阅读说明：本技术 低屈服点钢黏滞阻尼器及其阻尼墙 (Low-yield-point steel viscous damper and damping wall thereof ) 是由 张玉伟 于 2021-08-06 设计创作，主要内容包括：本发明提供了一种低屈服点钢黏滞阻尼器及其阻尼墙,阻尼器包括：缸体包括第一套体和第二套体,第一套体和第二套体之间具有流通通道,第二套体内具有容纳黏滞液体的阻尼腔；活塞件包括多个动活塞和多个静活塞,多个动活塞间隔设置于活塞杆上,多个静活塞滑动设置在阻尼腔内,多个静活塞和多个动活塞交错设置以将阻尼腔分割成多个子腔体；第二套体上间隔设有多个过流孔,每个子腔体均通过相应位置的过流孔与流通通道相连通,多个动活塞设置于活塞杆上,活塞杆滑动设置于多个静活塞上。从而使得从两个体积减小的子腔体进入到流通通道的黏滞液体在流通通道内形成对冲,以提高对活塞杆移动的阻力,从而提高阻尼效果。(The invention provides a low yield point steel viscous damper and a damping wall thereof, wherein the damper comprises: the cylinder body comprises a first sleeve body and a second sleeve body, a flow passage is arranged between the first sleeve body and the second sleeve body, and a damping cavity for containing viscous liquid is arranged in the second sleeve body; the piston piece comprises a plurality of movable pistons and a plurality of static pistons, the movable pistons are arranged on the piston rod at intervals, the static pistons are arranged in the damping cavity in a sliding mode, and the static pistons and the movable pistons are arranged in a staggered mode so as to divide the damping cavity into a plurality of sub-cavities; a plurality of through holes are formed in the second sleeve body at intervals, each sub-cavity is communicated with the circulation channel through the through holes in corresponding positions, the movable pistons are arranged on the piston rods, and the piston rods are arranged on the static pistons in a sliding mode. Thereby make the viscid liquid that enters into the circulation passageway from two sub-cavities that the volume reduces form the offset in the circulation passageway to improve the resistance to the piston rod removal, thereby improve the damping effect.)

1. A low yield point steel viscous damper, comprising:

the cylinder body comprises a first sleeve body and a second sleeve body, the first sleeve body is sleeved on the second sleeve body, a circulation channel is arranged between the first sleeve body and the second sleeve body, and a damping cavity for containing viscous liquid is arranged in the second sleeve body;

the piston assembly comprises a piston rod and a piston piece, the piston piece comprises a plurality of movable pistons and a plurality of static pistons, the movable pistons are arranged on the piston rod at intervals, the static pistons are arranged in the damping cavity in a sliding mode, and the static pistons and the movable pistons are arranged in a staggered mode to divide the damping cavity into a plurality of sub cavities;

the second sleeve body is provided with a plurality of overflowing holes at intervals, each sub-cavity is communicated with the circulating channel through the overflowing holes at corresponding positions, the movable piston is arranged on the piston rod, and the piston rod is arranged on the plurality of stationary pistons in a sliding mode.

2. The low-yield-point steel viscous damper as recited in claim 1, wherein a plurality of grooves are spaced on the inner surface of the first sleeve body in the circumferential direction of the first sleeve body, and the flow channel is defined between each groove and the second sleeve body.

3. The low yield point steel viscous damper of claim 2, wherein the second sleeve body is provided with a guide groove, the inner surface of the first sleeve body is provided with a guide bar, and the guide bar is slidably arranged in the guide groove.

4. The low yield point steel viscous damper of claim 3, wherein the second sleeve comprises two cylinder liners, each of the cylinder liners having a plurality of the flow holes disposed therein.

5. The low yield point steel viscous damper of claim 4, wherein one end of one of the cylinder liners facing the other cylinder liner is provided with a plurality of splines, and at least a portion of the flowbore is the plurality of splines.

6. The low-yield-point steel viscous damper as claimed in claim 4, wherein an inner sleeve is disposed on the inner surface of the first sleeve body, the groove and the guide bar are disposed on the inner sleeve, end caps are disposed at both ends of the first sleeve body, each end cap abuts against the cylinder sleeve on the corresponding side, and each end cap is connected to the end surface of the inner sleeve on the corresponding side in a sealing manner.

7. The low yield point steel viscous damper of claim 6, wherein a seal ring is disposed between each end cap and the end face of the inner sleeve on the corresponding side.

8. The low yield point steel viscous damper of claim 6, wherein the end cap is threaded into the first sleeve.

9. The low-yield-point steel viscous damper as claimed in claim 8, wherein one end of the piston rod penetrates through the damping cavity, the other end of the piston rod is provided with a first connecting portion, one end of the first sleeve body, which is far away from the piston rod, is in threaded connection with a second connecting portion, and the second connecting portion is stopped against the end cover on the corresponding side.

10. A damping wall comprising the low yield point steel viscous damper of any one of claims 1 to 9.

Technical Field

The invention relates to a low-yield-point steel viscous damper and a damping wall thereof.

Background

The damper is made on the principle that the throttling resistance is generated when fluid passes through the throttling hole, and is equipment related to the movement speed of the piston, but the throttling resistance generated when the fluid passes through the throttling hole cannot meet the requirement of an earthquake high-incidence area, so that a viscous damper capable of improving the throttling resistance during the movement of the piston is required to improve the damping effect.

Disclosure of Invention

The invention aims to provide a low-yield-point steel viscous damper to improve the damping effect.

The above object of the present invention can be achieved by the following technical solutions:

the invention provides a low yield point steel viscous damper, which comprises:

the cylinder body comprises a first sleeve body and a second sleeve body, the first sleeve body is sleeved on the second sleeve body, a circulation channel is arranged between the first sleeve body and the second sleeve body, and a damping cavity for containing viscous liquid is arranged in the second sleeve body;

the piston assembly comprises a piston rod and a piston piece, the piston piece comprises a plurality of movable pistons and a plurality of static pistons, the movable pistons are arranged on the piston rod at intervals, the static pistons are arranged in the damping cavity in a sliding mode, and the static pistons and the movable pistons are arranged in a staggered mode to divide the damping cavity into a plurality of sub cavities;

the second sleeve body is provided with a plurality of overflowing holes at intervals, each sub-cavity is communicated with the circulating channel through the overflowing holes at corresponding positions, the movable piston is arranged on the piston rod, and the piston rod is arranged on the plurality of stationary pistons in a sliding mode.

In some embodiments of the invention, the inner surface of the first sleeve body is provided with a plurality of grooves at intervals in the circumferential direction of the first sleeve body, and the grooves and the second sleeve body define the flow channel therebetween.

In some embodiments of the present invention, a guide groove is formed on the second sleeve body, and a guide bar is arranged on the inner surface of the first sleeve body, and the guide bar is slidably disposed in the guide groove.

In some embodiments of the invention, the second sleeve body comprises two cylinder liners, each of which is provided with a plurality of the overflowing holes.

In some embodiments of the present invention, one end of one of the cylinder liners facing the other cylinder liner is provided with a plurality of tooth grooves, and at least a part of the overflowing holes are a plurality of tooth grooves.

In some embodiments of the present invention, an inner sleeve is disposed on an inner surface of the first sleeve body, the groove and the guide bar are disposed on the inner sleeve, end caps are disposed at two ends of the first sleeve body, each end cap abuts against the cylinder sleeve on a corresponding side, and each end cap is hermetically connected to an end surface of the inner sleeve on the corresponding side.

In some embodiments of the present invention, a sealing ring is disposed between each end cap and the end surface of the inner sleeve on the corresponding side.

In some embodiments of the invention, the end cap is threaded into the first sleeve.

In some embodiments of the present invention, one end of the piston rod penetrates through the damping chamber, the other end of the piston rod is provided with a first connecting portion, one end of the first sleeve, which is far away from the piston rod, is connected with a second connecting portion in a threaded manner, and the second connecting portion abuts against the end cap on the corresponding side.

The invention also provides a damping wall which comprises the low-yield-point steel viscous damper.

The low yield point steel viscous damper has the characteristics and advantages that:

when the piston rod drives a plurality of movable pistons to move in the damping cavity, a part of the volume of the sub-cavity between the movable piston and the static piston is increased, the volume of the sub-cavity of the other part is reduced, viscous liquid in the sub-cavity with the reduced volume enters the circulation channel through the through-flow holes of the corresponding positions, the viscous liquid in the circulation channel can flow into the sub-cavity with the increased volume, the sub-cavity with the increased volume is positioned between the sub-cavities with the reduced volume, so that the viscous liquid entering the circulation channel from the sub-cavities with the reduced volume forms hedging in the circulation channel, the resistance to the movement of the piston rod is improved, and the damping effect is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a cross-sectional view of a damper according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a damper according to another state of the embodiment of the invention;

FIG. 3 is a schematic view of a first glove body according to an embodiment of the invention;

FIG. 4 is a cross-sectional view of a cylinder liner according to an embodiment of the present invention.

The reference numbers illustrate:

1. a cylinder body; 11. a first sleeve body; 111. a groove; 112. a guide strip; 113. an inner sleeve; 12. a second sleeve body; 121. an overflowing hole; 122. a guide groove; 123. a cylinder liner; 1231. a tooth socket; 13. a flow-through channel; 14. a damping chamber; 141. a sub-cavity;

2. a piston assembly; 21. a piston rod; 211. a first connection portion; 22. a piston member; 221. a movable piston; 222. a stationary piston;

3. an end cap; 31. a seal ring;

4. a second connecting portion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the present invention provides a low yield point steel viscous damper, comprising: the cylinder body 1 comprises a first sleeve body 11 and a second sleeve body 12, the first sleeve body 11 is sleeved on the second sleeve body 12, a flow passage 13 is arranged between the first sleeve body 11 and the second sleeve body 12, and a damping cavity 14 for containing viscous liquid is arranged in the second sleeve body 12; the piston assembly 2 comprises a piston rod 21 and a piston piece 22, the piston piece 22 comprises a plurality of movable pistons 221 and a plurality of static pistons 222, the plurality of movable pistons 221 are arranged on the piston rod 21 at intervals, the plurality of static pistons 222 are arranged in the damping cavity 14 in a sliding mode, and the plurality of static pistons 222 and the plurality of movable pistons 221 are arranged in a staggered mode to divide the damping cavity 14 into a plurality of sub-cavities 141; a plurality of through holes 121 are formed in the second sleeve body 12 at intervals, each sub-cavity 141 is communicated with the flow channel 13 through the through holes 121 at corresponding positions, the movable piston 221 is arranged on the piston rod 21, and the piston rod 21 is arranged on the static piston 222 in a sliding mode.

It can be understood that, when the piston rod 21 drives the plurality of movable pistons 221 to move in the damping cavity 14, a part of the volume of the sub-cavity 141 between the movable piston 221 and the stationary piston 222 increases, the volume of the other part of the sub-cavity 141 decreases, viscous liquid in the sub-cavity 141 with the decreased volume enters the flow channel 13 through the through hole 121 at the corresponding position, the viscous liquid in the flow channel 13 flows into the sub-cavity 141 with the increased volume, and the sub-cavity 141 with the increased volume is located between the two sub-cavities 141 with the decreased volume, so that the viscous liquid entering the flow channel 13 from the two sub-cavities 141 with the decreased volume forms a counter-impact in the flow channel 13, so as to improve the resistance to the movement of the piston rod 21, and improve the damping effect.

In some embodiments of the present invention, a plurality of grooves 111 are spaced on the inner surface of the first sleeve 11 in the circumferential direction of the first sleeve 11, and each of the grooves 111 and the second sleeve 12 defines the flow channel 13 therebetween. This makes the structure of the flow channel 13 simpler, and avoids the need to form through holes in the stationary piston 222 and the movable piston 221, thereby making the structure of the piston member 22 simpler and more reliable.

In some embodiments of the present invention, the second sheath body 12 is provided with a guide groove 122, the inner surface of the first sheath body 11 is provided with a guide bar 112, and the guide bar 112 is slidably disposed in the guide groove 122. It can be understood that, by arranging the guide bar 112 in the guide groove 122, the first sheath body 11 and the second sheath body 12 can be positioned and installed, and the first sheath body 11 and the second sheath body 12 are prevented from being misaligned.

In some embodiments of the present invention, the second sleeve 12 includes two cylinder liners 123, and each cylinder liner 123 has a plurality of through-flow holes 121. It will be appreciated that by dividing the second sleeve 12 into two cylinder liners 123, the second sleeve 12 is easily machined and the second sleeve 12 is easily installed within the first sleeve 11.

In some embodiments of the present invention, one end of one of the cylinder liners 123 facing the other cylinder liner 123 is provided with a plurality of tooth grooves 1231, and at least a portion of the flow holes 121 are provided with a plurality of tooth grooves 1231. It can be understood that a part of the overflowing holes 121 are the splines 1231 on the cylinder liners 123, so that the overflowing holes 121 are formed between two adjacent cylinder liners 123, and no sealing is needed between the two cylinder liners 123, so that the structure of the second sleeve body 12 is simpler.

In some embodiments of the present invention, an inner sleeve 113 is disposed on an inner surface of the first sleeve body 11, the groove 111 and the guide bar 112 are both disposed on the inner sleeve 113, end caps 3 are disposed at both ends of the first sleeve body 11, each end cap 3 abuts against the cylinder sleeve 123 on a corresponding side, and each end cap 3 is hermetically connected to an end surface of the inner sleeve 113 on the corresponding side. It will be appreciated that by limiting the position of the two cylinder liners 123 by the two end caps 3, it is ensured that the two cylinder liners 123 can be stably arranged in the first sleeve 11, facilitating the installation of the two cylinder liners 123.

In some embodiments of the present invention, a sealing ring 31 is disposed between each end cap 3 and the end surface of the inner sleeve 113 on the corresponding side. It will be appreciated that by disposing the sealing ring 31 between the end cap 3 and the inner sleeve 113, the flow passage 13 and the damping chamber 14 are sealed, and viscous liquid in the damping chamber 14 is prevented from leaking.

In some embodiments of the invention, the end cap 3 is threaded into the first sleeve 11. It will be appreciated that the mounting of the end cap 3 is facilitated by the end cap 3 being threaded into the first sleeve 11.

In some embodiments of the present invention, one end of the piston rod 21 is inserted into the damping chamber 14, the other end of the piston rod 21 is provided with a first connecting portion 211, one end of the first sleeve 11 away from the piston rod 21 is connected with a second connecting portion 4 in a threaded manner, and the second connecting portion 4 abuts against the end cover 3 on the corresponding side.

It can be understood that the first connecting portion 211 is rotatably connected to the first wall, and the second connecting portion 4 is rotatably connected to the second wall, so that the sealing performance of the end cover 3 is ensured by screwing the second connecting portion 4 onto the first sleeve body 11 and positioning the end cover 3.

The invention also provides a damping wall which comprises the low-yield-point steel viscous damper.

According to the damping wall provided by the embodiment of the invention, when the piston rod 21 drives the plurality of movable pistons 221 to move in the damping cavity 14, one part of the sub-cavities 141 between the movable pistons 221 and the static pistons 222 is increased in volume, the other part of the sub-cavities 141 is decreased in volume, viscous liquid in the sub-cavities 141 with decreased volume enters the flow channel 13 through the through holes 121 at corresponding positions, the viscous liquid in the flow channel 13 flows into the sub-cavities 141 with increased volume, and the sub-cavities 141 with increased volume are located between the two sub-cavities 141 with decreased volume, so that the viscous liquid entering the flow channel 13 from the two sub-cavities 141 with decreased volume forms a counter-impact in the flow channel 13, so as to improve the resistance to the movement of the piston rod 21, and improve the damping effect.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.