CN206307106U - The deceleration device and power steering system of a kind of adjustable clearance - Google Patents
The deceleration device and power steering system of a kind of adjustable clearance Download PDFInfo
- Publication number
- CN206307106U CN206307106U CN201621377876.9U CN201621377876U CN206307106U CN 206307106 U CN206307106 U CN 206307106U CN 201621377876 U CN201621377876 U CN 201621377876U CN 206307106 U CN206307106 U CN 206307106U
- Authority
- CN
- China
- Prior art keywords
- worm
- worm screw
- sliding block
- deceleration device
- adjustable clearance
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of deceleration device and power steering system of adjustable clearance, worm screw is driven by motor, worm screw drives the worm gear for engaging, and rotated with the output shaft of worm gear interference fit, the deceleration device of adjustable clearance also includes being used to the governor motion for adjusting the gap or interference produced between worm and wheel；Governor motion includes：Sliding block, the upper end of worm screw is inserted；Elastic component, is nested on sliding block, acts on sliding block, makes to promote sliding block to slide in the sliding channel that it is set in the governor motion, pushes the upper end of worm screw to worm gear all the time；When gap coordinates between worm and wheel, resilient element urges sliding block, while drive worm screw to be moved towards worm gear, to eliminate the gap between worm and wheel；When interference fit between worm and wheel, elastic component shrinks, and is produced in sliding channel and shrinks displacement, to offset the interference between worm screw and the worm gear.The utility model reaches regulation worm and gear fit clearance, offsets interference, the effect for increasing and turning round of slowing down.
Description
Technical field
The utility model belongs to motorcar electric power-assisted technical field, and steering is related to a kind of deceleration device, more particularly to one
Plant a kind of deceleration device and power steering system of adjustable clearance.
Background technology
Electric boosting steering system is a kind of current new power steering system.Mainly by reducing gear, sensor, control
Device processed, motor etc. are constituted.Reducing gear in electric boosting steering system, can be subtracted the moment of torsion that assist motor is input into
Speed increases turns round output after operation, so that assist steering system performs assist function.Therefore, reducing gear is highly important in system
One ring.
Reducing gear in usual electric boosting steering system is designed, domestic at present mostly using worm and gear by fixation
The spacing structure of bearings realizes the fixation of rigging position.By being fixed on reducer shell after worm gear and output shaft fixation
On bearings be mounted to fixed position, worm screw one end relies on and the spacing branch of bearing being fixed on reducer shell
Support, one end relies on the bearing and the spacing assembling of housing being assemblied on worm screw, so as to worm and gear is relative in realizing reducing gear
The fixation of position.
Due to the tooth form for being reflected in worm gear, worm screw higher, relative to the frictional force requirement of reducing gear in steering
Had higher requirements in machining accuracy.And in practice there is certain machining accuracy error in worm gear, worm screw work in-process, and housing
Process equipment, the influence of manufacturing process, after worm gear and worm screw are assemblied in decelerating casing in a manner described, in the flank of tooth are also received in processing
There is certain gap or interference with closing.Because having with the error closed, when worm and gear works in reducing gear, it is reflected in
A certain degree of fluctuation is there is in frictional force, and average force value also has the increase or reduction of respective degrees.This reducing gear
Mode it is difficult to ensure that after assembling frictional behaviour uniformity, and this kind of structure, with the durable abrasion of worm and gear, performance is gradually
Decline.
Therefore, the deceleration device and power steering system of a kind of adjustable clearance how are provided, to solve to subtract in the prior art
There is certain gap or interference in the worm gear of fast mechanism and worm screw, be reflected in frictional force and there is certain journey in the flank of tooth with closing
The fluctuation of degree, and average force value also have respective degrees increase or reduction and cause reducing gear assemble after be difficult to ensure that frictional property
Can uniformity, and as worm and gear weares and teares for a long time, the defect such as performance is gradually reduced is real to have turned into practitioner in the art urgently
The technical problem of solution.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of deceleration of adjustable clearance
Device and power steering system, exist necessarily in the flank of tooth for solving the worm gear of reducing gear in the prior art and worm screw with closing
Gap or interference, be reflected in frictional force and there is a certain degree of fluctuation, and average force value also has the increase of respective degrees
Or reduce and cause reducing gear to be difficult to ensure that the uniformity of frictional behaviour after assembling, and worn and torn for a long time with worm and gear, property
The problem that can be gradually reduced.
In order to achieve the above objects and other related objects, on the one hand the utility model provides a kind of deceleration dress of adjustable clearance
Put, drive the worm screw of the deceleration device of the adjustable clearance by motor, the worm screw drives the worm gear for engaging, and with institute
The output shaft rotation of worm gear interference fit is stated, the deceleration device of the adjustable clearance also includes being used to adjust the worm and wheel
Between produce gap or interference governor motion；Wherein, the governor motion includes：Sliding block, the upper end insertion of the worm screw
Wherein；Elastic component, is nested on the sliding block, acts on the sliding block, leads to its slip set in the governor motion
Promote the sliding block to slide in road, push the upper end of the worm screw to worm gear all the time；Wherein, when between the worm and wheel
When gap coordinates, the resilient element urges sliding block, while drive the worm screw to be moved towards worm gear, to eliminate the worm and wheel
Between gap；When interference fit between the worm screw and the worm gear, the elastic component shrinks, in the sliding channel
Produce and shrink displacement, to offset the interference between the worm screw and the worm gear.
In an embodiment of the present utility model, the governor motion also includes：For accommodating the sliding block and elastic component
Adjustment housings；It is raised that the upper-center of the adjustment housings is provided with a triangular shape；It is installed in the sliding block and elastic component
After the adjustment housings, the regulation bearing of the adjustment housings is pressed into；With it is described regulation bearing match, and with the worm screw
The bushing that small splaying coordinates.
In an embodiment of the present utility model, the deceleration device of the adjustable clearance is also included for accommodating the regulation
The device case of mechanism, and with the triangular shape male cooperation positioning the device case of the governor motion.
In an embodiment of the present utility model, the governor motion passes through a housing bearing force fit described device shell
In body.
In an embodiment of the present utility model, the worm screw includes pressing fit into the worm screw, and is secured to connection
Worm bearing；The upper end of the worm screw is provided with a groove, and the O-ring contacted with the bushing is provided with the groove, to disappear
Except the gap between worm and wheel, and buffer deformation.
In an embodiment of the present utility model, there is gap between the worm screw and the bushing, the worm screw is in institute
State in governor motion to adjust the center of bearing as origin carrys out beat.
In an embodiment of the present utility model, it is provided with the effect end that the sliding block interacts with elastic component interspersed
Enter inside the elastic component, with the convex platform interacted with the elastic component.
On the other hand the utility model provides a kind of power steering system, including described adjustable clearance deceleration device.
As described above, the deceleration device and power steering system of adjustable clearance described in the utility model, have with following
Beneficial effect：
The deceleration device and power steering system of adjustable clearance described in the utility model are arranged on regulation by by worm screw
In mechanism, if worm and gear is coordinated and being influenceed by trueness error and be there is gap, then can regulated mechanism at worm screw small end
The active force of middle spring and worm gear of fitting；If worm and gear is coordinated and being influenceed by precision and be there is interference, then worm screw can be received worm gear
The reverse beat of active force remove spring in compression adjustment mechanism.In the case of two kinds, governor motion is provided which one relative to worm gear
The power in direction come compensate worm and gear coordinate when gap or interference.The reducing gear less than normal to there is gap frictional force, regulation
Mechanism compensates this gap, and frictional force can increase；To there is interference, frictional force reducing gear bigger than normal, governor motion reduces this mistake
The amount of being full of, frictional force can reduce.So as to the design compensation mismatch error of worm and gear of adjustable clearance, improvement reductor is served
The effect of the frictional force performance of structure, offsets interference, and the effect of torsion is given in deceleration.
Brief description of the drawings
Fig. 1 is shown as the dimensional structure diagram of the deceleration device of adjustable clearance of the present utility model.
Fig. 2 is shown as the stereochemical structure of the deceleration device of the adjustable clearance along Fig. 1 shown in AA ' directions of the present utility model
Generalized section.
Fig. 3 is shown as the dimensional structure diagram of worm screw of the present utility model.
Fig. 4 is shown as the structural scheme of mechanism of the worm gear along Fig. 1 shown in AA ' directions of the present utility model and output shaft.
The stereochemical structure that Fig. 5 A are shown as adjustment structure in the deceleration device of adjustable clearance of the present utility model is quick-fried according to figure.
Fig. 5 B are shown as the section of structure along Fig. 1 shown in BB ' directions of the present utility model.
Component label instructions
The deceleration device of 1 adjustable clearance
11 worm screws
12 worm gears
13 output shafts
14 device cases
15 housing bearings
16 adjustment structures
17 locking nuts
111 worm bearings
112 worm screw main bodys
113 O-rings
161 sliding blocks
161A through holes
161B convex platforms
162 elastic components
163 adjustment housings
163A triangular shapes are raised
164 regulation bearings
165 bushings
166 sliding channels
Specific embodiment
Implementation method of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
Refer to accompanying drawing.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., is only used to coordinate
Content disclosed in specification, so that those skilled in the art understands and reads, being not limited to the utility model can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the effect for not influenceing the utility model can be generated and under the purpose to be reached, all should still fall in the utility model institute
In the range of the technology contents of announcement are obtained and can covered.Meanwhile, in this specification it is cited as " on ", D score, "left", "right",
The term of " centre " and " one " etc., is merely convenient to understanding for narration, and is not used to limit the enforceable scope of the utility model,
Its relativeness is altered or modified, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
Embodiment one
The present embodiment provides a kind of deceleration device of adjustable clearance, and the deceleration device of the adjustable clearance is driven by motor
Worm screw, the worm screw drives the worm gear for engaging, and is rotated with the output shaft of the worm gear interference fit, described adjustable
The deceleration device of gap also includes being used to the governor motion for adjusting the gap or interference produced between the worm and wheel；Wherein,
The governor motion includes：
Sliding block, the upper end of the worm screw is inserted；
Elastic component, is nested on the sliding block, acts on the sliding block, the slip for making it be set in the governor motion
Promote the sliding block to slide in passage, push the upper end of the worm screw to worm gear all the time；
Wherein, when gap coordinates between the worm and wheel, the resilient element urges sliding block, while driving the snail
Bar is moved towards worm gear, to eliminate the gap between the worm and wheel；
When interference fit between the worm screw and the worm gear, the elastic component shrinks, and is produced in the sliding channel
It is raw to shrink displacement, to offset the interference between the worm screw and the worm gear.
The deceleration device of the adjustable clearance provided the present embodiment below with reference to diagram is described in detail.Refer to
Fig. 1 and Fig. 2, be respectively indicated as the deceleration device of adjustable clearance dimensional structure diagram and along Fig. 1 shown in AA ' directions can
Adjust the generalized section of the stereochemical structure of the deceleration device in gap.As depicted in figs. 1 and 2, the deceleration device of the adjustable clearance
Stereochemical structure 1 include worm screw 11, worm gear 12, output shaft 13, device case 14, housing bearing 15 and adjustment structure 16.
The general principle of the deceleration device 1 of adjustable clearance described in the present embodiment is：
The worm screw 11 of the deceleration device 1 of the adjustable clearance, worm screw 11 is driven to be rotated by motor input torque by motor,
The worm screw 11 drives the worm gear 12 for engaging, and is rotated with the output shaft 13 of the interference fit of the worm gear 12.Worm and gear
There is speed reducing ratio so as to realize the moment of torsion increase of the output shaft 13 of output end and reduce rotating speed functions.
With continued reference to Fig. 1 and Fig. 2, the adjustment structure 16 in the deceleration device 1 of the adjustable clearance is pressed directly into device shell
Triangular shape projection in body 14 and by upper end in governor motion 16 is positioned with device case 14, the force fit of housing bearing 15 dress
Put in housing 14, play a part of support worm gear 12 and output shaft 13 rotates.In the present embodiment, the snail for having assembled
Urgent locking nut 17 after wheel 12 and output shaft 13.
Fig. 3 is referred to, the dimensional structure diagram of worm screw is shown as.As shown in figure 3, the worm screw 11 includes worm bearing
111st, worm screw main body 112, O-ring 113.In the present embodiment, the worm bearing 111 presses fit into the worm screw master of the worm screw 11
In body 112, and achieved a fixed connection with worm screw main body 112.The upper end of the worm screw 11 is provided with a groove, is installed in the groove
There is an O-ring 113, the O-ring 113 drives worm screw in motor, drive worm gear and output shaft rotational instant to eliminate worm and wheel
Between gap, and buffer deformation.
Fig. 4 is referred to, the structural scheme of mechanism of the worm gear and output shaft that are shown as along Fig. 1 shown in AA ' directions.Such as Fig. 4 institutes
Show, the rigid interference fit of the worm gear 12 and output shaft 13, when the worm screw 11 drives the worm gear 12, rotary torsion passes through
The front end spline structure of the output shaft 13 is passed.
Refer to Fig. 5 A and Fig. 5 B, be shown as adjustment structure in the deceleration device of adjustable clearance stereochemical structure it is quick-fried according to figure and
Section of structure along Fig. 1 shown in BB ' directions.As fig. 5 a and fig. 5b, the adjustment structure 16 includes sliding block 161, bullet
Property part 162, adjustment housings 163, regulation bearing 164 and bushing 165.
Wherein, the center of the sliding block 161 offers a through hole 161A, and it is inserted in the upper end in order to the worm screw 11
In.The elastic component 162 is nested on the sliding block 161, acts on the sliding block 161, makes the sliding block 161 in the regulation
Promote the sliding block 161 to slide on the sliding channel 166 set in mechanism 16, push the upper end of the worm screw 11 to snail all the time
Wheel 12.In the present embodiment, it is provided with the effect end that the sliding block 161 interacts with elastic component 162 and is interted into the bullet
Inside property part, with the convex platform 161B interacted with the elastic component 162.In the present embodiment, the elastic component 162 is one
Metal spring.
In the present embodiment, the sliding block 161 and elastic component 162 are installed on one for accommodating the sliding block and elastic component
Adjustment housings, the adjustment housings 163 in cavity-like cylinder, and the upper-center of the adjustment housings to be provided with a triangular shape convex
163A is played, is positioned with device case 14.
In the present embodiment, after the sliding block 161 and elastic component 162 are installed on the adjustment housings 163, will adjust
Bearing 164 is pressed into the adjustment housings 163.
After regulation bearing 164 is pressed into the adjustment housings 163, load matched in the regulation bearing 164,
And the bushing 165 coordinated with the small splaying of the worm screw 11.Between the small end of the bushing 165 and worm screw 11 is present necessarily
Gap, can coordinate support worm screw 11 to rotate by the O-ring 113.Between existing between the worm screw 11 and the bushing 165
Gap, the worm screw 11 is in the governor motion 16 to adjust the beat that certain angle amount is realized at the center of bearing 164 as origin.
The detailed process of the deceleration device 1 of the adjustable clearance described in the present embodiment is：
When gap coordinates between the worm screw 11 and worm gear 12, the elastic component 162 is promoted in the sliding channel 166
Sliding block 161, while drive the worm screw 11 to be moved towards worm gear 12, to eliminate the gap between the worm and wheel.
When interference fit between the worm screw 11 and the worm gear 12, the elastic component 162 is in the sliding channel 166
Shrink, produce and shrink displacement, to offset the interference between the worm screw and the worm gear, that is, offset worm and wheel flank of tooth interference
The friction for bringing.
The deceleration device of the adjustable clearance described in the present embodiment is arranged in governor motion by by worm screw, if worm and gear
Cooperation is influenceed by trueness error and there is gap, then at the worm screw small end can in regulated mechanism the active force of spring and paste
Close worm gear.If worm and gear is coordinated and being influenceed by precision and be there is interference, then worm screw can be gone by the reverse beat of the active force of worm gear
Spring in compression adjustment mechanism.In the case of two kinds, governor motion is provided which the power relative to worm gear direction to compensate worm gear
Gap or interference when worm screw coordinates.The reducing gear less than normal to there is gap frictional force, governor motion compensates this gap, friction
Power can increase；To there is interference, frictional force reducing gear bigger than normal, governor motion reduces this magnitude of interference, and frictional force can reduce.From
And the design compensation of the adjustable clearance mismatch error of worm and gear, serve the work of the frictional force performance for improving reducing gear
With, interference is offset, the effect of torsion is given in deceleration.
Embodiment two
The present embodiment provides a kind of power steering system, the power steering system by above-mentioned adjustable clearance deceleration device,
Sensor, controller, motor etc. are constituted.
In sum, the deceleration device and power steering system of adjustable clearance described in the utility model are pacified by by worm screw
In governor motion, if worm and gear is coordinated and being influenceed by trueness error and be there is gap, then can be subject at worm screw small end
The active force of spring in governor motion and worm gear of fitting；If worm and gear is coordinated and being influenceed by precision and be there is interference, then worm screw
Spring in compression adjustment mechanism can be removed by the reverse beat of the active force of worm gear.In the case of two kinds, governor motion is provided which a phase
Gap when worm and gear coordinates or interference are compensated for the power in worm gear direction.The reductor less than normal to there is gap frictional force
Structure, governor motion compensates this gap, and frictional force can increase；To there is interference, frictional force reducing gear bigger than normal, governor motion contracting
Subtract this magnitude of interference, frictional force can reduce.So as to the design compensation mismatch error of worm and gear of adjustable clearance, improvement is served
The effect of the frictional force performance of reducing gear, offsets interference, and the effect of torsion is given in deceleration.The utility model effectively overcomes existing skill
Various shortcoming in art and have high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out under without prejudice to spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.
Claims (8)
1. a kind of deceleration device of adjustable clearance, it is characterised in that the deceleration device of the adjustable clearance is driven by motor
Worm screw, the worm screw drives the worm gear for engaging, and is rotated with the output shaft of the worm gear interference fit, the adjustable clearance
Deceleration device also include being used to adjust the governor motion of the gap or interference produced between the worm and wheel；Wherein, institute
Stating governor motion includes：
Sliding block, the upper end of the worm screw is inserted；
Elastic component, is nested on the sliding block, acts on the sliding block, the sliding channel for making it be set in the governor motion
It is interior to promote the sliding block to slide, push the upper end of the worm screw to worm gear all the time；
Wherein, when gap coordinates between the worm and wheel, the resilient element urges sliding block, while driving the worm screw court
Worm gear is moved, to eliminate the gap between the worm and wheel；
When interference fit between the worm screw and the worm gear, the elastic component is shunk, and receipts are produced in the sliding channel
Condense shifting, to offset the interference between the worm screw and the worm gear.
2. the deceleration device of adjustable clearance according to claim 1, it is characterised in that：
The governor motion also includes：Adjustment housings for accommodating the sliding block and elastic component；The upper end of the adjustment housings
It is raised that center is provided with a triangular shape；
After the sliding block and elastic component are installed on the adjustment housings, the regulation bearing of the adjustment housings is pressed into；
Matched with the regulation bearing, and the bushing coordinated with the small splaying of the worm screw.
3. the deceleration device of adjustable clearance according to claim 2, it is characterised in that：The deceleration device of the adjustable clearance
Also include for accommodating the device case of the governor motion, and with the triangular shape male cooperation positioning the governor motion
Device case.
4. the deceleration device of adjustable clearance according to claim 3, it is characterised in that：The governor motion passes through a housing
In bearing force fit described device housing.
5. the deceleration device of adjustable clearance according to claim 2, it is characterised in that：The worm screw is described including pressing fit into
Worm screw, and it is secured to the worm bearing of connection；The upper end of the worm screw is provided with a groove, be provided with the groove with it is described
The O-ring of bushing contact, to eliminate the gap between worm and wheel, and buffers deformation.
6. the deceleration device of adjustable clearance according to claim 2, it is characterised in that：Between the worm screw and the bushing
There is gap, the worm screw is in the governor motion to adjust the center of bearing as origin carrys out beat.
7. the deceleration device of adjustable clearance according to claim 1, it is characterised in that：The sliding block and elastic component phase interaction
It is provided with effect end and is interted inside the elastic component, with the convex platform interacted with the elastic component.
8. a kind of power steering system, it is characterised in that including subtracting for the adjustable clearance as any one of claim 1-7
Speed variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621377876.9U CN206307106U (en) | 2016-12-15 | 2016-12-15 | The deceleration device and power steering system of a kind of adjustable clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621377876.9U CN206307106U (en) | 2016-12-15 | 2016-12-15 | The deceleration device and power steering system of a kind of adjustable clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206307106U true CN206307106U (en) | 2017-07-07 |
Family
ID=59251508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621377876.9U Expired - Fee Related CN206307106U (en) | 2016-12-15 | 2016-12-15 | The deceleration device and power steering system of a kind of adjustable clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206307106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878553A (en) * | 2017-10-30 | 2018-04-06 | 安徽江淮汽车集团股份有限公司 | Novel steering device |
| CN110015341A (en) * | 2017-12-05 | 2019-07-16 | 本田技研工业株式会社 | Steering actuator and vehicle |
| CN110949493A (en) * | 2018-09-27 | 2020-04-03 | Trw汽车股份有限公司 | Electric power steering system and method for producing a steering system |
-
2016
- 2016-12-15 CN CN201621377876.9U patent/CN206307106U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878553A (en) * | 2017-10-30 | 2018-04-06 | 安徽江淮汽车集团股份有限公司 | Novel steering device |
| CN110015341A (en) * | 2017-12-05 | 2019-07-16 | 本田技研工业株式会社 | Steering actuator and vehicle |
| CN110015341B (en) * | 2017-12-05 | 2021-09-10 | 本田技研工业株式会社 | Steering actuator and vehicle |
| CN110949493A (en) * | 2018-09-27 | 2020-04-03 | Trw汽车股份有限公司 | Electric power steering system and method for producing a steering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206307106U (en) | The deceleration device and power steering system of a kind of adjustable clearance | |
| CN103523207B (en) | A kind of electric steering engine | |
| CN205446668U (en) | Eliminate structure of tooth clearance | |
| CN103753529B (en) | A kind of industrial robot joint gapless drive mechanism | |
| CN203395102U (en) | Worm and gear transmission mechanism capable of automatically eliminating clearance | |
| CN103671743A (en) | Planetary and harmonic combined speed reducer | |
| CN103335064B (en) | A kind of automatic anti-backlash twin worm reductor | |
| CN201763894U (en) | Worm and gear driving structure capable of accurately adjusting backlash | |
| CN102478098A (en) | Compact type zero side clearance parallel-shaft gear speed reducer | |
| CN201693188U (en) | Driving device for turning-milling worktable spindle | |
| CN106151484A (en) | A kind of eliminate the device of gear backlash, method, control system and control method | |
| JP2012067899A (en) | Step-up/reduction gear | |
| CN208428017U (en) | A kind of worm and gear blind-mate device | |
| CN202182153U (en) | Cantilever drive type double-motor anti-backlash rotary mechanism | |
| CN204094480U (en) | The coding turntable of Changeable Lead Worm Wheel System | |
| CN106151486A (en) | A kind of motor-driven jaw clutch formula automobile reverse gear structure | |
| CN204437188U (en) | A kind of elevator worm and gear speed-reduction apparatus | |
| CN202510664U (en) | Backlash adjusting device for gear pair | |
| CN202790349U (en) | Gear-driven rotary mechanism | |
| CN106641157B (en) | Novel joint speed reducer of screw drive formula | |
| CN201731019U (en) | Transmission gap adjusting mechanism | |
| CN202082345U (en) | Turning vehicle-mounted transmission case | |
| CN204985552U (en) | Industrial robot reduction gear | |
| CN204843676U (en) | Two servo digit control machine tools | |
| CN203809616U (en) | Single-stage hard-tooth-surface cycloid steel ball planetary speed reducer |
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: 20170707 Termination date: 20191215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |