CN111895016A - Height-adjustable friction damper - Google Patents
Height-adjustable friction damper Download PDFInfo
- Publication number
- CN111895016A CN111895016A CN202010800027.4A CN202010800027A CN111895016A CN 111895016 A CN111895016 A CN 111895016A CN 202010800027 A CN202010800027 A CN 202010800027A CN 111895016 A CN111895016 A CN 111895016A
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- friction
- adjusting
- plate
- friction plate
- sliding plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
Abstract
The invention discloses a height-adjustable friction damper, which comprises a base, a friction part and a height adjusting part, wherein the friction part is arranged on the base; the base comprises a box body with a regulating cavity; the friction part comprises a friction assembly consisting of a first friction plate and a second friction plate, and through grooves for the second friction plate to extend out are formed in two sides of the box body in the width direction; a long hole is formed in the second friction plate, and the adjusting bolt penetrates through the first friction plate and the long hole and then is locked; the height adjusting part comprises a first adjusting piece, a second adjusting piece and a locking rod penetrating through the first adjusting piece and the second adjusting piece, and the first adjusting rod and the second adjusting rod are inserted between the friction part and the bottom surface of the adjusting cavity and used for adjusting the distance between the friction part and the bottom surface of the adjusting cavity. In this application, set up a box that has the regulation chamber, in the installation, can install the friction damper according to the installation space who has accomplished the construction, needn't set up the extension piece again and connect, height control portion can also increase the biography power of equipment.
Description
Technical Field
The invention relates to a friction damper with adjustable height.
Background
The friction damper is generally composed of two sets of friction plates which are overlapped with each other, locking is required to be completed in advance to achieve set output, and after the friction damper is transported to a construction area, installation parts connected with the two sets of friction plates are connected to corresponding building structures respectively, and installation of the friction damper is completed. Because the friction damper has accomplished locking in advance, its installation space has been confirmed, but because there is great error generally in the construction, in order to install the installation of friction damper smoothly, when carrying out the construction, generally can reserve great installation space, when the installation friction damper, often need weld extension piece temporarily to be connected to the friction damper installed part on the extension piece, make the installation of friction damper become comparatively complicated.
In order to cope with such a situation, an assembled friction damper has been developed, but in the installation process, since the construction conditions on the site are limited, a large-sized installation tool cannot be used, and an installer can adjust only with a simple tool and mainly install the friction damper manually, which not only deteriorates safety, but also affects the installation quality of the friction damper.
Disclosure of Invention
In order to solve the above problems, the present invention provides a height-adjustable friction damper, which includes a base, a friction portion and a height adjustment portion;
the base comprises a box body with an adjusting cavity and a first connecting part arranged on the box body, the box body is provided with an inlet and an outlet which are communicated with the adjusting cavity, and the inlet and the outlet face upwards;
the friction part comprises a friction assembly and a second connecting part, the friction assembly comprises two first friction plates which are arranged in parallel, a second friction plate is arranged between the two first friction plates, a friction material layer is arranged between the first friction plate and the second friction plate, and the second connecting part is arranged on the second friction plate; the lower part of the friction assembly is inserted into an adjusting cavity of the box body along the vertical direction, and a distance is reserved between the lower end surface of the friction assembly plate and the bottom surface of the adjusting cavity;
a first fastening bolt which can extend into the adjusting cavity and is pressed against the first friction plate is screwed on at least one side of the box body in the thickness direction;
through grooves communicated with the adjusting cavity are formed in the two sides of the box body in the width direction, the through grooves penetrate through the top of the box body upwards, and the through grooves only enable the second friction plates to extend out;
a long hole is formed in the second friction plate along the horizontal direction, and after the adjusting bolt penetrates through the first friction plate and the long hole, the first friction plate and the second friction plate are fastened together according to a set locking force;
under the action of external force, the first friction plate and the second friction plate can move relatively, and two ends of the second friction plate in the width direction can extend out of the adjusting cavity through the through groove;
the height adjusting part comprises a first adjusting piece, a second adjusting piece and a locking rod;
the first adjusting piece is provided with a first sliding plate, two opposite ends of the first sliding plate in the length direction are respectively called a first inserting end and a first adjusting end, a first adjusting block extending upwards is formed on the upper side of the first adjusting end, the first adjusting block is provided with a first inclined plane facing the first inserting end, a first through hole is formed in the first sliding plate, and the first through hole extends in the length direction of the first sliding plate;
the second adjusting piece is provided with a second sliding plate, two opposite ends of the second sliding plate in the length direction are respectively called a second inserting end and a second adjusting end, a second adjusting block extending upwards is formed on the upper side of the second adjusting end, the second adjusting block is provided with a second inclined plane facing the second inserting end, a second through hole is formed in the second sliding plate, and the second through hole extends in the length direction of the second sliding plate;
the first inserting end of the first sliding plate extends into the adjusting cavity through a through groove and is positioned between the second friction plate and the bottom surface of the adjusting cavity; the second inserting end of the second sliding plate extends into the adjusting cavity through another through groove and is positioned between the second friction plate and the bottom surface of the adjusting cavity;
the locking rod sequentially passes through the first through hole and the second through hole, and locking nuts are screwed at two ends of the locking rod; screwing the locking nut to enable the first inclined surface and the second inclined surface to be tightly pressed on two vertex angles at the bottom of the second friction plate and adjust the distance between the second friction plate and the bottom surface of the adjusting cavity; when the locking nut is tightened, a distance is reserved between the first adjusting piece and the second adjusting piece;
the height adjusting part is clamped and only clamped at the lower end of the second friction plate, the first sliding plate and the second sliding plate are both slidably pressed against the bottom surface of the adjusting cavity, and the height adjusting part can move along with the movement of the second friction plate. Specifically, the friction material layer is at least one of a copper plate, an aluminum plate, a stainless steel plate or a non-metal material plate.
In this application, set up a box that has the regulation chamber, because after installing this friction damper on building structure, because have the distance between the bottom surface in friction subassembly and regulation chamber, consequently in the installation, can install the friction damper according to the installation space who has accomplished the construction, to little construction error, can adjust through the distance between the bottom surface of adjusting friction portion and regulation chamber, and needn't set up the extension piece again and connect.
When the friction damper is installed, the first insertion end of the first sliding plate and the second insertion end of the second sliding plate are inserted into the adjusting cavity from the two through grooves respectively, the first inclined surface and the second inclined surface are abutted against the two ends of the bottom of the second friction plate respectively, the locking rod penetrates through the first through hole and the second through hole, the locking nut is screwed on the locking rod, the locking nut is screwed, the distance between the second friction plate and the bottom surface of the adjusting cavity is adjusted until the height of the friction damper is matched with the reserved installation space, and then the friction damper is installed on a building. Because the first adjusting part and the second adjusting part are abutted against the bottom surface of the adjusting cavity and can move along with the movement of the second friction plate, when the friction damper receives an external force, not only can the first friction plate and the second friction plate generate considerable friction and consume the external force, but also the first adjusting part and the second adjusting part can generate friction and consume the external force with the bottom surface of the adjusting cavity, so that the height adjusting part in the application not only plays a role in adjusting the height of the friction damper, but also can increase the output of the friction damper and improve the external force consumption capacity of the friction damper.
The fastening bolt can fix the friction assembly on the box body, so that the friction assembly is prevented from colliding with the box body in the transportation process, equipment is damaged, the fastening bolt is unscrewed during installation to adjust the height of the friction damper, and after the first connecting portion and the second connecting portion are connected to the corresponding connecting positions of the building, the fastening bolt is adjusted, and the distance between the fastening bolt and the first friction plate reaches the set distance.
When the fastening bolt is specifically adjusted, the fastening bolt can be in contact with the first friction plate and does not generate pressure on the first friction plate, or the distance between the fastening bolt and the first friction plate support is less than or equal to 1 mm.
Furthermore, in order to increase the contact area between the first sliding plate and the bottom surface of the adjusting cavity and the contact area between the second sliding plate and the bottom surface of the adjusting cavity and increase the output force of the friction damper, the lower end surfaces of the first sliding plate and the second sliding plate are parallel to the bottom surface of the adjusting cavity.
In order to further improve the output of the friction damper, a friction material layer is laid on the bottom surface of the adjusting cavity.
Specifically, the included angles between the first inclined surface and the second inclined surface and the horizontal plane are 10-35 degrees, and more preferably 15-25 degrees. Under the included angle of above-mentioned scope, can twist lock nut with less moment, be favorable to adopting the manual mode to twist lock nut, when avoiding installation space to be limited, can't use the drawback of mechanical operation.
Further, in order to prevent the first adjusting member and the second adjusting member from abutting against each other and affecting the height adjustment of the friction damper, the distance between the first adjusting member and the second adjusting member is 5-15mm when the lock nut is tightened. In the civil construction of the building, the distance in the range can reach the precision in the civil construction, and the friction damper can be ensured to be smoothly installed in the reserved installation space.
Further, in order to reduce the height of the friction damper during transportation, the height adjusting part is removed during transportation of the friction damper, the friction assembly abuts against the bottom surface of the adjusting cavity, and the first fastening bolt abuts against the first friction plate and fixes the friction assembly and the box body together.
Furthermore, in order to facilitate the friction assembly to be smoothly inserted into the adjusting cavity, the widths of the first friction plate and the second friction plate are both less than the width of the adjusting cavity by 2-8mm, and a second fastening bolt which can extend into the adjusting cavity and is pressed against the first friction plate is screwed on at least one side of the box body in the width direction.
Further, the adjusting bolt is located at a middle position in the length direction of the long hole when no external force acts. After the adjusting bolt is arranged at the middle position of the long hole, the first friction plate and the second friction plate can generate relative friction in two horizontal directions, so that the invention can consume external force input in two opposite horizontal directions.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a view along a-a in fig. 1.
Fig. 4 is an exploded view of fig. 1.
Detailed Description
Referring to fig. 1 to 4, an arrow X in fig. 1 indicates a width direction, and an arrow Y in fig. 2 indicates a thickness direction. In fig. 2, the height adjustment structure is removed for clarity of illustration.
A height adjustable friction damper includes a base 10, a friction part 20, and a height adjusting part 30.
The base 10 includes a box body, the cross section of which is rectangular, the box body includes a side wall extending along the vertical direction and a bottom plate 13 mounted at the lower end of the side wall, the side wall specifically includes two mutually parallel side plates 11 extending along the width direction of the box body and two mutually parallel end plates 12 extending along the thickness direction of the box body, a through groove 19 starts on each end plate 12, the through groove 19 upwards penetrates through the top of the box body, and the through groove 19 can only extend out a second friction plate described below. Namely, the two sides of the width direction of the box body are provided with through grooves communicated with the adjusting cavity.
The inner cavity of the box body is formed into a regulating cavity 15, the box body is not provided with a top cover, and the top opening of the regulating cavity 15 is formed into an inlet and an outlet communicated with the regulating cavity 15. I.e. the access opening is directed upwards.
The bottom portion 13 extends outward beyond the sidewall to form a first connecting portion 131, and a first mounting hole 132 is opened on the first connecting portion 131. Through which first connecting through-hole 132 can be mounted to a corresponding connecting member of the building structure.
Fastening threaded holes 16 are formed in both the side plates 11, and first fastening bolts 14 that can be inserted into the adjustment chambers and pressed against a first friction plate described below are screwed into the fastening threaded holes 16.
This friction portion 20 includes friction pack and second connecting portion, and this friction pack includes two parallel arrangement's first friction plate 21, is provided with a second friction plate 24 between two first friction plates 21, is provided with friction material layer 22 between first friction plate 21 and the second friction plate 24, and in this embodiment, friction material layer 22 adopts the stainless steel preparation. It is understood that in other embodiments, the friction material layer may be made of copper or aluminum.
The second connecting portion 25 is a plate extending horizontally, the second friction plate extends upward beyond the first friction plate, the first connecting portion 25 is disposed on the top of the second friction plate 24, and a second mounting hole 26 is formed in the first connecting portion. Through which second connecting through-hole 26 it can be mounted to a respective other connecting member of the building structure.
The lower part of the friction component is inserted into the adjusting cavity of the box body along the vertical direction, and a distance is reserved between the lower end face of the friction component and the bottom face of the adjusting cavity.
The second friction plate 24 is horizontally provided with a long hole 241, the first friction plate is provided with a fastening hole 211, and the first friction plate 21 and the second friction plate 24 are fastened together according to a set locking force after the adjusting bolt 23 passes through the fastening hole 211 and the long hole 241.
Under the action of external force, the first friction plate and the second friction plate can move relatively, and two ends of the second friction plate in the width direction can extend out of the adjusting cavity 15 through the through groove 19. When no external force acts, the adjusting bolt is located at the middle position of the long hole in the length direction.
The height adjusting part 30 includes a first adjusting member 31, a second adjusting member 36, and a locking lever 35. Referring to fig. 4, the first adjusting member 31 has a first sliding plate 32, two opposite ends of the first sliding plate 32 in the length direction are respectively referred to as a first insertion end 321 and a first adjusting end 322, a first adjusting block 33 extending upward is formed on the upper side of the first adjusting end 322, the first adjusting block 33 has a first inclined surface 331 facing the first insertion end 321, a first through hole 34 is formed in the first sliding plate 32, and the first through hole 34 extends in the length direction of the first sliding plate.
The second adjusting member 36 has a second sliding plate 37, opposite ends of the second sliding plate 37 in the longitudinal direction are respectively referred to as a second insertion end 371 and a second adjusting end 372, a second adjusting block 38 extending upward is formed above the second adjusting end 372, the second adjusting block 38 has a second inclined surface 381 facing the second insertion end 371, a second through hole 39 is formed in the second sliding plate 37, and the second through hole 39 extends in the longitudinal direction of the second sliding plate.
In this embodiment, the included angles between the first inclined surface 331 and the second inclined surface 381 and the horizontal plane are 18 °, and it is understood that in other embodiments, the included angles between the first inclined surface 331 and the second inclined surface 381 and the horizontal plane may also be 10 °, 15 °, 25 °, 30 °, or 35 °.
The first insertion end 321 of the first sliding plate 32 extends into the adjustment chamber 15 through a through slot and is located between the second friction plate and the bottom surface of the adjustment chamber. The second insertion end 371 of the second sliding plate 37 extends into the adjustment chamber 15 through another through slot and is located between the second friction plate and the bottom surface of the adjustment chamber.
The locking rod 35 passes through the first through hole 34 and the second through hole 39 in turn, and a locking nut 351 is screwed on both ends of the locking rod. Screwing the lock nut 351 enables both the first inclined surface 331 and the second inclined surface 381 to be tightly pressed against both the top corners 242 of the bottom of the second friction plate 24, and adjusts the distance between the second friction plate 24 and the bottom surface of the adjustment chamber, and thereby adjusts the distance between the entire friction portion and the bottom surface of the adjustment chamber. When the locking nut 351 is tightened, there is a distance between the first and second adjusting members 31 and 36. In the present embodiment, the distance between the first regulating member 31 and the second regulating member 36 is 10 mm. It is understood that in other embodiments, the distance between the first and second adjusters 31, 36 may also be 5mm, 8mm, 12mm, or 15 mm.
The height adjusting part is clamped and only clamped at the lower end of the second friction plate, the first sliding plate and the second sliding plate are both slidably pressed against the bottom surface of the adjusting cavity, and the height adjusting part can move along with the movement of the second friction plate.
In this embodiment, the lower end surfaces of the first slide plate 32 and the second slide plate 37 are parallel to the bottom surface of the adjustment chamber.
In order to increase the output of the friction damper, a friction material layer made of stainless steel plates is also laid on the bottom surface of the adjustment chamber, which is not shown in the drawing.
In order to facilitate the smooth insertion of the first friction plate 21 and the second friction plate 24 into the adjustment cavity 15, the widths of the first friction plate and the second friction plate are both less than the width of the adjustment cavity by 3mm, and the second fastening bolts 17 which can extend into the adjustment cavity and press against the first friction plate are screwed on both sides of the box body in the width direction.
When the friction damper in this embodiment is transported, the height adjusting portion 30 is removed, the friction member abuts against the bottom surface of the adjustment cavity, the first fastening bolt abuts against the first friction plate, and the friction member and the box body are fixed together, so that the height of the friction damper is reduced, and the transportation is facilitated. After being transported to the installation area, the height adjusting part 30 is installed.
Claims (9)
1. A friction damper with adjustable height is characterized by comprising a base, a friction part and a height adjusting part;
the base comprises a box body with an adjusting cavity and a first connecting part arranged on the box body, the box body is provided with an inlet and an outlet which are communicated with the adjusting cavity, and the inlet and the outlet face upwards;
the friction part comprises a friction assembly and a second connecting part, the friction assembly comprises two first friction plates which are arranged in parallel, a second friction plate is arranged between the two first friction plates, a friction material layer is arranged between the first friction plate and the second friction plate, and the second connecting part is arranged on the second friction plate; the lower part of the friction assembly is inserted into an adjusting cavity of the box body along the vertical direction, and a distance is reserved between the lower end surface of the friction assembly plate and the bottom surface of the adjusting cavity;
a first fastening bolt which can extend into the adjusting cavity and is pressed against the first friction plate is screwed on at least one side of the box body in the thickness direction;
through grooves communicated with the adjusting cavity are formed in the two sides of the box body in the width direction, the through grooves penetrate through the top of the box body upwards, and the through grooves only enable the second friction plates to extend out;
a long hole is formed in the second friction plate along the horizontal direction, and after the adjusting bolt penetrates through the first friction plate and the long hole, the first friction plate and the second friction plate are fastened together according to a set locking force;
under the action of external force, the first friction plate and the second friction plate can move relatively, and two ends of the second friction plate in the width direction can extend out of the adjusting cavity through the through groove;
the height adjusting part comprises a first adjusting piece, a second adjusting piece and a locking rod;
the first adjusting piece is provided with a first sliding plate, two opposite ends of the first sliding plate in the length direction are respectively called a first inserting end and a first adjusting end, a first adjusting block extending upwards is formed on the upper side of the first adjusting end, the first adjusting block is provided with a first inclined plane facing the first inserting end, a first through hole is formed in the first sliding plate, and the first through hole extends in the length direction of the first sliding plate;
the second adjusting piece is provided with a second sliding plate, two opposite ends of the second sliding plate in the length direction are respectively called a second inserting end and a second adjusting end, a second adjusting block extending upwards is formed on the upper side of the second adjusting end, the second adjusting block is provided with a second inclined plane facing the second inserting end, a second through hole is formed in the second sliding plate, and the second through hole extends in the length direction of the second sliding plate;
the first inserting end of the first sliding plate extends into the adjusting cavity through a through groove and is positioned between the second friction plate and the bottom surface of the adjusting cavity; the second inserting end of the second sliding plate extends into the adjusting cavity through another through groove and is positioned between the second friction plate and the bottom surface of the adjusting cavity;
the locking rod sequentially passes through the first through hole and the second through hole, and locking nuts are screwed at two ends of the locking rod; screwing the locking nut to enable the first inclined surface and the second inclined surface to be tightly pressed on two vertex angles at the bottom of the second friction plate and adjust the distance between the second friction plate and the bottom surface of the adjusting cavity; when the locking nut is tightened, a distance is reserved between the first adjusting piece and the second adjusting piece;
the height adjusting part is clamped and only clamped at the lower end of the second friction plate, the first sliding plate and the second sliding plate are both slidably pressed against the bottom surface of the adjusting cavity, and the height adjusting part can move along with the movement of the second friction plate.
2. The friction damper as recited in claim 1,
the lower end surfaces of the first sliding plate and the second sliding plate are parallel to the bottom surface of the adjusting cavity.
3. The friction damper as recited in claim 1,
and a friction material layer is laid on the bottom surface of the adjusting cavity.
4. The friction damper as recited in claim 1,
the included angles between the first inclined surface and the horizontal plane and the included angles between the second inclined surface and the horizontal plane are both 10-35 degrees.
5. The friction damper according to claim 1, characterized in that the distance between the first and second adjusting members is 5-15mm when the lock nut is tightened.
6. The friction damper as recited in claim 1,
when the friction damper is transported, the height adjusting part is detached, the friction assembly abuts against the bottom surface of the adjusting cavity, and the first fastening bolt abuts against the first friction plate and fixes the friction assembly and the box body together.
7. The friction damper according to claim 1, wherein the first friction plate and the second friction plate each have a width less than the width of the adjustment chamber by 2 to 8mm, and a second fastening bolt capable of extending into the adjustment chamber and abutting against the first friction plate is screwed on at least one side in the width direction of the case.
8. The friction damper as recited in claim 1,
when no external force acts, the adjusting bolt is located at the middle position of the long hole in the length direction.
9. The friction damper as recited in claim 1,
the friction material layer is at least one of a copper plate, an aluminum plate, a stainless steel plate or a non-metal material plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010800027.4A CN111895016B (en) | 2020-08-11 | 2020-08-11 | Height-adjustable friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010800027.4A CN111895016B (en) | 2020-08-11 | 2020-08-11 | Height-adjustable friction damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111895016A true CN111895016A (en) | 2020-11-06 |
| CN111895016B CN111895016B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010800027.4A Active CN111895016B (en) | 2020-08-11 | 2020-08-11 | Height-adjustable friction damper |
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| CN207988196U (en) * | 2018-02-02 | 2018-10-19 | 北京工业大学 | There is the frcition damper of complex damping feature based on shape-memory alloy wire |
| WO2019059576A1 (en) * | 2017-09-25 | 2019-03-28 | 이규열 | Steel multi-slit damper improved in earthquake-resistant and damping performances |
| CN209892675U (en) * | 2019-04-15 | 2020-01-03 | 山东百顿减震科技有限公司 | Novel friction damper |
| CN211176113U (en) * | 2019-10-21 | 2020-08-04 | 无锡能电动力科技有限公司 | Height-adjustable damping base for generator set |
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| US4715485A (en) * | 1984-03-17 | 1987-12-29 | Fichtel & Sachs Ag | Clutch disc for a motor vehicle friction clutch |
| US5651536A (en) * | 1994-04-13 | 1997-07-29 | Enidine Incorporated | Combined door closer/hinge with variable rotary friction damping performance |
| CN201952934U (en) * | 2010-12-20 | 2011-08-31 | 张蓬勃 | Friction damper filled with aluminum plate friction material |
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| WO2019059576A1 (en) * | 2017-09-25 | 2019-03-28 | 이규열 | Steel multi-slit damper improved in earthquake-resistant and damping performances |
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| CN207988196U (en) * | 2018-02-02 | 2018-10-19 | 北京工业大学 | There is the frcition damper of complex damping feature based on shape-memory alloy wire |
| CN209892675U (en) * | 2019-04-15 | 2020-01-03 | 山东百顿减震科技有限公司 | Novel friction damper |
| CN211176113U (en) * | 2019-10-21 | 2020-08-04 | 无锡能电动力科技有限公司 | Height-adjustable damping base for generator set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111895016B (en) | 2022-02-08 |
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