CN110886206A - Spherical support - Google Patents
Spherical support Download PDFInfo
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- CN110886206A CN110886206A CN201911296368.6A CN201911296368A CN110886206A CN 110886206 A CN110886206 A CN 110886206A CN 201911296368 A CN201911296368 A CN 201911296368A CN 110886206 A CN110886206 A CN 110886206A
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- sliding
- plate
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- impact
- connecting plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a spherical support which comprises a lower connecting plate, an upper connecting plate and a collision energy transfer device, wherein the lower connecting plate is fixedly connected with the upper connecting plate; the collision energy transfer device comprises a bottom sliding collision block, a top sliding collision block and a middle rotor, wherein a pair of bottom sliding friction pairs is connected between the bottom sliding collision block and the lower connecting plate, and a pair of top sliding friction pairs is connected between the top sliding collision block and the upper connecting plate; a ring of top impact plates extends downwardly from the bottom surface of the top sliding impact mass and a ring of bottom impact plates extends upwardly from the top surface of the bottom sliding impact mass. The spherical support disclosed by the invention can promote the top sliding friction pair and/or the bottom sliding friction pair to start to actuate by configuring the collision energy transfer device, and effectively realizes the shock absorption/isolation function.
Description
Technical Field
The invention relates to the technical field of building supports, in particular to a spherical support.
Background
Spherical bearings have been used for many years, and the application fields are bridges, house buildings and other structures. Friction pendulum supports or hyperboloid supports, classified in the support industry into spherical supports.
The spherical support principle is to utilize spherical surface swing to isolate vibration and dissipate energy. The vibration isolation and energy dissipation principle is that the vibration period of the structure is prolonged by using a sliding friction pair, so that the amplification effect of the structure caused by the earthquake action is greatly reduced, and the earthquake energy is consumed by the friction between parts of the sliding friction pair of the support.
As shown in fig. 1, the spherical bearing in the prior art includes a lower connecting plate 1 ', an upper connecting plate 2 ' and a sliding block 3 ', a pair of sliding friction pairs is connected between the top of the sliding block 3 ' and the upper connecting plate 2 ', and a pair of sliding friction pairs is connected between the bottom of the sliding block 3 ' and the lower connecting plate 1 '. The sliding friction pair comprises a fixed plate 4 'and a sliding plate 5'. The fixed plate 4 ' is fixedly installed on the upper and lower connection plates, and the sliding plate 5 ' is installed on the top and bottom surfaces of the sliding block 3 '.
When the bridge is installed, the lower connecting plate 1 'is connected with a pier or a building base, and the upper connecting plate 2' is connected with a bridge or an upper building.
In general, the initial static friction coefficient of the sliding friction pair is about 2 times of the dynamic friction coefficient, so that the initial force (yield force) of the sliding plate 5 'in the ball-type bearing just starting to slide (the bearing starts to operate) relative to the fixed plate 4' is 2 times of the force of the sliding plate 5 'after sliding relative to the fixed plate 4'.
When the building bears a small load, such as a horizontal load caused by sudden braking of a vehicle running on the bridge, the yield force of the sliding friction pair can be offset, the vibration of the bridge cannot be caused, and the small load also comprises wind load, the load of a small earthquake and the like. That is to say, the existence of the yield force, under the effect of less load, the sliding friction pair in the spherical bearing does not slide, and the shock insulation and energy dissipation are not started. When the horizontal force caused by the load is larger than the yield force (i.e. the friction force caused by the static friction coefficient) of the spherical bearing, the sliding plate 5 'starts to slide relative to the fixed plate 4', the consumption of the earthquake energy is achieved by the friction between the sliding plate 5 'and the fixed plate 4', and the spherical bearing enters the seismic isolation state.
However, the prior art ball bearings have the following disadvantages:
because the initial static friction coefficient of the sliding friction pair is larger than the dynamic friction coefficient, if the load generated by vibration cannot break through the initial static friction coefficient to cause initial yield force, the spherical support does not start the shock absorption/isolation function, thereby causing the damage of the building structure.
For example, assuming that a constructed bridge can resist an X-level earthquake, when the X-level earthquake occurs, the sliding friction pair in the spherical bearing may not be actuated due to the initial yield force, and when the earthquake level is greater than the X-level earthquake, the initial yield force of the sliding friction pair may be broken through. Therefore, when an X-level earthquake occurs, the bridge is damaged because the spherical support does not have the seismic isolation/reduction function.
In view of the above, it is necessary to provide a spherical bearing capable of quickly and effectively realizing seismic isolation.
Disclosure of Invention
The technical scheme of the invention provides a spherical support which comprises a lower connecting plate, an upper connecting plate and a collision energy transfer device arranged between the upper connecting plate and the lower connecting plate;
the collision energy transfer device comprises a bottom sliding collision block and a top sliding collision block, a pair of bottom sliding friction pairs is connected between the bottom sliding collision block and the lower connecting plate, and a pair of top sliding friction pairs is connected between the top sliding collision block and the upper connecting plate;
a circle of top collision plate extends downwards on the bottom surface of the top sliding collision block, and a circle of bottom collision plate extends upwards on the top surface of the bottom sliding collision block;
in the vertical direction, the lower end of the top impact plate is located between the upper end of the bottom impact plate and the top surface of the bottom sliding impact block;
a preset gap allowing the top sliding impact mass and the bottom sliding impact mass to move relatively is arranged between the top impact plate and the bottom impact plate in the horizontal direction;
wherein the collision energy transfer device further comprises an intermediate rotator capable of rotating between the top sliding collision block and the bottom sliding collision block and causing the top collision plate and the bottom collision plate to collide;
the middle rotor is arranged between the top sliding collision block and the bottom sliding collision block, the top of the middle rotor is in contact with the bottom of the top sliding collision block, and the bottom of the middle rotor is in contact with the top of the bottom sliding collision block.
Furthermore, the top collision plate and the bottom collision plate are respectively in a circular ring shape, and the radius of the circular ring-shaped bottom collision plate is larger than that of the circular ring-shaped top collision plate;
the top collision plate is positioned on the inner side of the bottom collision plate, and the middle rotor is positioned in the circular top collision plate.
Further, the top surface of the intermediate rotating body has a top curved surface protruding upward, and the bottom surface of the intermediate rotating body has a bottom curved surface protruding downward;
the top curved surface contacts the bottom surface of the top sliding collision mass, and the bottom curved surface contacts the top surface of the bottom sliding collision mass.
Further, the top curved surface and the bottom curved surface are spherical crown-shaped curved surfaces respectively.
Further, the bottom surface of the top sliding impact mass and the top surface of the bottom sliding impact mass are each planar.
Further, a circle of friction convex part extending towards the middle rotating body is arranged on the top collision plate;
the edge of the intermediate rotating body is in contact with the friction projection.
Further, the end of the friction bulge is a tip; the tip is in contact with the intermediate rotor.
Further, the upper sliding friction pair comprises an upper steel plate in a spherical crown shape and an upper sliding plate;
the upper steel plate is mounted on the bottom surface of the upper connecting plate, and the upper slide plate is mounted on the top surface of the top sliding impact block;
the upper steel plate presses on the upper sliding plate;
the lower sliding friction pair comprises a spherical crown-shaped lower steel plate and a lower sliding plate;
the lower steel plate is mounted on the top surface of the lower connecting plate, and the lower sliding plate is mounted on the bottom surface of the bottom sliding impact block;
the lower slide plate presses on the lower steel plate.
Furthermore, a spherical crown-shaped upper groove is formed in the bottom surface of the upper connecting plate, and the upper steel plate is fixedly installed in the upper groove;
the top surface of the lower connecting plate is provided with a spherical lower groove, and the lower steel plate is fixedly arranged in the lower groove.
Furthermore, a top groove is formed in the top surface of the top sliding block, the upper sliding plate is fixedly installed in the top groove, and the top surface of the upper sliding plate extends out of the top groove and is in contact with the upper steel plate;
the bottom surface of the bottom sliding block is provided with a bottom groove, the lower sliding plate is fixedly installed in the bottom groove, and the bottom surface of the lower sliding plate extends out of the lower portion of the bottom groove and is in contact with the lower steel plate.
By adopting the technical scheme, the method has the following beneficial effects:
according to the spherical support provided by the invention, the collision energy transfer device is configured to be composed of the bottom sliding collision block, the top sliding collision block and the middle rotor, when certain vibration occurs, the middle rotor can be caused to rotate, so that the bottom sliding collision block or the top sliding collision block slightly moves in the transverse direction, the top collision plate collides with the bottom collision plate, energy or collision load generated by collision is transferred to the top sliding friction pair through the top sliding collision block or transferred to the bottom sliding friction pair through the bottom sliding collision block, the collision load and the vibration load overcome the initial yield force of the sliding friction pair together, the top sliding friction pair and/or the bottom sliding friction pair are/is driven to start to actuate, and the vibration reduction/isolation function is realized.
Drawings
FIG. 1 is a schematic structural diagram of a ball-type pedestal in the prior art;
FIG. 2 is a schematic structural diagram of a ball-shaped socket according to an embodiment of the present invention;
FIG. 3 is an exploded view of the ball-type socket shown in FIG. 2;
FIG. 4 is a schematic structural view of a collision energy transfer device;
fig. 5 is an exploded view of the collision energy transfer device.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 2 to 5, the ball-type support provided by the embodiment of the present invention includes a lower connecting plate 1, an upper connecting plate 2, and a collision energy transfer device 3 disposed between the upper connecting plate 2 and the lower connecting plate 1.
The collision energy transfer device 3 includes a bottom sliding collision block 31 and a top sliding collision block 32, a pair of bottom sliding friction pairs 4 is connected between the bottom sliding collision block 31 and the lower link plate 1, and a pair of top sliding friction pairs 5 is connected between the top sliding collision block 32 and the upper link plate 2.
A ring of top impact plates 321 extends downward from the bottom surface 320 of the top sliding impact mass 32 and a ring of bottom impact plates 311 extends upward from the top surface 310 of the bottom sliding impact mass 31.
The lower end of the top impact plate 321 is located between the upper end of the bottom impact plate 311 and the top surface 310 of the bottom sliding impact block 31 in the vertical direction. Between the top impact plate 321 and the bottom impact plate 311 in the horizontal direction, there is a preset gap 30 that allows the top sliding impact mass 32 and the bottom sliding impact mass 31 to move relatively.
The collision energy transfer device 3 further includes an intermediate rotating body 33 that can rotate between the top sliding collision block 32 and the bottom sliding collision block 31 and causes the top collision plate 321 and the bottom collision plate 311 to collide.
The intermediate rolling member 33 is disposed between the top sliding collision mass 32 and the bottom sliding collision mass 31, the top of the intermediate rolling member 33 is in contact with the bottom surface 320 of the top sliding collision mass 32, and the bottom of the intermediate rolling member 33 is in contact with the top surface 310 of the bottom sliding collision mass 31.
The spherical support provided by the invention can be applied to buildings such as bridges and the like, and mainly comprises a lower connecting plate 1, an upper connecting plate 2, a collision energy transfer device 3, a bottom sliding friction pair 4 and a top sliding friction pair 5.
The lower connecting plate 1 is used for fixed installation on a building foundation, such as a pier. The upper connecting plate 2 is intended to be mounted on an upper part of a building, such as a bridge. The collision energy transfer device 3 is assembled between the lower connecting plate 1 and the upper connecting plate 2, the top of the collision energy transfer device is assembled with the upper connecting plate 2 through a top sliding friction pair 5, and the bottom of the collision energy transfer device is assembled with the lower connecting plate 1 through a bottom sliding friction pair 4.
The collision energy transfer device 3 is a device that can collide when a shock is generated, thereby transferring energy or load generated at the time of collision to the top sliding friction pair 5 and/or the bottom sliding friction pair 4.
The collision energy transfer device 3 includes a bottom sliding collision mass 31, a top sliding collision mass 32, and an intermediate rotor 33. The intermediate rotor 33 is preloaded between the bottom sliding collision mass 31 and the top sliding collision mass 32, and when the force from the peripheral vibration is greater than the preload, the intermediate rotor 33 can rotate between the bottom sliding collision mass 31 and the top sliding collision mass 32, and the rotation direction can be any direction as long as the corresponding rotation can be generated.
The intermediate rotating body 33 may be a sphere, a cylinder, an ellipsoid, a spherical cap, or the like.
The top sliding impact mass 32 is assembled with the upper connecting plate 2 by the top sliding friction pair 5, and the bottom sliding impact mass 31 is assembled with the lower connecting plate 1 by the bottom sliding friction pair 4.
The bottom sliding collision mass 31, the top sliding collision mass 32 and the intermediate rotator 33 are specifically assembled as follows:
the top sliding collision block 32 is provided at the bottom surface 320 thereof with a ring of top collision plates 321, the top collision plates 321 being integrally formed with the top sliding collision block 32, the top collision plates 321 extending downward such that top receiving grooves are formed between the ring of top collision plates 321 for fitting the intermediate rotating body 33.
The bottom sliding collision block 31 is provided at the top surface 310 thereof with a ring of bottom collision plates 311, the bottom collision plates 311 being integrally formed with the bottom sliding collision block 31, the bottom collision plates 311 extending upward so that a bottom receiving groove is formed between the ring of bottom collision plates 311 for receiving a portion of the top collision plates 321 and the intermediate rotator 33.
The lower end of the top impact plate 321 is interposed between the top end of the bottom impact plate 311 and the top surface 310 of the bottom sliding impact mass 31 (the bottom of the bottom receiving groove) in the vertical direction or the direction perpendicular to the ground. In the horizontal direction, there is a preset gap 30 between the top and bottom impact plates 321 and 311 to allow the top and bottom sliding impact blocks 32 and 31 to move relatively. When the top sliding collision mass 32 and the bottom sliding collision mass 31 move a certain distance in the horizontal direction, the top collision plate 321 collides with the bottom collision plate 311, thereby generating collision energy or collision load, which can be transmitted to the top sliding friction pair 5 and/or the bottom sliding friction pair 4 through the top sliding collision mass 32 and/or the bottom sliding collision mass 31 to help the top sliding friction pair 5 and/or the bottom sliding friction pair 4 start to operate.
The intermediate rolling body 33 is disposed between the top sliding collision mass 32 and the bottom sliding collision mass 31, and the bottom surface 320 of the top sliding collision mass 32 is in contact with the top surface 310 of the bottom sliding collision mass 31.
When the force generated by the peripheral vibration is larger than the preload of the intermediate rotating body 33, the intermediate rotating body 33 can rotate between the top sliding collision mass 32 and the bottom sliding collision mass 31. While the intermediate rotor 33 has a certain friction force with the bottom surface 320 and the top surface 310, when the intermediate rotor 33 rotates, it generates a reaction force against the top sliding collision mass 32 and/or the bottom sliding collision mass 31, so that the top sliding collision mass 32 and/or the bottom sliding collision mass 31 move in the horizontal direction.
The operation of the spherical bearing provided by the present invention will be described in detail below:
when earthquake happens to the ground or vibration is generated, the energy generated by the vibration is transferred to the lower connecting plate 1. In the horizontal direction, the lower link plate 1 will be subjected to a horizontal force F1 in the first direction. The bottom sliding friction pair 4 is subjected to a horizontal force F1 in a second direction, the first direction being opposite to the second direction. The bottom sliding impact mass 31 is subjected to a horizontal force F1 in the first direction. The intermediate rotating body 33 is subjected to a horizontal force F1 in the second direction. The top sliding friction pair 5 is subjected to a horizontal force F1 in a first direction. The top sliding impact mass 32 is subjected to a horizontal force F1 in a second direction. The upper web 2 is subjected to a horizontal force F1 in a first direction.
The loss in the force transmission process is ignored in the actuating process, and the influence of other factors can be ignored because the vibration is generally large.
Typically, the initial yield force of the bottom sliding friction pair 4 is the same as the initial yield force of the top sliding friction pair 5.
If the horizontal acting force F1 is smaller than the initial yield force of the bottom sliding friction pair 4 and the initial yield force of the top sliding friction pair 5, neither the bottom sliding friction pair 4 nor the top sliding friction pair 5 is actuated, and the shock absorption/isolation function cannot be generated.
Since the bottom sliding impact mass 31 receives the horizontal force F1 in the first direction, the intermediate rotating body 33 receives the horizontal force F1 in the second direction in reaction thereto. If the horizontal force is greater than the biasing force of the intermediate rotor 33, the intermediate rotor 33 rotates or rolls in the second direction, and the balance among the bottom sliding collision mass 31, the top sliding collision mass 32, and the intermediate rotor 33 is broken, so that the top sliding collision mass 32 and the top sliding friction pair 5 move in the first direction in the horizontal direction, and when the movement amount is the predetermined gap 30, the top collision plate 321 collides with the bottom collision plate 311, thereby generating collision energy or collision load, generating a horizontal force F2 in the first direction on the bottom collision plate 311, generating a horizontal force F2 in the second direction on the bottom sliding friction pair 4, generating a horizontal force F2 in the second direction on the top sliding friction pair 5.
At this time, the horizontal force on the bottom sliding friction pair 4 is F1+ F2 toward the second direction, and breaks through the initial yield force of the bottom sliding friction pair 4, so that the bottom sliding impact mass 31 slightly slides toward the second direction. The horizontal force on the top sliding friction pair 5, F1+ F2, in the first direction, breaks through the initial yield force of the top sliding friction pair 5, causing the top sliding impact mass 32 to slide slightly in the first direction.
From the physical structure, the amount of rotation or angular movement of the intermediate rotor 33 is small, and the amount of movement of the bottom sliding collision mass 31 and the top sliding collision mass 32 is also small, and the structural support performance is not affected.
The frictional force may dissipate shock energy as the bottom sliding impact mass 31 slides with the top sliding impact mass 32.
The bottom sliding impact mass 31 slides in the opposite direction to the top sliding impact mass 32, increasing the distance of the structure in the horizontal direction and also having the effect of extending the period of vibration of the structure.
When the earthquake occurs on the ground or the force for generating the vibration is small, the rigid structure of the building or the rigid structure of the spherical support can resist, the middle rotating body 33 does not act, and the pretension is kept between the bottom sliding impact block 31 and the top sliding impact block 32.
The principle when the force of the vibrations is transmitted from the upper connection plate 2 is the same as when the force is transmitted from the lower connection plate 1.
Therefore, the spherical support provided by the invention can transmit the collision energy of the bottom sliding collision block and the top sliding collision block to the top sliding friction pair and/or the bottom sliding friction pair by configuring the collision energy transmission device, and the collision load and the vibration load overcome the initial yield force of the sliding friction pair together to drive the top sliding friction pair and/or the bottom sliding friction pair to start to actuate, thereby effectively realizing the shock absorption/isolation function.
Preferably, as shown in fig. 2-5, the top collision plate 321 and the bottom collision plate 311 are each circular in shape, and the radius of the circular bottom collision plate 311 is greater than the radius of the circular top collision plate 321. The top collision plate 321 is located inside the bottom collision plate 311, and the intermediate rotating body 33 is located inside the circular top collision plate 321.
The bottom impact plate 311 can limit the movement of the top sliding impact block 32, the top impact plate 321 is arranged in the bottom impact plate 311, the middle rotor 33 is arranged in the circular top impact plate 321, the assembly is convenient, and the structural stability can be improved.
Preferably, as shown in fig. 4 to 5, the top surface of the intermediate rotating body 33 has a top curved surface 331 which is upwardly convex, and the bottom surface of the intermediate rotating body 33 has a bottom curved surface 332 which is downwardly convex.
The top curved surface 331 contacts the bottom surface 320 of the top sliding impact mass 32, and the bottom curved surface 332 contacts the top surface 310 of the bottom sliding impact mass 31.
The contact area between the top curved surface 331 and the bottom surface 320 is small, the friction force between the top curved surface 331 and the bottom surface 320 is small, the contact area between the bottom curved surface 332 and the top surface 310 is small, the friction force between the bottom curved surface and the top curved surface is small, the middle rotating body 33 can smoothly rotate or roll when being subjected to an external force, and the collision energy transfer between the bottom sliding impact block and the top sliding impact block is facilitated.
Preferably, the top curved surface 331 and the bottom curved surface 332 are each a spherical crown shaped curved surface. That is, the top curved surface 331 and the bottom curved surface 332 are spherical cap curved surfaces, respectively, so that the intermediate rotating body 33 can rotate or roll in any direction, and the collision energy transfer effect of the collision energy transfer device is improved.
The intermediate rotating body 33 may be composed of two upper and lower spherical crown bodies.
Preferably, the side surface 334 of the intermediate rotating body 33 between the top curved surface 331 and the bottom curved surface 332 is curved to reduce friction with the inner surface of the top collision plate 321, thereby facilitating the rotation or rolling of the intermediate rotating body 33.
Preferably, as shown in FIG. 5, the bottom surface 320 of the top sliding impact mass 32 and the top surface 310 of the bottom sliding impact mass 31 are flat, such that the top curved surface 331 makes point contact with the bottom surface 320 and the bottom curved surface 332 makes point contact with the top surface 310, reducing friction and facilitating rotation or rolling of the mid-rotor 33.
The intermediate rotating body 33 can rotate or roll about a line connecting an upper contact point of the top curved surface 331 with the bottom surface 320 and a lower contact point of the bottom curved surface 332 with the top surface 310 during the rotation or rolling.
Preferably, as shown in fig. 4 to 5, a rotation of the friction protrusion 323 extending toward the intermediate rotator 33 is provided on the top collision plate 321, and the edge of the intermediate rotator 33 is in contact with the friction protrusion 323. The friction protrusion 323 is integrally formed with the top collision plate 321, is located inside the top collision plate 321, and extends toward the intermediate rotator 33. The end of the top collision plate 321 contacts the side surface 334 of the intermediate rolling body 33, and restricts the rotation or rolling center of the intermediate rolling body 33 at the time of restricting the mounting position of the intermediate rolling body 33, and the rotation of the intermediate rolling body 33 has a certain moment by the friction between the friction convex portion 323 and the side surface 334, and the minute vibration does not cause the collision of the vertical rocking plates.
Preferably, as shown in fig. 4-5, the ends of the friction protrusions 323 are pointed. The tip end contacts the intermediate rotating body 33, and the contact area with the intermediate rotating body 33 can be reduced to reduce the frictional force while restricting the mounting position of the intermediate rotating body 33.
Preferably, as shown in fig. 2-3, the upper sliding friction pair 5 includes an upper steel plate 51 and an upper sliding plate 52 in a spherical cap shape. An upper steel plate 51 is mounted on the bottom surface of the upper connecting plate 2 and an upper slide plate 52 is mounted on the top surface of the top sliding impact block 32. The upper steel plate 51 presses on the upper slide plate 52.
The lower sliding friction pair 4 includes a spherical crown-shaped lower steel plate 41 and a lower sliding plate 42. A lower steel plate 41 is installed on the top surface of the lower connecting plate 1, and a lower slide plate 42 is installed on the bottom surface of the bottom sliding impact mass 31. The lower slide plate 42 presses against the lower steel plate 41.
The lower sliding friction pair 4 and the upper sliding friction pair 5 have the same structure, one is arranged above and the other is arranged below.
The upper steel plate 51, the upper slide plate 52, the lower steel plate 41, and the lower slide plate 42 are all formed in a spherical crown shape, and the upper slide plate 52 is slidable in any direction with respect to the upper steel plate 51, and the lower slide plate 42 is slidable in any direction with respect to the lower steel plate 41.
The radius of the upper steel plate 51 is larger than that of the upper slide plate 52, and the radius of the lower steel plate 41 is larger than that of the lower slide plate 42, so that the upper slide plate 52 is within the range of the upper steel plate 51, and the lower slide plate 42 is within the range of the lower steel plate 41, and the slide plates do not separate from the steel plates during relative sliding.
The lower steel plate 41 and the upper steel plate 51 may be stainless steel plates, and the lower slide plate 42 and the upper slide plate 52 may be metal plates having hardness lower than that of the steel plates. The lower steel plate 41 and the upper steel plate 51 are hard surfaces, and the lower sliding plate 42 and the upper sliding plate 52 are correspondingly soft surfaces. When the lower slide plate 42 slides relative to the lower steel plate 41 and the upper slide plate 52 slides relative to the upper steel plate 51, a frictional force is generated to absorb shock energy.
The lower and upper steel plates 41 and 51 are coated with a corrosion prevention layer (e.g., hard chrome plating layer) to improve corrosion prevention.
Preferably, as shown in fig. 2 to 5, the upper connecting plate 2 is provided at a bottom surface thereof with a spherical-crown-shaped upper groove 21, and the upper steel plate 51 is fixedly installed in the upper groove 21. The top surface of the lower connecting plate 1 is provided with a spherical lower groove 11, and the lower steel plate 41 is fixedly arranged in the lower groove 11.
Preferably, as shown in fig. 2-5, a top recess 322 is provided in the top surface of the top slide 32, and the upper slide 52 is fixedly mounted within the top recess 322. The top surface of the upper slide plate 52 protrudes above the top groove 322 and contacts the upper steel plate 51.
A bottom groove 312 is formed on the bottom surface of the bottom slider 31, the lower slider 42 is fixedly installed in the bottom groove 312, and the bottom surface of the lower slider 42 extends below the bottom groove 312 and contacts the lower steel plate 41.
The top groove 322 and the bottom groove 312 are also respectively in a spherical cap shape, and are used for fixedly mounting the upper sliding plate 52 and the lower sliding plate 42, so that the manufacturing is convenient, and the structure is stable.
In summary, according to the ball-type support provided by the invention, the collision energy transfer device is configured to be composed of the bottom sliding collision block, the top sliding collision block and the middle rotor, when a certain vibration occurs, the middle rotor can be caused to rotate, so that the bottom sliding collision block or the top sliding collision block slightly moves in the transverse direction, the top collision plate collides with the bottom collision plate, energy or collision load generated by collision is transmitted to the top sliding friction pair through the top sliding collision block or transmitted to the bottom sliding friction pair through the bottom sliding collision block, the collision load and the vibration load together overcome the initial yield force of the sliding friction pair, so that the top sliding friction pair and/or the bottom sliding friction pair start to operate, and the vibration reduction/isolation function is realized.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.
Claims (10)
1. A spherical support is characterized by comprising a lower connecting plate, an upper connecting plate and a collision energy transfer device arranged between the upper connecting plate and the lower connecting plate;
the collision energy transfer device comprises a bottom sliding collision block and a top sliding collision block, a pair of bottom sliding friction pairs is connected between the bottom sliding collision block and the lower connecting plate, and a pair of top sliding friction pairs is connected between the top sliding collision block and the upper connecting plate;
a circle of top collision plate extends downwards on the bottom surface of the top sliding collision block, and a circle of bottom collision plate extends upwards on the top surface of the bottom sliding collision block;
in the vertical direction, the lower end of the top impact plate is located between the upper end of the bottom impact plate and the top surface of the bottom sliding impact block;
a preset gap allowing the top sliding impact mass and the bottom sliding impact mass to move relatively is arranged between the top impact plate and the bottom impact plate in the horizontal direction;
wherein the collision energy transfer device further comprises an intermediate rotator capable of rotating between the top sliding collision block and the bottom sliding collision block and causing the top collision plate and the bottom collision plate to collide;
the middle rotor is arranged between the top sliding collision block and the bottom sliding collision block, the top of the middle rotor is in contact with the bottom surface of the top sliding collision block, and the bottom of the middle rotor is in contact with the top surface of the bottom sliding collision block.
2. The ball-type pedestal of claim 1, wherein the top impact plate and the bottom impact plate are each circular and the radius of the circular bottom impact plate is greater than the radius of the circular top impact plate;
the top collision plate is positioned on the inner side of the bottom collision plate, and the middle rotor is positioned in the circular top collision plate.
3. The ball-type socket according to claim 1 or 2,
the top surface of the middle rotating body is provided with a top curved surface protruding upwards, and the bottom surface of the middle rotating body is provided with a bottom curved surface protruding downwards;
the top curved surface contacts the bottom surface of the top sliding collision mass, and the bottom curved surface contacts the top surface of the bottom sliding collision mass.
4. The ball-type socket of claim 3, wherein said top curved surface and said bottom curved surface are each a spherical crown shaped curved surface.
5. A ball-type mount according to claim 3, wherein the bottom surface of the top sliding impact mass and the top surface of the bottom sliding impact mass are each planar.
6. A ball-type socket according to claim 1, wherein a ring of friction protrusions extending toward the intermediate rotator are provided on the top impact plate;
the edge of the intermediate rotating body is in contact with the friction projection.
7. The ball-type socket of claim 6, wherein the friction protrusions end in a pointed end; the tip is in contact with the intermediate rotor.
8. The ball-type socket of claim 1, wherein said upper sliding friction pair comprises an upper steel plate and an upper sliding plate in a spherical shape;
the upper steel plate is mounted on the bottom surface of the upper connecting plate, and the upper slide plate is mounted on the top surface of the top sliding impact block;
the upper steel plate presses on the upper sliding plate;
the lower sliding friction pair comprises a spherical crown-shaped lower steel plate and a lower sliding plate;
the lower steel plate is mounted on the top surface of the lower connecting plate, and the lower sliding plate is mounted on the bottom surface of the bottom sliding impact block;
the lower slide plate presses on the lower steel plate.
9. The ball-type support according to claim 8, wherein a spherical crown-shaped upper groove is provided on a bottom surface of the upper connecting plate, and the upper steel plate is fixedly installed in the upper groove;
the top surface of the lower connecting plate is provided with a spherical lower groove, and the lower steel plate is fixedly arranged in the lower groove.
10. The ball-type socket according to claim 8, wherein a top groove is formed on a top surface of the top slider, the upper slide plate is fixedly installed in the top groove, and a top surface of the upper slide plate extends above the top groove and contacts the upper steel plate;
the bottom surface of the bottom sliding block is provided with a bottom groove, the lower sliding plate is fixedly installed in the bottom groove, and the bottom surface of the lower sliding plate extends out of the lower portion of the bottom groove and is in contact with the lower steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296368.6A CN110886206A (en) | 2019-12-16 | 2019-12-16 | Spherical support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296368.6A CN110886206A (en) | 2019-12-16 | 2019-12-16 | Spherical support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110886206A true CN110886206A (en) | 2020-03-17 |
Family
ID=69752143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911296368.6A Pending CN110886206A (en) | 2019-12-16 | 2019-12-16 | Spherical support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576657A (en) * | 2020-06-16 | 2020-08-25 | 苏州高精特专信息科技有限公司 | Earthquake energy absorption device for house construction project |
-
2019
- 2019-12-16 CN CN201911296368.6A patent/CN110886206A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576657A (en) * | 2020-06-16 | 2020-08-25 | 苏州高精特专信息科技有限公司 | Earthquake energy absorption device for house construction project |
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