CN206190101U - Driving mechanism of electric tailgate of automobile - Google Patents
Driving mechanism of electric tailgate of automobile Download PDFInfo
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- CN206190101U CN206190101U CN201621262370.3U CN201621262370U CN206190101U CN 206190101 U CN206190101 U CN 206190101U CN 201621262370 U CN201621262370 U CN 201621262370U CN 206190101 U CN206190101 U CN 206190101U
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Abstract
The utility model provides a driving mechanism of electric tailgate of automobile, includes gear box, casing, motor, reduction gear, gear train, outer tube, cylinder liner, piston rod, silk braid, lead screw and position sleeve, the casing is the tube -shape and locates gear box one side. The outer tube locate gear box one side and with casing homonymy and parallel arrangement, on the outer tube can be located flexiblely to the cylinder liner, this cylinder liner included little cylinder body and cylinder body greatly, little cylinder body outer wall and form annular region greatly between the cylinder body inner wall, on the piston rod was located in the outer tube and the cover locates little cylinder body, this piston rod cavity formed inner chamber front end and has the piston, this piston is located and forms annular region between little cylinder body outer wall and the big cylinder body inner wall. In little cylinder body was located to the silk braid, in the outer tube was located to the lead screw, the one end of this lead screw was connected with the power take off of gear train end, and the other end stretches into little cylinder body interior and be connected the cooperation with the silk braid. Compared with the prior art, the utility model has the advantages of whole length weak point, compact structure, lightly to reach the noise little.
Description
Technical field
The utility model is related to a kind of Vidacare corp, more particularly to a kind of drive device for being applied to automobile tail gate.
Background technology
Automobile tail gate mainly has two kinds at present, and the first is manual tail-gate, and hand switch, this kind of knot are realized using gas spring
Structure mainly apply with low and middle-end car on；Second is electric tail gate, and the automatic lifting for realizing tail-gate, operation side are driven using motor
Just it is quick, while it is laborious to solve the problems, such as that most women passenger opens tail-gate because strength is small.
The drive device of electric tail gate is existing disclosed to have many kinds, such as middle promulgated by the State Council of Application No. 201310343833.3
Bright patent application publication《Electronic gas spring》(application publication number is CN103410906A), this application is driven by motor
Piston rod moves back and forth, so as to realize automatically controlling, this structure is applied to be existed in the keying of automobile tail gate, and length is larger,
The limited deficiency of distance of stretch out and draw back.
Also other class improved structure, application reference number is disclosed for 201010288083.0 Chinese invention patent application
《Automobile power back door driving mechanism》(application publication number is CN101967930A), this application includes motor, motor sleeve, screw mandrel
Sleeve, bull screw mandrel, many head nuts and spring, bull screw mandrel make many head nuts relative to bull screw mandrel with the driving of micromachine
Motion, while ut socket is moved relative to screw mandrel sleeve.Similar can be 201410206864.9 with application reference number
Chinese invention patent application is disclosed《Automobile tail gate Motorized lift device》(application publication number is CN105089408A).
The drive device of above-mentioned this kind of electric tail gate is mainly supported by steel spring, and driving force is produced by motor, is led to
Cross screw mandrel to realize stretching, because steel spring has the following disadvantages：First, steel spring stability is poor, and is easily broken off, and deposits
In potential safety hazard；Secondly, automobile tail gate weight is not of uniform size, it is necessary to be adapted to the drive device of different size, and steel spring force
Square can not implement regulation, and again, steel spring easily rubs generation noise in reciprocating motion with steel pipe walls；Finally, steel spring
The comparing that must be made is thick, overall more heavy, causes to carry two ends bearing capacity multiplication when tail-gate is closed, and two ends is fixed and is filled
Put intensity requirement raising.
Therefore, disclosing a kind of improved drive device in the prior art, see in Application No. 201510433203.4
State's invention patent application publication《The electronic Air spring support of automotive back door》(application publication number is CN105275301A), this application
By in gas spring structure and the motor-driven structure same cylinder of compact assembling, while steel spring is instead of with gas spring,
Solve a series of problems that steel spring band comes.But the technical scheme of this application there is also following deficiency：First, noise ratio compared with
Greatly, noise is on being rotatably assorted of motor itself and multiple-threaded screw and bull swivel nut；Second, overall structure still compares
Too fat to move, air pressure inside does not make full use of, it is impossible to accomplish tiny；3rd, overall length is still more long, using being relatively restricted；
4th, hollow screw structure requirement on machining accuracy is higher, and technique realizes there is certain difficulty.
Utility model content
Technical problem to be solved in the utility model is directed to the above-mentioned state of the art and provides a kind of overall length
Shorter automobile power back door driving mechanism.
Another technical problem to be solved in the utility model is directed to the above-mentioned state of the art and provides a kind of structure
Compact, light automobile power back door driving mechanism.
Another technical problem to be solved in the utility model is directed to the above-mentioned state of the art and provides a kind of noise
Small automobile power back door driving mechanism is put.
The utility model solve the technical scheme that is used of above-mentioned technical problem for：Automobile power back door driving mechanism, its
It is characterised by including
Gear-box；
Housing, is cylindrical in shape and located at aforesaid gears case side；
Motor, in foregoing housing and is connected with sensor；
Decelerator, simultaneously input is connected with the clutch end of aforementioned motor in foregoing housing；
Gear train, in aforesaid gears case, power intake is connected with foregoing decelerator；
Outer tube, located at aforesaid gears case side and with foregoing housing homonymy and be arranged in parallel；
Cylinder sleeve, telescopically on foregoing outer tube, the cylinder sleeve includes small cylinder body and big cylinder body, foregoing small outer wall of cylinder block
Annular region is formed between big inboard wall of cylinder block；
Piston rod, in foregoing outer tube and is sheathed on foregoing small cylinder body, the piston rod hollow formation inner chamber front end
With piston；The piston is located between foregoing small outer wall of cylinder block and big inboard wall of cylinder block and is formed in annular region；
Silk braid, in foregoing small cylinder body；
Screw mandrel, in foregoing outer tube, one end of the screw mandrel is connected with the clutch end of aforesaid gears group, the other end
Stretch into foregoing small cylinder body and be connected cooperation with foregoing silk braid；And
Positioning sleeve, in foregoing vat body and can limit piston and depart from big cylinder body.
Further, the first ball head connecting piece is provided with the outside of the gear-box, the outer end of the cylinder sleeve is provided with the second bulb
Connector.
Further, the piston is provided with a small oil sealing, and described positioning sleeve is provided with a big oil sealing.
Piston rod is preferably as follows fixed form with outer tube：The outer tube wall is provided with a hollow fixed cover, described work
Stopper rod is connected and fixed on the fixed cover, and described screw mandrel extends through the fixed cover.
Further to make to ensure that rectilinear movement is not rotated between outer tube and cylinder sleeve, the big outer wall of cylinder block has cylinder sleeve convex
Body, accordingly, the outer tube wall has the outer tube groove for being oriented to foregoing cylinder sleeve convex body and being coordinated.
Preferably, described housing is integrated part with gear-box.
Preferably, gear train includes
First gear, is connected by first rotating shaft in gear-box and with decelerator；
Second gear, is connected by the second rotating shaft in gear-box and with screw mandrel；And
3rd gear, by the 3rd rotating shaft in the gear-box and both sides respectively with foregoing first gear and second gear
Engagement.
Compared with prior art, the utility model has the advantage of：Motor and decelerator is parallel with screw mandrel drive part sets
Meter, entire length greatly reduces, in addition, using the fit structure of hollow piston rod and big cylinder body and small cylinder body, can make silk
Bar drives back and forth completely in small cylinder body, and the active area of piston is annular, can make full use of the pressure space of inside, will be whole
The comparing that body volume is made is small and light, meanwhile, by the inside and outside setting of both driving structure and supporting construction, can effectively reduce entirety
Length, expands application space；In addition, screw mandrel and silk braid are rotatably assorted in a space for relative closure, therefore produce
Noise is substantially reduced.The utility model processing technology is simple, and different torques can be produced to offset article up and down motion gravity, reduces electricity
Machine wattage, save energy；It can also effectively prevent cylinder sleeve from rotating, and reduce friction, extend cylinder service life.
Brief description of the drawings
Fig. 1 is surface structure schematic diagram when embodiment extends.
Fig. 2 is embodiment decomposed sectional view.
Fig. 3 is cylinder sleeve part mplifying structure schematic diagram when embodiment shortens.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1, Figure 2 and Figure 3, the automobile power back door driving mechanism in the present embodiment includes gear-box 2, housing
22nd, motor 1, decelerator 11, gear train 2, outer tube 4, cylinder sleeve 6, piston rod 7, silk braid 71, screw mandrel 5 and positioning sleeve 75.
Gear-box 2 is made up of body 20 and gear cover plate 21, and the outside of gear cover plate 21 is provided with the first ball head connecting piece 24, shell
Body 22 is cylindrical in shape and located at the side of gear-box 2, and the port of housing 22 is provided with cover plate 23, housing 22 and gear-box 2 one in the present embodiment
It is body formed, it is integrated part.
Motor 1 is in the housing 22 and is connected with sensor 12, and motor 1 can use direct current generator, and sensor 12 can be with
Two-way Hall sensor is rotated using magnet ring；Decelerator 11 is in housing 22 and input connects with the clutch end of motor 1
Connect.In gear-box 2, power intake is connected gear train 2 with decelerator 11.
Outer tube 4 located at the side of gear-box 2 and with the homonymy of housing 22 and be arranged in parallel, cylinder sleeve 6 is telescopically located at outer tube 4
On, the cylinder sleeve 6 includes small cylinder body 62 and big cylinder body 61, and annular region is formed between the outer wall of small cylinder body 62 and the inwall of big cylinder body 61；
The outer end of cylinder sleeve 6 is provided with the second ball head connecting piece 25.
Piston rod 7 is in outer tube 4 and is sheathed on small cylinder body 62, and the hollow formation inner chamber of piston rod 7 front end has lives
Plug 72；The piston 72 is located between the outer wall of small cylinder body 62 and the inwall of big cylinder body 61 and is formed in annular region, and piston 72 is provided with one
Small oil sealing 73.Silk braid 71 is located in small cylinder body 62,
In outer tube 4, one end of the screw mandrel 5 is connected screw mandrel 5 with the clutch end of gear train 2, and the other end stretches into small
In cylinder body 62 and cooperation is connected with silk braid 71, the preferred bull screw mandrel of the screw mandrel 5 in the present embodiment；Positioning sleeve 75 is located at big cylinder body 61
Interior and can limit piston 72 and depart from big cylinder body 61, positioning sleeve 75 is provided with a big oil sealing 74.
The fixed form of piston rod 7 is as follows：The inwall of outer tube 4 is provided with a hollow fixed cover 76, and piston rod 7 is connected and fixed on
On the fixed cover 76, screw mandrel 5 extends through the fixed cover 76.
To make to ensure that rectilinear movement is not rotated between outer tube 4 and cylinder sleeve 6, the outer wall of big cylinder body 61 has cylinder sleeve convex body 41, right
Ying Di, the inwall of outer tube 4 has the outer tube groove for being oriented to cylinder sleeve convex body 41 and being coordinated.
Gear train 2 in the present embodiment includes first gear 31, the gear 33 of second gear 32 and the 3rd, and first gear 31 is led to
First rotating shaft 36 is crossed in gear-box 2 and is connected with decelerator 11, second gear 32 is located at gear-box 2 by the second rotating shaft 37
It is interior and be connected with screw mandrel 5, the 3rd gear 33 by the 3rd rotating shaft 38 in gear-box 2 and both sides respectively with first gear 31 and
Second gear 32 is engaged, and bearing 34 and bearing 35 are respectively arranged at two ends with the rotating shaft 37 of first rotating shaft 36 and second.
Operation principle：When using, the first ball head connecting piece 24 and the second ball head connecting piece 25 respectively with automobile trunk in
Side and trunk door are connected, and by the drive gear set 2 of decelerator 11, gear train 2 drives screw mandrel 5 to move back and forth to motor 1, because of silk braid
71 are connected with small cylinder body 62, so silk braid 71 drives, cylinder sleeve 6 is overall to be moved back and forth, and is realized elongation and is shortened.Meanwhile, piston
Bar 7 moves back and forth in annular region, there is provided enough support forces.
The cylinder sleeve 6 of sealing can produce a unidirectional powerful thrust, and small cylinder body 62 is filled with the annular region of big cylinder body 61
Liquid nitrogen or compressed gas；Screw mandrel 5, silk braid 71 and motor 1 constitute an electric cylinder push rod, allow its motion that is in line；Sensor
12 are used for detecting the operation conditions of motor 1, and specifically, motor 1 rotates a circle Hall and sends 3 or 7 (1~12) pulses letters
Number, 2 Hall elements out 2 signals allow 2 pulse signals into a quarter phase difference (90 degree of phase differences), so as to calculate
Go out the Lap Time of digit pulse quantity and the rotation of motor 1 up or down, reflect operating performance of plant and run location.
Claims (7)
1. a kind of automobile power back door driving mechanism, it is characterised in that including
Gear-box；
Housing, is cylindrical in shape and located at aforesaid gears case side；
Motor, in foregoing housing and is connected with sensor；
Decelerator, simultaneously input is connected with the clutch end of aforementioned motor in foregoing housing；
Gear train, in aforesaid gears case, power intake is connected with foregoing decelerator；
Outer tube, located at aforesaid gears case side and with foregoing housing homonymy and be arranged in parallel；
Cylinder sleeve, telescopically on foregoing outer tube, the cylinder sleeve includes small cylinder body and big cylinder body, foregoing small outer wall of cylinder block with it is big
Annular region is formed between inboard wall of cylinder block；
Piston rod, in foregoing outer tube and is sheathed on foregoing small cylinder body, and the piston rod hollow formation inner chamber front end has
Piston；The piston is located between foregoing small outer wall of cylinder block and big inboard wall of cylinder block and is formed in annular region；
Silk braid, in foregoing small cylinder body；
Screw mandrel, in foregoing outer tube, one end of the screw mandrel is connected with the clutch end of aforesaid gears group, and the other end is stretched into
In foregoing small cylinder body and it is connected cooperation with foregoing silk braid；And
Positioning sleeve, in foregoing vat body and can limit piston and depart from big cylinder body.
2. automobile power back door driving mechanism according to claim 1, it is characterised in that be provided with the outside of the gear-box
First ball head connecting piece, the outer end of the cylinder sleeve is provided with the second ball head connecting piece.
3. automobile power back door driving mechanism according to claim 1, it is characterised in that the piston is provided with a small oil
Envelope, described positioning sleeve is provided with a big oil sealing.
4. automobile power back door driving mechanism according to claim 1, it is characterised in that the outer tube wall is provided with
Empty fixed cover, described piston rod is connected and fixed on the fixed cover, and described screw mandrel extends through the fixed cover.
5. automobile power back door driving mechanism according to claim 1, it is characterised in that the big outer wall of cylinder block has cylinder
Set convex body, accordingly, the outer tube wall has the outer tube groove for being oriented to foregoing cylinder sleeve convex body and being coordinated.
6. automobile power back door driving mechanism according to claim 1, it is characterised in that described housing is with gear-box
Integral piece.
7. automobile power back door driving mechanism according to claim 1, it is characterised in that described gear train includes
First gear, is connected by first rotating shaft in gear-box and with decelerator；
Second gear, is connected by the second rotating shaft in gear-box and with screw mandrel；And
3rd gear, by the 3rd rotating shaft, simultaneously both sides are nibbled with foregoing first gear and second gear respectively in gear-box
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621262370.3U CN206190101U (en) | 2016-11-23 | 2016-11-23 | Driving mechanism of electric tailgate of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621262370.3U CN206190101U (en) | 2016-11-23 | 2016-11-23 | Driving mechanism of electric tailgate of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190101U true CN206190101U (en) | 2017-05-24 |
Family
ID=58725424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621262370.3U Active CN206190101U (en) | 2016-11-23 | 2016-11-23 | Driving mechanism of electric tailgate of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190101U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795226A (en) * | 2017-11-30 | 2018-03-13 | 无锡典聚科技有限公司 | Automobile tail gate electric pushrod |
| CN107816286A (en) * | 2017-11-30 | 2018-03-20 | 无锡典聚科技有限公司 | For supporting the drive mechanism of automobile tail gate |
| CN108166881A (en) * | 2017-09-28 | 2018-06-15 | 王汉岳 | A kind of gas-electricity one intelligence push rod |
| KR102271288B1 (en) * | 2019-12-30 | 2021-06-30 | 동명대학교산학협력단 | Tailgate spindle drive with hollow gas spring |
-
2016
- 2016-11-23 CN CN201621262370.3U patent/CN206190101U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166881A (en) * | 2017-09-28 | 2018-06-15 | 王汉岳 | A kind of gas-electricity one intelligence push rod |
| CN107795226A (en) * | 2017-11-30 | 2018-03-13 | 无锡典聚科技有限公司 | Automobile tail gate electric pushrod |
| CN107816286A (en) * | 2017-11-30 | 2018-03-20 | 无锡典聚科技有限公司 | For supporting the drive mechanism of automobile tail gate |
| KR102271288B1 (en) * | 2019-12-30 | 2021-06-30 | 동명대학교산학협력단 | Tailgate spindle drive with hollow gas spring |
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