阅读说明：本技术 一种多维度动力的轨道隔振器 (Rail vibration isolator with multi-dimensional power ) 是由 潘清云 于 2019-09-20 设计创作，主要内容包括：本发明公开了一种多维度动力的轨道隔振器,其结构包括混凝土道床连接块、隔振器主体、隔振器支撑基板、加强筋、混凝土道床支撑柱,隔振器支撑基板水平安装于轨道地面上,隔振器主体与隔振器支撑基板相互垂直,加强筋与隔振器主体、隔振器支撑基板焊接在一起,轨道隔振器通过安装有磁流变液均布结构,当地铁经历长时间停运后重新运行时,隔振器工作时通过剪切混合与离心力混合相结合,促使隔振器内的铁磁颗粒与承载液混合均匀,保证隔振器使用时的阻尼力大小,提升隔振器的性能,且避免隔振器因铁齿颗粒与承载液混合不均造成损坏,延长隔振器使用寿命。(The invention discloses a multi-dimensional dynamic rail vibration isolator which structurally comprises a concrete track bed connecting block, a vibration isolator main body, a vibration isolator supporting base plate, a reinforcing rib and a concrete track bed supporting column, wherein the vibration isolator supporting base plate is horizontally arranged on the ground of a rail, the vibration isolator main body and the vibration isolator supporting base plate are mutually vertical, the reinforcing rib is welded with the vibration isolator main body and the vibration isolator supporting base plate together, the rail vibration isolator is provided with a magnetorheological fluid uniform distribution structure, when the subway restarts after long-time shutdown, the shearing mixing and the centrifugal force mixing are combined when the vibration isolator works, so that ferromagnetic particles and the bearing liquid in the vibration isolator are uniformly mixed, the damping force of the vibration isolator in use is ensured, the performance of the vibration isolator is improved, and the damage of the vibration isolator caused by uneven mixing of iron tooth particles and the bearing liquid is avoided, and the service life of the vibration isolator is prolonged.)

1. The utility model provides a track isolator of multidimension degree power, its structure includes concrete track bed connecting block (1), isolator main part (2), isolator supporting baseplate (3), strengthening rib (4), concrete track bed support column (5), its characterized in that:

the vibration isolator support base plate (3) is horizontally arranged on the ground of a track, the vibration isolator main body (2) is perpendicular to the vibration isolator support base plate (3), the reinforcing ribs (4) are welded with the vibration isolator main body (2) and the vibration isolator support base plate (3), the concrete track bed support columns (5) are in clearance fit with the vibration isolator main body (2), and the concrete track bed connecting blocks (1) are abutted to the concrete track bed support columns (5);

the vibration isolator main body (2) consists of a controllable damping channel (2a), a magnetorheological fluid mounting groove (2b), a magnetorheological fluid uniform distribution structure (2c), a damping telescopic cylinder (2d), a piston block (2e), an electromagnetic coil (2f) and a driving rod (2g), the shock-absorbing telescopic cylinder (2d) is in clearance fit with the concrete road bed supporting column (5), the driving rod (2g) is connected with the damping telescopic cylinder (2d) in a penetrating way, the piston block (2e) is vertical to the driving rod (2g), the electromagnetic coils (2f) are uniformly distributed in the piston block (2e), the controllable damping channels (2a) are nested at two ends of the piston block (2e), the magnetorheological fluid mounting groove (2b) is positioned inside the shock absorption telescopic cylinder (2d), the magnetorheological fluid uniform distribution structure (2c) is in clearance fit with the driving rod (2 g).

2. The multi-dimensional dynamic orbital isolator of claim 1 wherein: magnetorheological suspensions equipartition structure (2c) comprises drive screw (c1), rotatory mount (c2), equipartition structure shell (c3), centrifugal mixer (c4), shearing mixing arrangement (c5), equipartition structure shell (c3) nestification is in shock attenuation telescoping cylinder (2d) bottom, top in equipartition structure shell (c3) is installed in centrifugal mixer (c4), drive screw (c1) and centrifugal mixer (c4) mutually perpendicular, shearing mixing arrangement (c5) and centrifugal mixer (c4) intermeshing, rotatory mount (c2) and centrifugal mixer (c4), shearing mixing arrangement (c5) adopt clearance fit.

3. The multi-dimensional dynamic orbital isolator of claim 2, wherein: centrifugal mixer (c4) comprises screw rod connecting axle (c41), centrifugal driving disk (c42), magnetic current liquid mixer (c43), shearing drive structure (c44), clutch (c45), install inside equipartition structure shell (c3) centrifugal driving disk (c42), screw rod connecting axle (c41) and drive screw (c1) lock, magnetic current liquid mixer (c43) is that annular array is even in centrifugal driving disk (c42) upper surface, clutch (c45) is located centrifugal driving disk (c42) bottom, shearing drive structure (c44) and equipartition structure shell (c3) inner wall lock are in the same place.

4. The multi-dimensional dynamic orbital isolator of claim 3 wherein: the magnetorheological fluid mixer (c43) is composed of a pressure-varying aeration balloon (431), a fixed guide rail (432), an aeration spray head (433), a rotating disk (434) and an aeration pipeline (435), the rotating disk (434) is nested on the upper surface of a centrifugal driving disk (c42), the fixed guide rail (432) is nested in the middle of the front surface of the rotating disk (434), the aeration pipelines (435) are uniformly distributed in the rotating disk (434), the pressure-varying aeration balloon (431) and the aeration pipeline (435) are communicated with each other, and the aeration spray head (433) is arranged at one end, far away from the pressure-varying aeration balloon (431), of the aeration pipeline (435).

5. The multi-dimensional dynamic orbital isolator of claim 3 wherein: the shearing driving structure (c44) comprises a driving gear disc (441), a connecting frame (442), a gear disc pushing block (443), a spiral spring (444), a fixed push rod (445), driving teeth (446) and a shearing driving disc (447), wherein the connecting frame (442) is tightly buckled with the inner wall of an evenly distributed structure shell (c3), the shearing driving disc (447) is positioned in the middle of the connecting frame (442), the driving teeth (446) are uniformly distributed on the surface of the shearing driving disc (447) in an annular array mode, the driving gear disc (441) and the shearing driving disc (447) are fixed through bolts, the fixed push rod (445) is connected to the bottom of the connecting frame (442) in a penetrating mode, the gear disc pushing block (443) is buckled with the top end of the fixed push rod (445), and the spiral spring (444) is nested inside the fixed push rod (445).

6. The multi-dimensional dynamic orbital isolator of claim 2, wherein: the shearing and mixing device (c5) is composed of a mixing block (c51), a shearing disc (c52) and an engaging block (c53), the shearing disc (c52) and the rotary fixing frame (c2) are in clearance fit, the mixing block (c51) is uniformly distributed on the surface of the shearing disc (c52), and the engaging block (c53) is located at the bottom of the shearing disc (c 52).

7. The multi-dimensional dynamic orbital isolator of claim 5 wherein: the fixed push rod (445) is of an upper and lower structure formed by combining a rectangular rod and an arc block, and cylindrical rollers are uniformly distributed on the edge of the arc block at the bottom.

8. The multi-dimensional dynamic orbital isolator of claim 3 wherein: the periphery of the linkage (c45) is of a gear structure with arc edges and is abutted against the fixed push rod (445).

Technical Field

The invention relates to the field of magnetic materials, in particular to a multidimensional dynamic rail vibration isolator.

Background

The development of rail transit has become the hot spot of a new round of city construction, and subway construction needs to consider different crowds needs such as school, hospital, market, residential area from the design angle, reduces noise and vibration influence that train operation produced to the surrounding environment, therefore the rail platform need install the isolator before laying, but the present technical consideration is not perfect enough, has following shortcoming: the magnetorheological fluid shock absorber has good damping adjustment capacity and is widely used, the magnetorheological fluid is formed by mixing ferromagnetic particles and a bearing liquid, and after the subway is stopped at night, the ferromagnetic particles in the magnetorheological fluid gradually settle to the bottom of the shock absorption telescopic cylinder under the action of gravity under the overnight standing condition of the shock absorber, so that the magnetorheological fluid is layered, namely the ferromagnetic particles are arranged at the bottom of the shock absorption telescopic cylinder, the upper layer of the ferromagnetic particles is the bearing liquid, and further after the electromagnetic coil generates a magnetic field, the ferromagnetic particles cannot form a damping effect, the damping force is reduced, the performance of the shock absorber is influenced, and even the shock absorber is damaged.

Disclosure of Invention

In order to solve the problems, the invention provides a multi-dimensional dynamic rail vibration isolator.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a track isolator of multidimension degree power, its structure includes concrete roadbed connecting block, isolator main part, isolator supporting baseplate, strengthening rib, concrete roadbed support column, isolator supporting baseplate is fillet rectangle structure and horizontal installation in track subaerial, isolator main part bottom and isolator supporting baseplate upper surface weld just with isolator supporting baseplate mutually perpendicular, the strengthening rib is right triangle structure and two right-angle sides respectively with isolator main part, isolator supporting baseplate welding together, concrete roadbed support column is located isolator main part top and adopts clearance fit with the isolator main part, concrete roadbed connecting block bottom and concrete roadbed support column top are closely leaned on together, the isolator main part is by controllable damping passageway, magnetorheological suspensions mounting groove, magnetorheological suspensions equipartition structure, shock attenuation jar, telescopic cylinder, Piston block, solenoid, actuating lever are constituteed, the shock attenuation telescoping cylinder is the cylinder structure and adopts clearance fit bottom the concrete road bed support column, the actuating lever is located in the middle of the shock attenuation telescoping cylinder and adopts through connection with the shock attenuation telescoping cylinder, the piston block be located inside the shock attenuation telescoping cylinder and with actuating lever mutually perpendicular, solenoid evenly distributed is inside the piston block, controllable damping passageway is nested both ends about the piston block, the magnetorheological suspensions mounting groove is located inside the shock attenuation telescoping cylinder, magnetorheological suspensions equipartition structure top adopts clearance fit bottom the actuating lever.

As a further improvement of the invention, the magnetorheological fluid uniform distribution structure comprises a driving screw, a rotary fixing frame, a uniform distribution structure shell, a centrifugal mixer and a shearing and mixing device, wherein the uniform distribution structure shell is of a non-top cylindrical structure and is nested at the bottom of the shock absorption telescopic cylinder, the centrifugal mixer is arranged at the top in the uniform distribution structure shell, the driving screw is vertical to the centrifugal mixer, the bottom of the shearing and mixing device is meshed with the centrifugal mixer, the rotary fixing frame is positioned between the centrifugal mixer and the shearing and mixing device, and the inner side and the outer side of the rotary fixing frame are in clearance fit with the centrifugal mixer and the shearing and mixing device respectively.

The centrifugal mixer is further improved by the invention and consists of a screw connecting shaft, a centrifugal driving disk, a magnetorheological fluid mixer, a shearing driving structure and a linkage device, wherein the centrifugal driving disk is of a cylindrical structure and is arranged in the middle of the inner part of the uniformly distributed structure shell, the screw connecting shaft is positioned in the middle of the upper surface of the centrifugal driving disk and is buckled with the bottom of the driving screw, the magnetorheological fluid mixers are uniformly distributed on the upper surface of the centrifugal driving disk in an annular array, the linkage device is positioned at the bottom of the centrifugal driving disk and is buckled with each other, and the shearing driving structure is buckled with the inner wall of the uniformly distributed structure shell and is jointed with.

As a further improvement of the invention, the magnetorheological fluid mixer is composed of a pressure swing aeration balloon, a fixed guide rail, an aeration nozzle, a rotating disk and an aeration pipeline, wherein the rotating disk is nested on the upper surface of a centrifugal driving disk and is vertical to the centrifugal driving disk, the fixed guide rail is nested in the middle of the front surface of the rotating disk and is buckled with the centrifugal driving disk, the aeration pipelines are uniformly distributed in the rotating disk in a staggered manner, the pressure swing aeration balloon is communicated with the aeration pipeline, and the aeration nozzle is arranged at one end, far away from the pressure swing aeration balloon, of the aeration pipeline.

The shearing driving structure is further improved by comprising a driving gear disc, a connecting frame, a gear disc pushing block, a spiral spring, a fixed push rod, driving teeth and a shearing driving disc, wherein the connecting frame is of a fan-shaped structure and is tightly buckled with the inner wall of a uniformly distributed structure shell, the shearing driving disc is positioned in the middle of the connecting frame, the driving teeth are uniformly distributed on the upper surface of the shearing driving disc in an annular array mode and are meshed with a shearing mixing device, the driving gear disc is positioned in the middle of the bottom surface of the shearing driving disc and is fixed with the shearing driving disc through bolts, the fixed push rod is connected to the bottom of the connecting frame in a penetrating mode, the gear disc pushing block is buckled with the top end of the fixed push rod, and the spiral.

As a further improvement of the invention, the shearing and mixing device comprises a mixing block, a shearing disc and an engaging block, wherein the shearing disc and the rotary fixing frame are in clearance fit and are in a concentric circle structure with the centrifugal driving disc, four mixing blocks are uniformly distributed on the surface of the shearing disc, and the engaging block is positioned at the bottom of the shearing disc and is engaged with the driving teeth.

As a further improvement of the invention, the fixed push rod is of an upper and lower structure formed by combining a rectangular rod and an arc-shaped block, and cylindrical rollers are uniformly distributed on the edge of the arc-shaped block at the bottom, so that when the linkage rotates, the linkage is attached to the rollers at the bottom of the fixed push rod, the rotation resistance is effectively reduced, and the mixing effect of the magnetorheological fluid is improved.

As a further improvement of the invention, the periphery of the linkage is of a gear structure with arc-shaped edges and is close to the fixed push rod, so that when the linkage rotates, the linkage pushes the fixed push rod to extrude the spiral spring to move inwards, the driving teeth drive the shearing disc and the centrifugal driving disc to rotate in the opposite direction, and the magnetorheological fluid is mixed more uniformly.

As a further improvement of the invention, the driving screw rod adopts a twist rod structure, and the top part of the driving screw rod is abutted against the inner wall of the driving rod.

As a further improvement of the invention, the joint of the gear plate push block and the fixed push rod is connected by a torsion spring.

The invention has the beneficial effects that: the track isolator is through installing magnetorheological suspensions equipartition structure, when the subway experiences when stopping for a long time and moves again, the isolator during operation mixes through shearing and combines together with centrifugal force, makes ferromagnetic particle in the isolator and bears the weight of liquid misce bene, and the damping force size when guaranteeing the isolator use promotes the performance of isolator, and avoids the isolator to cause the damage because of iron tooth particle and the mixed inequality of carrier liquid, extension isolator life.

When the magnetorheological fluid uniform distribution structure is used, as a train advances, a concrete road bed platform generates downward extrusion force on a concrete road bed support column, and the concrete road bed support column pushes a driving rod and a piston block to move downwards, so that a driving screw drives a centrifugal driving disc below to rotate clockwise, a linkage at the bottom of the centrifugal driving disc synchronously rotates, the linkage pushes a fixed push rod to extrude a spiral spring and move upwards, a gear disc push block at the top of the fixed push rod pushes a driving gear disc to rotate clockwise, the driving gear disc drives a shearing disc to rotate clockwise, at the moment, the top of the shearing disc rotates anticlockwise and forms shearing rotation with the centrifugal driving disc, ferromagnetic particles at the bottom of a damping telescopic cylinder rotate along with centrifugal force, the ferromagnetic particles are mixed with a bearing fluid more uniformly through the shearing rotation, and when the centrifugal driving disc rotates clockwise, the rotating disc and the bottom generate friction, so that the rotating disc rotates on the centrifugal driving disc, when the variable-pressure aeration ball rotates to the bottom, the variable-pressure aeration ball is extruded and exhausted through the aeration pipeline, and finally the variable-pressure aeration ball is ejected out through the aeration nozzle to enable ferromagnetic particles to flow upwards, so that the ferromagnetic particles and the bearing liquid are mixed more uniformly, corresponding damping force is generated on the vibration isolator when the ferromagnetic particles pass through the controllable damping channel, and the performance of the vibration absorber is improved.

Drawings

Fig. 1 is a schematic structural diagram of a multi-dimensional dynamic rail vibration isolator according to the present invention.

Fig. 2 is a structural schematic diagram of the vibration isolator main body in a front cross section.

Fig. 3 is a detailed structural schematic diagram of the uniform distribution structure of the magnetorheological fluid.

FIG. 4 is a schematic top view of FIG. 3 according to the present invention.

FIG. 5 is a schematic bottom view of FIG. 3 according to the present invention.

FIG. 6 is a schematic side view of a magnetorheological fluid mixer according to the present invention.

Fig. 7 is a detailed structural schematic diagram of the shear driving structure of the present invention.

In the figure: the device comprises a concrete track bed connecting block-1, a vibration isolator main body-2, a vibration isolator supporting base plate-3, reinforcing ribs-4, a concrete track bed supporting column-5, a controllable damping channel-2 a, a magnetorheological fluid mounting groove-2 b, a magnetorheological fluid uniform distribution structure-2 c, a damping telescopic cylinder-2 d, a piston block-2 e, an electromagnetic coil-2 f, a driving rod-2 g, a driving screw-c 1, a rotary fixing frame-c 2, a uniform distribution structure shell-c 3, a centrifugal mixer-c 4, a shearing mixing device-c 5, a screw connecting shaft-c 41, a centrifugal driving disk-c 42, a magnetorheological fluid mixer-c 43, a shearing driving structure-c 44, a linkage device-c 45, a pressure-changing aeration balloon-431, a fixed guide rail-432, an aeration nozzle-433, a piston block-2 e, a piston block, Rotating disc-434, aerating pipe-435, driving gear disc-441, connecting frame-442, gear disc pushing block-443, spiral spring-444, fixing push rod-445, driving tooth-446, shearing driving disc-447, mixing block-c 51, shearing disc-c 52 and meshing block-c 53.

Detailed Description

In order to make the technical means, the original characteristics, the achieved objects and the effects of the present invention easily understood, fig. 1 to 7 schematically show the structure of the rail vibration isolator according to the embodiment of the present invention, and the present invention will be further described with reference to the following detailed description.