CN217421993U - Damping-adjustable viscous damper with slender damping holes - Google Patents
Damping-adjustable viscous damper with slender damping holes Download PDFInfo
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- CN217421993U CN217421993U CN202220543999.4U CN202220543999U CN217421993U CN 217421993 U CN217421993 U CN 217421993U CN 202220543999 U CN202220543999 U CN 202220543999U CN 217421993 U CN217421993 U CN 217421993U
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Abstract
The invention discloses a damping-adjustable viscous damper with a slender damping hole, belonging to the technical field of structural damping; the anti-explosion cylinder mainly comprises an ear seat, an ear seat connecting bolt, a bottom cylinder, a cylinder body, a cylinder cover, a dustproof sleeve, an oil filling hole sealing bolt, an adjusting piston, a damping hole bolt, a guide ring, a lace-shaped sealing ring and the like. The damping hole bolt mounting holes with a certain number and size are formed in the adjusting piston, the damping hole bolts comprise full-sealed damping hole bolts without damping holes and damping hole bolts with damping holes, the damping hole bolts with the damping holes are provided with damping holes with certain axial and radial sizes, the damping hole bolts with the damping holes with different sizes are combined, the output damping of the damper can be adjusted as required, and the application range of the damper is effectively enlarged. The invention has the advantages of simple structure, convenient adjustment, assembly, installation and disassembly, stable mechanical performance, convenient later maintenance and effectively reduced development, production and maintenance cost.
Description
Technical Field
The invention belongs to the technical field of structural shock absorption, and particularly relates to a damping-adjustable viscous damper with a slender damping hole.
Background
The viscous damper is a speed-related damper, is applied to the fields of machinery, war industry, aviation and the like at first, and is used for controlling vibration and impact of equipment. With the continuous progress of the technology, the viscous damper is gradually popularized to civil engineering such as building structures, bridges and the like, and is used for dissipating energy input to the structures such as earthquake loads, wind loads and the like. The viscous damper mainly comprises a damping coefficient, a damping index, a maximum damping force and other technical indexes. The damping coefficient of conventional viscous damper is the fixed value, can't satisfy the demand that needs different damping force under the different project uses in the in-service use, and the damping force is less, leads to the attenuator oversize for guaranteeing sufficient damping force, and the size and the parameter that all need redevelop the attenuator according to the project demand at every turn have greatly increased people, financial and time cost.
Patent 201310693362.9 entitled "adjustable viscous damper" has damping holes on the inner and outer rods of the piston rod, the coincident damping holes are used as damping channels, and the piston rod is provided with an adjusting nut, the size of the damping channel is adjusted by the adjusting nut, so that the damper can generate different damping force effects. But this patent can't the structure complicated, can not fine assurance precision, and job stabilization nature is not good enough.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved is as follows:
in order to avoid the defects in the prior art, the invention provides a damping-adjustable slender damping hole viscous damper, a piston reciprocates in a cylinder 6 under the action of an external load and continuously extrudes viscous fluid in the cylinder 6, and the viscous fluid provides a large and stable damping force when flowing through a slender damping hole on a damping hole bolt 7. The damper has the advantages that the energy consumption and shock absorption capacity of the damper is fully exerted through scientific combination of damping hole bolts with different sizes and numbers before leaving a factory and in use, the application range of the damper is expanded, and the shock absorption effect and safety performance of a building structure are effectively improved.
The technical scheme of the invention is as follows: a damping-adjustable slender damping hole viscous damper comprises an ear seat, an ear seat connecting bolt, a bottom cylinder, a cylinder body, a cylinder cover, a dustproof sleeve, an oil filling hole sealing bolt, an adjusting piston, a damping hole bolt, a guide ring and a lace-shaped sealing ring, wherein one end of the ear seat is provided with a connecting thread and is firmly connected with one end of the bottom cylinder and one end of the adjusting piston through the ear seat connecting bolt; the other end of the lug seat is provided with a connecting lug ring which is firmly connected with the mounting support through a connecting pin shaft so as to transfer the acting load of the damper;
one end of the bottom cylinder is an open end, the other end of the bottom cylinder is a semi-open end, an exhaust hole is formed in the side wall of the bottom cylinder, and the open end is provided with a cylinder body connecting thread and is fixedly connected with the semi-open end of the cylinder body; the semi-open end of the bottom cylinder is provided with an ear seat connecting thread and is firmly connected with an ear seat through an ear seat connecting bolt so as to transfer the acting load of the damper and protect the exposed part of the piston rod of the adjusting piston;
one end of the cylinder body is a semi-open end, the other end of the cylinder body is an open end, the semi-open end of the cylinder body is provided with a cylinder body connecting thread and is firmly connected with the open end of the bottom cylinder, and meanwhile, an adjusting piston rod installation through hole is arranged; the inner peripheral surface of the open end of the cylinder body is provided with an O-shaped sealing ring mounting groove and a cylinder body connecting thread which are firmly connected with the cylinder cover through the thread so as to transfer the acting load of the damper;
one end of the cylinder cover is an open end, the other end of the cylinder cover is a semi-open end and is provided with a boss with a certain size, and an oil filling hole with threads is arranged on the radial cylinder wall; an O-shaped sealing ring mounting groove and a cylinder body connecting thread are arranged on the inner peripheral surface of the open end of the cylinder cover and are firmly connected with the semi-open end of the cylinder body through the thread; a semi-open end of the cylinder cover is provided with a piston rod mounting through hole of the adjusting piston, the inner peripheral surface of the through hole is provided with a guide ring mounting groove and a lace-shaped sealing ring mounting groove which are spaced at a certain distance from each other, and the lace-shaped sealing ring mounting groove is closer to the open end of the cylinder cover; the oil injection hole is matched with a sealing bolt and an O-shaped sealing ring with corresponding sizes;
two ends of the dustproof sleeve are respectively and firmly connected with the boss and the lug seat at the semi-open end of the cylinder cover through the hose clamp so as to protect the exposed part of the piston rod of the adjusting piston;
one end of a piston rod of the adjusting piston is provided with a connecting thread and is firmly connected with the lug seat; the adjusting piston is respectively provided with two guide ring mounting grooves and two lace-shaped sealing ring mounting grooves along the axial direction, and the two lace-shaped sealing ring mounting grooves are arranged between the two guide ring mounting grooves and are spaced at a certain distance from each other; a plurality of threaded damping hole bolt mounting holes are uniformly distributed on the adjusting piston;
the further technical scheme of the invention is as follows: the damping hole bolts are divided into two types, the first type is a full-sealed damping hole bolt without a damping hole, the second type is a damping hole bolt with a damping hole, and the thread of the damping hole bolt is consistent with the thread of a damping hole bolt mounting hole on the adjusting piston.
The further technical scheme of the invention is as follows: the axial and radial sizes of the damping hole bolt mounting hole on the adjusting piston can be set or selected according to the use requirements of actual projects before leaving factories and in use.
The further technical scheme of the invention is as follows: the damping hole bolt mounting hole on the adjusting piston can be provided with one or two of a full-sealing damping hole bolt without a damping hole or a damping hole bolt with a damping hole as required so as to be combined and used in the same size or different sizes.
The invention further adopts the technical scheme that: two damping hole bolts are symmetrically arranged in each damping hole bolt installation hole in the adjusting piston.
The invention further adopts the technical scheme that: the axial and radial sizes of the damping holes on the damping hole bolts can be set or selected according to the use requirements of actual projects before leaving factories and in use.
Advantageous effects
The invention has the beneficial effects that:
(1) the damping hole viscous damper with adjustable damping can adjust the damping hole diameter and the hole length as required so as to realize the adjustment of the damping characteristic as required.
(2) The damping hole viscous damper with the adjustable damping can adjust the damping hole diameter and the hole length as required, can exert the maximum damping and energy consumption capacity of the damper through scientific combination, and effectively enlarges the application range of the damper.
(3) The damping-adjustable viscous damper with the slender damping holes has the advantages of simple structure, convenience in adjustment and assembly, stable mechanical performance, convenience in later-stage maintenance and repair, and effective reduction of development, production and repair costs.
(4) Two damping hole bolts are symmetrically arranged in the damping hole bolt mounting holes on the adjusting piston, so that the slenderness ratio of the damping holes is effectively improved, the structural size and the weight of the damper are greatly reduced while the output damping force is ensured, and the damper is convenient to mount and dismount in engineering practice.
Drawings
FIG. 1 is a schematic view of the overall structure of an elongated damping hole viscous damper with adjustable damping;
FIG. 2 is a schematic view of a regulating piston construction;
FIG. 3 is a schematic view of a damping hole bolt configuration;
description of reference numerals: 1-lug seat connecting bolt, 2-exhaust hole, 3-bottom cylinder, 4-piston rod support ring, 5-piston rod lace sealing ring, 6-cylinder body, 7-damping hole bolt, 8-cylinder body O-shaped sealing ring 1, 9-cylinder body O-shaped sealing ring 2, 10-oil injection hole sealing bolt, 11-oil injection hole O-shaped sealing ring, 12-throat hoop, 13-telescopic dustproof sleeve, 14-lug seat, 15-piston guide ring, 16-piston lace sealing ring, 17-cylinder cover and 18-adjusting piston.
Detailed Description
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1, an adjustable damping elongated orifice viscous damper comprises: the device comprises an ear seat connecting bolt 1, an exhaust hole 2, a bottom cylinder 3, a piston rod support ring 4, a piston rod lace-shaped sealing ring 5, a cylinder body 6, a damping hole bolt 7, a cylinder body O-shaped sealing ring 8, a cylinder body O-shaped sealing ring 9, an oil injection hole sealing bolt 10, an oil injection hole O-shaped sealing ring 11, a throat hoop 12, a telescopic dustproof sleeve 13, an ear seat 14, a piston guide ring 15, a piston lace-shaped sealing ring 16, a cylinder cover 17 and an adjusting piston 18.
One end of the lug seat 14 is provided with connecting threads, the left end of the lug seat connecting bolt 1 and the bottom cylinder 3 and the right end of the adjusting piston 18 are firmly connected, the other end of the lug seat 14 is provided with a connecting lug ring, and the lug ring is firmly connected with the mounting support through a connecting pin shaft so as to transmit the acting load of the damper.
The right end of the bottom cylinder 3 is an open end, the left end of the bottom cylinder is a semi-open end, the side wall of the bottom cylinder is provided with an exhaust hole, and the open end is provided with a cylinder body connecting thread and is firmly connected with the semi-open end at the left end of the cylinder body 6; the semi-open end is provided with an ear seat connecting thread and is firmly connected with an ear seat 14 through an ear seat connecting bolt 1 so as to transmit the acting load of the damper and protect the exposed part of the piston rod of the adjusting piston.
The left end of the cylinder body 6 is a semi-open end, the right end is an open end, and the left end is provided with a cylinder body connecting thread and is firmly connected with the cylinder body connecting thread at the left end of the bottom cylinder 3; meanwhile, a piston rod installation through hole of the adjusting piston 18 is arranged, the through hole is respectively provided with an installation groove of the piston rod guide ring 4 and an installation groove of the piston rod lace-shaped sealing ring 5 along the axial side wall, the two installation grooves are spaced at a certain distance, and the installation groove of the piston rod lace-shaped sealing ring 5 is closer to the right end of the cylinder body 6; the right end of the cylinder body 6 is provided with a cylinder body connecting thread and an installation groove of an O-shaped sealing ring 9, and the cylinder body 6 is firmly connected with the cylinder body connecting thread at the left end of the cylinder cover 17 through the cylinder body connecting thread so as to transfer the acting load of the damper.
The left end of the cylinder cover 17 is an open end, the right end of the cylinder cover 17 is a semi-open end, and the left end of the cylinder cover 17 is provided with a cylinder body connecting thread and an installation groove of an O-shaped sealing ring 8; the left end of the cylinder cover 17 is firmly connected with the right end of the cylinder body 6 through the cylinder body connecting thread so as to transfer the acting load of the damper; a boss with a certain size is arranged at the right end of the cylinder cover 17, and an oil filling hole with threads is arranged on the radial cylinder wall; the right end of the cylinder cover 17 is provided with a piston rod installation through hole for adjusting the piston 18, the through hole is respectively provided with an installation groove of the piston guide ring 4 and an installation groove of the piston rod lace-shaped sealing ring 5 along the axial side wall, the two installation grooves are spaced at a certain distance, and the installation groove of the piston rod lace-shaped sealing ring 5 is closer to the left end of the cylinder cover 17.
The nut of the oil filler hole sealing bolt 10 presses and seals an oil filler hole O-shaped sealing ring 11 and is firmly connected with the threaded oil filler hole on the cylinder cover 17 through threads, and the sealing effect is ensured.
The left end and the right end of the telescopic dustproof sleeve 13 are respectively sleeved on a boss and an ear seat 14 reserved on the cylinder cover 17 and are firmly connected through a hose clamp so as to protect the exposed part of the piston rod of the adjusting piston.
Referring to fig. 2 and 3, the left end of the adjusting piston 18 is a free end, the middle part is a piston main body, and the right end is provided with a connecting thread and is firmly connected with the ear seat 14; damping hole bolt mounting holes which are provided with threads and distributed uniformly are arranged on a piston main body of the adjusting piston 18 in a certain number and length; the middle part of the adjusting piston 18 is respectively provided with two mounting grooves of the piston guide ring 15 and two mounting grooves of the piston lace-shaped sealing ring 16 along the axial direction, and the mounting grooves of the piston lace-shaped sealing rings 16 are positioned between the mounting grooves of the piston guide rings 15 and are spaced at a certain distance from each other to ensure the sealing effect.
The damping hole bolts 7 are divided into two types, the first type is full-sealed damping hole bolts without damping holes, the second type is damping hole bolts with damping holes, and the threads of the damping hole bolts are consistent with the threads of the damping hole bolt mounting holes in the adjusting piston.
Furthermore, the axial and radial sizes of the damping holes on the damping hole bolt 7 with the damping holes can be scientifically combined before leaving the factory and in use according to the use requirements of actual projects, so that the optimal energy consumption capability of the damper is matched with the use requirements.
Furthermore, two damping hole bolts 7 should be symmetrically installed in each damping hole bolt installation hole on the adjusting piston 18 to ensure that the adjusting piston 18 has a slender damping hole and improve the slenderness ratio of the damping hole.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (6)
1. The utility model provides a damping adjustable elongated damping hole viscous damper which characterized in that: the anti-vibration oil cylinder comprises an ear seat, an ear seat connecting bolt, a bottom cylinder, a cylinder body, a cylinder cover, a dust-proof sleeve, an oil filling hole sealing bolt, an adjusting piston, a damping hole bolt, a guide ring and a bud-shaped sealing ring, wherein one end of the ear seat is provided with a connecting thread which is firmly connected with one end of the bottom cylinder and one end of the adjusting piston through the ear seat connecting bolt; the other end of the lug seat is provided with a connecting lug ring which is firmly connected with the mounting support through a connecting pin shaft so as to transfer the acting load of the damper;
one end of the bottom cylinder is an open end, the other end of the bottom cylinder is a semi-open end, an exhaust hole is formed in the side wall of the bottom cylinder, and the open end is provided with a cylinder body connecting thread and is fixedly connected with the semi-open end of the cylinder body; the semi-open end of the bottom cylinder is provided with an ear seat connecting thread and is firmly connected with an ear seat through an ear seat connecting bolt so as to transfer the acting load of the damper;
one end of the cylinder body is a semi-open end, the other end of the cylinder body is an open end, the semi-open end of the cylinder body is provided with a cylinder body connecting thread and is firmly connected with the open end of the bottom cylinder, and meanwhile, an adjusting piston rod installation through hole is arranged, and a guide ring installation groove and a lace-shaped sealing ring installation groove are respectively arranged on the installation through hole along the inner peripheral surface; the inner peripheral surface of the open end of the cylinder body is provided with an O-shaped sealing ring mounting groove and a cylinder body connecting thread which are firmly connected with the cylinder cover through the thread so as to transfer the acting load of the damper;
one end of the cylinder cover is an open end, the other end of the cylinder cover is a semi-open end and is provided with a boss, and an oil filling hole with threads is arranged on the radial cylinder wall; an O-shaped sealing ring mounting groove and a cylinder body connecting thread are arranged on the inner peripheral surface of the open end of the cylinder cover and are firmly connected with the semi-open end of the cylinder body through the thread; a semi-open end of the cylinder cover is provided with a piston rod mounting through hole of the adjusting piston, and the inner circumferential surface of the through hole is provided with a guide ring mounting groove and a bud-shaped sealing ring mounting groove; the oil injection hole is matched with a sealing bolt and an O-shaped sealing ring with corresponding sizes;
two ends of the dustproof sleeve are respectively and firmly connected with the boss and the lug seat at the semi-open end of the cylinder cover through the hose clamp so as to protect the exposed part of the piston rod of the adjusting piston;
one end of a piston rod of the adjusting piston is provided with a connecting thread and is firmly connected with the lug seat; the adjusting piston is respectively provided with two guide ring mounting grooves and two lace-shaped sealing ring mounting grooves along the axial direction; and a plurality of threaded damping hole bolt mounting holes are uniformly distributed on the adjusting piston.
2. The adjustable-damping elongated orifice viscous damper of claim 1, further characterized by: the damping hole bolts are divided into two types, the first type is a full-sealed damping hole bolt without a damping hole, the second type is a damping hole bolt with a damping hole, and the thread of the damping hole bolt is consistent with the thread of a damping hole bolt mounting hole on the adjusting piston.
3. The adjustable-damping elongated orifice viscous damper of claim 1, further characterized by: the axial and radial sizes of the damping hole bolt mounting hole on the adjusting piston are set or selected according to the use requirements of actual projects before leaving factories and in use.
4. The adjustable-damping elongated orifice viscous damper of claim 1, further characterized by: and one or two of a fully-sealed damping hole bolt without a damping hole or a damping hole bolt with a damping hole are installed in the damping hole bolt installation hole on the adjusting piston as required so as to be combined and used in the same size or different sizes.
5. The adjustable-damping elongated orifice viscous damper of claim 1, further characterized by: two damping hole bolts are symmetrically arranged in each damping hole bolt installation hole in the adjusting piston.
6. The adjustable-damping elongated orifice viscous damper of claim 1, further characterized by: the axial and radial sizes of the damping holes on the damping hole bolts are set or selected according to the use requirements of actual projects before delivery and in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220543999.4U CN217421993U (en) | 2022-03-10 | 2022-03-10 | Damping-adjustable viscous damper with slender damping holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220543999.4U CN217421993U (en) | 2022-03-10 | 2022-03-10 | Damping-adjustable viscous damper with slender damping holes |
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| CN217421993U true CN217421993U (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220543999.4U Active CN217421993U (en) | 2022-03-10 | 2022-03-10 | Damping-adjustable viscous damper with slender damping holes |
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| CN (1) | CN217421993U (en) |
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- 2022-03-10 CN CN202220543999.4U patent/CN217421993U/en active Active
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