CN1892073A - Transmission gear backlash eliminating method and its structure - Google Patents
Transmission gear backlash eliminating method and its structure Download PDFInfo
- Publication number
- CN1892073A CN1892073A CN 200510080349 CN200510080349A CN1892073A CN 1892073 A CN1892073 A CN 1892073A CN 200510080349 CN200510080349 CN 200510080349 CN 200510080349 A CN200510080349 A CN 200510080349A CN 1892073 A CN1892073 A CN 1892073A
- Authority
- CN
- China
- Prior art keywords
- swing arm
- follower
- driving wheel
- backlash
- screw rod
- 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.)
- Granted
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The invention relates to a backlash eliminating method for a drive mechanism and the structure thereof. And it comprises a drive gear and two driven gears mounted on a main body, where the drive gear engages with the two driven gears, one side of the drive gear is connected with a power set; each driven gear is pin-jointed with the main body by a swing arm, an elastic component is arranged between each swing arm and the main body so that a slow elastic force is applied on the driven gear, and thus the driven gear has an elastic draw pivot which is constantly located on a straight line passing through the centers of the drive gear and the driven gear, and when the backlash occurs, each driven gear closes to the rack, not only able to eliminate the backlash but also able to improve accuracy of gear engagement, raising driving efficiency.
Description
Technical field
The present invention relates to a kind of gear-driven technical field, particularly a kind of backlash that is produced when eliminating gear transmission, and promote the invention that steady density is meshed in gear transmission.
Background technique
The transmission of present many industrial machines, displacement are to utilize various profiles of tooth to reach in conjunction with transmission, and that the mechanism of profile of tooth has is quite multiple, as the combination of gear, driving screw, tooth bar etc., all are to mutually combine transferring power by the profile of tooth thing.And tooth shaped component is applied to the generation that the shortcoming of driving mechanism maximum is backlash, as shown in Figure 1, when wheel and rack meshes, has the gap between tooth and the tooth.And the reason that causes backlash may come from outside manufacturing tolerances, the abrasion, also may be to design for the frictional force that reduces transmission.But for the more and more accurate driving mechanism of transmission demand, the existence of backlash except meeting causes unnecessary noise and vibrations, error on the easier formation transmission location and transmission quality, efficient low.Just there are many home and abroad dealers to drop into for this reason and improve the research and development that gear transmission produces backlash, be outlined in down:
At first, as No. 395468 bulletin of Chinese patent, title: the back clearance of double pinion and tooth row engagement is eliminated structure (hereinafter to be referred as commonly using), see also Fig. 2, Fig. 3, this commonly uses one mainly is by a fixed plate, one driving mechanism, two eccentric rollers, two pinion driving mechanism and advise for the moment belt etc. and partly constitute, be primarily characterized in that: utilize on this fixed plate appropriate location to install a driving mechanism and two pinion driving mechanism respectively, and the axostylus axostyle top of this mechanism is provided with respectively advises for the moment belt pulley, and on each time rule belt pulley, be nested with and advise belt for the moment, and when driving mechanism and pinion drive are inter-agency, outside the rule belt eccentric roller is set respectively, the rule belt produces suitable tension force when using extruding, the tension force that the rule belt produces during mat, time rule belt pulley to the two pinion driving mechanism produces reversal interlocking relay respectively, and then impel the small gear of this two driving mechanism respectively the sawtooth of tooth row to be formed the reverse and permanent monolateral tight engagement state that is, use and eliminate the back clearance person that two sawtooth are produced in engagement.
Though above-mentioned commonly using can reach elimination backlash purpose on the function of use, but because be that the tension force that produces by time rule belt pulley and reaching makes that small gear is permanent to be tight with tooth row and to contact, so it is relative when whole mechanism operates, this time rule belt pulley produces tension force and also acts on the small gear, and the loss of increase transmission efficiency, if the i.e. running of small gear is when driving by motor, then the power loss of revolution also because of the time rule belt pulleys tension force effect increase.In addition with regard to eliminate backlash usefulness with regard to stability, this commonly use creation still non-the best design and have and need be improved.
Secondly, consult shown in Figure 4 again, another commonly uses creation is bulletin No. 542766 " numerical control machine instrument " patent of invention (hereinafter to be referred as commonly using two), this commonly uses two is by for the X-axis line in a kind of structure, three feed mechanisms of Y-axis line and z axis, make an axle that is used to place a stand of a workpiece and be used for fixing an instrument relatively move to carry out machining, wherein use two motors and use a tooth bar for each axis, small gear with a preload be applied to all these for the X-axis line, three feed mechanisms of Y-axis line and z axis are to prevent this tooth bar, produce backlash in the small gear.This commonly uses two disclosed feed mechanisms and utilizes each transmission one small gear of two motor to have functional that it designs really in transmission on the tooth bar, but because this two pinion is to be driven by a motor respectively, and this two pinion need be synchronized with and moves on the tooth row, so, and cause the disappearance of transmission efficiency easily because mechanism's power resources can't consistent Synchronous Transmission.Need utilize three feed mechanisms to arrange in pairs or groups simultaneously when next disappearance of commonly using two maximums is its mechanism driving motion and can reach elimination backlash purpose, so also can't be widely used on the various driving mechanisms on the aspect of implementing, therefore still having in the design need the improvement part.
Summary of the invention
The main purpose of the present invention provides a kind of backlash eliminating method and structure thereof of driving mechanism, it is that order utilizes gear operation to reach the mechanism of transmission purpose in the start process, can eliminate backlash really, promote the degree of accuracy of gear engagement, to promote transmission quality and efficient.
In order to reach above-mentioned effect, purpose, the backlash eliminating method of driving mechanism of the present invention and structure thereof mainly are by a mechanism body, a driving wheel, two swing arms, two followers, and two elastic components are formed.Wherein this mechanism body is provided with a spindle hole that installs for this driving wheel, and two adjacently be provided with the branched shaft hole of using for this two swing arms pivot group, and the two relative suitable places of outer side surfaces respectively establish a protruding pinna, between this protruding pinna and this two swing arm one elastic component is set.This two swing arm is after utilizing cover plate lid to establish, again by two locking bars wear in conjunction with, be positioned on this mechanism body, respectively this swing arm one end is formed with the hinge portion that just can be located in this branched shaft hole place, end is then offered a countershaft hole in addition, must utilize the solid follower of hinged arm pivot, and the suitable place of outer side surface that should protruding pinna then is convexly equipped with a location screw.This driving wheel is located in the spindle hole of this mechanism body, and contacts with this two followers engagement, and the outside then is convexly equipped with the lock-joining part of a plate-like, in order to the affixed power unit of being made up of members such as motor, speed reducers.And this two elastic component is located between the positioning screw hole of the protruding pinna of these mechanism body two sides and this two swing arm, and respectively this elastic component is adjusted members such as screw rod, apical axis and elastomer by one and formed, in order to a slow-action elastic force is bestowed this follower.In view of the above, make this two follower have the fulcrum of an elasticity stopper, and this fulcrum and permanent being positioned on this driving wheel and the straight line that the follower center of circle links to each other, use if driving mechanism is when the tooth bar top offset produces the backlash, respectively to be able to this hinge portion be that pivot point is drawn close to tooth bar to this follower, not only can eliminate the backlash, more can promote the degree of accuracy of gear transmission engagement, promote transmission efficiency.
Relevant the technology used in the present invention, means and effect thereof after lifting a preferred embodiment and cooperating graphic being described in more detail in, are believed the above-mentioned purpose of the present invention, structure and feature, when can by one deeply and concrete understanding.
Description of drawings
Fig. 1 is that general gear drive produces the backlash schematic representation.
Fig. 2 is first kind and commonly uses the creation stereo appearance figure.
Fig. 3 is first kind and commonly uses another stereo appearance figure of creation.
Fig. 4 is second kind of stereo appearance figure of commonly using creation.
Fig. 5 is a three-dimensional combination appearance figure of the present invention.
Fig. 6 is a perspective exploded view of the present invention.
Fig. 7 is a combination generalized section of the present invention.
Fig. 8 is another combination generalized section of the present invention.
Fig. 9 is the present invention's transmission embodiment schematic representation on linear gear rack.
Figure 10 is the present invention's transmission embodiment schematic representation on arc-shaped rack.
Drawing reference numeral explanation: mechanism body 10; Spindle hole 11; Branched shaft hole 12; Protruding pinna 13; Swing arm 20; 21 countershaft holes 22, hinge portion; Positioning screw hole 23; Driving wheel 30; Lock-joining part 31; Follower 40; Elastic component 50; Adjust screw rod 51; Apical axis 52; Elastomer 53; Set screw 54; Cover plate 61; Locking bar 62; Bearing 63; Hinged arm 64; Locking closure 65; Power unit 70; Motor 71; Speed reducer 72; Linear gear rack 81; Arc-shaped rack 82.
Embodiment
For making it can further understand structural design of the present invention and technology, sincerely cooperate graphic giving again to be illustrated in the back:
See also Fig. 5～shown in Figure 9, the backlash of driving mechanism of the present invention is eliminated structure, and its formation comprises a mechanism body 10, two swing arms 20, a driving wheel 30, two followers 40, and two elastic components 50 constitute, wherein:
This mechanism body 10 is the body member that a section generally is the Z font, its inner rim is equipped with one for the ccontaining spindle hole 11 of this driving wheel 30, and an outer side surface is formed with two adjacent branched shaft holes 12, use for this two swing arm 20 pivot groups, and the two relative suitable places of outer side surface respectively establish the protruding pinna 13 that an inner edge is hollow, cooperate this two swing arm 20 to connect this two elastic component 50 of group.
These two swing arms, 20 pivot groups are in adjacent branched shaft hole 12 places of this mechanism body 10 2, respectively these swing arm 20 1 ends are formed with the hinge portion 21 that is the major axis shape, just but pivot is placed in this branched shaft hole 12, in addition end then establishes one for the ccontaining countershaft hole 22 of this follower 40, and the suitable place of structure portion that outer side surface protrudes forms one for the fixing positioning screw hole 23 of these elastic component 50 1 ends.When this two swing arm 20 is assembled on this mechanism body 10, with be hinge portion 21 that forward and backward crossover mode as the X font makes the one end successively covers organize in this branched shaft hole 12 respectively, and after covering a cover plate 61 admittedly, utilize two locking bars 62 to wear respectively respectively again and lock behind these hinge portion 21 hollow inner edges, make this two swing arm 20 have the function of pivot pendulum start.
This driving wheel 30 is general gear part, be located in the spindle hole 11 of this mechanism body 10, and a side also convexes with the lock-joining part 31 of plate-like, in order to connect the power unit 70 that group is made up of members such as motor 71 and speed reducers 72, composition important document because of this power unit 70 is general known mechanism, repeats no more.
This two follower 40 also is general gear part, respectively these follower 40 hollow inner edges are provided with bearing 63, when it is placed in the countershaft hole 22, be to utilize a hinged arm 64 to wear the back toward other end to combine and locate, and make this follower 40 contact with driving wheel 30 do engagements with a locking closure 65 by countershaft hole 22 1 ends.
This two elastic component 50 is located at 23 of the positioning screw holes of the protruding pinna 13 of these mechanism body 10 2 sides and this two swing arm 20, respectively this elastic component 50 is to adjust screw rod 51 by one, apical axis 52, elastomer 53 members such as grade are formed, wherein these adjustment screw rod 51 1 end spiral shells are located at this positioning screw hole 23 places, end then protrudes this positioning screw hole 23 and these apical axis 52 butts in addition, this apical axis 52 generally is the T font, it is to contact with this adjustment screw rod 51 than great circle footpath one end, be placed on this protruding pinna 13 hollow inner edge places after end then wears this elastomer 53 in addition, make these elastomer 53 2 end branches be butted between this mechanism body 10 and the swing arm 20, further make respectively this swing arm 20 have a micro-elasticity swing effect.And when needing to adjust the pressure elasticity power of this elastomer 53, can utilize and screw or reach the position of this adjustment screw rod 51 of spiral shell pine, and for increasing the respectively steadiness of these elastic component 50 integral, flexible effort formations, in addition can in this positioning screw 23 for the outside of adjusting screw rod 51 spiral shell groups in addition again spiral shell establish a set screw 54, produce the unexpected turn situation that is shifted when the driving mechanism start to avoid this adjustments screw rod 51.
In view of the above, the above-mentioned member of mat is formed, make that this two follower 40 is a fulcrum with the hinge portion 21 of swing arm 20, this fulcrum and permanent being positioned on this driving wheel 30 and the straight line that follower 40 centers of circle link to each other, and have an automatic adjustment function of micro-elasticity pivot pendulum stopper, use if driving mechanism is when tooth bar 81,82 top offsets produce the backlash, this follower 40 is able to corresponding hinge portion 21 and draws close to tooth bar 81,82 for pivot point, not only can eliminate the backlash, more can promote the degree of accuracy of gear transmission engagement, promote transmission efficiency.
By above-mentioned explanation as can be known, the present invention makes these two followers, 40 pivot groups in swing arm 20, and respectively has fine motion pivot pendulum fulcrum, and mesh the technical characteristics that drives by a driving wheel 30 simultaneously, really can reach and eliminate the backlash, promote the degree of accuracy of gear transmission engagement, promote transmission efficiency.Please consult Fig. 9, shown in Figure 10 again, when structure characteristic of the present invention is applied to the transmission of mechanism, not only can be applicable to general linear gear rack 81, and more can be applicable to the arc-shaped rack 82 of tool angle, in the transmission because this two follower 40 be to drive simultaneously by driving wheel 30, so Synchronous Transmission that can not only be accurate, stable, and transmission usefulness also can promote relatively.On the elimination function as for backlash, because of this two follower 40 is to be that fulcrum is made active fine motion pivot pendulum with the hinge portion 21 of respectively this swing arm 20 at any time, so can when the gear mechanism transmission, eliminate the backlash that tooth and between cog produce because of any factor really, the present invention simultaneously also can be by the compression elasticity of adjusting this elastic component 50, the pivot swing that makes this two follower 40 eliminate backlash is done and can be done suitable adjustment along with the difference of mechanism driving environment, and has more practicability and progressive.
Claims (7)
1. the backlash eliminating method of a driving mechanism, it is characterized in that, it is to utilize the rotation of a motor driven one driving wheel, this driving wheel and engageable drive two followers, be to make this two follower have the fulcrum of an elasticity stopper, and this fulcrum and permanent being positioned on this driving wheel and the straight line that the follower center of circle links to each other.
2. according to the backlash eliminating method of the described driving mechanism of claim 1, it is characterized in that, wherein this driving wheel is the spindle hole place that is mounted on a mechanism body, and this driving wheel one wheel side also is convexly equipped with the lock-joining part of a plate-like, in order to connect the power unit that group is made up of members such as motor and speed reducers, this two follower then combines with mechanism body by two swing arms, respectively this swing arm one end is formed with the hinge portion of slotted hole shape, end is then offered a countershaft hole in addition, use for this follower ccontaining,, and by hinged arm pivot group location, and this end outside is fitted the place and is convexly equipped with formation one location screw; As for this mechanism body is to form two adjacent branched shaft holes in the upper limb outside, use for this two swing arm set and establish, and the suitable place of two opposite side faces also establishes a protruding pinna, in between the positioning screw hole of this protruding pinna and this two swing arm, establish an elastic component, when this two swing arm is assembled again, be make the one end with forward and backward crossover structure attitude the hinge portion respectively cover organize in this two branched shaft hole, hold the follower of pivot group then contact in addition with this driving wheel engagement, utilize a cover plate and locking bar to wear, cover again and consolidate.
3. according to the backlash eliminating method of the described rack gear of claim 2, it is characterized in that, wherein this elastic component is to adjust screw rod by one, member such as apical axis and elastomer is formed, this adjustment screw rod spiral shell is located at the positioning screw hole place of respectively this swing arm, and an end also protrudes this positioning screw hole, in order to connect to the end of this apical axis than the great circle footpath, and other end of this apical axis is placed in this protruding pinna after wearing this elastomer, make these elastomer two end branches be butted between this protruding pinna and positioning screw hole, further make respectively this swing arm have a micro-elasticity swing effect, when this elastomeric pressure elasticity power of need adjustment, by screwing or the position of this adjustment screw rod of spiral shell pine gets final product, and be to increase the integrally-built steadiness of this elastic component, this adjustments screw rod outside other again spiral shell establish a set screw, produce unexpected turn to avoid this adjustment screw rod.
4. the backlash of a driving mechanism is eliminated structure, it is characterized in that its formation comprises:
One mechanism body which is provided with a spindle hole and two adjacent branched shaft holes, use for a driving wheel and two swing arm pivot groups, and two relative suitable places, side respectively establishes a protruding pinna;
Two swing arms, the pivot group is in the branched shaft hole place of this mechanism body respectively, and respectively this swing arm one end is formed with the hinge portion that just can be located in this branched shaft hole place, and end is then offered a countershaft hole in addition, utilize the solid follower of hinged arm pivot, and to the suitable place of outer side surface that should protruding pinna and be convexly equipped with a location screw;
One driving wheel is located in the spindle hole of this mechanism body, and a side and with power unit winding as power resources;
Two followers are mounted on the countershaft hole place of respectively this swing arm respectively, and when this two swing arms pivot group during in the branched shaft hole place of this mechanism body, this two follower also contacts with this driving wheel engagement;
Two elastic components are located between the positioning screw hole of the protruding pinna of these mechanism body two sides and this two swing arm, in order to a slow-action elastic force is bestowed this follower;
In view of the above, make this two follower have the fulcrum of an elasticity stopper, and this fulcrum and permanent being positioned on this driving wheel and the straight line that the follower center of circle links to each other.
5. eliminate structure according to the backlash of the described driving mechanism of claim 4, it is characterized in that, wherein this two swing arm is after utilizing cover plate lid to establish, again by two locking bars wear its hinge portion in conjunction with, be positioned on this mechanism body.
6. eliminate structure according to the backlash of the described driving mechanism of claim 4, it is characterized in that wherein this power unit is made up of members such as motor, speed reducers, and the wheel side of this driving wheel is convexly equipped with lock-joining part and this power engine winding of a plate-like and consolidates.
7. eliminate structure according to the backlash of the described driving mechanism of claim 4, it is characterized in that, wherein this elastic component is to adjust screw rod by one, member such as apical axis and elastomer is formed, this adjustment screw rod spiral shell is located at the positioning screw hole place of respectively this swing arm, and an end also protrudes this positioning screw hole, in order to connect to the end of this apical axis than the great circle footpath, and other end of this apical axis is to be placed in this protruding pinna after wearing this elastomer, make these elastomer two end branches be butted between this protruding pinna and positioning screw hole, further make respectively this swing arm have a micro-elasticity swing effect, when this elastomeric pressure elasticity power of need adjustment, by screwing or the position of this adjustment screw rod of spiral shell pine gets final product, and be to increase the integrally-built steadiness of this elastic component, this adjustments screw rod outside other again spiral shell establish a set screw, produce unexpected turn to avoid this adjustment screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100803491A CN100485227C (en) | 2005-07-01 | 2005-07-01 | Transmission gear gap eliminating method and its structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100803491A CN100485227C (en) | 2005-07-01 | 2005-07-01 | Transmission gear gap eliminating method and its structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1892073A true CN1892073A (en) | 2007-01-10 |
| CN100485227C CN100485227C (en) | 2009-05-06 |
Family
ID=37597196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100803491A Expired - Fee Related CN100485227C (en) | 2005-07-01 | 2005-07-01 | Transmission gear gap eliminating method and its structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100485227C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009293A (en) * | 2010-05-31 | 2011-04-13 | 无锡恒富科技有限公司 | Vertically running gear for numerical control cutting machine |
| CN102312972A (en) * | 2011-08-23 | 2012-01-11 | 重庆大学 | High-accuracy adaptive anti-interference transmission device |
| CN102528515A (en) * | 2012-02-17 | 2012-07-04 | 崴力机电股份有限公司 | Power and servo combining mechanism of rotating device |
| CN102720827A (en) * | 2012-07-06 | 2012-10-10 | 浙江中控太阳能技术有限公司 | Backlash eliminating device of heliostat tracking system |
| CN103158024A (en) * | 2011-12-19 | 2013-06-19 | 沈阳理工大学 | Mechanism capable of adjusting transmission gap of gear rack |
| CN103821915A (en) * | 2014-01-28 | 2014-05-28 | 中捷大宇机械有限公司 | Servo-driving anti-backlash gear transmission box of embroidery machine |
| CN104457661A (en) * | 2014-04-01 | 2015-03-25 | 太原重工股份有限公司 | Detecting device capable of adjusting transmission gap and transmission gap adjusting mechanism |
| CN104942367A (en) * | 2014-03-30 | 2015-09-30 | 宁波德美锯业有限公司 | Novel saw cutting headpiece |
| CN105466385A (en) * | 2015-12-31 | 2016-04-06 | 北京经纬恒润科技有限公司 | Mounting structure for absolute position encoder and servo system |
| CN107366724A (en) * | 2017-09-13 | 2017-11-21 | 长沙学院 | A kind of gapless floating gear rack gearing |
| CN107956863A (en) * | 2016-10-14 | 2018-04-24 | 昆山金吉品机器有限公司 | The adjusting device for backlash of dual output transmission mechanism |
| CN116906550A (en) * | 2023-07-25 | 2023-10-20 | 缙云县帅马针车有限公司 | Double-gear transmission zero back clearance adjusting method |
-
2005
- 2005-07-01 CN CNB2005100803491A patent/CN100485227C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009293A (en) * | 2010-05-31 | 2011-04-13 | 无锡恒富科技有限公司 | Vertically running gear for numerical control cutting machine |
| CN102312972A (en) * | 2011-08-23 | 2012-01-11 | 重庆大学 | High-accuracy adaptive anti-interference transmission device |
| CN102312972B (en) * | 2011-08-23 | 2013-07-10 | 重庆大学 | High-accuracy adaptive anti-interference transmission device |
| CN103158024A (en) * | 2011-12-19 | 2013-06-19 | 沈阳理工大学 | Mechanism capable of adjusting transmission gap of gear rack |
| CN102528515A (en) * | 2012-02-17 | 2012-07-04 | 崴力机电股份有限公司 | Power and servo combining mechanism of rotating device |
| CN102528515B (en) * | 2012-02-17 | 2014-12-03 | 崴力机电股份有限公司 | Power and servo combining mechanism of rotating device |
| CN102720827B (en) * | 2012-07-06 | 2016-02-17 | 浙江中控太阳能技术有限公司 | A kind of heliostat tracking system backlash eliminating equipment |
| CN102720827A (en) * | 2012-07-06 | 2012-10-10 | 浙江中控太阳能技术有限公司 | Backlash eliminating device of heliostat tracking system |
| CN103821915A (en) * | 2014-01-28 | 2014-05-28 | 中捷大宇机械有限公司 | Servo-driving anti-backlash gear transmission box of embroidery machine |
| CN104942367A (en) * | 2014-03-30 | 2015-09-30 | 宁波德美锯业有限公司 | Novel saw cutting headpiece |
| CN104457661A (en) * | 2014-04-01 | 2015-03-25 | 太原重工股份有限公司 | Detecting device capable of adjusting transmission gap and transmission gap adjusting mechanism |
| CN104457661B (en) * | 2014-04-01 | 2017-02-15 | 太原重工股份有限公司 | Detecting device capable of adjusting transmission gap and transmission gap adjusting mechanism |
| CN105466385A (en) * | 2015-12-31 | 2016-04-06 | 北京经纬恒润科技有限公司 | Mounting structure for absolute position encoder and servo system |
| CN107956863A (en) * | 2016-10-14 | 2018-04-24 | 昆山金吉品机器有限公司 | The adjusting device for backlash of dual output transmission mechanism |
| CN107956863B (en) * | 2016-10-14 | 2023-06-30 | 昆山金吉品机器有限公司 | Backlash adjusting device of double-output transmission mechanism |
| CN107366724A (en) * | 2017-09-13 | 2017-11-21 | 长沙学院 | A kind of gapless floating gear rack gearing |
| CN116906550A (en) * | 2023-07-25 | 2023-10-20 | 缙云县帅马针车有限公司 | Double-gear transmission zero back clearance adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100485227C (en) | 2009-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100485227C (en) | Transmission gear gap eliminating method and its structure | |
| CN102297257B (en) | Planetary gear reducer with adjustable back lash | |
| US11358842B2 (en) | Thrust chain device | |
| KR101842918B1 (en) | Device for driving a rotary table of machin tool | |
| CN101761606B (en) | Silencing chain | |
| JP4151339B2 (en) | Slide mechanism and transport device using the same | |
| CN1145725C (en) | Driving device of sewing machine | |
| CN1190130C (en) | Reel for fishing | |
| CN2784672Y (en) | Double synchronous rotating worm and worm wheel pair mechanism | |
| CN2801325Y (en) | Variable speed feed device of pipe bending machine | |
| CN110645328B (en) | Spherical surface structure stepless speed change device | |
| CN2723759Y (en) | Rail structure for linear movement guide device | |
| CN211539348U (en) | Manual gear rolling machine | |
| CN208058543U (en) | A kind of construction searchlight of angle adjustable | |
| CN106337915B (en) | The steady speed reducer of trailing type of articulated robot | |
| CN213673076U (en) | Jig for machining automobile parts | |
| CN219093962U (en) | Novel laser engraving equipment is with multi-functional line rail module | |
| CN2855986Y (en) | Stairs of escalator or chain wheel of automatic pavement pedal chain | |
| CN220639042U (en) | Main transmission structure of multipoint cooperative servo drive press | |
| CN220134531U (en) | Adjustable anti-backlash precision speed reducer | |
| CN2455959Y (en) | Stepless speed shifting device for reducer gear | |
| CN212865212U (en) | Embroidery machine AT tooth form drive mechanism | |
| CN2605099Y (en) | Headstock box for stepless speed regulating lathe | |
| CN216519419U (en) | Compact worm and gear mechanism | |
| CN2788158Y (en) | Sinusoidal mechanism adjusting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20120701 |