CN213981844U - Rotational speed type damper - Google Patents
Rotational speed type damper Download PDFInfo
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- CN213981844U CN213981844U CN202022634974.9U CN202022634974U CN213981844U CN 213981844 U CN213981844 U CN 213981844U CN 202022634974 U CN202022634974 U CN 202022634974U CN 213981844 U CN213981844 U CN 213981844U
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Abstract
The utility model discloses a rotary speed damper, which comprises a sleeve component, a screw rod component, a rotary disk component and a friction damping component; the screw rod part is arranged in the sleeve part in a relatively movable way; the rotating disc part is arranged in the sleeve part and comprises an inner stiffening plate, an elastic body and an outer extending plate which are sequentially connected, and the inner stiffening plate is connected with the screw rod part; the friction damping part comprises a friction layer and a mass block, the friction layer is arranged in the sleeve part, one end of the mass block is connected with the outward extending plate, and the other end of the mass block is provided with a friction plate which forms a friction pair with the friction layer; the rotating disc part drives the mass blocks to synchronously rotate by inducing the action of vibration force and making the relative motion with the sleeve part through the screw rod part, and the change of the rotating speed makes the mass blocks generate different centrifugal forces to cause the pressure between the friction plate and the friction layer to change, so that the damper realizes the variable output of the damping force when the external load changes the speed; the invention has simple structure and high damping efficiency, and can effectively reduce the cost and prolong the service life.
Description
Technical Field
The utility model relates to a structure shock attenuation technical field, in particular to rotation rate type attenuator.
Background
The damper can effectively reduce the vibration reaction of the structure and greatly improve the anti-seismic performance of the structure. However, the traditional damper is not efficient in energy consumption and low in energy conversion rate, cannot cope with the condition of large-earthquake input, and can possibly cause the damper to fail in serious cases, and the traditional damper cannot meet the performance requirements of modern structural vibration control.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a rotation rate type attenuator, can exert better anti-seismic performance.
According to an embodiment of the first aspect of the present invention, there is provided a rotational velocity type damper, including: a sleeve member, a screw member, a rotating disc member and a frictional damping member; wherein the screw member is arranged in the sleeve member, and the screw member and the sleeve member can move relatively; the rotary disc component is arranged in the sleeve component and comprises an elastic body, an inner stiffening plate and an outer extending plate, the inner stiffening plate is fixedly connected with the screw rod component, the elastic body is arranged on the inner stiffening plate, the outer extending plate is arranged on the elastic body, and the screw rod component is used for driving the rotary disc component to rotate; the friction damping part comprises a friction layer and a mass block, the friction layer is arranged on the inner side wall of the sleeve part, one end of the mass block is connected with the outward extending plate, the other end of the mass block is provided with a friction plate, the friction layer and the friction plate form a friction pair, and the outward extending plate has a tendency of being far away from the screw rod part under the action of centrifugal force of the elastic body and is used for increasing pressure between the friction layer and the friction plate.
Has the advantages that: the rotary speed type damper is characterized in that the rotary disc part rotates and drives the mass block to rotate under the action of the vibration force induced by the screw rod part, when the sleeve part and the screw rod part move relatively, the mass block generates different centrifugal forces due to the change of the rotary speed, so that the pressure between the friction plate and the friction layer is changed, and the variable output of the damping force is realized when the speed is changed; the invention has simple structure and high damping efficiency, and can effectively reduce the cost and prolong the service life.
According to the utility model discloses rotation rate type attenuator of first aspect embodiment, the screw rod part includes ball nut and screw rod, and ball nut nests on the screw rod, ball nut and interior stiffening plate fixed connection.
According to the rotational speed type damper of the first aspect of the present invention, the sleeve member is a rotary structure, and the center line of the screw coincides with the center line of the sleeve member.
According to the utility model discloses rotation rate type attenuator of first aspect embodiment, the frictional layer is the ring circular structure, the lateral wall of frictional layer and the inside wall fixed connection of sleeve part, the inside wall and the friction disc contact of frictional layer.
According to the utility model discloses rotation rate type attenuator of first aspect embodiment, overhanging board and quality piece all set up the multiunit, and each overhanging board is the circumference array and sets up on the elastomer, and the one end of each overhanging board is inlayed admittedly in the elastomer, and the other end of each overhanging board is overhanging and follows the radial extension setting of screw rod part.
According to the utility model discloses rotation rate type attenuator of first aspect embodiment, interior stiffening plate sets up the multiunit, and each interior stiffening plate sets up with the crisscross interval of each overhanging plate, and each interior stiffening plate sets up along screw rod part's radial extension, and each interior stiffening plate is buried underground in the elastomer.
According to the rotational velocity type damper of the first aspect of the present invention, one end of the screw rod is nested in the sleeve member, and the other end of the screw rod is provided with the first ear ring.
According to the rotational velocity type damper of the first aspect of the present invention, the one end of the sleeve member is provided with the hole capable of accommodating the screw, and the other end of the sleeve member is provided with the second ear ring.
According to the utility model discloses rotation rate type attenuator of first aspect embodiment, the one end of screw rod is equipped with the stopper, is equipped with in the sleeve part with stopper complex limiting plate.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a front view of an embodiment of the present invention;
fig. 2 is a cross-sectional view a-a of fig. 1.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 2, a rotational speed type damper includes: a sleeve member 10, a screw member, a rotating disc member and a frictional damping member; wherein the screw member is arranged in the sleeve member 10, and the screw member and the sleeve member 10 can move relatively; the rotary disk component is arranged in the sleeve component 10 and comprises an elastic body 105, an inner stiffening plate 106 and an outer stiffening plate 104, the inner stiffening plate 106 is fixedly connected with the screw component, the elastic body 105 is arranged on the inner stiffening plate 106, the outer stiffening plate 104 is arranged on the elastic body 105, and the screw component is used for driving the rotary disk component to rotate; the friction damping component comprises a friction layer 101 and a mass block 103, the friction layer 101 is arranged on the inner side wall of the sleeve component 10, one end of the mass block 103 is connected with an outward extending plate 104, the other end of the mass block 103 is provided with a friction plate 102, the friction layer 101 and the friction plate 102 form a friction pair, and the outward extending plate 104 has a tendency of being far away from the screw component under the action of centrifugal force of an elastic body 105 and is used for increasing pressure between the friction layer 101 and the friction plate 102. The rotary speed type damper induces the action of vibration force through the screw rod part, when the sleeve part 10 and the screw rod part move relatively, the rotating disc part rotates and drives the mass block 103 to rotate, the change of the rotating speed enables the mass block 103 to generate different centrifugal force, so that the pressure between the friction plate 102 and the friction layer 101 is changed, and the variable output of the damping force is realized when the speed is changed; the invention has simple structure and high damping efficiency, and can effectively reduce the cost and prolong the service life. In this embodiment, the elastic body 105 is a polymer material that deforms significantly under stress and can be quickly restored to a state close to its original state and size after the stress is relaxed. When the outer cantilever plate 104 has a tendency to move away from the screw member, the outer cantilever plate 104 will exert a tensile stress on the outer end of the elastomer body 105, and the inner stiffener plate 106 is fixedly connected to the screw member, anchoring the inner end of the elastomer body 105, so that the elastomer body 105 is deformed under the combined action of the outer cantilever plate 104 and the inner stiffener plate 106. The mass 103 is a block structure having a certain mass.
In the embodiment, the screw member includes a ball nut 22 and a screw 21, the ball nut 22 is nested on the screw 21, and the ball nut 22 is fixedly connected with the inner stiffener 106. The movement of the screw 21 drives the ball nut 22 to rotate, the ball nut 22 rotates to drive the inner stiffening plate 106 to rotate, the inner stiffening plate 106 drives the elastic body 105, the outer extension plate 104 and the mass block 103 to synchronously rotate, and the friction plate 102 on the mass block 103 and the friction layer 101 in the sleeve generate friction energy consumption.
In the present embodiment, the sleeve member 10 is a rotary body structure, specifically, a "T" type sleeve structure, which facilitates accommodating both the screw member and the rotary disk member, a bearing 24 is provided between the sleeve member 10 and the ball nut 22, and the center line of the screw 21 coincides with the center line of the sleeve member 10. Preferably, the friction layer 101 has an annular structure, an outer side wall of the friction layer 101 is fixedly connected to an inner side wall of the sleeve member 10, and the inner side wall of the friction layer 101 is in contact with the friction plate 102.
In the present embodiment, the overhanging plates 104 and the mass 103 are provided in multiple sets, each overhanging plate 104 is arranged on the elastic body 105 in a circumferential array, one end of each overhanging plate 104 is embedded in the elastic body 105, and the other end of each overhanging plate 104 extends outwards and extends along the radial direction of the screw component. Preferably, the inner stiffening plates 106 are provided in multiple sets, each inner stiffening plate 106 and each outer stiffening plate 104 are staggered and spaced, each inner stiffening plate 106 extends in the radial direction of the screw member, each inner stiffening plate 106 is embedded in the elastic body 105, and the inner end of each inner stiffening plate 106 is fixed to the ball nut 22. The elastic body 105 is also of an annular structure, each inner stiffening plate 106 and each outer extending plate 104 are arranged at intervals along the circumferential direction of the elastic body 105, the intervals between the adjacent inner stiffening plates 106 and the adjacent outer extending plates 104 are equal, the elastic body 105 is arranged perpendicular to the central line of the screw 21, and the strength of the elastic body 105 can be increased by embedding the inner stiffening plates 106 in the elastic body 105; the inner end of the overhanging plate 104 is embedded in the elastic body 105 and is not contacted with the ball nut 22, and the outer end of the overhanging plate 104 extends out of the elastic body 105 and is connected with the mass 103. The inner stiffener plate 106 and the outer stiffener plate 104 are both steel plates.
In the present embodiment, one end of the screw 21 is nested in the sleeve member 10, and the other end of the screw 21 is provided with a first ear ring 23. One end of the sleeve member 10 is provided with a bore capable of receiving the screw 21 and the other end of the sleeve member 10 is provided with a second ear 12. The first earring 23 and the second earring 12 are used for attachment to a structure to secure installation and positioning.
In this embodiment, a limit block 211 is disposed at one end of the screw 21, and a limit plate 11 cooperating with the limit block 211 is disposed in the sleeve member 10 to limit the movement stroke of the screw 21, so as to prevent the failure of the rotational speed damper.
The rotary speed type damper induces the action of external vibration force through the screw rod 21, when the screw rod 21 and the sleeve part 10 generate relative linear motion, the ball nut 22 drives the rotating disc part to rotate, and because the elastic body 105 is fixedly connected with each outer extension plate 104, the outer end of each outer extension plate 104 is fixedly connected with the mass block 103, the elastic body 105, each inner stiffening plate 106, each outer extension plate 104 and each mass block 103 rotate synchronously; the other end of each mass block 103 is provided with a friction plate 102, and each friction plate 102 is in continuous contact with a friction layer 101 surrounding each mass block 103 to form a friction pair so as to generate damping force. As the rotation speed of the screw 21 increases, the outward extending plate 104 tends to be away from the screw 21 under the action of centrifugal force, so that the pressure between each friction plate 102 and the friction layer 101 changes, thereby realizing variable output of damping force when the speed condition is changed; the invention has simple structure and high damping efficiency, and can effectively reduce the cost and prolong the service life.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A rotary velocity type damper, comprising: a sleeve member, a screw member, a rotating disc member and a frictional damping member;
wherein the screw member is disposed within the sleeve member, the screw member and the sleeve member being relatively movable;
the rotary disc component is arranged in the sleeve component and comprises an elastic body, an inner stiffening plate and an outer stretching plate, the inner stiffening plate is fixedly connected with the screw rod component, the elastic body is arranged on the inner stiffening plate, the outer stretching plate is arranged on the elastic body, and the screw rod component is used for driving the rotary disc component to rotate;
the friction damping component comprises a friction layer and a mass block, the friction layer is arranged on the inner side wall of the sleeve component, one end of the mass block is connected with the outward extending plate, the other end of the mass block is provided with a friction plate, the friction layer and the friction plate form a friction pair, and the outward extending plate has a tendency of being far away from the screw rod component under the action of centrifugal force of the elastic body and is used for increasing pressure between the friction layer and the friction plate.
2. A rotational velocity type damper according to claim 1, characterized in that: the screw component comprises a ball nut and a screw, the ball nut is nested on the screw, and the ball nut is fixedly connected with the inner stiffening plate.
3. A rotational velocity type damper according to claim 2, characterized in that: the sleeve part is of a rotating body structure, and the center line of the screw is superposed with the center line of the sleeve part.
4. A rotational velocity type damper according to claim 3, characterized in that: the friction layer is of a circular ring-shaped structure, the outer side wall of the friction layer is fixedly connected with the inner side wall of the sleeve part, and the inner side wall of the friction layer is in contact with the friction plate.
5. A rotational velocity type damper according to claim 1 or 4, characterized in that: the overhanging plates and the mass blocks are all provided with a plurality of groups, each overhanging plate is arranged on the elastic body in a circumferential array mode, one end of each overhanging plate is embedded and fixed in the elastic body, and the other end of each overhanging plate extends outwards and extends along the radial direction of the screw rod component.
6. A rotational velocity type damper according to claim 5, characterized in that: the inner stiffening plates are arranged in a plurality of groups, each inner stiffening plate and each outer stiffening plate are arranged at intervals in a staggered mode, each inner stiffening plate extends along the radial direction of the screw rod component, and each inner stiffening plate is embedded in the elastic body.
7. A rotational velocity type damper according to claim 2, characterized in that: one end of the screw rod is nested in the sleeve part, and the other end of the screw rod is provided with a first lug ring.
8. A rotational velocity type damper according to claim 7, characterized in that: one end of the sleeve part is provided with a hole capable of accommodating the screw rod, and the other end of the sleeve part is provided with a second earring.
9. A rotational velocity type damper according to claim 8, characterized in that: and a limiting block is arranged at one end of the screw rod, and a limiting plate matched with the limiting block is arranged in the sleeve part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022634974.9U CN213981844U (en) | 2020-11-13 | 2020-11-13 | Rotational speed type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022634974.9U CN213981844U (en) | 2020-11-13 | 2020-11-13 | Rotational speed type damper |
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| Publication Number | Publication Date |
|---|---|
| CN213981844U true CN213981844U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022634974.9U Active CN213981844U (en) | 2020-11-13 | 2020-11-13 | Rotational speed type damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809351A (en) * | 2022-05-27 | 2022-07-29 | 江苏科技大学 | Spiral rotary friction type metal damper |
| CN115163724A (en) * | 2022-08-11 | 2022-10-11 | 重庆大学 | Magneto-rheological inertia damper |
-
2020
- 2020-11-13 CN CN202022634974.9U patent/CN213981844U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809351A (en) * | 2022-05-27 | 2022-07-29 | 江苏科技大学 | Spiral rotary friction type metal damper |
| CN114809351B (en) * | 2022-05-27 | 2024-04-19 | 江苏科技大学 | Spiral rotary friction type metal damper |
| CN115163724A (en) * | 2022-08-11 | 2022-10-11 | 重庆大学 | Magneto-rheological inertia damper |
| CN115163724B (en) * | 2022-08-11 | 2024-06-04 | 重庆大学 | Magneto-rheological inertia damper |
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