CN117052007A - Linear damper and rectangular damper with same - Google Patents
Linear damper and rectangular damper with same Download PDFInfo
- Publication number
- CN117052007A CN117052007A CN202311172133.2A CN202311172133A CN117052007A CN 117052007 A CN117052007 A CN 117052007A CN 202311172133 A CN202311172133 A CN 202311172133A CN 117052007 A CN117052007 A CN 117052007A
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- linear
- connecting rod
- friction plate
- linear friction
- damper
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- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000005491 wire drawing Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 9
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 239000002783 friction material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
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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
Abstract
The application discloses a linear damper and a rectangular damper with the same, wherein the linear damper comprises two linear friction plates which form a friction surface through metal wire drawing, so that friction materials and friction plates are integrated, the assembly process is omitted, and the linear friction plates are low in cost and easy to replace; the rectangular damper with the linear damper is characterized in that the linear damper is arranged at a joint of a corner through the hinge four-bar mechanism, one of the two linear friction plates is hinged with one corner of the hinge four-bar mechanism, the other of the two linear friction plates is hinged with the other corner of the hinge four-bar mechanism, and an extension line of a central line of a long hole passes through the joint of the corner, so that the angular displacement of the joint of the corner of a building is converted into linear displacement of two ends of the linear damper through the hinge four-bar mechanism, and the technical problem that the conventional translational friction damper cannot be arranged at the joint of the corner and cannot provide energy consumption effect in case of small load is solved.
Description
Technical Field
The application relates to the field of dampers, in particular to a linear damper.
The application also relates to a rectangular damper with a linear damper.
Background
In the existing friction damper, friction plates with different friction coefficients are clamped between friction materials, or different roughness treatments are carried out on the surfaces of the materials, so that the friction coefficient of a friction surface is changed, and the energy consumption capacity of the damper is improved.
The defects are that:
the production and the assembly are difficult, the cost is high, the friction plate is not easy to replace, the friction plate is not easy to repair after being worn, and the friction plate can only be thrown away;
cannot be installed at the joints of the corners of a building, and cannot eliminate the angular displacement between the beams and columns of the building.
Disclosure of Invention
The application aims to provide a linear damper and a rectangular damper with the linear damper, which are used for solving the technical problems that the conventional linear damper is difficult to assemble, high in cost and difficult to replace due to the fact that friction plates with different friction coefficients are clamped between friction materials to form damping.
In order to solve the technical problems, the application specifically provides the following technical scheme:
a linear damper, comprising: at least two linear friction plates, wherein each linear friction plate forms a friction surface through metal wire drawing, at least 2 round holes are formed in one linear friction plate, long holes are formed in the other linear friction plate, the center line of each long hole is parallel to the long edge of the linear friction plate, and the center of each round hole is located at the center line of each long hole; the two linear friction plates are connected through a second screw rod, a second nut and a second disc spring, each second screw rod penetrates through 1 round hole in one linear friction plate and the long hole in the other linear friction plate, so that the two linear friction plates are connected in a sliding mode, and the second disc spring is sleeved at one end or two ends of the second screw rod and restrained through the second nut to generate elastic force for driving the two linear friction plates to be close to each other.
Further, the linear friction plate includes a first linear friction plate, a second linear friction plate, and a third linear friction plate, wherein the long hole is formed on the second linear friction plate, and the circular hole is formed on the first linear friction plate and the third linear friction plate; the second screw is also sleeved with a bearing, the bearing is arranged in the long hole, the outer ring of the bearing is in rolling contact with the long hole, and two ends of the bearing are not in contact with the first linear friction plate and the third linear friction plate.
Further, two ends of the inner ring of the bearing are limited between the first linear friction plate and the third linear friction plate through 2 shaft sleeves, and one ends of the 2 shaft sleeves, which are far away from the bearing, are respectively abutted against the first linear friction plate and the third linear friction plate.
Further, the second screw includes two opposite threads formed at two ends of the second screw, the shaft sleeve is an octagonal nut, the 2 octagonal nuts are respectively connected with two ends of the second screw in a spiral manner, and when the first linear friction plate and the third linear friction plate clamp the second linear friction plate, the 2 octagonal nuts are respectively embedded into the first linear friction plate and the third linear friction plate.
Further, grooves are milled on one surfaces of the first linear friction plate and the third linear friction plate, which are close to the second linear friction plate, the width of each groove is larger than the distance between two parallel edges of the octagonal nut, but smaller than the length of a diagonal line of the octagonal nut, and the octagonal nut is embedded in the grooves.
A rectangular damper with a linear damper comprises the linear damper and a hinge four-bar mechanism; the hinge four-bar mechanism is used for being installed at a node of a corner, and two adjacent bars of the hinge four-bar mechanism are used for connecting two mutually intersected surfaces or lines of the corner; one of the two linear friction plates is hinged with one corner of the hinge four-bar mechanism, the other of the two linear friction plates is hinged with the other corner of the hinge four-bar mechanism, and an extension line of the central line of the long hole passes through a node of the corner.
Further, the hinge four-bar mechanism includes a plurality of hinges that are sequentially hinged and form a parallelogram: the device comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first connecting rod and the second connecting rod are used for connecting two mutually intersected surfaces or lines of a corner, one end of a linear damper is hinged with the first connecting rod and the second connecting rod, and the other end of the linear damper is hinged with the third connecting rod and the fourth connecting rod.
Further, intermediate faces of the first link and the third link are coplanar, and intermediate faces of the second link and the fourth link are coplanar.
Further, the second connecting rod and the third connecting rod are connected through undamped hinges; the first connecting rod and the second connecting rod are connected through a damping hinge; or one of the first connecting rod and the second connecting rod is connected with the linear damper through a damping hinge.
Further, the first and second links have elasticity, and when the hinge joint of the first and second links is angularly displaced, the first and second links consume energy through elastic deformation.
Compared with the prior art, the application has the following beneficial effects:
the linear damper comprises two linear friction plates which form a friction surface through metal wire drawing, so that friction materials and the friction plates are integrated, an assembling process is omitted, and the linear friction plates are low in cost and easy to replace; the rectangular damper with the linear damper can convert the angular displacement of the corner joint of a building into linear movement of two ends of the linear damper, so that the technical problem that the conventional translational friction damper cannot be installed at the corner joint and cannot provide energy consumption in a small load is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a perspective view of a rectangular damper according to an embodiment of the present application;
FIG. 2 is a front view of a rectangular damper according to an embodiment of the present application;
FIG. 3 is a left side view of a rectangular damper according to an embodiment of the present application;
FIG. 4 is a top view of a rectangular damper according to an embodiment of the present application;
FIG. 5 is a perspective view of a linear damper according to an embodiment of the present application;
FIG. 6 is an assembly view of a linear damper according to an embodiment of the present application;
FIG. 7 is an assembly view of a second screw, bearing and octagonal nut of an embodiment of the application;
FIG. 8 is a top view of a linear damper according to an embodiment of the present application;
FIG. 9 is a cross-sectional view taken along the direction A-A of FIG. 8;
FIG. 10 is a cross-sectional view in the direction B-B of FIG. 8;
reference numerals in the drawings are respectively as follows:
1-a hinged four bar mechanism; 11-a first link; 12-a second link; 13-a third link; 14-fourth link; 15-a first ear panel; 16-a second ear panel; 2-linear damper; 21-a linear friction plate; 211-long holes; 212-a round hole; 213-first linear friction plate; 214-a second linear friction plate; 215-a third linear friction plate; 216-slotting; 22-a second screw; 23-a second nut; 24-a second disc spring; 25-bearings; 26-octagonal nuts; 3-undamped hinge; 31-a third screw; 32-a third nut; 4-damped hinge; 41-a first screw; 42-a first nut; 43-a first disc spring; 44-angle friction plate.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order to solve the technical problem that the conventional translational friction damper cannot be installed at a node of a corner and cannot provide energy consumption effect when the load is small, a friction energy consumption rectangular damper is provided hereinafter, and refer to fig. 1-5.
The rectangular damper includes: a hinge four-bar mechanism 1 and a linear damper 2;
the hinge four-bar mechanism 1 is for mounting at a node of a corner, and two adjacent bars of the hinge four-bar mechanism 1 are for connecting two mutually intersecting faces or lines of the corner;
the linear damper 2 includes: at least two linear friction plates 21, wherein at least 2 round holes 212 are arranged on one linear friction plate 21, long holes 211 are arranged on the other linear friction plate 21, and the extension line of the central line of the long holes 211 passes through a corner node;
one of the two linear friction plates 21 is hinged to one corner of the hinge four-bar mechanism 1, and the other of the two linear friction plates 21 is hinged to the other corner of the hinge four-bar mechanism 1;
the two linear friction plates 21 are connected by a second screw 22, a second nut 23 and a second disc spring 24, the two second screws 22 respectively pass through 2 circular holes 212 on one linear friction plate 21 and long holes 211 on the other linear friction plate 21, so that the two linear friction plates 21 are slidably connected to each other, and the second disc spring 24 is sleeved at one or both ends of the second screw 22 and restrained by the second nut 23 to generate elastic force for driving the two linear friction plates 21 to approach each other.
Two adjacent bars of the hinge four bar linkage 1 fixedly connect or fixedly connect beams and columns of a building perpendicular to each other, wherein:
the two mutually intersecting faces of the corner means that the cross sections of the upright and the cross beam are rectangular;
the two mutually intersecting lines of the corners means that the cross sections of the upright and the cross beam are circular.
When one angle of the hinge four-bar mechanism 1 generates angular displacement, the angle and the other angle on the diagonal line generate linear displacement, so that the angular displacement at the joint of the corner of the building is converted into linear displacement at two ends of the linear damper 2, and the longer the length of the bar of the hinge four-bar mechanism 1 is, the larger the linear displacement at two ends of the linear damper 2 is.
Therefore, only a small angular displacement is required to be generated at the node of the corner of the building, so that larger linear displacement can be generated at the two ends of the linear damper 2, and the technical problem that the conventional translational friction damper cannot be installed at the node of the corner and cannot provide energy consumption in case of small load is solved.
The linear friction plates 21 are also made of Q235 steel, the surfaces of which are subjected to wire drawing treatment to generate friction surfaces, and energy is consumed by friction when the two linear friction plates 21 slide relatively.
The number of the linear friction plates 21 may be more than 2, or may be 3, 4, or more, and as shown in fig. 5, the number of the linear friction plates 21 may be 3 in total.
Further, since the linear friction plate 21 and the linear friction plate 21 are slidably connected through the second screw 22 and the long hole 211, wherein the second screw 22 corresponds to a slider, and the long hole 211 corresponds to a chute, however, the second screw 22 is not as easy to slide as a slider, and the surface of the second screw is fully threaded, coarse and has large friction, so that when the two ends of the linear damper 2 are repeatedly stretched, the second screw 22 repeatedly rubs against the inner wall of the long hole 211, the threads are gradually worn away, the diameter of the second screw 22 is changed, the mechanical performance of the second screw 22 is degraded, and the damping of the linear damper 2 is difficult to adjust by increasing or decreasing the number of the second disc springs 24.
In order to solve the above-mentioned technical problems, please refer to fig. 6 and 7.
The linear friction plate 21 includes a first linear friction plate 213, a second linear friction plate 214, and a third linear friction plate 215, wherein long holes 211 are formed on the second linear friction plate 214, and round holes 212 are formed on the first linear friction plate 213 and the third linear friction plate 215;
the second screw 22 is further sleeved with a bearing 25, the bearing 25 is arranged in the long hole 211, the outer ring of the bearing 25 is in rolling contact with the long hole 211, and two ends of the bearing 25 are not in contact with the first linear friction plate 213 and the third linear friction plate 215.
Specifically, the width of the long hole 211 is larger than the diameter of the bearing 25, and the axial length of the bearing 25 is smaller than the thickness of the second linear friction plate 214.
Further, referring to fig. 8, 9 and 10, in order to avoid the outer ring of the bearing 25 from contacting the first linear friction plate 213 or the third linear friction plate 215, two ends of the inner ring of the bearing 25 are limited between the first linear friction plate 213 and the third linear friction plate 215 by 2 bushings, and one ends of the 2 bushings away from the bearing 25 are respectively abutted against the first linear friction plate 213 and the third linear friction plate 215.
Further, in the above embodiment, there is a possibility that the problem is: when the linear damper 2 operates at a high frequency, the second screw 22 rotates around its own axis, causing the second nut 23 to loosen, in order to solve this problem: the second screw 22 includes two threads formed at both ends thereof in opposite directions to each other, the sleeve is an octagonal nut 26, and the 2 sleeves are respectively screwed to both ends of the second screw 22, and when the first linear friction plate 213 and the third linear friction plate 215 sandwich the second linear friction plate 214, the 2 sleeves are respectively fitted inside the first linear friction plate 213 and the third linear friction plate 215.
Specific: grooves 216 are milled on one surface of the first linear friction plate 213 and one surface of the third linear friction plate 215, which are close to the second linear friction plate 214, and the width of each groove 216 is larger than the distance between two parallel edges of the octagonal nut 26, but smaller than the length of the diagonal line of the octagonal nut 26, and the octagonal nut 26 is embedded in the grooves 216.
Therefore, after the octagonal nuts 26 are embedded into the slots 216, the octagonal nuts 26 cannot be rotated, and since the two octagonal nuts 26 are opposite to each other in the direction of withdrawing the second screw 22 by rotation, when the octagonal nuts 26 cannot be rotated, the second screw 22 cannot be rotated, so that the problem of rotation of the second screw 22 is solved.
On the other hand:
the hinge four-bar linkage 1 comprises a sequential articulation and forms a parallelogram: the first link 11, the second link 12, the third link 13 and the fourth link 14, the first link 11 and the second link 12 are used for connecting two mutually intersected surfaces or lines of corners, one end of the linear damper 2 is hinged with the first link 11 and the second link 12, and the other end of the linear damper 2 is hinged with the third link 13 and the fourth link 14.
The first connecting rod 11 and the second connecting rod 12 are respectively connected with two mutually intersected surfaces or lines of the corner through a first lug plate 15 and a second lug plate 16, the first lug plate 15 is fixedly connected with the middle part of the first connecting rod 11, the second lug plate 16 is fixedly connected with the middle part of the second connecting rod 12, and the first lug plate 15 and the second lug plate 16 are perpendicular to the coplanar surfaces of the first connecting rod 11 and the second connecting rod 12.
The first and second ear plates 15 and 16 are identical in shape, and the first and second ear plates 15 and 16 are detachably connected to the first and second links 11 and 12, respectively, by bolts.
Further, in order to avoid a large out-of-plane displacement of the linear damper 2:
the intermediate surfaces of the first link 11 and the third link 13 are coplanar, and the intermediate surfaces of the second link 12 and the fourth link 14 are coplanar.
So that the displacement paths of the two ends of the linear damper 2 are always perpendicular to the axis of angular displacement of the node of the building corner.
Further:
the hinge four-bar mechanism 1 is made of Q235 steel, each bar of the hinge four-bar mechanism 1 has certain elasticity, when one angle of the hinge four-bar mechanism 1 generates angular displacement, two bars adjacent to the angle also generate elastic deformation, so that the hinge four-bar mechanism 1 consumes energy through the elastic deformation, and the technical problem of single energy consumption means of the existing damper is solved.
Further, in order to avoid the technical problem that the third link 13 or the fourth link 14 is asymmetrically bent, the two ends of the linear damper 2 are subjected to bending moment:
the second connecting rod 12 and the third connecting rod 13, the third connecting rod 13 and the fourth connecting rod 14, and the fourth connecting rod 14 and the first connecting rod 11 are all connected through the undamped hinge 3.
In this embodiment, the third screw 31 and the third nut 32 are used as the undamped hinge 3, but the screw does not apply a pre-tightening force between the rods so that the three angles can rotate freely, thereby avoiding that the third link 13 or the fourth link 14 bends asymmetrically when one of the three angles cannot rotate freely.
Further, in order to increase the damping performance of the hinge four-bar mechanism 1 itself:
the first connecting rod 11 and the second connecting rod 12 are connected through a damping hinge 4;
or,
one of the first link 11 and the second link 12 is connected with the linear damper 2 through the damper hinge 4.
The present embodiment includes three possible structures:
the first screw 41, the first nut 42, the first disc spring 43 and the angular friction plate 44 are adopted as the damping hinge 4, and the first screw 41 passes through the first through holes on the first connecting rod 11 and the second connecting rod 12;
the angular friction plate 44 is provided between the first link 11 and the second link 12;
alternatively, the angular friction plate 44 is provided outside the first link 11;
alternatively, the angular friction plate 44 is provided between the second link 12 and the linear damper 2;
the first disc spring 43 is sleeved on the outer side of the first screw 41 and is restrained by the first nut 42, and the first disc spring 43 is used for providing pretightening force to the first link 11, the second link 12, the angular friction plate 44 and the linear damper 2 so that friction energy consumption is caused by the angular friction plate 44 when the first link 11 and the second link 12 relatively rotate.
Taking the load of beams and columns at the mortise and tenon joints of the wood structure as an example, the rectangular damper works as follows:
when no external load or little external load acts on the second link 12 and the third link 13, the second link 12 and the third link 13 generate elastic deformation energy storage.
The pretightening force exists at the corner point between the second connecting rod 12 and the third connecting rod 13, the static friction force exists between the corner point angle friction plate 44 and the first connecting rod 11, the second connecting rod 12 or the linear damper 2, the corner point immediately generates friction bending moment resisting the rotation of the first connecting rod 11 and the second connecting rod 12, and the corner point does not immediately rotate at the moment.
The friction bending moment at the corner point increases with the increase of the load until the maximum friction bending moment which can be generated by the corner point is reached, and then the corner point slightly rotates.
At this time, the angular point has a degree of freedom of rotation, but because of the large pretightening force between the linear friction plates 21, the external load is still relatively small at this time, which is insufficient to enable the linear friction plates 21 to slide relatively, and the linear friction plates 21 still remain in a stationary state.
With further increase of the load, the tensile force of the damper acting on the linear friction plates 21 reaches the sliding friction force between the linear friction plates 21, the linear friction plates 21 slide relatively, and the damper enters a sliding energy consumption stage.
The damper at this stage stores energy not only through elastic deformation of the second link 12 and the third link 13, but also through frictional energy consumption of the corner points of the second link 12 and the third link 13 and frictional energy consumption of the linear friction plates 21 with each other.
When the rotation angle reaches the rotation range of the damper, the second screw 22 abuts against the end of the long hole 211, further increase of the rotation angle is prevented, rigidity is provided for the structure, and excessive displacement of the structure is avoided.
When unloading, the first connecting rod 11 and the second connecting rod 12 recover the self elastic deformation, then the damper overcomes the maximum friction bending moment of the corner under the action of external load, and the damper enters the reverse working stage and repeats the working process continuously.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and it is intended to be within the spirit and scope of the application as defined by the appended claims.
Claims (10)
1. A linear damper is characterized in that,
comprising the following steps: the friction device comprises at least two linear friction plates (21), wherein each linear friction plate (21) forms a friction surface through metal wire drawing, at least 2 round holes (212) are formed in one linear friction plate (21), long holes (211) are formed in the other linear friction plate (21), the center line of each long hole (211) is parallel to the long side of each linear friction plate (21), and the center of each round hole (212) is located at the center line of each long hole (211);
the two linear friction plates (21) are connected through a second screw rod (22), a second nut (23) and a second disc spring (24), each second screw rod (22) penetrates through 1 round hole (212) in one linear friction plate (21) and the long hole (211) in the other linear friction plate (21), so that the two linear friction plates (21) are connected with each other in a sliding mode, and the second disc spring (24) is sleeved at one end or two ends of the second screw rod (22) and restrained through the second nut (23) to generate elastic force for driving the two linear friction plates (21) to be close to each other.
2. A linear damper according to claim 1, wherein,
the linear friction plate (21) comprises a first linear friction plate (213), a second linear friction plate (214) and a third linear friction plate (215), wherein the long hole (211) is formed on the second linear friction plate (214), and the round hole (212) is formed on the first linear friction plate (213) and the third linear friction plate (215);
the second screw (22) is further sleeved with a bearing (25), the bearing (25) is arranged in the long hole (211), the outer ring of the bearing (25) is in rolling contact with the long hole (211), and two ends of the bearing (25) are not in contact with the first linear friction plate (213) and the third linear friction plate (215).
3. A linear damper according to claim 2, wherein,
two ends of an inner ring of the bearing (25) are limited between the first linear friction plate (213) and the third linear friction plate (215) through 2 shaft sleeves, and one ends of the 2 shaft sleeves, which are far away from the bearing (25), are respectively abutted against the first linear friction plate (213) and the third linear friction plate (215).
4. A linear damper according to claim 3, wherein,
the second screw (22) comprises two threads which are respectively formed at two ends of the second screw in opposite directions, the shaft sleeve is an octagonal nut (26), 2 octagonal nuts (26) are respectively in spiral connection with two ends of the second screw (22), and when the first linear friction plate (213) and the third linear friction plate (215) clamp the second linear friction plate (214), 2 octagonal nuts (26) are respectively embedded into the first linear friction plate (213) and the third linear friction plate (215).
5. A linear damper according to claim 4, wherein,
grooves (216) are milled on one surface of the first linear friction plate (213) and one surface of the third linear friction plate (215) close to the second linear friction plate (214), the width of each groove (216) is larger than the distance between two parallel edges of the octagonal nut (26), but smaller than the length of a diagonal line of the octagonal nut (26), and the octagonal nut (26) is embedded in the grooves (216).
6. A rectangular damper with a linear damper, characterized by comprising a linear damper according to any one of claims 1-5, and a hinge four-bar mechanism (1);
the hinge four-bar mechanism (1) is used for being installed at a node of a corner, and two adjacent bars of the hinge four-bar mechanism (1) are used for connecting two mutually intersected surfaces or lines of the corner;
one of the two linear friction plates (21) is hinged with one corner of the hinge four-bar mechanism (1), the other of the two linear friction plates (21) is hinged with the other corner of the hinge four-bar mechanism (1), and an extension line of the central line of the long hole (211) passes through a node of the corner.
7. A rectangular damper with a linear damper according to claim 6, wherein,
the hinge four-bar mechanism (1) comprises a plurality of hinge parts which are hinged in sequence and form a parallelogram: the linear damper comprises a first connecting rod (11), a second connecting rod (12), a third connecting rod (13) and a fourth connecting rod (14), wherein the first connecting rod (11) and the second connecting rod (12) are used for connecting two mutually intersected surfaces or lines of a corner, one end of the linear damper (2) is hinged with the first connecting rod (11) and the second connecting rod (12), and the other end of the linear damper (2) is hinged with the third connecting rod (13) and the fourth connecting rod (14).
8. A rectangular damper with a linear damper according to claim 7,
the intermediate surfaces of the first connecting rod (11) and the third connecting rod (13) are coplanar, and the intermediate surfaces of the second connecting rod (12) and the fourth connecting rod (14) are coplanar.
9. A rectangular damper with a linear damper according to claim 7,
the second connecting rod (12) and the third connecting rod (13), the third connecting rod (13) and the fourth connecting rod (14), the fourth connecting rod (14) and the first connecting rod (11) are all connected through a damping-free hinge (3);
and, in addition, the processing unit,
the first connecting rod (11) and the second connecting rod (12) are connected through a damping hinge (4);
or,
one of the first connecting rod (11) and the second connecting rod (12) is connected with the linear damper (2) through a damping hinge (4).
10. A rectangular damper with a linear damper according to claim 9,
the first connecting rod (11) and the second connecting rod (12) have elasticity, and when the hinge joint of the first connecting rod (11) and the second connecting rod (12) generates angular displacement, the first connecting rod (11) and the second connecting rod (12) consume energy through elastic deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311172133.2A CN117052007B (en) | 2023-09-12 | 2023-09-12 | Linear damper and rectangular damper with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311172133.2A CN117052007B (en) | 2023-09-12 | 2023-09-12 | Linear damper and rectangular damper with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117052007A true CN117052007A (en) | 2023-11-14 |
| CN117052007B CN117052007B (en) | 2024-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311172133.2A Active CN117052007B (en) | 2023-09-12 | 2023-09-12 | Linear damper and rectangular damper with same |
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| CN117052007B (en) | 2024-04-09 |
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