third gear and the second gear are meshed and connected, a fourth gear is set and fixed on the outer wall of the bottom end of the third rotating shaft, a friction plate is fixed on the inner wall of one side of the shell box, and a rack is fixed at one end of the friction plate, and the rack is meshed and connected with the fourth gear.

[0009] Preferably, the piston rod linkage lubrication assembly includes a suction tube connected through the outer wall on one side of the middle part of the end tube, and one end of the suction tube is connected through the filter element, and a pump tube is connected through the outer wall on the other side of the middle part of the end tube, and both the ends of the suction tube and the pump tube are equipped with one-way valves, a mounting ring is fixed on the outer wall of the end of the guide tube, an annular liquid bag is fixed on the inner wall of the mounting ring, one end of the pump tube is connected to the interior of the annular liquid bag, and a pressure relief valve is distributed and connected through the outer wall of one side of the annular liquid bag.

[0010] Preferably, bearings are installed at the rotational connections between the first rotating shaft, the second rotating shaft and the third rotating shaft and the shell box, and shaft seals are provided on both sides of the bearings of the shell box.

[0011] Preferably, the second rotating shaft passes through an outer wall of one end of the shell box and is provided with a hexagonal hole.

[0012] Preferably, a spring piece is fixedly mounted on the outer wall of the end of the pipette, a first magnetic block is inlaid on the outer wall of the end of the spring piece, and a second magnetic block is inlaid on the outer wall of one side of the crankshaft.

[0013] Preferably, a retaining nut is threadedly connected to the outer wall of the end of the screw.

[0014] Preferably, side plates are fixed on the outer walls of both sides of the shell box, and mounting holes are distributed on the outer walls of the side plates.

[0015] Preferably, a nozzle is connected through the end of the pressure relief valve, and the nozzle is located on one side of the outer wall of the piston rod.

[0016] (3) Beneficial effects: A. The composite damper has built-in friction damping components and inertia components. When the piston rod end mounting seat is subjected to external force vibration, the friction damping component provides movement resistance for the piston rod and consumes the movement energy. During the process, the inertia component amplifies the displacement acceleration, thereby improving the energy dissipation capacity of the friction damping structure.

[0017] B. The setting of the friction damping component provides motion damping for the piston rod through the elastic force of the damping spring, which is used to absorb the inherent vibration energy of the vibration system. During use, the worker can drive the screw to rotate by turning the handwheel. The rotation of the screw in the screw hole will drive the second piston to move in the end tube through the transmission. The movement of the second piston can press the damping spring in the end tube, thereby adjusting the initial length of the damping spring in the end tube and realizing simple adjustment of the friction damping of the damper.

[0018] C. The friction damping assembly and the piston rod linkage lubrication assembly are arranged in coordination. The centrifugal force generated by the movement of the first piston sucks the lubricating oil in the shell box through the suction tube and the filter element. The lubricating oil is sucked into the end tube, so that the damper works with both viscous and extrusion oil film damping effects, thereby improving the damping effect. The reciprocating movement of the first piston will pump the lubricating oil in the shell box out through the pump pipe and input it into the annular liquid bag in the mounting ring. The annular liquid bag is filled with liquid and expands to fit and contact the piston rod that moves telescopically. During the telescopic movement of the piston rod, the annular liquid bag plays a role in cleaning the surface of the piston rod. When the continuous pumping reaches the threshold of the pressure relief valve, the lubricating oil in the annular liquid bag is pumped out through the pressure relief valve, and the lubricating oil is sprayed on the surface of the piston rod 3, thereby playing a role in lubricating the piston rod on the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an inertia capacity and friction composite damper of the present invention; Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of an inertia capacity and friction composite damper of the present invention; Figure 3 It is a schematic diagram of the enlarged structure of point A of an inertia-friction composite damper of the present invention; Figure 4 It is a schematic diagram of the enlarged structure of the B position of an inertia capacity and friction composite damper of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of the C position of an inertia capacity and friction composite damper of the present invention; Figure 6 It is a schematic diagram of the enlarged structure of the D portion of an inertia-friction composite damper of the present invention.

[0020] The reference numerals are as follows: 1. Shell box; 2. Guide cylinder; 3. Piston rod; 4. Mounting seat; 5. Friction damping assembly; 6. Inertia assembly; 7. Piston rod linkage lubrication assembly; 8. Hexagon socket hole; 9. Shrapnel; 10. First magnetic block; 11. Second magnetic block; 12. Pressing nut; 13. Side plate; 14. Mounting hole; 15. Nozzle; 501, end cylinder; 502, first piston; 503, damping spring; 504, connecting rod; 505, side plate; 506, screw hole; 507, screw rod; 508, second piston; 509, hand wheel; 601, first rotating shaft; 602, crankshaft; 603, crank; 604, connecting frame; 605, connecting shaft; 606, first gear; 607, second rotating shaft; 608, second gear; 609, third rotating shaft; 610, third gear; 611, fourth gear; 612, friction plate; 613, rack; 701, suction tube; 702, pump liquid tube; 703, one-way valve; 704, filter element; 705, mounting ring; 706, annular liquid bag; 707, pressure relief valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] The following is combined with Figure 1-6 The present invention is further described with examples: In this embodiment, Figure 1-6As shown, an inertia-capacity and friction composite damper comprises a shell box 1, a guide cylinder 2 is symmetrically inlaid and fixed on one side outer wall of the shell box 1, a piston rod 3 is inserted inside the guide cylinder 2, a mounting seat 4 is fixed on one end of the piston rod 3 that passes through the outside of the guide cylinder 2, friction damping components 5 are arranged on the inner walls on both sides of the shell box 1 corresponding to the piston rod 3, and an inertia-capacity component 6 is arranged on the middle inner wall of the shell box 1. The composite damper has built-in friction damping components 5 and inertia-capacity components 6. During the external force vibration of the mounting seat 4 at the end of the piston rod 3, the friction damping component 5 provides movement resistance for the piston rod 3 and consumes the movement energy. During the process, the inertia-capacity component 6 amplifies the displacement acceleration, thereby improving the energy consumption capacity of the friction damping structure.

[0023] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The friction damping assembly 5 includes an end tube 501 symmetrically fixed on the inner wall of one side of the shell box 1, a first piston 502 is arranged on the inner wall of the end of the end tube 501, a damping spring 503 is arranged on the inner wall of the end tube 501 located on one side of the first piston 502, a connecting rod 504 is fixed on the outer wall of one side of the first piston 502, the piston rod 3 passes through the outer wall of one end of the inner wall of the shell box 1 and is fitted with a side plate 505, and the connecting rod 504 passes through one end of the end tube 501 and is connected to the outer wall of the end tube 501. The outer wall of one side of the end of the side plate 505 is fixedly connected, a screw hole 506 is opened on the outer wall of the end of the end tube 501, and a screw rod 507 is screwed in the inner part of the screw hole 506, and the screw rod 507 passes through the inner end of the end tube 501. A second piston 508 is fixed on the outer wall, and the second piston 508 is located on one side of the damping spring 503. A hand wheel 509 is fixed on one end of the screw rod 507 that passes through the outside of the shell box 1. The interior of the shell box 1 is filled with lubricating oil. The end tube 501 and A piston rod linkage lubrication assembly 7 is provided on the outer wall of the guide cylinder 2. During the installation and use of the composite damper, when the piston rod 3 is subjected to external force and vibration, the piston rod 3 moves telescopically along the guide cylinder 2, and the end of the piston rod 3 drives the connecting rods 504 on both sides to move telescopically through the side plates 505. The connecting rods 504 drive the first piston 502 to move in the end cylinder 501 and compress the damping spring 503. The elastic force of the damping spring 503 provides motion damping for the piston rod 3, which is used to absorb the inherent vibration energy of the vibration system. During use, the worker can drive the screw 507 to rotate by screwing the hand wheel 509. The screw 507 rotates in the screw hole 506 and drives the second piston 508 to move in the end cylinder 501 through transmission. The movement of the second piston 508 can press the damping spring 503 in the end cylinder 501, thereby adjusting the initial length of the damping spring 503 in the end cylinder 501 and realizing simple adjustment of the friction damping of the damper.

[0024] Furthermore, a holding nut 12 is threadedly connected to the outer wall of the end of the screw rod 507. After the above-mentioned turning hand wheel 509 adjusts the initial length of the damping spring 503, the holding nut 12 can be tightened on the screw rod 507 to achieve rotational braking of the screw rod 507 and fixation of the damping spring 503 after the length is adjusted.

[0025] Furthermore, side plates 13 are fixed on the outer walls of both sides of the housing box 1, and mounting holes 14 are distributed on the outer walls of the side plates 13, and the mounting holes 14 on the side plates 13 are used to cooperate with bolts and expansion bolts for installation.

[0026] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 The inertia container assembly 6 includes a shell box 1, on the inner wall of one side of the end of the piston rod 3, a first rotating shaft 601 is rotatably mounted, a crankshaft 602 is arranged on the outer wall of the bottom end of the first rotating shaft 601, a crank 603 is rotatably mounted on the inner wall of the end of the crankshaft 602, a connecting frame 604 is fixed on the outer wall of the end of the piston rod 3, a connecting shaft 605 is fixed on the outer walls of both sides of the end of the crank 603, and both ends of the connecting shaft 605 are rotatably connected to the inner walls of both sides of the connecting frame 604, a first gear 606 is fixed on the outer wall of the top end of the first rotating shaft 601, and the shell box 1 is located at A second rotating shaft 607 is rotatably mounted on the inner wall between the first rotating shafts 601, a second gear 608 is fixedly mounted on the top outer wall of the second rotating shaft 607, and the second gear 608 is meshedly connected with the second gears 608 on both sides, a third rotating shaft 609 is rotatably mounted on the inner wall of the shell box 1 on one side of the second rotating shaft 607, a third gear 610 is fixedly mounted on the top outer wall of the third rotating shaft 609, and the third gear 610 is meshedly connected with the second gear 608, a fourth gear 611 is fixedly mounted on the bottom outer wall of the third rotating shaft 609, and one side of the shell box 1 A friction plate 612 is fixed on the inner wall, and a rack 613 is fixed at one end of the friction plate 612. The rack 613 is meshed and connected with the fourth gear 611. During the use of the above-mentioned composite damper, the piston rod 3 is telescopically moved along the guide cylinder 2, and the crankshaft 602 is driven to swing back and forth through the connecting frame 604 and the connecting shaft 605 structure. Under the cooperation of the crankshaft 602 and the crank 603, the first rotating shaft 601 and the first gear 606 on both sides are driven to rotate, and the first gear 606 and the second gear 608 on both sides cooperate to drive. The third rotating shaft 609 is driven to rotate, and the third gear 610 and the second gear 608 cooperate to drive the third rotating shaft 609 to rotate, thereby driving the fourth gear 611 at the bottom to rotate, and the fourth gear 611 and the rack 613 cooperate to drive, driving the rack 613 and the friction plate 612 as the output end of the inertia displacement (acceleration) to displace, wherein the transmission ratio between the crankshaft 602 and the second gear 608 and the third gear 610 is set to ensure the amplification of the inertia displacement (acceleration), thereby improving the energy consumption capacity of the friction damping structure.

[0027] Furthermore, bearings are installed at the rotating connections between the first rotating shaft 601, the second rotating shaft 607 and the third rotating shaft 609 and the shell box 1, and shaft seals are provided on both sides of the bearings of the shell box 1 to make the first rotating shaft 601, the second rotating shaft 607 and the third rotating shaft 609 rotate more smoothly. The setting of the shaft seal ensures the sealing inside the shell box 1 and is conducive to the storage of oil in the shell box 1.

[0028] Furthermore, a second rotating shaft 607 passes through the outer wall of one end of the shell box 1 and is provided with an inner hexagonal hole 8. During the installation process of the composite damper, an outer hexagonal rod tool can be taken and inserted into the inner hexagonal hole 8, and the second rotating shaft 607 is screwed. The second rotating shaft 607 rotates through the second gear 608 and the first gear 606 to drive the first rotating shaft 601 on both sides to rotate. With the cooperation of the crankshaft 602 and the crank 603, the piston rod 3 is driven to be telescopically adjusted along the guide cylinder 2, thereby realizing the adjustment of the position of the mounting seat 4 at the end of the piston rod 3, which is beneficial to the installation of the damper.

[0029] In this embodiment, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The piston rod linkage lubrication assembly 7 includes a liquid suction pipe 701 which is connected to the outer wall of one side of the middle part of the end tube 501, and one end of the liquid suction pipe 701 is connected to the filter element 704, and a pump liquid pipe 702 is connected to the outer wall of the other side of the middle part of the end tube 501. The ends of the liquid suction pipe 701 and the pump liquid pipe 702 are both installed with a one-way valve 703, a mounting ring 705 is fixed on the outer wall of the end of the guide tube 2, and an annular liquid capsule 706 is fixed on the inner wall of the mounting ring 705. One end of the pump liquid pipe 702 is connected to the inside of the annular liquid capsule 706, and a pressure relief valve 707 is distributed and connected on the outer wall of one side of the annular liquid capsule 706. In the use of the above-mentioned composite damper, the end of the piston rod 3 will drive the connecting rod 504 and the first piston 502 to reciprocate in the end tube 501 through the side plate 505. The first piston 50 The centrifugal force generated by the movement of the first piston 502 is used to suck the lubricating oil in the housing 1 through the suction pipe 701 and the filter element 704, and the lubricating oil is sucked into the end tube 501, so that the damper works with two damping effects, namely viscosity and squeeze oil film, thereby improving the damping effect. The reciprocating movement of the first piston 502 will pump out the lubricating oil in the housing 1 through the pump pipe 702 and input it into the annular liquid bag 706 in the mounting ring 705. The annular liquid bag 706 is filled with liquid and expanded to fit and contact the piston rod 3 that moves telescopically. During the telescopic movement of the piston rod 3, the annular liquid bag 706 plays a role in cleaning the surface of the piston rod 3. When the continuous pumping reaches the threshold of the pressure relief valve 707, the lubricating oil in the annular liquid bag 706 is pumped out through the pressure relief valve 707, and the lubricating oil is sprayed on the surface of the piston rod 3, thereby playing a role in lubricating the piston rod 3 on the damper.

[0030] Furthermore, a spring piece 9 is fixedly mounted on the outer wall of the end of the suction tube 701, and a first magnetic block 10 is inlaid on the outer wall of the end of the spring piece 9, and a second magnetic block 11 is inlaid on the outer wall of one side of the crankshaft 602. During the operation of the above-mentioned composite damper, when the second magnetic block 11 above the crankshaft 602 rotates to a relative position on the same horizontal plane as the first magnetic block 10, when the first magnetic block 10 and the second magnetic block 11 repel each other with the same poles, the spring piece 9 will be driven to flip and knock on the filter element 704. When the crankshaft 602 rotates, the first magnetic block 10 and the second magnetic block 11 are misaligned, and the spring piece 9 will be reset. During the continuous rotation of the crankshaft 602, the spring piece 9 and the first magnetic block 10 structure will be driven to reciprocately knock on the filter element 704, thereby avoiding the occurrence of blockage of the filter element 704 and facilitating the pumping of lubricating oil.

[0031] Furthermore, the end of the pressure relief valve 707 is connected with a nozzle 15, and the nozzle 15 is located on one side of the outer wall of the piston rod 3. The lubricating oil is sprayed through the nozzle 15 onto the outer wall of the piston rod 3 to ensure the lubrication of the piston rod 3 on the damper.

[0032] Beneficial effects of the present invention: the composite damper has a built-in friction damping component 5 and an inertia component 6. When the mounting seat 4 at the end of the piston rod 3 is subjected to external force vibration, the friction damping component 5 provides resistance to the movement of the piston rod 3 to consume the movement energy. During the process, the inertia component 6 amplifies the displacement acceleration, thereby improving the energy consumption capacity of the friction damping structure.

[0033] Furthermore, the setting of the friction damping component 5 provides motion damping for the piston rod 3 through the elastic force of the damping spring 503, so as to absorb the inherent vibration energy of the vibration system. During use, the worker can drive the screw 507 to rotate by turning the hand wheel 509. The rotation of the screw 507 in the screw hole 506 will drive the second piston 508 to move in the end tube 501 through the transmission. The movement of the second piston 508 can press the damping spring 503 in the end tube 501, thereby realizing the adjustment of the initial length of the damping spring 503 in the end tube 501 and realizing the simple adjustment of the friction damping of the damper.

[0034] Furthermore, the friction damping component 5 and the piston rod linkage lubrication component 7 are arranged in coordination. The centrifugal force generated by the movement of the first piston 502 sucks the lubricating oil in the shell box 1 through the suction tube 701 and the filter element 704. The lubricating oil is sucked into the end tube 501, so that the damper works with both viscous and extrusion oil film damping effects, thereby improving the damping effect. The reciprocating movement of the first piston 502 will pump the lubricating oil in the shell box 1 out through the pump pipe 702 and input it into the annular liquid bag 706 in the mounting ring 705. The annular liquid bag 706 is filled with liquid and expands to come into contact with the telescopic piston rod 3. During the telescopic movement of the piston rod 3, the annular liquid bag 706 cleans the surface of the piston rod 3. When the pumping liquid continues and reaches the threshold of the pressure relief valve 707, the lubricating oil in the annular liquid bag 706 is pumped out through the pressure relief valve 707, and the lubricating oil is sprayed on the surface of the piston rod 3, thereby lubricating the piston rod 3 on the damper.

[0035] Working principle: When the present invention is in use, the inertia and friction composite damper is used. The housing 1 is installed by using the mounting holes 14 on the side plate 13 with bolts and expansion bolts. The piston rod 3 end mounting seat 4 is an external force-receiving vibration structure. During the installation process, an external hexagonal rod tool can be inserted into the internal hexagonal hole 8, and the second rotating shaft 607 is screwed. The second rotating shaft 607 rotates and drives the first rotating shaft 601 on both sides to rotate through the second gear 608 and the first gear 606. Under the cooperation of the crankshaft 602 and the crank 603, the piston rod 3 is driven to be telescopically adjusted along the guide cylinder 2. Thereby, the position of the mounting seat 4 at the end of the piston rod 3 is adjusted, which is beneficial to the installation of the damper. When the piston rod 3 is subjected to external force and vibrates, the piston rod 3 moves telescopically along the guide cylinder 2. The end of the piston rod 3 drives the connecting rods 504 on both sides to move telescopically through the side plates 505. The connecting rods 504 drive the first piston 502 to move in the end cylinder 501 and compress the damping spring 503. The elastic force of the damping spring 503 provides motion damping for the piston rod 3 to absorb the inherent vibration energy of the vibration system. During use, the worker can drive the screw 507 to rotate by turning the hand wheel 509. The screw 507 is in the screw hole 50 6 rotates in the guide tube 2, which drives the second piston 508 to move in the end tube 501. The movement of the second piston 508 can press the damping spring 503 in the end tube 501, so as to adjust the initial length of the damping spring 503 in the end tube 501 and realize the simple adjustment of the friction damping of the damper. During the telescopic movement of the piston rod 3 along the guide tube 2, the crankshaft 602 is driven to swing back and forth through the connecting frame 604 and the connecting shaft 605 structure. Under the cooperation of the crankshaft 602 and the crank 603, the first rotating shaft 601 and the first gear 606 on both sides are driven to rotate. The first gears 606 on both sides are 06 and the second gear 608 cooperate to drive the third shaft 609 to rotate, the third gear 610 and the second gear 608 cooperate to drive the third shaft 609 to rotate, thereby driving the fourth gear 611 at the bottom to rotate, the fourth gear 611 and the rack 613 cooperate to drive, drive the rack 613 and the friction plate 612 as the output end of the inertia displacement (acceleration) to displace, wherein the transmission ratio between the crankshaft 602 and the second gear 608 and the third gear 610 is set to ensure the amplification of the inertia displacement (acceleration), thereby improving the energy dissipation capacity of the friction damping structure;The centrifugal force generated by the movement of the first piston 502 sucks the lubricating oil in the shell box 1 through the suction tube 701 and the filter element 704, and the lubricating oil is sucked into the end tube 501, so that the damper works with both viscosity and extrusion oil film damping effects, thereby improving the damping effect. The reciprocating movement of the first piston 502 will pump the lubricating oil in the shell box 1 out through the pump pipe 702 and input it into the annular liquid bag 706 in the mounting ring 705. The annular liquid bag 706 is filled with liquid and expands to contact with the telescopic piston rod 3. During the telescopic movement of the piston rod 3, the annular liquid bag 706 plays a role in cleaning the surface of the piston rod 3. When the pressure relief valve 707 threshold is reached by continuous pumping, the pressure in the annular liquid bag 706 is increased. The lubricating oil is pumped out through the pressure relief valve 707, and the lubricating oil is sprayed on the surface of the piston rod 3, which plays the role of lubricating the piston rod 3 on the damper. When the second magnetic block 11 above rotates to the same horizontal plane relative position as the first magnetic block 10 during the rotation of the crankshaft 602, when the first magnetic block 10 and the second magnetic block 11 repel each other with the same poles, the spring piece 9 will be driven to flip and knock the filter element 704. When the first magnetic block 10 and the second magnetic block 11 are misaligned during the rotation of the crankshaft 602, the spring piece 9 will be reset. During the continuous rotation of the crankshaft 602, the spring piece 9 and the first magnetic block 10 structure will be driven to reciprocately knock the filter element 704, avoiding the occurrence of the problem of blockage of the filter element 704, which is conducive to the pumping of the lubricating oil. ;

[0036] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An inertia and friction composite damper, characterized in that: The invention comprises a shell box (1), a guide cylinder (2) is symmetrically inlaid and fixed on the outer wall of one side of the shell box (1), a piston rod (3) is inserted into the interior of the guide cylinder (2), a mounting seat (4) is fixed to one end of the piston rod (3) that passes through the outside of the guide cylinder (2), friction damping components (5) are arranged on the inner walls of both sides of the shell box (1) corresponding to the piston rod (3), and an inertia component (6) is arranged on the inner wall of the middle part of the shell box (1).

2. The inertia-friction composite damper according to claim 1, characterized in that: The friction damping assembly (5) comprises an end tube (501) symmetrically fixed to the inner wall of one side of the housing box (1); a first piston (502) is arranged on the inner wall of the end of the end tube (501); a damping spring (503) is arranged on the inner wall of one side of the end tube (501) located on the first piston (502); a connecting rod (504) is fixed to the outer wall of one side of the first piston (502); a side plate (505) is fixed to the outer wall of one end of the piston rod (3) passing through the inner wall of the housing box (1); the connecting rod (504) passes through one end of the end tube (501) and one end of the end of the side plate (505). The outer wall is fixedly connected, a screw hole (506) is opened through the outer wall of the end of the end tube (501), and a screw rod (507) is threadedly connected inside the screw hole (506), and a second piston (508) is fixed on the outer wall of one end of the screw rod (507) passing through the inside of the end tube (501), and the second piston (508) is located on one side of the damping spring (503), and a hand wheel (509) is fixed on the end of the screw rod (507) passing through the outside of the shell box (1), the inside of the shell box (1) is filled with lubricating oil, and a piston rod linkage lubrication assembly (7) is provided on the outer walls of the end tube (501) and the guide tube (2).

3. The inertia-friction composite damper according to claim 1, characterized in that: The inertia volume assembly (6) comprises a shell box (1) on which a first rotating shaft (601) is rotatably mounted on the inner wall of one side of the end of the piston rod (3); a crankshaft (602) is arranged on the outer wall of the bottom end of the first rotating shaft (601); a crank (603) is rotatably mounted on the inner wall of the end of the crankshaft (602); a connecting frame (604) is fixed on the outer wall of the end of the piston rod (3); connecting shafts (605) are fixed on the outer walls on both sides of the end of the crank (603), and both ends of the connecting shaft (605) are rotatably connected to the inner walls on both sides of the connecting frame (604); a first gear (606) is fixedly mounted on the outer wall of the top end of the first rotating shaft (601); a second rotating shaft (607) is rotatably mounted on the inner wall of the shell box (1) located between the first rotating shafts (601); A second gear (608) is fixedly mounted on the top outer wall of the second rotating shaft (607), and the second gear (608) is meshingly connected with the second gears (608) on both sides. A third rotating shaft (609) is rotatably mounted on the inner wall of the housing (1) located on one side of the second rotating shaft (607). A third gear (610) is fixedly mounted on the top outer wall of the third rotating shaft (609), and the third gear (610) is meshingly connected with the second gear (608). A fourth gear (611) is fixedly mounted on the bottom outer wall of the third rotating shaft (609). A friction plate (612) is fixedly mounted on the inner wall of one side of the housing (1), and a rack (613) is fixedly mounted on one end of the friction plate (612), and the rack (613) is meshingly connected with the fourth gear (611).

4. The inertia-friction composite damper according to claim 2, characterized in that: The piston rod linkage lubrication assembly (7) comprises a liquid suction pipe (701) connected to the outer wall of one side of the middle part of the end tube (501), and one end of the liquid suction pipe (701) is connected to the filter element (704), and a pump liquid pipe (702) is connected to the outer wall of the other side of the middle part of the end tube (501), and one-way valves (703) are installed at the ends of the liquid suction pipe (701) and the pump liquid pipe (702). A mounting ring (705) is fixed to the outer wall of the end of the guide tube (2), and an annular liquid capsule (706) is fixed to the inner wall of the mounting ring (705). One end of the pump liquid pipe (702) is connected to the inside of the annular liquid capsule (706), and a pressure relief valve (707) is distributed and connected to the outer wall of one side of the annular liquid capsule (706).

5. The inertia-friction composite damper according to claim 3, characterized in that: The rotational connections between the first rotating shaft (601), the second rotating shaft (607) and the third rotating shaft (609) and the housing (1) are all equipped with bearings, and the housing (1) is equipped with shaft seals on both sides of the bearings.

6. The inertia-friction composite damper according to claim 3, characterized in that: The second rotating shaft (607) passes through the outer wall of one end of the housing box (1) and is provided with a hexagonal hole (8).

7. The inertia-friction composite damper according to claim 4, characterized in that: A spring sheet (9) is fixedly mounted on the outer wall of the end of the liquid pipette (701), a first magnetic block (10) is inlaid on the outer wall of the end of the spring sheet (9), and a second magnetic block (11) is inlaid on the outer wall of one side of the crankshaft (602).

8. The inertia-friction composite damper according to claim 2, characterized in that: A retaining nut (12) is threadedly connected to the outer wall of the end of the screw rod (507).

9. The inertia-friction composite damper according to claim 2, characterized in that: Side plates (13) are fixed on the outer walls of both sides of the shell box (1), and mounting holes (14) are distributed on the outer walls of the side plates (13).

10. The inertia-friction composite damper according to claim 4, characterized in that: The end of the pressure relief valve (707) is connected through a nozzle (15), and the nozzle (15) is located on one side of the outer wall of the piston rod (3).

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