CN209509881U - Rotary damper - Google Patents
Rotary damper Download PDFInfo
- Publication number
- CN209509881U CN209509881U CN201821350570.3U CN201821350570U CN209509881U CN 209509881 U CN209509881 U CN 209509881U CN 201821350570 U CN201821350570 U CN 201821350570U CN 209509881 U CN209509881 U CN 209509881U
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- damping
- damping ring
- torsional spring
- torque arm
- damper
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Abstract
A kind of rotary damper, including damping ring, damping torsional spring, damper seat；It damps torsion spring set and is set to damping ring, two ends for damping torsional spring are bent radially outward to form the first torque arm and the second torque arm；Damper seat offers the groove for being suitable for accommodating damping torsional spring, and damper seat offers the limiting slot for abutting with the first torque arm, the second torque arm, communicating with groove, and damper seat offers the positioning round orifice suitable for the insertion of damping ring one end；Damping ring passes through positioning round orifice and is clamped with damper seat.Rotary damper structure is compact, it is highly reliable, assembly is simple, axially occupy little space, damping due to rotation torque appropriate can be increased to strut in the case where increasing strut axial dimension on a small quantity, the running stability of strut equipment, the also mountable power output shaft end in rotating power sources such as motors is significantly increased, for the various Electronic control equipment changed greatly that load to balance its load imbalance degree, keep equipment operation more stable.
Description
Technical field
The utility model relates to damper technique fields, and in particular to a kind of rotary damper.
Background technique
Currently, the electronic strut of automobile tail gate on the market, generally uses the d.c. motor with reduction gearbox as power source, drives
Screw rod and driving screw-nut structure move, and the expanding-contracting action of electronic strut are realized, to drive the lifting of automobile tail gate.In electronic support
In the structure of bar, weight of the spring to balance gate can be generally set, when electronic strut drives automobile tail gate to reach open state,
Automobile tail gate is generally by automobile tail gate gravity torque, the torque of the spring force of electronic the strut, (transmission of electronic strut self resistance
System, deceleration system, motor form self resistance source) torque collective effect.But automobile tail gate gravity torque with it is electronic
The torque that the elastic force of strut inner spring generates has different changing rules, and the two cannot always be to maintain balance, there are gravitational moment and
The torque difference of spring force square, and in all angles position that automobile tail gate is opened, torque difference numerical value is to change.When this
When torque difference is more than the torque of electronic strut self resistance, then it may cause automobile tail gate and voluntarily fall when being opened into extreme higher position
It falls, the operation speed of automobile tail gate hovering, switch automobile tail gate can not be set because spring force torque is excessive again in middle section position
Phenomena such as degree also can be unstable.
In addition, automobile tail gate centre-of gravity shift also will affect spring force if vehicle is in uneven road surface (upward slope or descending)
Torque and automobile tail gate gravitational moment balance, and cause automobile tail gate voluntarily to fall, that automobile tail gate can not be arranged in middle section is outstanding
Stop or the unstable phenomenon of the speed of service of automobile tail gate.Therefore it needs that a kind of special damping is arranged in the inside of electronic strut
Device, to solve the above problem.
As it can be seen that the prior art could be improved and improve.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of rotary damper, knots
Structure is compact, and practical reliable, manufacturing cost is low, is easily assembled, it is intended to solve gravitational moment and the electronic strut elastic force torque of automobile tail gate
The speed of service that automobile tail gate caused by imbalance voluntarily falls, tail-gate hovering or tail-gate can not be arranged in middle section is jiggly to ask
Topic.
In order to achieve the above object, the utility model takes following technical scheme:
A kind of rotary damper, including damping ring, damping torsional spring, damper seat；The damping torsion spring set is set to damping ring,
Two ends of damping torsional spring are bent radially outward to form the first torque arm and the second torque arm；The damper seat, which offers, to be suitable for
The groove of damping torsional spring is accommodated, damper seat is offered to be communicated for abutting with the first torque arm, the second torque arm, with the groove
Limiting slot, damper seat offer suitable for damping ring one end insertion positioning round orifice；The damping ring passes through positioning round orifice
And it is clamped with damper seat.
In the rotary damper, the cross section of the groove is circle.
In the rotary damper, the cross section of the limiting slot is sector.
In the rotary damper, the groove is uniformly arranged along its outer peripheral surface there are four limiting slot.
In the rotary damper, the damping ring includes columned damping ring body, locating cylinder；It is described fixed
The axis of circle of position cylinder is overlapped with the axis of damping ring body, and locating cylinder setting is in damping ring body one end；The resistance
Buddhist nun's torsional spring interference is socketed on damping ring body；The part across positioning round orifice of the locating cylinder offers limited ring groove,
The limited ring groove is arranged with circlip, and the bottom surface of the circlip is connected to damper seat.
In the rotary damper, the damping ring body offers connecting hole in the axial direction.
The utility model has the advantages that
The utility model provides a kind of rotary damper, and interference is socketed with damping torsional spring, damping ring band on damping ring
Damping torsional spring be directly embedded into the groove for being installed on damper seat, damping ring pass through positioning round orifice after with damper seat card
It connects；The both ends of damping torsional spring are bent radially outward, form the first torque arm and the second torque arm, the first torque arm and the second torque arm
The cavity being placed between the two sides of limiting slot；When the shaft (such as electronic strut) for being arranged in damping ring rotates, with resistance
Buddhist nun's ring rotates simultaneously, will also rotate synchronously with the damping torsional spring of damping ring interference fit connection, but when damping torsional spring rotation
Limiting slot side by the active force imposed to the first torque arm, the second torque arm to hinder its rotation so that damping torsional spring
Elastic deformation and the rotation of damping ring relative damping torsional spring, the frictional force between damping ring and damping torsional spring is had an effect at this time,
Generate damping torque.
Detailed description of the invention
Fig. 1 is the assembling stereogram of rotary damper provided by the utility model.
Fig. 2 is the structure sectional view of the vertical direction of rotary damper provided by the utility model.
Fig. 3 is the structural perspective of damping ring in rotary damper provided by the utility model.
Fig. 4 is to damp the structural perspective of torsional spring in rotary damper provided by the utility model.
Fig. 5 is the structural perspective of damper seat in rotary damper provided by the utility model.
Fig. 6 is the bottom view of rotary damper provided by the utility model.
Specific embodiment
The utility model provides a kind of rotary damper, to make the purpose of this utility model, technical solution and effect more
It is clear, clear, the utility model is further described as follows in conjunction with drawings and embodiments.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
Fig. 1 to Fig. 6 is please referred to, the utility model provides a kind of rotary damper, including damping ring 1, damping torsional spring 2, resistance
Buddhist nun's device seat 3；Damping torsional spring 2 is sheathed on damping ring 1, and two ends of damping torsional spring 2 are bent radially outward to form the first torque arm
21 and second torque arm 22；Damper seat 3 offer be suitable for accommodate damping torsional spring 2 groove 33, damper seat 3 offer for
The limiting slot 32 that first torque arm 21, the second torque arm 22 are abutted, communicated with groove 33, damper seat 3 are offered suitable for damping ring 1
The positioning round orifice 31 of one end insertion；Damping ring 1 passes through positioning round orifice 31 and is clamped with damper seat 3.Pacify in rotary damper
During dress, damping torsional spring 2 is directly inserted on damping ring 1, damping torsional spring 2 and damping ring 1 are then placed in damper seat 3
In groove 33, and the first torque arm 21, the second torque arm 22 that damp on torsional spring 2 are placed in limiting slot 32, moreover, will damping
The one end of ring 1 is clamped damping ring 1 with damper seat 3 directly through positioning round orifice 31, enables damping ring
While opposing damper seat rotates, damping ring is also avoided to separate with damper seat.In rotary damper work, with damping ring
The drive rod of mating connection rotates, and drives damping ring rotation, and the damping torsional spring connecting with damping ring interference also rotates synchronously therewith；
But after turning an angle, in the case where the side of limiting slot is limited and is hindered to the first torque arm, the second torque arm, resistance
Buddhist nun's ring does not stop to rotate with drive rod, and elastic deformation will be occurred by damping torsional spring, and relative damping ring rotates, at this time damping ring with
Frictional force plays a role between damping torsional spring, produces damping torque.
When the limiting slot of damper seat is equal to resistance to opplied moment caused by damping the first torque arm of torsional spring, the second torque arm
Buddhist nun's ring and damping torsional spring between moment of friction when, then damp torsional spring start relative damping ring rotation, in the process, damping turn round
The diameter of spring is almost without changing, and therefore, there are value of pressure between damping torsional spring and damping ring, and send out between the two
When raw sliding, then definite value frictional force and definite value moment of friction are generated.
Specifically, the cross section of groove 33 is circle, is matched substantially with damping torsional spring.
Specifically, the cross section of limiting slot 32 is sector.The two sides of limiting slot 32 are active force faces, suitable in damping ring
When hour hands or counterclockwise rotation, the first torque arm, the second torque arm will be connected to the same side of limiting slot.
Specifically, as shown in figure 5, groove 33 is uniformly arranged along its outer peripheral surface, there are four limiting slots.
Specifically, damping ring 1 includes columned damping ring body 11, locating cylinder 12；The axis of locating cylinder 12
Line is overlapped with the axis of damping ring body 11, and the setting of locating cylinder 12 is in damping 11 one end of ring body, locating cylinder 12
It is integrally formed with damping ring body 11；The other end of ring body 11 is damped integrally formed with limiting section 15, the limiting section and resistance
Buddhist nun's torsional spring abuts against, and prevents damping torsional spring from moving along axis direction and it is caused to separate with damping ring；Damp 2 mistake of torsional spring
It is full of and is socketed on damping ring body 11；The part across positioning round orifice 31 of locating cylinder 12 offers limited ring groove 13, limit
Annular groove 13 is arranged with circlip 4, and the bottom surface of circlip 4 is connected to damper seat 3.Damp outer peripheral surface and the resistance of ring body 11
Buddhist nun's torsional spring is in contact, and is frictional force acting surface.Damping torsional spring setting the first torque arm, the second torque arm be in order to damping torsional spring with
Damping ring allows damper seat to impose active force to the first torque arm, the second torque arm when rotating, to hinder damping torsional spring to continue to rotate, into
And make it deformation occurs and damping ring and damping torsional spring between generate moment of friction.
Specifically, damping ring body 11 offers toothed connecting hole 14 in the axial direction.The connecting hole connects for cooperating
Drive rod, transmission shaft of electronic strut etc. are connect, as shown in figure 3, the inner wall of the connecting hole is provided with straight-tooth, with drive rod grinding tooth
Connection, so that drive rod is able to drive damping ring and rotates together, it is of course also possible to be helical teeth.In addition, drive rod and damping ring
It can be fixedly connected by pin, key etc..
In conclusion the utility model provides a kind of rotary damper, interference is socketed with damping torsional spring on damping ring,
Damping ring with damping torsional spring be directly embedded into the groove for being installed on damper seat, damping ring pass through positioning round orifice after with damper
Seat is clamped；The both ends of damping torsional spring are bent radially outward, form the first torque arm and the second torque arm, the first torque arm and
Second torque arm is placed in the cavity between the two sides of limiting slot；When the shaft (such as electronic strut) for being arranged in damping ring rotates
When, it is rotated simultaneously with damping ring, will also rotate synchronously with the damping torsional spring of damping ring interference fit connection, but be turned round in damping
Spring rotate when limiting slot side by the active force imposed to the first torque arm, the second torque arm to hinder its rotation so that damping
Elastic deformation and the rotation of damping ring relative damping torsional spring occur for torsional spring, at this time the frictional force between damping ring and damping torsional spring
It has an effect, generates damping torque.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement all should belong to appended by the utility model
Scope of protection of the claims.
Claims (6)
1. a kind of rotary damper, which is characterized in that including damping ring, damping torsional spring, damper seat；The damping torsional spring is arranged
In damping ring, two ends for damping torsional spring are bent radially outward to form the first torque arm and the second torque arm；The damper seat
Offer the groove for being suitable for accommodating damping torsional spring, damper seat offers for abutting with the first torque arm, the second torque arm, and institute
The limiting slot that groove communicates is stated, damper seat offers the positioning round orifice suitable for the insertion of damping ring one end；The damping ring is worn
It crosses positioning round orifice and is clamped with damper seat.
2. rotary damper according to claim 1, which is characterized in that the cross section of the groove is circle.
3. rotary damper according to claim 1, which is characterized in that the cross section of the limiting slot is sector.
4. rotary damper according to claim 1, which is characterized in that the groove is evenly arranged with four along its outer peripheral surface
A limiting slot.
5. rotary damper according to claim 1, which is characterized in that the damping ring includes columned damping ring sheet
Body, locating cylinder；The axis of the locating cylinder is overlapped with the axis of damping ring body, and locating cylinder setting is damping
Ring body one end；The damping torsional spring interference is socketed on damping ring body；The locating cylinder passes through positioning round orifice
Part offers limited ring groove, and the limited ring groove is arranged with circlip, and the bottom surface of the circlip is connected to damper
Seat.
6. rotary damper according to claim 5, which is characterized in that the damping ring body offers in the axial direction
Connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821350570.3U CN209509881U (en) | 2018-08-21 | 2018-08-21 | Rotary damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821350570.3U CN209509881U (en) | 2018-08-21 | 2018-08-21 | Rotary damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209509881U true CN209509881U (en) | 2019-10-18 |
Family
ID=68187112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821350570.3U Active CN209509881U (en) | 2018-08-21 | 2018-08-21 | Rotary damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209509881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086579A (en) * | 2023-04-07 | 2023-05-09 | 四川省公路规划勘察设计研究院有限公司 | Portable pressure measurement system and pressure measurement method |
| WO2023231806A1 (en) * | 2022-05-28 | 2023-12-07 | 华为技术有限公司 | Driving apparatus and mechanical device |
-
2018
- 2018-08-21 CN CN201821350570.3U patent/CN209509881U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231806A1 (en) * | 2022-05-28 | 2023-12-07 | 华为技术有限公司 | Driving apparatus and mechanical device |
| CN116086579A (en) * | 2023-04-07 | 2023-05-09 | 四川省公路规划勘察设计研究院有限公司 | Portable pressure measurement system and pressure measurement method |
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