CN208057835U - A kind of small Tooth Number Difference Planetary Transmission structure on automobile power back door - Google Patents
A kind of small Tooth Number Difference Planetary Transmission structure on automobile power back door Download PDFInfo
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- CN208057835U CN208057835U CN201820128111.4U CN201820128111U CN208057835U CN 208057835 U CN208057835 U CN 208057835U CN 201820128111 U CN201820128111 U CN 201820128111U CN 208057835 U CN208057835 U CN 208057835U
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- gear
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- planetary
- rack
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Abstract
The utility model discloses the small Tooth Number Difference Planetary Transmission structures on a kind of automobile power back door, including straight-tooth running part, few teeth difference type Gear Planet Transmission part and rack-and-pinion output par, c, the band eccentric wheel spur gear, planetary gear cover board, planet carrier, bearing, planetary gear and locking output gear are arranged concentrically, centre passes through a piece central shaft of setting and is fixed on deceleration box by central shaft, motor gear is engaged with second level transmission gear, locking output rack and the pinion gear engaged transmission being latched on output gear.The utility model adds a kind of less teeth difference transmission structure applied in large-scale heavy duty machine construction using straight-tooth（The utility model has done simple optimization design due to being micro machine transmission）, it is low to efficiently solve common upper suction lock actuator structure driven efficiency（The efficiency of each link of the utility model structure reaches 98% ~ 99%）, the more demanding and easily stuck problem of the strength of gear teeth.
Description
Technical field
The utility model is related to a kind of gear transmission structures, and in particular to the fewer differential teeth planetary on a kind of automobile power back door
Drive mechanism.
Background technology
Height before automobile power back door mainly in import deluxe carmodel mixes use, in recent years with domestic automobile pin
The surge of amount and automotive circuit diagram and intelligentized development are installed electric tail gate additional and are generally used in low and middle-end vehicle.
A upper important spare and accessory parts for inhaling lock construction as electric tail gate structure, its effect are mainly closed in electronic strut
First of lock is buckled in the case that door dynamics is relatively light, then electric motor starting drives reduction box that slowly lock is drawn by drag-line line
It is tightened to second lock, to realize and strut interoperation is slowly graceful shuts tail-gate.
It is most of in suction lock actuator industry in current electric tail gate that worm gear structure is driven by motor, be finally
Drive drag-line line is exported by rack-and-pinion by realize block action and homing action.
The drive mechanism that lock actuator is inhaled in current electric tail gate is essentially worm gear structure（Be driven it is bigger, entirely
Using Spur Gear Driving, then series is more in portion, takes up space very big）, transmission efficiency is relatively low（The first order usually only about 0.4 ~ 0.5）,
So in the case of output pulling force on an equal basis, the power requirement of motor is larger, and volume is also larger, and whole drive mechanism intensity is wanted
Ask also relatively high, and due to the volumetric constraint of the self-locking performance of worm and gear and drive mechanism, current control software needs very
It is subtle to match suction lock motor, it otherwise easy tos produce pulling force not enough pass and does not visit, and pulling force is larger, causes worm and gear stuck
It can lead to functional fault.
Invention content
The technical problem to be solved by the utility model is to provide the small Tooth Number Difference Planetary Transmissions on a kind of automobile power back door
Structure, solve electric tail gate commonly it is upper inhale lock construction using worm gear structure transmission efficiency it is low, motor power is big, motor
Of high cost, strength of gear teeth demand is higher thus cost is higher and because pulling force is larger and the accuracy of manufacture leads to worm gear structure
The relatively high technical problem of easy stuck failure rate.
The utility model is achieved through the following technical solutions：A kind of fewer differential teeth planetary on automobile power back door passes
Dynamic structure, including straight-tooth running part, few teeth difference type Gear Planet Transmission part and rack-and-pinion output par, c, the straight-tooth transmission
Part is including motor and motor gear, second level transmission gear and with eccentric wheel spur gear, few teeth difference type Gear Planet Transmission portion packet
It includes with eccentric wheel spur gear, the planet cover board being fixed on gear housing, planet carrier, bearing, planetary gear and locking output
Gear, rack-and-pinion output par, c include locking output gear and locking output rack, the band eccentric wheel spur gear, planet
Gear cover plate, planet carrier, bearing, planetary gear and locking output gear are arranged concentrically, and centre passes through a piece center of setting
Axis is simultaneously fixed on by central shaft on deceleration box, and rack is constrained by deceleration box and keeps linear motion, motor gear and second
Grade transmission gear engagement, second level transmission gear are engaged with eccentric wheel spur gear, locking output rack and locking output gear
On pinion gear engaged transmission.
There are one ring gears, planetary gear to be installed on for setting among the lock output gear as a preferred technical solution,
In the ring gear and with ring gear engaged transmission.
Setting is there are two catching groove on the planet carrier as a preferred technical solution, face two on planetary gear cover board
Catching groove is provided with corresponding fixture block, and fixture block is incorporated in catching groove.
The planetary gear is provided with two positioning convex portions, planet carrier with respect to planet carrier side as a preferred technical solution,
One bearing mounting hole of centre setting, bearing is installed in the bearing mounting hole, and it is recessed that the both sides of bearing mounting hole are provided with positioning
Slot, the positioning convex portion on planetary gear are inserted in positioning groove, and planet carrier constrains planetary gear left and right directions linear motion.
The utility model has the beneficial effects that：The utility model structure driven efficiency is higher, and motor and gear requirement are relatively low,
Cost is relatively low, and drive mechanism is reliable, and it is as follows to compare common Worm and Worm Gear Driving advantage performance：
1, common Worm and Worm Gear Driving efficiency is about 0.5*0.98（Worm screw band worm gear is again with rack）=0.49；This practicality
New structure transmission efficiency is about 0.98*0.98*0.99*0.98=0.93, is approximately 2 times of conventional worm worm screw；
Same power is exported, the motor torque of worm gear structure is at least twice of the utility model structure, motor body
Product is larger, and motor cost is higher；The requirement of the utility model structure motor torque is smaller, and cost is relatively low；
2, worm gear structure is compared, the motor torque of the utility model structure reduces one times, in stall, prime
One times of the intensity requirement reduction of transmission gear, the number of teeth substantially 7 that the special planet operative gear of this structure of rear class engages simultaneously ~
9 teeth substantially reduce the intensity requirement of rear class gear, cost-effective；
3, worm gear structure is compared, this structure is driven for straight-tooth, will not be stuck, and failure rate is extremely low.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the configuration schematic diagram of the utility model；
Fig. 2 is the configuration schematic diagram at another visual angle of the utility model.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
This specification（Including any accessory claim, abstract and attached drawing）Disclosed in any feature, except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
As depicted in figs. 1 and 2, including straight-tooth running part, few teeth difference type Gear Planet Transmission part and rack-and-pinion export
Part, straight-tooth running part include motor and motor gear 1, second level transmission gear 2 and with eccentric wheel spur gear 3, few tooth
Poor type Gear Planet Transmission portion include with eccentric wheel spur gear 3, the planet cover board 4 being fixed on gear housing, planet carrier 5, bearing 6,
Planetary gear 7 and locking output gear 8；
Rack-and-pinion output par, c includes locking output gear 8 and locking output rack 9, band eccentric wheel spur gear 3, row
Star gear cover plate 4, planet carrier 5, bearing 6, planetary gear 7 and locking output gear 8 are arranged concentrically, and centre passes through setting one
Root central shaft is simultaneously fixed on by central shaft 10 on deceleration box；
Rack is constrained by deceleration box keeps linear motion, motor gear to be engaged with second level transmission gear, and the second level passes
Moving gear is engaged with eccentric wheel spur gear, locking output rack and the pinion gear engaged transmission being latched on output gear.
As shown in Fig. 2, there are one ring gears 11, planetary gear 7 to be installed on the ring gear for setting among locking output gear
In 11 and with ring gear engaged transmission, setting is there are two catching groove 12 on planet carrier 5, two catching grooves 12 of face on planetary gear cover board
It is provided with corresponding fixture block 13, fixture block is incorporated in catching groove 12.
Planetary gear is provided with two positioning convex portions 14 with respect to planet carrier side, and a bearing, which is arranged, among planet carrier installs
Hole, bearing 6 are installed in the bearing mounting hole 15, and the both sides of bearing mounting hole 15 are provided with positioning groove 16, on planetary gear
Positioning convex portion 14 be inserted in positioning groove 16, planet carrier constrain planetary gear left and right directions linear motion.
Operation principle：1, motor and motor gear 1 drive second level spur gear 2 and the spur gear 3 with eccentric wheel successively, make
Spur gear 3 rotates around center axis；
(2), band eccentric wheel spur gear 3 drives planetary gear 7 to swing and rotate by bearing 6, and planet carrier 5 constrains planet tooth
7 left and right directions linear motion is taken turns, planet cover board 4 is that fixing piece constrains about 5 planet carrier linear motion, and aggregate performance is exactly planet
Gear 7 is along axis swing and rotates, and the internal gear engagement of planet tooth and locking output gear 8, rotary force band moving gear 8 is along axle center
Rotation（Slow down bigger）；
(3) the pinion gear of the locking output gear 8 after, slowing down drives locking output rack to move in a straight line
The utility model has the beneficial effects that：The utility model structure driven efficiency is higher, and motor and gear requirement are relatively low,
Cost is relatively low, and drive mechanism is reliable, and it is as follows to compare common Worm and Worm Gear Driving advantage performance：
1, common Worm and Worm Gear Driving efficiency is about 0.5*0.98（Worm screw band worm gear is again with rack）=0.49；This practicality
New structure transmission efficiency is about 0.98*0.98*0.99*0.98=0.93, is approximately 2 times of conventional worm worm screw；
Same power is exported, the motor torque of worm gear structure is at least twice of the utility model structure, motor body
Product is larger, and motor cost is higher；The requirement of the utility model structure motor torque is smaller, and cost is relatively low；
2, worm gear structure is compared, the motor torque of the utility model structure reduces one times, in stall, prime
One times of the intensity requirement reduction of transmission gear, the number of teeth substantially 7 that the special planet operative gear of this structure of rear class engages simultaneously ~
9 teeth substantially reduce the intensity requirement of rear class gear, cost-effective；
3, worm gear structure is compared, this structure is driven for straight-tooth, will not be stuck, and failure rate is extremely low.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work should be covered within the scope of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (4)
1. the small Tooth Number Difference Planetary Transmission structure on a kind of automobile power back door, it is characterised in that：Including straight-tooth running part, few tooth
Poor type Gear Planet Transmission part and rack-and-pinion output par, c, the straight-tooth running part include motor and motor gear, second
Grade transmission gear and with eccentric wheel spur gear, few teeth difference type Gear Planet Transmission portion includes band eccentric wheel spur gear, is fixed on gear
Planet cover board, planet carrier, bearing, planetary gear on babinet and locking output gear, rack-and-pinion output par, c include closing
Lock output gear and locking output rack, the band eccentric wheel spur gear, planetary gear cover board, planet carrier, bearing, planet tooth
Wheel and locking output gear are arranged concentrically, and centre passes through a piece central shaft of setting and is fixed on deceleration box by central shaft
On, rack is constrained by deceleration box keeps linear motion, motor gear to be engaged with second level transmission gear, second level transmission gear
It is engaged with band eccentric wheel spur gear, locking output rack and the pinion gear engaged transmission being latched on output gear.
2. the small Tooth Number Difference Planetary Transmission structure on automobile power back door as described in claim 1, it is characterised in that：The lock is defeated
Go out setting among gear be installed in the ring gear there are one ring gear, planetary gear and with ring gear engaged transmission.
3. the small Tooth Number Difference Planetary Transmission structure on automobile power back door as described in claim 1, it is characterised in that：The planet
Setting is there are two catching groove on frame, and two catching grooves of face are provided with corresponding fixture block on planetary gear cover board, and fixture block is incorporated in catching groove
In.
4. the small Tooth Number Difference Planetary Transmission structure on automobile power back door as described in claim 1, it is characterised in that：The planet
Gear is provided with two positioning convex portions with respect to planet carrier side, a bearing mounting hole is arranged among planet carrier, bearing is installed on this
In bearing mounting hole, the both sides of bearing mounting hole are provided with positioning groove, and it is recessed that the positioning convex portion on planetary gear is inserted in positioning
In slot, planet carrier constrains planetary gear left and right directions linear motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820128111.4U CN208057835U (en) | 2018-01-25 | 2018-01-25 | A kind of small Tooth Number Difference Planetary Transmission structure on automobile power back door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820128111.4U CN208057835U (en) | 2018-01-25 | 2018-01-25 | A kind of small Tooth Number Difference Planetary Transmission structure on automobile power back door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057835U true CN208057835U (en) | 2018-11-06 |
Family
ID=63996228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820128111.4U Expired - Fee Related CN208057835U (en) | 2018-01-25 | 2018-01-25 | A kind of small Tooth Number Difference Planetary Transmission structure on automobile power back door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067833A (en) * | 2019-05-29 | 2019-07-30 | 苏州博安捷机器人科技有限公司 | A kind of bicircular arcs mesh with backlash less-tooth-difference planetary transmission |
-
2018
- 2018-01-25 CN CN201820128111.4U patent/CN208057835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067833A (en) * | 2019-05-29 | 2019-07-30 | 苏州博安捷机器人科技有限公司 | A kind of bicircular arcs mesh with backlash less-tooth-difference planetary transmission |
| CN110067833B (en) * | 2019-05-29 | 2024-05-07 | 苏州博安捷机器人科技有限公司 | Double-arc gapped meshing planetary transmission device with small tooth difference |
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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: 20181106 Termination date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |