CN107829891B - Vibration-absorbing power generation device - Google Patents
Vibration-absorbing power generation device Download PDFInfo
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- CN107829891B CN107829891B CN201710953544.3A CN201710953544A CN107829891B CN 107829891 B CN107829891 B CN 107829891B CN 201710953544 A CN201710953544 A CN 201710953544A CN 107829891 B CN107829891 B CN 107829891B
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- box body
- vibration
- power generation
- steel rail
- ballastless track
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G1/00—Spring motors
Abstract
The invention provides a vibration-absorption power generation device, which belongs to the field of vibration-absorption power generation, is arranged between the bottom of a steel rail and the top surface of a ballastless track, and comprises a sliding unit, a spring damping unit, an inertial container, a power generator and an energy accumulator, wherein the sliding unit is connected to the bottom of the steel rail and slides relative to the steel rail; the spring damping unit is connected to the bottom of the sliding unit and vibrates along with the vibration of the steel rail; the inertial container is connected with the spring damping unit, the generator is fixed in the inertial container, and a rotor of the generator and a rotating nut of the generator are mutually pressed to transmit power through friction to generate electricity; the energy accumulator is arranged on the ballastless track outside the steel rail and connected with the coil winding on the rotor of the generator through a lead. The vibration absorption power generation device provided by the invention is a spring-damping-inertial capacity type vibration absorber, has a good effect on the high-frequency vibration of the steel rail on the ballastless track, enriches the vibration absorption mode of the ballastless track, recycles the vibration and improves the energy utilization rate.
Description
Technical Field
The invention belongs to the technical field of vibration absorption power generation, and particularly relates to a vibration absorption power generation device applied to a ballastless track.
Background
The ballastless track is a novel railway track technology, and is increasingly applied to track traffic based on the characteristics of good smoothness, high stability and long service life. However, the ballastless track also has the defects of high track rigidity and poor vibration damping performance. Therefore, the vibration reduction technology of the ballastless track is particularly important.
The traditional 'spring-damping-mass block' vibration absorber is not limited by frequency band, and under the condition of good design, the device can completely convert the vibration of a vibrating body into the vibration of a mass block, thereby achieving the purpose of absorbing vibration.
The inertial container is a novel device used in a vehicle suspension, and converts linear reciprocating motion into rotary motion, so that not only is the motion form converted, but also the inertia is encapsulated, and the effect of a mass block is achieved. At present, such devices have been used in vehicles such as racing cars, motorcycles, and the like in foreign countries. The use of inerters in rail damping has never been attempted.
Disclosure of Invention
The invention aims to provide a vibration-absorbing power generation device, which uses an inertial container to replace a mass block in a traditional 'spring-damping-mass block' vibration absorber so as to solve the technical problem of single vibration-absorbing mode of a ballastless track in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a power generation facility shakes is inhaled installs between rail bottom and ballastless track top surface, includes: the sliding unit is connected to the bottom of the steel rail and slides relative to the steel rail;
the spring damping unit is fixedly connected to the bottom of the sliding unit and vibrates along with the vibration of the steel rail;
the inerter comprises a box body fixedly connected with the ballastless track, a rotating nut arranged in the box body and rotationally connected with the box body, and a ball screw rotationally connected with the rotating nut, wherein the upper end of the ball screw is fixedly connected with the spring damping unit;
the generator is fixed in the box body, and a rotor of the generator and the rotating nut are mutually pressed to transmit power through friction so as to generate electricity;
and the energy accumulator is arranged on the ballastless track outside the steel rail and is connected with the coil winding on the rotor of the generator through a lead.
Further, the sliding unit comprises a fixed plate fixedly connected with the bottom of the steel rail and a sliding plate fixedly connected with the spring damping unit, at least one row of cylindrical rollers is arranged between the fixed plate and the sliding plate, the circumferential surfaces of the cylindrical rollers are tangent to the fixed plate and the sliding plate at the same time, the axes of the cylindrical rollers are parallel to the extending direction of the steel rail, a limiting groove for placing and limiting the cylindrical rollers is arranged on the fixed plate and/or the sliding plate, the cylindrical rollers are arranged in the limiting groove in a row and roll relatively to enable the fixed plate and the sliding plate to slide relatively, and the length of the limiting groove is greater than the sum of the outer diameters of the cylindrical rollers arranged in the row.
Furthermore, three rows of the cylindrical rollers are arranged between the fixed plate and the sliding plate, and the limiting grooves for limiting the three rows of the cylindrical rollers are respectively and oppositely arranged on the fixed plate and the sliding plate.
Further, the depth of the limiting groove is smaller than the radius of the cylindrical roller.
Further, the spring damping unit comprises at least two springs, at least one damper and a connecting plate for fixing the springs and the damper, the upper ends of the springs and the damper are fixedly connected with the lower surface of the sliding plate, the lower ends of the springs and the damper are fixedly connected with the connecting plate, and the upper end of the ball screw is fixed on the lower surface of the connecting plate.
Furthermore, the spring damping unit comprises three springs and three dampers, wherein the three springs and the three dampers surround a circle and are alternately and uniformly fixed on the connecting plate.
Furthermore, the device is also provided with an actuator and a signal processor, wherein the two ends of the actuator are respectively fixedly connected with the connecting plate and the ballastless track, the signal processor is connected with the actuator through a data line, the signal processor is arranged outside the box body or in the box body and is connected with the generator through a wire, and the energy accumulator is connected with the signal processor through a wire.
Furthermore, a packaging cylinder fixedly connected with the ballastless track is further arranged, the spring damping unit and the inertial container are packaged in the packaging cylinder, and the upper edge of the packaging cylinder is in sliding and sealing fit with the lower surface of the sliding plate.
Furthermore, the box body comprises an upper box body and a lower box body which is covered with a sealing cover, the upper end and the lower end of the rotating nut are respectively connected with the upper box body and the lower box body in a rotating mode, a cylinder which is coaxial with the ball screw and is in clearance fit with the ball screw is arranged downwards at the bottom of the lower box body, the cylinder is communicated with the inner cavity of the lower box body, and the lower end of the cylinder is fixedly connected with the ballastless track.
Furthermore, stepped holes are respectively formed in the parts of the upper box body and the lower box body which are rotatably connected with the rotary nut, bearings are installed in the stepped holes, and the upper end and the lower end of the rotary nut are rotatably connected with the upper box body and the lower box body through the bearings respectively; the upper end and the lower end of the rotary nut are respectively provided with a circular truncated cone protruding upwards and downwards, the outer diameter of the circular truncated cone is smaller than that of the rotary nut, the bearing is installed on the periphery of the circular truncated cone, and the upper box body and the lower box body are respectively provided with a bearing position for installing the bearing.
The vibration absorption power generation device provided by the invention has the beneficial effects that:
(1) compared with the prior art, the vibration-absorbing power generation device provided by the invention has the advantages that the mass block in the traditional 'spring-damping-mass block' vibration absorber is replaced by the inertial container to form the 'spring-damping-inertial container' type vibration absorber, and meanwhile, the vibration in the vertical direction of the steel rail is converted into the rotation of the rotating nut in the inertial container for power generation, so that the 'spring-damping-inertial container' type vibration absorber has a good effect on the high-frequency vibration of the steel rail on the ballastless track, the technical problem that the vibration-absorbing mode in the ballastless track is single in the prior art is solved, the vibration is recycled, and the energy utilization rate is improved;
(2) compared with the prior art, the vibration reduction device is applied to the ballastless track, the vibration reduction of the steel rail and the ballastless track is realized, the structure of the existing track is not changed, and the installation and transformation cost is reduced;
(3) according to the invention, the vertical vibration of the steel rail is transferred to the ball screw in the inertial container and then converted into the rotation of the rotating nut, so that the vertical vibration of the steel rail is weakened, and the service life of the ballastless track is prolonged;
(4) the rotation of the rotating nut in the inerter drives the rotor in the generator to rotate for generating electricity, so that the kinetic energy of vibration is converted into electric energy, and the energy utilization rate is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vibration-absorbing power generation apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of an inerter in the vibration absorption power generation apparatus according to the embodiment of the present invention;
fig. 3 is a schematic perspective view of the vibration-absorbing power generation apparatus according to the embodiment of the present invention after being packaged;
fig. 4 is a schematic view of an installation structure of a vibration-absorbing power generation apparatus according to an embodiment of the present invention;
fig. 5 is a schematic view of an internal structure of a vibration-absorbing power generation apparatus according to an embodiment of the present invention;
fig. 6 is an enlarged view of a partial structure of the vibration-absorbing power generation apparatus according to the embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a steel rail; 2-a sliding unit; 21-a sliding plate; 22-a fixing plate; 23-a cylindrical roller; 3-a spring; 4-a damper; 5-connecting plates; 6-a generator; 7-inerter; 71-ball screw; 72-a bearing; 73-upper box body; 74-a swivel nut; 75-lower box body; 8-an energy storage device; 9-ballastless track; 10-packaging the cylinder; 11-a signal processor; 12-an actuator.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and fig. 2 together, the vibration absorption power generation device provided by the present invention will now be described. Inhale power generation facility that shakes installs between 1 bottom of rail and 9 top surfaces of ballastless track, include: a sliding unit 2 connected to the bottom of the rail 1 and sliding relative to the rail 1;
a spring damping unit fixedly connected to the bottom of the sliding unit 2 and vibrating with the vibration of the rail 1;
the inerter 7 comprises a box body fixedly connected with the ballastless track 9, a rotating nut 74 arranged in the box body and rotationally connected with the box body, and a ball screw 71 rotationally connected with the rotating nut 74, wherein the upper end of the ball screw 71 is fixedly connected with the spring damping unit;
a generator 6 fixed in the case, the rotor of which is pressed against the rotary nut 74 to generate electricity by transmitting power through friction;
and the energy storage device 8 is arranged on the ballastless track 9 on the outer side of the steel rail 1 and is connected with the coil winding on the rotor of the generator 6 through a lead.
Compared with the prior art, the vibration-absorbing power generation device provided by the invention has the advantages that the mass block in the traditional spring-damping-mass block vibration absorber is replaced by the inertial container to form the spring-damping-inertial container type vibration absorber, and meanwhile, the vibration in the vertical direction of the steel rail is converted into the rotation of the rotating nut 74 in the inertial container to generate power, so that the spring-damping-inertial container type vibration absorber has a good effect on the high-frequency vibration of the steel rail on the ballastless track 9, the technical problem that the vibration-absorbing mode in the ballastless track 9 is single in the prior art is solved, the vibration is recycled, and the energy utilization rate is improved.
The vibration-absorbing power generation device provided by the invention is applied to a ballastless track 9 and is fixed between the bottom of a steel rail 1 and the top surface of the ballastless track 9, and has the advantages that the original structure of the ballastless track is not changed, the installation and transformation cost is reduced, and the vibration of the steel rail is weakened, so that the vibration of the whole ballastless track is quickly attenuated, the damage to the ballastless track caused by the vibration is reduced, and the service life of the ballastless track is prolonged.
According to the invention, the vertical vibration of the steel rail is transmitted to the ball screw 71 in the inertial container 7 and then converted into the rotation of the rotating nut 74, so that the vertical vibration of the steel rail is weakened, and the service life of the ballastless track is prolonged; the rotation of the rotating nut 74 in the inerter 7 drives the rotor in the generator 6 to rotate for generating electricity, so that the kinetic energy of vibration is converted into electric energy, and the energy utilization rate is improved.
Further, the rotor of the generator 6 rotates to generate electricity by cutting magnetic lines, the lead is connected with a coil winding wound on the rotor, the rotor can generate electricity when rotating forwards or backwards, the generated electric energy is transmitted to the energy storage device 8, and the energy storage device 8 can store the electric energy. Wherein said energy storage 8 enables an initial storage of electrical energy for rectification and further use.
The energy accumulator 8 is placed on a ballastless track 9 on the outer side of the steel rail 1 and connected with the generator 6 through a lead, and the lead penetrates through a small hole preset in a box body of the inertial container 7.
Referring to fig. 2, the inertia container 7 is further described in terms of structure and working principle, the bearing 72 and the rotating nut 74 are in interference fit, the rotating nut 74 and the box body can rotate relative to each other through the bearing 72, the ball screw 71 passes through the box body and the rotating nut 74 and is rotatably connected with the rotating nut 74, the length of the upper end of the thread in the ball screw 71, which exceeds the rotating nut 74, is greater than the stroke of the ball screw 71, the box body is provided with a preset small hole, and the generator 6 and the energy accumulator 8 are connected through a lead wire passing through the preset small hole.
Further, referring to fig. 1 and fig. 5, as an embodiment of the vibration absorption power generation apparatus provided by the present invention, the sliding unit 2 comprises a fixed plate 22 fixedly connected with the bottom of the steel rail 1 and a sliding plate 21 fixedly connected with the spring damping unit, at least one row of cylindrical rollers 23 is provided between the fixed plate 22 and the sliding plate 21, the circumferential surfaces of the cylindrical rollers 23 are simultaneously tangent to the fixed plate 22 and the sliding plate 21, the axial line of the cylindrical roller 23 is parallel to the extending direction of the steel rail 1, a limit groove for placing and limiting the cylindrical roller 23 is arranged on the fixed plate 22 and/or the sliding plate 21, the cylindrical rollers 23 are arranged in a row in the limiting groove and roll relatively to slide the fixed plate 22 and the sliding plate 21 relatively, and the length of the limiting groove is greater than the sum of the outer diameters of the cylindrical rollers 23 arranged in a row.
Further, compared with the prior art, the vibration-absorbing power generation device provided by the invention is applied to the ballastless track 9, the sliding plate 21 of the sliding unit 2 can realize relative sliding along the vertical direction of the steel rail 1, so that only the vertical vibration of the steel rail 1 is transmitted to the spring 3 and the damper 4, and the vibration-absorbing principle shows that under the condition of good design, the vertical vibration of the steel rail 1 can be converted into the vertical movement of the ball screw 71 in the inertia container 7, so that the rotation of the rotating nut 74 is caused, the rotor of the generator 6 is driven to rotate, and the magnetic force lines are cut to generate electric energy.
Further, referring to fig. 1 and 5, as an embodiment of the vibration absorption and power generation apparatus provided by the present invention, three rows of the cylindrical rollers 23 are disposed between the fixed plate 22 and the sliding plate 21, and the limiting grooves for limiting the three rows of the cylindrical rollers 23 are respectively and oppositely disposed on the fixed plate 22 and the sliding plate 21. The length of the limiting groove is greater than that of the row of the cylindrical rollers 23, namely, the limiting groove is provided with displacement of the cylindrical rollers 23 along with vibration of the steel rail. In addition, in the present embodiment, the fixed plate 22 and the sliding plate 21 are both circular, and of the three rows of the cylindrical rollers 23, the middle row has the longest length, and the two rows on both sides have the same length. It is further explained that there is a gap between the fixed plate 22 and the sliding plate 21 to facilitate the rolling of the cylindrical rollers 23.
Further, referring to fig. 1, as a specific embodiment of the vibration absorption and power generation apparatus provided by the present invention, the depth of the limiting groove is smaller than the radius of the cylindrical roller 23.
Further, referring to fig. 1, as a specific embodiment of the vibration-absorbing power generation apparatus provided by the present invention, the connection between the limiting grooves of the fixed plate 22 and the sliding plate 21 and the cylindrical roller 23 should satisfy the tightness along the axial direction of the cylindrical roller 23 and the rolling property perpendicular to the axial direction, that is, the relative rolling between the cylindrical roller 23 and the fixed plate 22 and the sliding plate 21 can be ensured, and at the same time, the roller cannot be separated from the limiting groove under the condition of a vertical force, that is, the overall rigidity of the sliding unit 2 in the perpendicular direction can be ensured.
Further, referring to fig. 1 and 5, as a specific embodiment of the vibration absorption power generation apparatus provided by the present invention, the spring damping unit includes at least two springs 3, at least one damper 4, and a connecting plate 5 for fixing the springs 3 and the damper 4, upper ends of the springs 3 and the damper 4 are fixedly connected to a lower surface of the sliding plate 21, lower ends of the springs 3 and the damper 4 are fixedly connected to the connecting plate 5, and an upper end of the ball screw 71 is fixed to a lower surface of the connecting plate 5. When the sliding unit 2, the spring 3, the damper 4, the connecting plate 5 and the inerter 7 are installed, the vertical centering property is required to be met, and the situation that deflection is not generated in the force transmission process is guaranteed.
Further, referring to fig. 5, as a specific embodiment of the vibration absorption power generation apparatus provided by the present invention, the spring damping unit includes three springs 3 and three dampers 4, and the three springs 3 and the three dampers 4 surround to form a circle, and are fixed on the connecting plate 5 at intervals and uniformly.
Further, referring to fig. 5 and fig. 6, as a specific embodiment of the vibration-absorbing power generation apparatus provided by the present invention, an actuator 12 and a signal processor 11 are further provided, wherein two ends of the actuator 12 are respectively fixedly connected to the connecting plate 5 and the ballastless track 9, the signal processor 11 is connected to the data line of the actuator 12, the signal processor 11 is disposed outside the tank or inside the tank and connected to the generator 6 through a wire, and the energy storage device 8 is connected to the signal processor 11 through a wire.
In this embodiment, the signal processor 11 and the actuator 12 are added:
the signal processor 11 is connected with the generator 6 through a wire, penetrates through a preset small hole on the lower box body 75, and is connected with the energy storage device 8 through a wire;
and the upper end of the actuator 12 is fixedly connected with the connecting plate 5, the lower end of the actuator is fixedly connected with the top surface of the ballastless track 9, and the actuator is connected with the signal processor 10 through a data line, can extend and shorten and can move along the vertical direction.
The working principle of other parts is the same as that of the previous embodiment, the electric energy generated by the generator 6 is transmitted to the signal processor 11 through a lead, the signal processor 11 receives the current generated by the generator 6 and senses the intensity of the current, then the intensity information of the current is transmitted to the actuator 12 through a data line, and meanwhile, the current is continuously transmitted to the energy storage device 8 through the lead, so that the storage of the electric energy is completed.
Further, the actuator 12 receives the current intensity information from the signal processor 11, and controls the movement of the actuator 12 in the direction perpendicular to the ball screw 71 in the inerter 7 according to the intensity of the current, when the current is weak, the actuator 12 does not function, when the current is strong, the movement frequency of the ball screw 71 is high, and when the current is strong, the actuator 12 reduces the movement frequency of the actuator 12 and the ball screw 71, thereby playing a role in protecting the inerter.
The structure of this embodiment after packaging is shown in fig. 3.
Further, referring to fig. 3 and 4, as an embodiment of the vibration absorption power generation device provided by the present invention, an encapsulation cylinder 10 fixedly connected to the ballastless track 9 is further provided, the encapsulation cylinder 10 encapsulates the spring damping unit and the inertia container 7, and an upper edge of the encapsulation cylinder 10 slides and is in sealing fit with a lower surface of the sliding plate 21.
Further, referring to fig. 3, the encapsulation of the present invention is described, where the encapsulation cylinder 10 is a cylinder, the size of which is slightly larger than the size of the internal structure, the bottom end of the cylinder is separately and fixedly connected with the top surface of the ballastless track 9, and the upper end portion of the cylinder is in sealed and sliding connection with the lower surface of the sliding plate 21, that is, the encapsulation cylinder 10 does not affect the vertical movement of the sliding plate 21, and meanwhile, the encapsulation cylinder 10 can also realize relative sliding with the connecting plate 5 shown in fig. 1, so that the encapsulation cylinder 10 can limit the movement of the internal structure to the vertical movement, ensure that the internal structure does not deviate from the movement, and can also play a role in protection.
Further, referring to fig. 1 and 5, the installation size of the embodiment of the present invention is preliminarily calculated to ensure the rationality of the installation size, but the design of the installation size is not limited in the embodiment of the present invention, and when necessary, a groove may be formed on the ballastless track 9 to ensure the installation space requirement of the device.
Further, referring to fig. 2, as a specific embodiment of the vibration absorption power generation apparatus provided by the present invention, the box body includes an upper box body 73 and a lower box body 75 hermetically sealed to the upper box body 73, the upper and lower ends of the rotating nut 74 are respectively rotatably connected to the upper box body 73 and the lower box body 75, a sleeve coaxial with the ball screw 71 and in clearance fit with the ball screw 71 is downwardly disposed at the bottom of the lower box body 75, the sleeve is communicated with an inner cavity of the lower box body 75, and the lower end of the sleeve is used for being fixedly connected to the ballastless track 9.
Further, referring to fig. 2, as a specific embodiment of the vibration absorption power generation apparatus provided by the present invention, stepped holes are respectively formed at the positions where the upper case 73 and the lower case 75 are rotatably connected to the swivel nut 74, a bearing 72 is installed in each stepped hole, and the upper end and the lower end of the swivel nut 74 are rotatably connected to the upper case 73 and the lower case 75 through the bearing 72; the upper end and the lower end of the rotating nut 74 are respectively provided with a circular truncated cone protruding upwards and downwards, the outer diameter of the circular truncated cone is smaller than that of the rotating nut 74, the bearing 72 is installed on the periphery of the circular truncated cone, and the upper box 73 and the lower box 75 are respectively provided with bearing positions for installing the bearing 72.
Further, referring to fig. 2, as an embodiment of the vibration absorption power generation apparatus provided by the present invention, the sleeve is provided with a chassis having an outer diameter larger than that of the sleeve. The base plate can also be a square plate, the surface area of which is larger than the cross section of the sleeve, so as to support the stability.
Further, referring to fig. 2, as a specific embodiment of the vibration absorption power generation apparatus provided by the present invention, the outer circumference of the generator 6 is covered with a friction layer, and the friction layer is any one of asbestos, leather, rubber, plastic, or fiber. In this embodiment, the rotating nut 74 and the generator 6 are both friction wheels, preferably, one of the friction wheels is made of steel or cast iron material, and the other friction wheel has a working surface adhered with a layer of asbestos, leather, rubber cloth, plastic or fiber, etc., and the wheel surface is softer and should be used as a driving wheel, so as to avoid the occurrence of slippage in transmission and the influence on transmission quality caused by local wear of the wheel surface of a driven wheel. Wherein, the outer circumference of the rotating nut 74 of the inerter 7 is coated with a friction layer, and the friction layer is any one of asbestos, leather, rubber, plastic or fiber.
Further, referring to fig. 2, as a specific embodiment of the vibration absorption and power generation apparatus provided by the present invention, the outer circumference of the rotating nut 74 is covered with a friction layer, and the friction layer is any one of asbestos, leather, rubber, plastic or fiber.
Further, referring to fig. 2, as a specific embodiment of the vibration absorption power generation apparatus provided by the present invention, a lower step seam allowance is provided at a mouth portion of the lower case 75 connected to the upper case 73, and an upper step seam allowance matched with the lower step seam allowance is provided at a mouth portion of the upper case 73. The upper box body is reliably covered on the lower box body 75 through the step rabbets which are matched up and down, and the upper box body is prevented from moving and dislocating.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Inhale power generation facility that shakes installs between rail bottom and ballastless track top surface, its characterized in that includes:
the sliding unit is connected to the bottom of the steel rail and slides relative to the steel rail;
the spring damping unit is fixedly connected to the bottom of the sliding unit and vibrates along with the vibration of the steel rail;
the inerter comprises a box body fixedly connected with the ballastless track, a rotating nut arranged in the box body and rotationally connected with the box body, and a ball screw rotationally connected with the rotating nut, wherein the upper end of the ball screw is fixedly connected with the spring damping unit;
the generator is fixed in the box body, and a rotor of the generator and the rotating nut are mutually pressed to transmit power through friction so as to generate electricity;
the energy accumulator is arranged on the ballastless track outside the steel rail and is connected with the coil winding on the rotor of the generator through a lead;
the sliding unit comprises a fixed plate fixedly connected with the bottom of the steel rail and a sliding plate fixedly connected with the spring damping unit, at least one row of cylindrical rollers is arranged between the fixed plate and the sliding plate, the circumferential surfaces of the cylindrical rollers are tangent to the fixed plate and the sliding plate at the same time, the axes of the cylindrical rollers are parallel to the extending direction of the steel rail, a limiting groove for placing and limiting the cylindrical rollers is arranged on the fixed plate and/or the sliding plate, the cylindrical rollers are arranged in the limiting groove in a row and roll relatively to enable the fixed plate and the sliding plate to slide relatively, and the length of the limiting groove is greater than the sum of the outer diameters of the cylindrical rollers arranged in the row;
the spring damping unit comprises at least two springs, at least one damper and a connecting plate for fixing the springs and the damper, the upper ends of the springs and the damper are fixedly connected with the lower surface of the sliding plate, the lower ends of the springs and the damper are fixedly connected with the connecting plate, and the upper end of the ball screw is fixed on the lower surface of the connecting plate;
the box body comprises an upper box body and a lower box body, wherein the lower box body is sealed and closed to the upper box body, the upper end and the lower end of the rotating nut are respectively rotatably connected with the upper box body and the lower box body, a cylinder which is coaxial with the ball screw and is in clearance fit with the ball screw is downwards arranged at the bottom of the lower box body, the cylinder is communicated with the inner cavity of the lower box body, and the lower end of the cylinder is fixedly connected with the ballastless track.
2. The vibration-absorbing power generation device according to claim 1, wherein: and three rows of cylindrical rollers are arranged between the fixed plate and the sliding plate, and the fixed plate and the sliding plate are respectively and oppositely provided with the limiting grooves for limiting the three rows of cylindrical rollers.
3. The vibration-absorbing power generation device according to claim 1, wherein: the depth of the limiting groove is smaller than the radius of the cylindrical roller.
4. The vibration-absorbing power generation device according to claim 1, wherein: the spring damping unit comprises three springs and three dampers, wherein the three springs and the three dampers surround a circle and are alternately and uniformly fixed on the connecting plate.
5. The vibration-absorbing power generation device according to claim 1, wherein: the device is characterized by further comprising an actuator and a signal processor, wherein the two ends of the actuator are fixedly connected with the connecting plate and the ballastless track respectively, the signal processor is connected with the actuator through a data line, the signal processor is arranged outside the box body or in the box body and connected with the generator through a wire, and the energy accumulator is connected with the signal processor through a wire.
6. The vibration-absorbing power generation device according to claim 1, wherein: the spring damping unit and the inertial container are packaged in the packaging cylinder, and the upper edge of the packaging cylinder is in sliding and sealing fit with the lower surface of the sliding plate.
7. The vibration-absorbing power generation device according to claim 1, wherein: step holes are respectively formed in the parts of the upper box body and the lower box body which are rotatably connected with the rotary nut, bearings are arranged in the step holes, and the upper end and the lower end of the rotary nut are rotatably connected with the upper box body and the lower box body through the bearings respectively; the upper end and the lower end of the rotary nut are respectively provided with a circular truncated cone protruding upwards and downwards, the outer diameter of the circular truncated cone is smaller than that of the rotary nut, the bearing is installed on the periphery of the circular truncated cone, and the upper box body and the lower box body are respectively provided with a bearing position for installing the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953544.3A CN107829891B (en) | 2017-10-13 | 2017-10-13 | Vibration-absorbing power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953544.3A CN107829891B (en) | 2017-10-13 | 2017-10-13 | Vibration-absorbing power generation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107829891A CN107829891A (en) | 2018-03-23 |
| CN107829891B true CN107829891B (en) | 2021-12-17 |
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| CN201710953544.3A Active CN107829891B (en) | 2017-10-13 | 2017-10-13 | Vibration-absorbing power generation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108488050A (en) * | 2018-05-23 | 2018-09-04 | 眉山中车制动科技股份有限公司 | A kind of changement for railway freight-car vibration generating device |
| CN108448813B (en) * | 2018-05-23 | 2024-03-19 | 眉山中车制动科技股份有限公司 | Vibration power generation device for railway wagon |
| CN108799030A (en) * | 2018-05-25 | 2018-11-13 | 北京航空航天大学 | Electromagnetic type vibration damping and energy-absorbing power generator |
| CN111926632A (en) * | 2020-08-11 | 2020-11-13 | 中车株洲电力机车有限公司 | Energy storage type steel rail vibration absorber |
| CN114320715B (en) * | 2021-12-31 | 2023-05-02 | 同济大学 | Inertial-energy-point vibration absorption type wave energy power generation system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20120126522A (en) * | 2011-05-12 | 2012-11-21 | 정병진 | Vibration Damping and Power Generation System of Mechanical Equipment |
| CN103343496A (en) * | 2013-07-10 | 2013-10-09 | 铁道第三勘察设计院集团有限公司 | Rail vibration absorber |
| CN203546523U (en) * | 2013-07-30 | 2014-04-16 | 中铁二院工程集团有限责任公司 | Passive dynamic vibration absorbing track slab |
| CN105421165A (en) * | 2015-12-30 | 2016-03-23 | 中铁二院工程集团有限责任公司 | Steel rail fixing structure for ballastless track and steel rail supporting device of steel rail fixing structure |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120126522A (en) * | 2011-05-12 | 2012-11-21 | 정병진 | Vibration Damping and Power Generation System of Mechanical Equipment |
| CN103343496A (en) * | 2013-07-10 | 2013-10-09 | 铁道第三勘察设计院集团有限公司 | Rail vibration absorber |
| CN203546523U (en) * | 2013-07-30 | 2014-04-16 | 中铁二院工程集团有限责任公司 | Passive dynamic vibration absorbing track slab |
| CN105421165A (en) * | 2015-12-30 | 2016-03-23 | 中铁二院工程集团有限责任公司 | Steel rail fixing structure for ballastless track and steel rail supporting device of steel rail fixing structure |
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