CN109610967A - Electric drive air cylinder device - Google Patents
Electric drive air cylinder device Download PDFInfo
- Publication number
- CN109610967A CN109610967A CN201910096103.5A CN201910096103A CN109610967A CN 109610967 A CN109610967 A CN 109610967A CN 201910096103 A CN201910096103 A CN 201910096103A CN 109610967 A CN109610967 A CN 109610967A
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- CN
- China
- Prior art keywords
- cylinder
- sleeve
- aforementioned
- piston
- electric drive
- Prior art date
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 30
- 238000005299 abrasion Methods 0.000 abstract description 5
- 244000309464 bull Species 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- 208000031968 Cadaver Diseases 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 240000001085 Trapa natans Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/512—Application of doors, windows, wings or fittings thereof for vehicles for recreational vehicles
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
- E05Y2900/548—Trunk lids
Abstract
A kind of electric drive air cylinder device, it include the first cylinder sleeve and the second cylinder sleeve including outer tube, cylinder barrel, piston, electric driving mechanism and screw rod outer tube, first cylinder sleeve above-mentioned is located among the second cylinder sleeve, forms annular region between the first outer wall of cylinder jachet and the second inboard wall of cylinder liner above-mentioned；Cylinder barrel front end is set in aforementioned toroidal region and relatively aforementioned outer tube can move back and forth；Piston is set to the front end of aforementioned first cylinder sleeve and is fitted close with inner wall of cylinder；The inner wall of cylinder alongst offers strip groove, is formed with vent cap between the strip groove and piston outer wall and communicates piston front and back end gas chamber.Strip groove can substitute piston hole, it is ensured that the integrality of piston reduces its abrasion, is conducive to permanently effective work, feed screw nut and piston are combined together, compact-sized.
Description
Technical field
The present invention relates to a kind of retractable Vidacare corps, can be applied to the device of the needs such as vehicle tail door overturning
On.
Background technique
There are mainly two types of automobile tail gate is current, the first is manual tail-gate, realizes manual switch, this kind of knot using gas spring
Structure mainly apply on low and middle-end vehicle；Second is electric tail gate, and the automatic lifting of tail-gate, operation side are realized using motor driven
Just quick, at the same solve the problems, such as most women passenger due to strength is small and it is laborious to open tail-gate.
There are many kinds of disclosed in the driving device of electric tail gate is existing, such as application No. is 201010288083.0 middle promulgateds by the State Council
Bright patent application publication " automobile power back door driving mechanism " (application publication number CN101967930A), this application include electricity
Mechanical, electrical machine sleeve, screw rod sleeve, bull screw rod, bull nut and spring, bull screw rod make bull spiral shell with the driving of micromotor
Parent phase moves bull screw rod, while ut socket is moved relative to screw rod sleeve.Similar can be with application reference number
201410206864.9 Chinese invention patent application disclose " automobile tail gate Motorized lift device " (application publication number be
CN105089408A)。
Existing structure exists following insufficient: firstly, structure is not compact enough, it is complex, it can further simplify；Its
Secondary, aperture realizes that two sides gas chamber communicates on piston, larger to the stability influence of piston entirety；Piston hole bore is smaller, easily
It is stuck that gas spring is directly resulted in after block, blocking；Piston sectional area itself is smaller, also to punch above, difficulty of processing compared with
Greatly；Again since the aperture bore on piston has determined that the movement speed of piston determines that, until beginning that change will not be generated to whole
Change, so that tail-gate stress in telescopic process is made not change, and this spline structure in tail-gate turn-off transient or is opened moment
Impact force is larger, is unfavorable for permanently effective use；And tail-gate close when clip to finger if, be easy to cause than more serious
Injury.
Summary of the invention
The technical problem to be solved by the present invention is to a kind of piston is provided for the above-mentioned state of the art without aperture
Electric drive air cylinder device.
Another technical problem to be solved by this invention is to provide piston traveling speed for the above-mentioned state of the art
The electric drive air cylinder device that can change.
The technical scheme of the invention to solve the technical problem is: a kind of electric drive air cylinder device, feature
Be include
Outer tube, including the first cylinder sleeve and the second cylinder sleeve, the first cylinder sleeve above-mentioned are located among the second cylinder sleeve, and above-mentioned first
Annular region is formed between outer wall of cylinder jachet and the second inboard wall of cylinder liner；
Cylinder barrel, front end is set in aforementioned toroidal region and relatively aforementioned outer tube can move back and forth；
Piston, set on aforementioned first cylinder sleeve front end and with inner wall of cylinder be fitted close, it is hollow and have internal screw thread；
Electric driving mechanism is set in aforementioned cylinder barrel；And
Screw rod, one end are connect with the power output end of aforementioned electric driving mechanism, the internal screw thread of the other end and aforementioned piston
It is protruded into aforementioned first cylinder sleeve with merging；
The inner wall of cylinder alongst offers strip groove, and ventilation is formed between the strip groove and piston outer wall
Duct and communicate piston front and back end gas chamber.
The area of section of the strip groove varies along its length arrangement.Such design can bring the resistance of variation
Buddhist nun purposefully adjusts whole service speed, to meet specific occasion requirement.It specifically can be using one of following:
The first, the area of section of the strip groove gradually reduces arrangement from middle part to both ends.Applied to automobile tail gate
On, so that the flow between gas chamber is reduced, resistance when outer tube moves to end with respect to cylinder barrel (i.e. enabling moment or closing the door moment)
Power increases, and is conducive to the opening and closing speed for slowing down tail-gate, reduces the impact to vehicle, can also reduce the risk crushed.
Second, the area of section of the strip groove gradually reduces arrangement from one end to the other end.It may be implemented to damp
It is sequentially increased or is sequentially reduced.
Preferably, the outer tube includes outer cylinder, inner cylinder and connector, inner cylinder above-mentioned is set to the interior simultaneously end of outer cylinder and sets
Connector in outer cylinder side connects, and the inner cavity of aforementioned outer cylinder forms the second cylinder sleeve, and aforementioned interior tube inner chamber forms the first cylinder sleeve.
The cylinder barrel outer wall is equipped with sleeve, which alongst forms the convex ribs of protrusion, accordingly,
The inner wall of the outer tube has the guide groove with the guiding cooperation of aforementioned convex ribs.Convex ribs and guide groove cooperation ensure cylinder barrel and outer tube it
Between can only move axially, will not shift.
The first oil conservator of the first oil sealing and close first oil sealing is equipped in the cylinder barrel close to electric driving mechanism, it is described
Screw rod be disposed through the first oil sealing and the first oil conservator above-mentioned.In the case where first oil sealing oil starvation, when starting, the first oil
Envelope generates larger frictional force, and abrasion is more severe, and the first oil conservator can at every moment lubricate the first oil sealing in time, subtract
Few friction, to reduce abrasion.
Further, positioning sleeve and atopping sleeve are equipped in the cylinder barrel, aforementioned atopping sleeve is arranged in positioning sleeve side and interior sets
There is the bearing for support screw rotation, and first oil sealing is then set to the other side of positioning sleeve.
Further, second oil conservator of the front end of the cylinder barrel equipped with the second oil sealing and close second oil sealing, aforementioned second
Oil sealing and the second oil conservator are sheathed on the first cylinder sleeve periphery and can move back and forth.
Further, the second oil sealing front end is located in the cylinder barrel and is equipped with guide sleeve, the guide sleeve is with respect to the first cylinder sleeve energy
Move back and forth.
Compared with the prior art, the advantages of the present invention are as follows: motor-driven mechanism driving screw rod moves back and forth, and matches with screw rod
The piston of set just moves back and forth, and the entire outer tube of piston driving is realized elongation with respect to cylinder barrel or retracted, to realize automobile tail gate
Opening and closing.Strip groove can substitute piston hole, it is ensured that the integrality of piston reduces its abrasion, is not easy to block up in strip groove operational process
Firmly, be conducive to permanently effective work；Strip groove can easily realize that production molding is more convenient as long as through mold kerve；It will
Feed screw nut is combined together with piston, compact-sized.
Detailed description of the invention
Fig. 1 is example structure schematic diagram.
Fig. 2 is embodiment exploded view.
Fig. 3 is embodiment cross-sectional view.
Fig. 4 is cylinder barrel three-dimensional cutaway view.
Fig. 5 is the enlarged diagram of strip groove.
Fig. 6 is that sleeve and outer tube cooperate enlarged cross-sectional view.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1, Figure 2 and Figure 3, the electric drive air cylinder device in the present embodiment includes outer tube 10, cylinder barrel 3, sleeve
2, piston 7, electric driving mechanism 5 and screw rod 4.
Outer tube 10 includes the first cylinder sleeve 11 and the second cylinder sleeve 1, and the first cylinder sleeve 11 is located among the second cylinder sleeve 1, the first cylinder sleeve
Annular region is formed between 1 inner wall of 11 outer walls and the second cylinder sleeve；Specifically, the outer tube 10 in the present embodiment includes outer cylinder, inner cylinder
And connector 12, inner cylinder is set in outer cylinder and end is connect with the connector 12 for being set to outer cylinder side, the inner cavity of outer cylinder formation the
Two cylinder sleeves 1, interior tube inner chamber form the first cylinder sleeve 11.
3 front end of cylinder barrel is set in annular region and opposite outer tube 10 can move back and forth；Before piston 7 is set to the first cylinder sleeve 11
Hold simultaneously with 3 inner wall of cylinder barrel be fitted close, it is hollow and have internal screw thread；Electric driving mechanism 5 is set in cylinder barrel 3, energy positive and negative rotation, electricity
Dynamic driving mechanism may include motor and retarder.4 one end of screw rod is connect with the power output end of electric driving mechanism 5, another
The screw-internal thread fit of end and piston 7 simultaneously protrudes into the first cylinder sleeve 11.
In conjunction with shown in Fig. 4 and Fig. 5,3 inner wall of cylinder barrel in the present embodiment alongst offers strip groove 31, this
Vent cap is formed between shape slot 31 and 7 outer wall of piston and communicates 7 front and back end gas chamber of piston.The area of section of strip groove 31
Vary along its length arrangement.The area of section of strip groove 31 gradually reduces arrangement from middle part to both ends.
As shown in connection with fig. 6, sleeve 2 is set to 3 outer wall of cylinder barrel, and 2 outer end of sleeve is equipped with bulb 22, and 2 outer wall of sleeve is along length
Degree direction forms the convex ribs 21 of protrusion, and accordingly, the inner wall of outer tube 10 has the guide groove 13 with the guiding cooperation of convex ribs 21.It is convex
Muscle 21 and the cooperation of guide groove 13 ensure to move axially between cylinder barrel 3 and outer tube 10, will not shift.
The first oil conservator 63 of the first oil sealing 62 and close first oil sealing 62 is equipped in cylinder barrel 3 close to electric driving mechanism 5,
Screw rod 4 is disposed through the first oil sealing 62 and the first oil conservator 63.Positioning sleeve 61 and atopping sleeve 65, atopping sleeve are equipped in cylinder barrel 3
65 be arranged in 61 side of positioning sleeve and it is interior by circlip 641 be equipped be used to support screw rod 4 rotation bearing 64, the first oil sealing 62 is then
Set on the other side of positioning sleeve 61.The front end of cylinder barrel 3 is equipped with the second oil sealing 67 and the second oil conservator 66 close to the second oil sealing 67,
Second oil sealing 67 and the second oil conservator 66 are sheathed on 11 periphery of the first cylinder sleeve and can move back and forth.It is located at the second oil sealing in cylinder barrel 3
67 front ends are equipped with guide sleeve 68, which can move back and forth with respect to the first cylinder sleeve 11.
In the case where first oil sealing oil starvation, when starting, the first oil sealing generates larger frictional force, wear it is more severe, first
Oil conservator can at every moment lubricate the first oil sealing in time, friction be reduced, to reduce abrasion.Second oil conservator is to
The effect of two oil sealings is worn also for reduction.
Working principle: motor-driven mechanism 5 drives screw rod 4 to move back and forth, and piston 7 matched with screw rod 4 just moves back and forth,
Piston 7 drives the opposite cylinder barrel 3 of entire outer tube 10 to realize elongation or retract, to realize the opening and closing of automobile tail gate.Here bar shaped
The area of section of slot 31 gradually reduces arrangement from middle part to both ends, when so that outer tube 10 moves to end with respect to cylinder barrel 3, gas chamber
Between flow reduce, resistance increases, and is conducive to the opening and closing speed for slowing down tail-gate, reduces the impact to vehicle, can also reduce
The risk crushed.The area of section of variation can produce the damping of variation, this certain strip groove 31 can be with more specific need
The adjustment of sectional area size is carried out, to control the speed of service of each period in motion process, to meet actual requirement.
Claims (10)
1. a kind of electric drive air cylinder device, it is characterised in that including
Outer tube (10), including the first cylinder sleeve (11) and the second cylinder sleeve (1), the first cylinder sleeve (11) above-mentioned are located at the second cylinder sleeve (1)
Centre forms annular region between the first cylinder sleeve (11) outer wall above-mentioned and the second cylinder sleeve (1) inner wall；
Cylinder barrel (3), front end is set in aforementioned toroidal region and relatively aforementioned outer tube (10) can move back and forth；
Piston (7), be set to aforementioned first cylinder sleeve (11) front end and with cylinder barrel (3) inner wall be fitted close, it is hollow and have interior spiral shell
Line；
Electric driving mechanism (5) is set in aforementioned cylinder barrel (3)；And
Screw rod (4), one end are connect with the power output end of aforementioned electric driving mechanism (5), and the other end is interior with aforementioned piston (7)
It is threadedly engaged and protrudes into aforementioned first cylinder sleeve (11)；
Cylinder barrel (3) inner wall alongst offers strip groove (31), between the strip groove (31) and piston (7) outer wall
It is formed with vent cap and communicates piston (7) front and back end gas chamber.
2. electric drive air cylinder device according to claim 1, it is characterised in that the area of section of the strip groove (31)
Vary along its length arrangement.
3. electric drive air cylinder device according to claim 2, it is characterised in that the section face of the strip groove (31)
Product gradually reduces arrangement from middle part to both ends.
4. electric drive air cylinder device according to claim 2, it is characterised in that the section face of the strip groove (31)
Product gradually reduces arrangement from one end to the other end.
5. electric drive air cylinder device according to claim 1, it is characterised in that the outer tube (10) includes outer cylinder, inner cylinder
And connector (12), inner cylinder above-mentioned is set in outer cylinder and end is connect with the connector (12) for being set to outer cylinder side, aforementioned outer
The inner cavity of cylinder forms the second cylinder sleeve (1), and aforementioned interior tube inner chamber forms the first cylinder sleeve (11).
6. electric drive air cylinder device according to claim 1, it is characterised in that cylinder barrel (3) outer wall is equipped with sleeve
(2), which alongst forms the convex ribs (21) of protrusion, and accordingly, the inner wall of the outer tube (10) has
There is the guide groove (13) with the cooperation of aforementioned convex ribs (21) guiding.
7. electric drive air cylinder device according to claim 1, it is characterised in that close to electric drive in the cylinder barrel (3)
Mechanism (5) is equipped with the first oil sealing (62) and the first oil conservator (63) close to the first oil sealing (62), and the screw rod (4), which runs through, to be set
It is placed in the first oil sealing (62) above-mentioned and the first oil conservator (63).
8. electric drive air cylinder device according to claim 7, it is characterised in that be equipped with positioning sleeve in the cylinder barrel (3)
(61) and atopping sleeve (65), aforementioned atopping sleeve (65) be arranged in positioning sleeve (61) side and in be equipped with and be used to support screw rod (4) and turn
Dynamic bearing (64), and first oil sealing (62) is then set to the other side of positioning sleeve (61).
9. electric drive air cylinder device according to claim 1, it is characterised in that the front end of the cylinder barrel (3) is equipped with second
Oil sealing (67) and second oil conservator (66) of close second oil sealing (67), aforementioned second oil sealing (67) and the second oil conservator (66) set
Set on the first cylinder sleeve (11) periphery and can move back and forth.
10. electric drive air cylinder device according to claim 9, it is characterised in that be located at second in the cylinder barrel (3)
Oil sealing (67) front end is equipped with guide sleeve (68), which can move back and forth with respect to the first cylinder sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910096103.5A CN109610967A (en) | 2019-01-31 | 2019-01-31 | Electric drive air cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910096103.5A CN109610967A (en) | 2019-01-31 | 2019-01-31 | Electric drive air cylinder device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109610967A true CN109610967A (en) | 2019-04-12 |
Family
ID=66019312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910096103.5A Pending CN109610967A (en) | 2019-01-31 | 2019-01-31 | Electric drive air cylinder device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109610967A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202790283U (en) * | 2012-07-23 | 2013-03-13 | 宁波力品格工业机械有限公司 | Damping slot broaching air spring |
| CN103016144A (en) * | 2011-09-26 | 2013-04-03 | 天津蹊径动力技术有限公司 | Piston intake two-stroke linear generating system |
| JP2016098998A (en) * | 2014-11-26 | 2016-05-30 | 特許機器株式会社 | Sealing mechanism for oil damper |
| CN206091712U (en) * | 2016-09-30 | 2017-04-12 | 征博科技（深圳）有限公司 | Electric drive air spring |
| CN107143241A (en) * | 2016-05-20 | 2017-09-08 | 潘微杰 | Intelligent electric drive cylinder device |
| CN108612704A (en) * | 2018-05-15 | 2018-10-02 | 江苏海川卓越密封材料有限公司 | A kind of piston rod sealing structure |
| CN209799702U (en) * | 2019-01-31 | 2019-12-17 | 宁波拓尔精工机械有限公司 | Electric driving cylinder device |
-
2019
- 2019-01-31 CN CN201910096103.5A patent/CN109610967A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016144A (en) * | 2011-09-26 | 2013-04-03 | 天津蹊径动力技术有限公司 | Piston intake two-stroke linear generating system |
| CN202790283U (en) * | 2012-07-23 | 2013-03-13 | 宁波力品格工业机械有限公司 | Damping slot broaching air spring |
| JP2016098998A (en) * | 2014-11-26 | 2016-05-30 | 特許機器株式会社 | Sealing mechanism for oil damper |
| CN107143241A (en) * | 2016-05-20 | 2017-09-08 | 潘微杰 | Intelligent electric drive cylinder device |
| CN206091712U (en) * | 2016-09-30 | 2017-04-12 | 征博科技（深圳）有限公司 | Electric drive air spring |
| CN108612704A (en) * | 2018-05-15 | 2018-10-02 | 江苏海川卓越密封材料有限公司 | A kind of piston rod sealing structure |
| CN209799702U (en) * | 2019-01-31 | 2019-12-17 | 宁波拓尔精工机械有限公司 | Electric driving cylinder device |
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