CN109695303B - Rotary friction type support capable of intelligently regulating rigidity damping - Google Patents

Abstract

The invention relates to a rotary friction type support capable of intelligently regulating rigidity and damping, which comprises a spiral friction mandrel, a high-strength wear-resistant cylinder, a high-strength wear-resistant discrete body, a head bearing, a tail bearing, a rotary end head, an anchor bolt, a spring intelligent regulating device, a high-strength super-elastic arc pressurizing device, an upper fixed limiting device, a lower fixed limiting device, a rigidity-regulating energy consumption device, a rigid connecting piece and a rigid supporting plate. The energy consumption mode is that the spiral friction mandrel rotates, so that no loss is generated on energy consumption components, and the energy consumption type spiral friction mandrel has good durability and high reliability; the total rigidity and the energy consumption capacity of the support are adjusted by the deformation energy consumption of the variable-rigidity energy consumption device; damping of the intelligent regulation and control support is realized through stress intelligent sensor, singlechip control processing and the like, and a hysteresis energy consumption curve can be displayed through an image processor, so that real-time monitoring is realized. The invention has the advantages of clear design of the anti-seismic concept, simple structure and structure, low cost of the used materials, convenient construction and convenient replacement.

Description

A rotational friction support with intelligent control of stiffness and damping

Technical Field

The invention discloses a rotational friction type support for intelligently regulating stiffness and damping, and belongs to the technical field of earthquake resistance and energy dissipation and shock absorption of engineering structures.

Background technique

The traditional seismic design method for building structures is to resist earthquakes by enhancing the seismic performance of the building structure itself, such as increasing the size and reinforcement of beams and columns, that is, a passive and negative seismic countermeasure of storing and dissipating seismic energy by the structure itself to meet the structural seismic fortification standards.

At present, energy dissipation and shock absorption technology is developing rapidly, and many types of shock absorption components and energy absorbers have been developed, such as viscous dampers, soft steel dampers, friction dampers, etc. Energy dissipation and shock absorption technology is to set energy absorbers in certain parts of the structure to consume the energy transmitted to the structure by earthquake through elastic-plastic deformation, friction, etc., increase structural damping, and thus achieve the role of protecting the structure. Energy dissipation and shock absorption technology plays a vital role in the field of structural reinforcement and structural earthquake resistance, and is one of the most commonly used means of building earthquake resistance.

Summary of the invention

In view of the defects of the prior art, the purpose of the present invention is to provide a rotational friction support with intelligently adjustable stiffness and damping, which has strong energy dissipation capacity, stable energy dissipation effect, intelligently adjustable stiffness and damping, and can monitor the working status and energy consumption in real time.

In order to achieve the above purpose, the technical solution adopted by the present invention is:

A rotating friction support with intelligent stiffness and damping control, comprising a spiral friction mandrel, a high-strength wear-resistant cylinder, a high-strength wear-resistant discrete body, a head bearing, a tail bearing, a rotating end, an anchor bolt, a spring intelligent adjustment device, a high-strength super-elastic arc-shaped pressurizing device, an upper fixed limit device and a lower fixed limit device, a variable stiffness energy dissipation device, a rigid connector, and a rigid support plate; a high-strength wear-resistant cylinder is arranged outside the spiral friction mandrel, a spring intelligent adjustment device and a high-strength super-elastic arc-shaped pressurizing device are arranged inside the high-strength wear-resistant cylinder, a high-strength wear-resistant discrete body is filled in the space surrounded by the high-strength super-elastic arc-shaped pressurizing device, and the spiral friction mandrel is placed in the high-strength wear-resistant discrete body; the high-strength wear-resistant discrete body and the high-strength super-elastic arc-shaped pressurizing device are sealed and fixed by the upper fixed limit device and the lower fixed limit device position; one end of the modulation stiffness energy dissipation device is fixedly connected to the tail of the spiral friction core shaft through a rigid connector, and the other end thereof is connected to a rigid support plate embedded in the high-strength wear-resistant cylinder through a rigid connector; a spring intelligent adjustment device is arranged on the upper fixed limit device to adjust the prestress of the high-strength wear-resistant discrete body in the high-strength wear-resistant cylinder; the end of the spiral friction core shaft is fixedly connected to the rotating end through an anchor bolt, the rotating end is connected to the inside of the head bearing, and the tail of the high-strength wear-resistant cylinder is connected to the tail bearing; an infrared sensor and a stress intelligent sensor are arranged inside the high-strength wear-resistant cylinder, and an image processor and a single-chip microcomputer control processing module are arranged on the outer surface of the high-strength wear-resistant cylinder, and the infrared sensor, the stress intelligent sensor, the image processor, the single-chip microcomputer control processing module and the intelligent rotating valve are connected through telecommunication lines.

The spring intelligent adjustment device includes an intelligent rotating valve, a balanced sliding plug, a fastening device, and a spring sheet; there are four intelligent rotating valves and four fastening devices, the intelligent rotating valve is fixedly connected to the end of the fastening device, the other end of the fastening device is connected to the spring sheet through the balanced sliding plug, and the other end of the spring sheet is fixed on the lower fixed limit device; when the support stress reaches the set value of the single-chip control processor, the intelligent rotating valve rotates the fastening device, the fastening device pushes the balanced sliding plug, the balanced sliding plug uniformly compresses the spring sheet, the deformation of the spring sheet pushes the high-strength super-elastic arc-shaped pressurizing device to rub inward, thereby squeezing the high-strength wear-resistant discrete body, increasing the prestress between the high-strength wear-resistant discrete bodies, thereby increasing the internal friction of the support, and achieving the purpose of adjusting the damping. The intelligent rotating valve is controlled by a single-chip microcomputer control and processing module. Under the action of an earthquake, when the support force is greater than the value set by the single-chip microcomputer, the single-chip microcomputer control and processing module controls the intelligent rotating valve to start the gear, rotate the fastening device to compress the spring sheet, and push the high-strength super-elastic arc-shaped pressurizing device to change the prestress between the high-strength and wear-resistant discrete bodies, thereby changing the internal friction of the intelligent support; when the intelligent rotating valve continuously rotates the fastening device and the support force continues to increase, after reaching a certain value, the single-chip microcomputer control and processing module controls the intelligent rotating valve to stop.

There are four high-strength super-elastic arc-shaped pressurizing devices in total. The arc surfaces on both sides of each high-strength super-elastic arc-shaped pressurizing device contact each other, forming a tetrahedron in the high-strength wear-resistant cylinder. A spring sheet is arranged on each of the four faces of the tetrahedron, and the interior of the tetrahedron is filled with high-strength wear-resistant discrete bodies.

The variable stiffness energy dissipation device is composed of a plurality of variable stiffness energy dissipation plates which are stacked in series via rigid pipe clamps. When the spiral friction core shaft pulls and compresses the variable stiffness energy dissipation device through a rigid connector to displace and deform, the displacement and deformation amount is distributed on each variable stiffness energy dissipation plate according to the stiffness of the variable stiffness energy dissipation plate. The number of variable stiffness energy dissipation devices is increased according to different support displacement design requirements under different working conditions, thereby adjusting the total stiffness and energy dissipation capacity of the support.

A ball bearing is arranged between the rotating end and the surface of the head bearing to reduce the friction between the rotating end and the head bearing when the rotating end rotates.

A ball bearing is arranged in a groove where the rigid support plate and the high-strength wear-resistant cylinder are connected, so as to reduce the friction between the rigid support plate and the groove when the rigid support plate is driven to rotate by the spiral friction core shaft.

The control and processing system for intelligently regulating stiffness and damping comprises a calculation and processing module, an infrared sensor, an image processor, a stress intelligent sensor, a single-chip microcomputer control and processing module, and a spring intelligent adjustment device; the input end of the single-chip microcomputer control and processing module is connected to the calculation and processing module to receive the digital signal output by the calculation and processing module, and the output end is connected to the intelligent rotating valve of the spring intelligent adjustment device; the infrared sensor measures the displacement data of the spiral friction core shaft under the action of an earthquake, and the stress intelligent sensor measures the force size data of the support under the action of an earthquake. The real-time data measured by the infrared sensor and the stress intelligent sensor are sent to the calculation and processing module, and then the calculation and processing module processes the data to form a hysteresis curve and sends it to the image processor for display, and at the same time sends a digital signal to the single-chip microcomputer control and processing module, and the single-chip microcomputer control and processing module controls the start-up of the spring intelligent adjustment device according to the set value.

The spiral friction mandrel is made of high-strength steel, which can effectively reduce its friction loss in the working state and prevent the friction coefficient from decreasing, which affects its normal use. The high-strength wear-resistant discrete body adopts material particles with high hardness, good wear resistance and high friction coefficient, which can greatly increase the energy consumption capacity and durability of the support.

Under the action of earthquake, when the spiral friction mandrel is forced to move back and forth, the friction and extrusion between the spiral surface on the spiral friction mandrel and the high-strength wear-resistant discrete body cause the spiral friction mandrel to rotate, and the energy consumption effect is generated through the rotation of the spiral friction mandrel and the mechanical friction between the spiral surface and the high-strength wear-resistant discrete body. The present invention can realize the damping of the intelligent control support through the stress intelligent sensor and the single-chip microcomputer control processing, and can display the hysteresis energy consumption curve through the image processor, and can directly view the working state and energy consumption of the support to achieve real-time monitoring. At the same time, the spiral friction mandrel pulls the variable modulation stiffness energy consumption device to deform and consume energy, and the total stiffness and energy consumption capacity of the support are adjusted through the deformation of the variable modulation stiffness energy consumption plate. This support consumes energy through three energy consumption modes: the rotation of the spiral friction mandrel, the friction between the spiral surface of the spiral friction mandrel and the high-strength wear-resistant discrete body, and the deformation of the variable modulation stiffness energy consumption device, thereby reducing the seismic response of the structure, thereby protecting the structure.

Compared with the prior art, the present invention has the following advantages:

The energy dissipation method of the present invention is to produce energy dissipation effect through the rotation of the spiral friction mandrel, the mechanical friction between the spiral surface and the high-strength wear-resistant discrete body, and the deformation energy dissipation of the variable stiffness energy dissipation device to reduce the seismic response of the structure. The main energy dissipation method is the rotation of the spiral friction mandrel, which will not cause loss to the energy dissipation component, so it has good durability and high reliability; the total stiffness and energy dissipation capacity of the support are adjusted through the deformation energy dissipation of the variable stiffness energy dissipation device; at the same time, the present invention can realize intelligent control of the damping of the support through stress intelligent sensors and single-chip microcomputer control processing, and can display the hysteresis energy dissipation curve through an image processor, so that the working status and energy consumption of the support can be directly checked to achieve real-time monitoring. The seismic concept design of the present invention is clear, the structural construction is simple, the cost of the materials used is low, the construction is convenient, and it is easy to replace.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an overall schematic diagram of a rotational friction type support with intelligently controlled stiffness and damping according to the present invention;

FIG2 is a schematic diagram of the internal structure of a rotational friction type support with intelligently controlled stiffness and damping according to the present invention;

FIG3 is a schematic cross-sectional view of a rotational friction support with intelligently controlled stiffness and damping according to the present invention;

FIG4 is a schematic diagram of a high-strength wear-resistant cylinder of a rotating friction type support with intelligently adjustable stiffness and damping according to the present invention;

5 is a schematic diagram of the arrangement of a spring intelligent adjustment device of a rotating friction type support with intelligent stiffness damping control, a high-strength superelastic arc and a pressurizing device variable stiffness energy dissipation device inside a high-strength wear-resistant cylinder according to the present invention;

FIG6 is a schematic diagram of an image processor setting of a rotational friction type support with intelligently controlled stiffness and damping according to the present invention;

FIG7 is a schematic diagram of an image processor of a rotational friction support with intelligently controlled stiffness and damping according to the present invention;

FIG8 is a schematic diagram of communication connection of an intelligent control module of a rotational friction support with intelligent stiffness and damping control according to the present invention;

FIG9 is a schematic diagram of a spiral friction mandrel of a rotational friction support with intelligently adjustable stiffness and damping according to the present invention;

FIG10 is a schematic diagram of a head bearing of a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention;

FIG11 is a schematic diagram of a rotational friction type support head bearing structure with intelligently adjustable stiffness and damping according to the present invention;

FIG12 is a schematic diagram of the internal structure of a head bearing of a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention;

FIG13 is a schematic diagram of a rotating end of a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention;

FIG14 is a cross-sectional schematic diagram of a rotating end of a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention;

FIG15 is a schematic cross-sectional view of the end structure of a rotational friction type support with intelligent stiffness and damping control according to the present invention;

FIG16 is a schematic diagram of the connection between the spiral friction mandrel and the rotating end of a rotational friction support with intelligent stiffness and damping control according to the present invention;

FIG17 is a schematic diagram of the connection between the spiral friction mandrel and the head bearing of a rotating friction support with intelligent stiffness and damping control according to the present invention;

FIG18 is a schematic diagram of a spring sheet of a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention;

FIG19 is a schematic diagram of a high-strength super-elastic arc-shaped pressurizing device of a rotating friction type support with intelligently controlled stiffness and damping according to the present invention;

FIG20 is a schematic diagram of a tetrahedron formed by a high-strength superelastic arc-shaped pressurizing device of a rotational friction type support with intelligently controlled stiffness and damping according to the present invention;

FIG21 is a schematic diagram of an upper and lower fixed limit device and a balanced sliding plug of a rotational friction type support with intelligent stiffness and damping control according to the present invention;

FIG22 is a schematic diagram of a fastening device for a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention;

FIG23 is a schematic diagram of an intelligent rotary valve of a rotary friction support with intelligent control of stiffness and damping according to the present invention;

FIG24 is a cross-sectional view of an intelligent rotary valve of a rotary friction type support for intelligently regulating stiffness and damping according to the present invention;

FIG. 25 is a schematic diagram showing the connection between an intelligent rotary valve and a fastening device in an intelligent spring adjustment device of a rotary friction type support for intelligently regulating stiffness and damping according to the present invention.

FIG. 26 is a schematic diagram of a variable stiffness energy dissipation plate in a variable stiffness energy dissipation device of a rotating friction type support with intelligently adjustable stiffness damping according to the present invention.

FIG. 27 is a schematic diagram of a rigid pipe clamp in a variable stiffness energy dissipation device of a rotational friction type support with intelligently adjustable stiffness damping according to the present invention.

FIG. 28 is a schematic diagram of a variable stiffness energy dissipation device of a rotational friction type support with intelligently adjustable stiffness damping according to the present invention.

FIG. 29 is a schematic diagram of a tail bearing of a rotational friction type support with intelligently adjustable stiffness and damping according to the present invention.

The corresponding relationship between the reference numerals in Figures 1 to 29 and the names of the parts is as follows:

1. Spiral friction mandrel, 2. High-strength wear-resistant discrete body, 3. High-strength wear-resistant cylinder, 4. Lower fixed limit device, 5. Head bearing, 6. Tail bearing, 7. Rotating end, 8. Ball, 9. Anchor bolt, 10. Spring sheet, 11. High-strength super-elastic arc pressure device, 12. Upper fixed limit device, 13. Balanced sliding plug, 14. Fastening device, 15. Modulated stiffness energy dissipation plate, 16. Infrared sensor, 17. Image processor, 18. Stress intelligent sensor, 19. Single-chip microcomputer control processing module, 20. Intelligent rotary valve, 21. Rigid pipe clamp, 22. Rigid connector, 23. Rigid support plate, 24. Telecommunication line.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, 3, 9 to 17, and 21, a rotating friction support with intelligently controlled stiffness and damping comprises a spiral friction mandrel 1, a high-strength wear-resistant cylinder 3, a high-strength wear-resistant discrete body 2, a head bearing 5, a tail bearing 6, a rotating end 7, an anchor bolt 9, a spring intelligent adjustment device, a high-strength super-elastic arc-shaped pressurizing device 11, an upper fixed limit device 12 and a lower fixed limit device 4, a variable stiffness energy dissipation device, a rigid connector 22, and a rigid support plate 23; a high-strength wear-resistant cylinder 3 is arranged outside the spiral friction mandrel 1, a spring intelligent adjustment device and a high-strength super-elastic arc-shaped pressurizing device 11 are arranged inside the high-strength wear-resistant cylinder 3, a high-strength wear-resistant discrete body 2 is filled in the space surrounded by the high-strength super-elastic arc-shaped pressurizing device 11, and the spiral friction mandrel 1 is placed in the high-strength wear-resistant discrete body 2; the high-strength wear-resistant discrete body 2 and the high-strength super-elastic arc-shaped pressurizing device are placed in the space surrounded by the high-strength wear-resistant discrete body 2 by the upper fixed limit device 12 and the lower fixed limit device 4 11 sealed fixed limit; one end of the modulation stiffness energy dissipation device is fixedly connected to the tail of the spiral friction core shaft 1 through a rigid connector 22, and the other end thereof is connected to a rigid support plate 23 embedded in the high-strength wear-resistant cylinder 3 through a rigid connector 22; a spring intelligent adjustment device is arranged on the upper fixed limit device 12 to adjust the prestress of the high-strength wear-resistant discrete body 2 in the high-strength wear-resistant cylinder 3; the end of the spiral friction core shaft 1 is fixedly connected to the rotating end 7 through an anchor bolt 9, the rotating end 7 is connected to the inside of the head bearing 5, and the tail of the high-strength wear-resistant cylinder 3 is connected to the tail bearing 6; an infrared sensor 16 and a stress intelligent sensor 18 are arranged inside the high-strength wear-resistant cylinder 3, and an image processor 17 and a single-chip microcomputer control processing module 19 are arranged on the outer surface of the high-strength wear-resistant cylinder 3, and the infrared sensor 16, the stress intelligent sensor 18, the image processor 17, the single-chip microcomputer control processing module 19 and the intelligent rotary valve 20 are connected through a telecommunication line 24 for communication.

As shown in Figures 3, 4, 18, 22 to 25, the spring intelligent adjustment device includes an intelligent rotary valve 20, a balanced sliding plug 13, a fastening device 14, and a spring sheet 10; the intelligent rotary valves 20 and the fastening devices 14 are four each, the intelligent rotary valve 20 is fixedly connected to the end of the fastening device 14, the other end of the fastening device 14 is connected to the spring sheet 10 through the balanced sliding plug 13, and the other end of the spring sheet 10 is fixed on the lower fixed limit device 4; when the support stress reaches the set value of the single-chip control processor 19, the intelligent rotary valve 20 rotates the fastening device 14, the fastening device 14 pushes the balanced sliding plug 13, the balanced sliding plug 13 compresses the spring sheet 10, and the spring sheet 10 deforms and pushes the high-strength super-elastic arc-shaped pressurizing device 11 to rub inward, thereby squeezing the high-strength wear-resistant discrete body 2, so that the prestress between the high-strength wear-resistant discrete body 2 increases, thereby increasing the internal friction of the support, and achieving the purpose of adjusting the damping.

The intelligent rotary valve 20 is composed of an electric motor, and the single chip control processing module 19 controls the connection and disconnection thereof, thereby controlling the rotation and stop of the electric motor inside the intelligent rotary valve 20. The intelligent rotary valve 20 is mounted on the upper fixed limit device 12, and the internal electric motor is tightly connected with the fastening device 14. When the gear of the intelligent rotary valve 20 is started, the fastening device 14 can be pushed to compress the spring sheet 10.

As shown in Figures 19 and 20, there are four high-strength super-elastic arc-shaped pressurizing devices 11. The arc surfaces on both sides of each high-strength super-elastic arc-shaped pressurizing device 11 are in contact with each other, forming a tetrahedron inside the high-strength wear-resistant cylinder 3. A spring sheet 10 is arranged on each of the four faces of the tetrahedron, and the interior of the tetrahedron is filled with high-strength wear-resistant discrete bodies 2.

As shown in Figures 26, 27 and 28, the variable stiffness energy absorbing device is composed of a plurality of variable stiffness energy absorbing plates 15 which are stacked in series through a rigid pipe clamp 21. When the spiral friction core shaft 1 is pulled and pressed by the rigid connector 22 to displace and deform the variable stiffness energy absorbing device, the displacement deformation is distributed on each variable stiffness energy absorbing plate 15 according to the stiffness of the variable stiffness energy absorbing plate 15. The number of variable stiffness energy absorbing devices is increased according to different support displacement design requirements under different working conditions, thereby adjusting the total stiffness and energy absorption capacity of the support.

As shown in FIG. 2 , a ball 8 is disposed between the rotating end 7 and the surface of the head bearing 5 to reduce the friction between the rotating end 7 and the head bearing 5 when the rotating end 7 rotates.

As shown in FIG. 2 and FIG. 5 , a ball 8 or other lubrication method is arranged in the groove where the rigid support plate 23 connects with the high-strength wear-resistant cylinder 3 to reduce the friction between the rigid support plate 23 and the groove when the spiral friction core shaft 1 drives the rigid support plate 23 to rotate.

As shown in Figures 5, 6, 7 and 8, the control and processing system for intelligently regulating stiffness and damping includes a calculation and processing module, an infrared sensor 16, an image processor 17, a stress intelligent sensor 18, a single-chip control and processing module 19, and a spring intelligent adjustment device; the input end of the single-chip control and processing module 19 is connected to the calculation and processing module to receive the digital signal output by the calculation and processing module, and the output end is connected to the intelligent rotary valve 20 of the spring intelligent adjustment device; the infrared sensor 16 is fixed inside the high-strength wear-resistant cylinder 3, and the infrared ray is directed to the spiral friction mandrel 1 to sense the displacement value of the spiral friction mandrel 1 during the support work. The stress sensor 18 is installed on the inner surface of the high-strength wear-resistant cylinder to measure and record the stress value of the high-strength wear-resistant cylinder 3 during use. The real-time data measured by the infrared sensor 16 and the stress intelligent sensor 18 is sent to the calculation and processing module, and the calculation and processing module forms a hysteresis curve with the stress value of the high-strength wear-resistant cylinder 3 and the displacement value of the spiral friction mandrel 1 and sends it to the image processor 17 for display. At the same time, the calculation processing module sends a digital signal to the single-chip control processing module 19, and the single-chip control processing module 19 controls the spring intelligent adjustment device to adjust the internal friction of the intelligent support according to the set value to achieve damping adjustment.

As shown in Figures 10, 11 and 12, the head bearing 5 is composed of two parts, both of which have threads, and the two parts of the head bearing 5 are connected by threads. The structure of the head bearing 5 is to facilitate the installation of the rotating end 7. When installed and used, the energy dissipation support is installed on the structure through the head bearing 5 and the tail bearing 6. The rotating end 7 is used to fix the spiral mandrel 1 to prevent the forces applied by the spiral mandrel 1 and the head bearing 5 from not being in a straight line during use, generating additional eccentric moments and damaging the support.

Claims (5)

1. The rotary friction type support is characterized by comprising a spiral friction mandrel (1), a high-strength wear-resistant cylinder (3), a high-strength wear-resistant discrete body (2), a head bearing (5), a tail bearing (6), a rotary end (7), an anchor bolt (9), a spring intelligent adjusting device, a high-strength super-elastic arc pressurizing device (11), an upper fixing limiting device (12) and a lower fixing limiting device (4), a variable-stiffness energy consumption device, a rigid connecting piece (22) and a rigid supporting plate (23); the spiral friction mandrel (1) is externally provided with a high-strength wear-resistant cylinder (3), the high-strength wear-resistant cylinder (3) is internally provided with a spring intelligent adjusting device and a high-strength super-elastic arc pressurizing device (11), a space surrounded by the high-strength super-elastic arc pressurizing device (11) is filled with a high-strength wear-resistant discrete body (2), and the spiral friction mandrel (1) is arranged in the high-strength wear-resistant discrete body (2); the high-strength wear-resistant discrete body (2) and the high-strength super-elastic arc-shaped pressurizing device (11) are sealed, fixed and limited by the upper fixed limiting device (12) and the lower fixed limiting device (4); one end of the variable-stiffness energy consumption device is fixedly connected with the tail part of the spiral friction mandrel (1) through a rigid connecting piece (22), and the other end of the variable-stiffness energy consumption device is connected with a rigid supporting plate (23) embedded in the high-strength wear-resistant cylinder (3) through the rigid connecting piece (22); an intelligent spring adjusting device is arranged on the upper fixed limiting device (12) to adjust and control the prestress of the high-strength wear-resistant discrete body (2) in the high-strength wear-resistant cylinder (3); the end part of the spiral friction mandrel (1) is fixedly connected with a rotary end head (7) through an anchor bolt (9), the rotary end head (7) is connected inside a head bearing (5), and the tail part of the high-strength wear-resistant cylinder (3) is connected with a tail bearing (6); an infrared sensor (16) and a stress intelligent sensor (18) are arranged inside the high-strength wear-resistant cylinder (3), an image processor (17) and a single chip microcomputer control processing module (19) are arranged on the outer surface of the high-strength wear-resistant cylinder (3), and the infrared sensor (16), the stress intelligent sensor (18), the image processor (17), the single chip microcomputer control processing module (19) and the intelligent rotary valve (20) are in communication connection through a telecommunication line (24); the variable-pitch stiffness energy dissipation device is formed by overlapping a plurality of groups of variable-pitch stiffness energy dissipation plates (15) in series through rigid pipe hoops (21), when the spiral friction mandrel (1) is subjected to tension-compression variable-pitch stiffness energy dissipation devices through rigid connectors (22) to perform displacement deformation, the displacement deformation is distributed on each variable-pitch stiffness energy dissipation plate (15) according to the stiffness of the variable-pitch stiffness energy dissipation plate (15), the number of variable-pitch stiffness energy dissipation devices is increased according to different support displacement design requirements under different working conditions, and then the total stiffness and energy dissipation capacity of a support are adjusted;

The control processing system for intelligently regulating and controlling the rigidity and the damping comprises a calculation processing module, an infrared sensor (16), an image processor (17), a stress intelligent sensor (18), a singlechip control processing module (19) and a spring intelligent regulating device; the input end of the singlechip control processing module (19) is connected with the calculation processing module, the digital signal output by the calculation processing module is received, and the output end of the singlechip control processing module is connected with an intelligent rotary valve (20) of the intelligent spring adjusting device; real-time data measured by the infrared sensor (16) and the stress intelligent sensor (18) are transmitted to the calculation processing module, the calculation processing module processes the data and then displays the data in the image processor (17), meanwhile, digital signals are transmitted to the singlechip control processing module (19), and the singlechip control processing module (19) controls the starting of the intelligent spring adjusting device according to a set value.

2. The intelligent stiffness damping-regulating rotary friction type support according to claim 1, wherein the spring intelligent adjusting device comprises an intelligent rotary valve (20), a balance sliding plug (13), a fastening device (14) and a spring piece (10); the intelligent rotary valves (20) and the fastening devices (14) are four, the intelligent rotary valves (20) are fixedly connected with the end parts of the fastening devices (14), the other ends of the fastening devices (14) are connected with the spring pieces (10) through the balance sliding plugs (13), and the other ends of the spring pieces (10) are fixed on the lower fixed limiting device (4); when the supporting stress reaches the set value of the singlechip control processing module (19), the intelligent rotary valve (20) rotates the fastening device (14), the fastening device (14) pushes the balance sliding plug (13), the balance sliding plug (13) compresses the spring piece (10), the spring piece (10) deforms to push the high-strength super-elastic arc-shaped pressurizing device (11) to rub inwards, so that the high-strength wear-resistant discrete bodies (2) are extruded, the prestress among the high-strength wear-resistant discrete bodies (2) is increased, the internal friction force of the support is increased, and the damping adjustment purpose is achieved.

3. The intelligent rigidity damping-regulating rotary friction type support according to claim 1, wherein the total number of the high-strength super-elastic arc-shaped pressurizing devices (11) is four, the cambered surfaces on two sides of each high-strength super-elastic arc-shaped pressurizing device (11) are in contact with each other, a tetrahedron is formed by surrounding the high-strength wear-resistant cylinder (3), and each of four surfaces of the tetrahedron is provided with a spring piece (10), and the tetrahedron is internally filled with the high-strength wear-resistant discrete body (2).

4. The intelligent stiffness damping-controlled rotary friction type support according to claim 1, wherein balls (8) are arranged in the space between the rotary end head (7) and the surface of the head bearing (5), so that friction between the rotary end head (7) and the head bearing (5) during rotation is reduced.

5. The intelligent rigidity damping-adjusting rotary friction type support according to claim 1 is characterized in that balls (8) are arranged in grooves where a rigid support plate (23) is connected with a high-strength wear-resistant cylinder (3), and friction between the rigid support plate (23) and the grooves when the rigid support plate (23) is driven to rotate by a spiral friction mandrel (1) is reduced.