CN206972814U - It is a kind of can electric retractable gas spring - Google Patents
It is a kind of can electric retractable gas spring Download PDFInfo
- Publication number
- CN206972814U CN206972814U CN201720369883.2U CN201720369883U CN206972814U CN 206972814 U CN206972814 U CN 206972814U CN 201720369883 U CN201720369883 U CN 201720369883U CN 206972814 U CN206972814 U CN 206972814U
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- China
- Prior art keywords
- cylinder barrel
- piston rod
- planet carrier
- piston
- gas spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to it is a kind of can electric retractable gas spring, including cylinder barrel, piston and piston rod, drive nut, motor, planetary gears and one-way lock mechanism；Piston base and piston rod are located in cylinder barrel, and drive nut and piston rod thread coordinate；When making under gas pressure of the piston in cylinder barrel outside the axially extended cylinder barrel of piston rod, when needing to be shunk, motor driven planetary gears rotates, planetary gears drives one-way lock mechanism to rotate, one-way lock mechanism drives drive nut to rotate, so that piston rod axial rotation, completes piston rod and shrinks.Auto-extending when the utility model can be upheld, during contraction, retracted by rotor rotation driving gas spring bar；The structure of the gas spring of this electric retractable is simplified compared to the gas spring that can bounce back in the past, that is, reduces its production and maintenance cost, improves the performance of spring, extends the service life of spring.
Description
Technical field
The utility model belongs to mechanical field, more particularly to it is a kind of can electric retractable gas spring.
Background technology
Spring is needed to complete expected mechanical movement in modern mechanical product mostly, and gas spring is a kind of important machine
Tool part, it can play the important effects such as support, braking and height regulation.
Now widely used gas spring is mainly by the piston in cylinder barrel, cylinder barrel, piston rod and each guiding fixing seal member
Storage has the nitrogen or gas mixture of certain pressure in the compositions such as part, cylinder barrel.Piston rod is realized using cylinder interior gas pressure
Stretching exercise, the gas spring that stretches is retracted by external force.
There is disclosed electronic strut to be stretched all the time by installing mechanical spring, nature lower nut piston rod in pipe at present
Do well, then pass through motor and produce power, screw mandrel is passed to through reduction gearing, because of the meshing relation of screw mandrel and nut piston bar,
So that the forward and reverse of motor, the telescopic displacement of nut piston bar is converted into.The contractility of such a electronic strut is all little,
Want to reach big contractility, structure is very big, and the occasion of application is gradually eliminated.
A kind of another inventor Yang Jun, application publication number CN 106246789 A electronic gas spring, is driven by motor
Planetary reducer, there is decelerator output driving screw mandrel, leading screw drives nut piston bar, by the forward and backward of motor, completes
Spring stretches.This structure disclosure satisfy that flexible function, but its structure is complex, and slide unit is relatively more, sealing
Performance requirement is higher, and manufacture is more complicated.
The content of the invention
The utility model solve technical problem be：The purpose of this utility model be to invent it is a kind of can electric retractable gas
Spring, the performance that common gas spring is unable to electric retractable can be improved, in the architecture basics of the maximum gas spring of current usage amount
Upper arrangement motor, planetary gear, individual event lockable mechanism and the nut screw for increasing and turning round of slowing down, realization are upheld and rely on gas or liquid
Pressure, shrink and complete piston rod through planetary gears and one-way lock mechanism and nut screw by power caused by motor
Retraction.
In view of above-mentioned prior art, it is necessary to reasonably improved the structure of the maximum gas spring of existing usage amount.
The technical solution of the utility model is：It is a kind of can electric retractable gas spring, including cylinder barrel 2, piston 1 and piston rod
8；Drive nut 9, motor 6, planetary gears 4 and one-way lock mechanism；The base of piston 1 and piston rod 8 are located in cylinder barrel 2,
Drive nut 9 and the screw thread of piston rod 8 coordinate；When making the axially extended cylinder barrel 2 of piston rod 8 under gas pressure of the piston 1 in cylinder barrel 2
Outer, it is necessary to when being shunk, motor 6 drives planetary gears 4 to rotate, and planetary gears 4 drives one-way lock mechanism to turn
Dynamic, one-way lock mechanism drives drive nut 9 to rotate, so that the axial rotation of piston rod 8, completes piston rod 8 and shrink.
It is of the present utility model further technical scheme be：The cylinder barrel 2 closes the column of one end open, piston for one end
1 and piston rod 8 be located in the inner chamber of cylinder barrel 2, and piston rod 8 can axial rotation stretch out cylinder barrel 2 openend, the base of piston 1 and cylinder
Filled with gas, liquid or the gas-liquid mixture for determining pressure in chamber between 2 blind ends of cylinder.
It is of the present utility model further technical scheme be：The planetary gears 4 include planet carrier 44, sun gear 43,
Planetary gear 42, bearing pin 45 and gear ring 41；The outer ring of gear ring 41 is connected with the inwall of cylinder barrel 2, and planet carrier 44 passes through bearing pin 45 and planetary gear
42 are connected, and planetary gear is enclosed on bearing pin and rotated, and planetary gear 42 and sun gear 43 are intermeshed, the end of sun gear 43 and motor 6
Rotor tip is meshed, and bearing is provided between the outer wall of planet carrier 44 and the inwall of cylinder barrel 2.
It is of the present utility model further technical scheme be：The sun gear input of one end of close motor 6 of the sun gear 43
The mutually mating engagement of output end engaging tooth 621 of engaging tooth 431 and the upper rotor part 62 of motor 6 close to the end of sun gear 43 is held to transmit dynamic
Power.
It is of the present utility model further technical scheme be：The one-way lock mechanism includes planet carrier 44, steel ball 92 and driven
Dynamic nut 9；There are some outer shroud inside grooves 442 in planet carrier 44, be equipped with steel ball 92 in each groove, outer shroud inside groove 442 is along same circle
The week distribution medial surface of planet carrier 44, the groove depth of outer shroud inside groove 442 is monotonically changed along planet carrier circumferencial direction, and groove depth is maximum
Value is more than steel ball external diameter, and minimum value is less than steel ball external diameter；When steel ball 92 falls into groove depth maximum, planet carrier 44 is rotated and driven
Nut 9 does not turn；When steel ball 92 falls into groove depth minimum value, steel ball 92 moves and blocks planet carrier 44 and drive nut 9 so that
Planet carrier 44 and drive nut 9 rotate simultaneously.
It is of the present utility model further technical scheme be：The motor 6 includes stator 61 and rotor 62；The outer wall of stator 61 with
The inwall of cylinder barrel 2 is connected, and bearing is provided between stator 61 and rotor 62, and rotor 62 does not contact with piston rod 8.
Invention effect
It is of the present utility model to have technical effect that：
(1) the auto-extending when gas spring of this electric retractable can be upheld, during contraction, by rotor rotation driving gas
Spring lever is retracted.
(2) structure of the gas spring of this electric retractable is simplified compared to the gas spring that can bounce back in the past, that is, reduces its life
Production and maintenance cost, the performance of spring is improved, extend the service life of spring.
Brief description of the drawings
Fig. 1 is the utility model structure diagram
Fig. 2 is the utility model electric machine structure schematic diagram
Fig. 3 is motor and planetary gears mesh schematic representation
Fig. 4 is planetary gears schematic diagram
Fig. 5 is one-way lock mechanism schematic diagram
Fig. 6 is one-way lock mechanism and drive nut schematic diagram
Fig. 7 is the utility model embodiment structural representation
Description of reference numerals：1-piston；2-cylinder barrel；21-cylinder barrel end stud；31-bearing；32-bearing；33-axle
Hold；4-planetary gears；41-gear ring；42-planetary gear；421-planetary gear centre bore；43-sun gear；431-too
Sun wheel input engaging tooth；44-planet carrier；441-hole；442-outer shroud inside groove；45-bearing pin；2501-ring washer；52-shelves
Circle；6-motor；61-stator；62-rotor；621-output end engaging tooth；
7-end cylinder barrel；71-end seal；72-terminal guide ring；8-piston rod；81-rod end screw thread；
82-piston rod thread；9-drive nut；The outer end slot of 91-nut；92-steel ball；10-connection end；
101-internal thread；103-spherical groove；104-clamp；
Embodiment
1st, planetary gears is delivered power to referring to Fig. 1, motor output end, the row with the increasing torsion effect that slows down
Star gear mechanism input is sun gear, and output end is planet carrier.Power is through the incoming dress with one-directional rotation function of planet carrier
In putting, single direction turning mechanism can only single direction rotation passing power, its reverse rotation is the not passing power that dallies.Filled in one-directional rotation
Drive nut rotation is driven when putting rotation passing power, drive nut, which drives, has threaded piston rod translation, completes electronic receipts
Contracting function.Here, the outer shroud as unidirectional locking arrangement, drive nut are used as unidirectional locking arrangement to planet carrier again simultaneously again simultaneously
Inner ring.
2nd, referring to Fig. 2, the motor of electric retractable is mounted in one end end cylinder barrel 7 at air spring piston bar stretching, fixed
Son 61 is fixed together with end cylinder barrel, the central hollow of rotor 62, and hollow position is passing through piston rod.Power passes through rotor
62 ends are transferred to the sun gear 43 in planetary gears 4, and output end engaging tooth 621 and the sun gear of rotor 62 input
End engaging tooth 431 is intermeshed, and transmits power.
3rd, referring to Fig. 3, exported by planetary output end planet carrier 44, the input of planetary gears 4 is the sun
Wheel 43, gear ring 41 is fixed on end cylinder barrel 7, and output end is planet carrier 44.Planet carrier is fixedly connected with bearing pin 45, and bearing pin 45 is logical
The center bore ends of planetary gear 42 are crossed to be blocked with jump ring.
4th, referring to Fig. 4, one-way lock mechanism can only rotate in a one way-direction or power can only transmit in a direction.It is dynamic
Power is by planet carrier 44, while the outer shroud rotate counterclockwise as one-way lock mechanism again.
5th, moved referring to Fig. 5, dragging ball small end into outer shroud, power is delivered to drive nut by steel ball and revolved counterclockwise
Turn.Inner ring of the drive nut 9 as one-way lock mechanism.The rotate counterclockwise of drive nut 9, the inverse time in the original location of drive nut 9
Pin is rotated, and the translation of driving piston rod 8 is retracted.Complete piston rod electric retractable.
5th, referring to Fig. 1-Fig. 7, gas spring is mainly by connection end 10, cylinder barrel 2, end cylinder barrel 7, piston rod 8, motor 6, OK
Star gear mechanism 4, drive nut 9, bearing, jump ring, back-up ring and seal are formed.
Mechanism to achieve the above object, the technological means taken in mechanism be the one end of jointing 10 respectively and cylinder barrel
End stud 21 and rod end screw thread 81 are connected, and jointing 10 is connected with the fixing end and opening end for needing opener respectively, then
Blocked by spring clip；As automobile rear end door column on and automobile tail gate frame on.Cylinder barrel 2 welds with cylinder barrel end stud 21
Integrally, cylinder barrel 2 and end cylinder barrel 7 are integrally welded；The one end of piston rod 8 is connected with piston 1, and piston rod 8 is at 1, piston
There is piston rod thread 82, the length of piston rod thread 82 is greater than the stroke of piston rod 8, consistent with stroke；Motor 6 is by stator 61
Formed with rotor 62, there is coil in stator 61, together with the outer ring of stator 61 fastens with end cylinder barrel 7, on the outside of the both ends of stator 61 respectively
It is in close contact with bearing 32, the outer ring of bearing 33；There is coil in rotor 62, it is hollow in rotor 62, to pass through piston rod 8, rotor
62 outer rings both ends are in close contact with bearing 32, the inner ring of bearing 33 respectively, the sun gear 43 in planetary gears 44 of rotor 62
There is output end engaging tooth 621 at end, and output end engaging tooth 621 engages with the end sun gear input engaging tooth 431 of sun gear 43；OK
Star gear mechanism 4 is made up of gear ring 41, planetary gear 42, sun gear 43 and planet carrier 44, bearing pin 45；Gear ring 41 is cylindrical with cylinder barrel 2
Inner circle border is in close contact, and the both ends of gear ring 41 coordinate with the inner circle step of cylinder barrel 2 and back-up ring 51 respectively；There is center at the middle part of planetary gear 42
Hole 421, the one end of bearing pin 45 and the secure fit of hole 441 of planet carrier 44, the centre bore 421 that the other end of bearing pin 45 passes through planetary gear 42
Blocked afterwards by jump ring, the output end engaging tooth 621 of the end sun gear input engaging tooth 431 of sun gear 43 and rotor 62 is nibbled
Close；There are hole 441, hole 441 and one end secure fit of bearing pin 45 on planet carrier 44, planet carrier 44 is again as one-way lock mechanism
Outer shroud, inside there are outer shroud inside groove 442, the medial surface of circle distribution planet carrier 44 independent of one another of outer shroud inside groove 442, outer shroud inside groove 442
Steel ball 92 is inside equipped with, the depth of the one end of outer shroud inside groove 442 is less than the diameter of steel ball 92, the depth of the other end of outer shroud inside groove 442
More than the diameter of steel ball 92, another contact surface of steel ball 92 is end slot 91 outside the nut in the outside of drive nut 9, and drive nut 9 is
Internal thread, the internal thread of drive nut 9 coordinate with piston rod thread 82.Planet carrier 44, steel ball 92 and drive nut 9 are equivalent to one
Single clutch.When the gas spring of this electric retractable is being opened, at this moment the no power of motor 6, motor 6 do not work, and rely on
Gas pressure in cylinder barrel 2 promotes piston 1 to move, and the movement of piston 1 can drive piston rod 8 to translate, and piston rod translation can drive
Dynamic nut 9 rotates, and drive nut 9, which rotates, can make steel ball 92 be moved to the diameter one that the depth of outer shroud inside groove 442 is more than steel ball 92
End, now just interrupted herein from the power that piston movement is transmitted, drive nut 9 is unloaded to be rotated；When needing to shrink, motor 6
It is powered, rotor driven 62 rotates, and output end engaging tooth 621 alternately engages with sun gear input engaging tooth 431, such rotor 61
Driving sun gear 43 rotates, and because gear ring 41 is fixed, the output end of planetary gears 4 is exactly planet carrier 44, planet carrier
44 outer shrouds as one-way lock mechanism again, the steel ball 92 in outer shroud inside groove 442 are moved to the depth of outer shroud inside groove 442 and are less than steel ball
92 diameter end, at this moment steel ball 92 planet carrier 44 and end slot outside nut 91 are blocked, drive nut 9 is rotated, and drive nut 9 is revolved
Turn driving piston rod 8 to translate, complete piston rod 8 and retract.
Claims (6)
1. it is a kind of can electric retractable gas spring, including cylinder barrel (2), piston (1) and piston rod (8)；Characterized in that, also include
Drive nut (9), motor (6), planetary gears (4) and one-way lock mechanism；Piston (1) base and piston rod (8) are located at
In cylinder barrel (2), drive nut (9) and piston rod (8) screw thread coordinate；When making work under gas pressure of the piston (1) in cylinder barrel (2)
For stopper rod (8) axially extended cylinder barrel (2) outside, it is necessary to when being shunk, motor (6) drives planetary gears (4) rotation, planet tooth
Taking turns mechanism (4) drives one-way lock mechanism to rotate, and one-way lock mechanism drives drive nut (9) to rotate, so that piston rod
(8) axial rotation, complete piston rod (8) and shrink.
2. it is as claimed in claim 1 it is a kind of can electric retractable gas spring, it is characterised in that the cylinder barrel (2) is an end seal
The column of one end open is closed, piston (1) and piston rod (8) are located in cylinder barrel (2) inner chamber, and piston rod (8) can axially turn
Move and stretch out cylinder barrel (2) openend, the interior gas filled with determination pressure of the chamber between piston (1) base and cylinder barrel (2) blind end,
Liquid or gas-liquid mixture.
3. it is as claimed in claim 1 it is a kind of can electric retractable gas spring, it is characterised in that the planetary gears (4)
Including planet carrier (44), sun gear (43), planetary gear (42), bearing pin (45) and gear ring (41)；Gear ring (41) outer ring and cylinder barrel (2)
Inwall is connected, and planet carrier (44) is connected by bearing pin (45) with planetary gear (42), and planetary gear is enclosed on bearing pin and rotated, planetary gear
(42) it is meshed with sun gear (43) intermeshing, sun gear (43) end and motor (6) rotor tip, planet carrier (44) outer wall
Bearing is provided between cylinder barrel (2) inwall.
4. it is as claimed in claim 3 it is a kind of can electric retractable gas spring, it is characterised in that the sun gear (43) it is close
Output of the sun gear input engaging tooth (431) and motor (6) upper rotor part (62) of motor (6) one end close to sun gear (43) end
Hold engaging tooth (621) mutually mating engagement passing power.
5. it is as claimed in claim 1 it is a kind of can electric retractable gas spring, it is characterised in that the one-way lock mechanism includes
Planet carrier (44), steel ball (92) and drive nut (9)；There are some outer shroud inside grooves (442) in planet carrier (44), be all provided with each groove
There is a steel ball (92), outer shroud inside groove (442) is along same circle distribution planet carrier (44) medial surface, outer shroud inside groove (442) groove
It is deep to be monotonically changed along planet carrier circumferencial direction, and groove depth maximum is more than steel ball external diameter, minimum value is less than steel ball external diameter；Work as steel ball
(92) when falling into groove depth maximum, planet carrier (44) rotates and drive nut (9) does not turn；When steel ball (92) falls into groove depth minimum value
When, steel ball (92) is mobile and blocks planet carrier (44) and drive nut (9) so that planet carrier (44) and drive nut (9) are simultaneously
Rotate.
6. it is as claimed in claim 1 it is a kind of can electric retractable gas spring, it is characterised in that the motor (6) includes stator
And rotor (62) (61)；Stator (61) outer wall is connected with cylinder barrel (2) inwall, and bearing is provided between stator (61) and rotor (62),
Rotor (62) does not contact with piston rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720369883.2U CN206972814U (en) | 2017-04-10 | 2017-04-10 | It is a kind of can electric retractable gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720369883.2U CN206972814U (en) | 2017-04-10 | 2017-04-10 | It is a kind of can electric retractable gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972814U true CN206972814U (en) | 2018-02-06 |
Family
ID=61415390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720369883.2U Expired - Fee Related CN206972814U (en) | 2017-04-10 | 2017-04-10 | It is a kind of can electric retractable gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963614A (en) * | 2020-08-24 | 2020-11-20 | 南京丹枫机械科技有限公司 | Novel viscous damper |
-
2017
- 2017-04-10 CN CN201720369883.2U patent/CN206972814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963614A (en) * | 2020-08-24 | 2020-11-20 | 南京丹枫机械科技有限公司 | Novel viscous damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20190410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |