CN2522674Y - Back clearance removing structure of double pinion and gear row engagement - Google Patents
Back clearance removing structure of double pinion and gear row engagement Download PDFInfo
- Publication number
- CN2522674Y CN2522674Y CN 01275241 CN01275241U CN2522674Y CN 2522674 Y CN2522674 Y CN 2522674Y CN 01275241 CN01275241 CN 01275241 CN 01275241 U CN01275241 U CN 01275241U CN 2522674 Y CN2522674 Y CN 2522674Y
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- CN
- China
- Prior art keywords
- driving mechanism
- belt
- pinion
- gauged
- sawtooth
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- 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
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Abstract
The utility model relates to a back clearance removing structure of double pinion and gear row engagement which mainly comprises a fixed board, a driving mechanism, two eccentric rolling wheels, two small gear transmission mechanisms and a gauged belt and so on; proper positions of the fixed board are respectively provided with the driving mechanism and two small gear transmission mechanisms; the top end of the axostyle of the mechanisms are respectively provided with a gauged belt wheel, which is jacketed by a gauged belt; the external sides of the gauged belt arranged between the driving mechanism and the small gear transmission mechanism are respectively provided with an eccentric rolling wheel so as to generate proper amount of tensile force when the gauged belt is crushed. The tensile force generated from the crushing of the gauged belt is transferred to the small gears of the two small gear transmission mechanisms so as to endow the hackles of the tooth row with reversed and constant unilateral close meshing state. In this way, the back clearance generated during the meshing of the two sawtooth is removed. The utility model enables the meshing of the sawtooth to be of no clearance no matter for forward rotation or reversed rotation. Therefore, the sliding of the sawtooth is smooth.
Description
Technical field
The utility model relates to a kind of gear and tooth row meshing engagement structure, and the back clearance of particularly a kind of double pinion and tooth row engagement is eliminated structure.Be the tension force that a kind of two small gears utilize time rule belt to produce, and can form reverse monolateral tight engagement state, so that unlikely generation back clearance and causing has some setbacks or loosening phenomenon in sliding motion with the tooth row of engagement or the sawtooth of gearwheel.
Background technique
Look at present general mechanical component and on body, produce the slippage action, its structure mainly is that tooth row is set on body, and installing small gear and tooth row meshes on member, utilizes that small gear just is being, reverse rotation, and reaches this member produces sliding motion back and forth on body purpose.Small gear is just producing, the structure of reverse rotation yet this kind allows, normally at the wheel shaft the other end installing gear and actuation gear engagement of small gear, utilize this actuation gear just, reverse, with the driving pinion generation just, reverse rotation.Only each gear of this kind nationality is engaged with each other and produces the structure of sliding motion with driving component, its shortcoming is that each gear meshing is not tight, that is gear and gear meshing have the gap usually, therefore, when gear starts or change sense of rotation, all can produce stagnation behavior, have some setbacks in the member slippage and be easy to generate loosening phenomenon and cause.In view of this this creator is studied improvement meticulously, develops finally this creation, in the hope of improving above-mentioned shortcoming.
Summary of the invention
Main purpose of the present utility model is to be to provide the back clearance of a kind of double pinion and tooth row engagement to eliminate structure.When solution is engaged with each other driving component generation sliding motion at each gear, because each gear meshing is not tight, that is gear and gear meshing have the gap, make when gear starts or change sense of rotation, all can produce stagnation behavior, have some setbacks in the member slippage and be easy to generate loosening phenomenon and cause.
The purpose of this utility model is achieved in that it is mainly by a fixed plate, a driving mechanism, two eccentric rollers, two pinion driving mechanism and advise part such as belt for the moment and constituted; It mainly is to utilize on this fixed plate appropriate location to install a driving mechanism and two pinion driving mechanism respectively, advise for the moment belt pulley and be provided with respectively on the axostylus axostyle top of this mechanism, and on each time rule belt pulley, be nested with and advise belt for the moment, and the rule belt outside is provided with an eccentric roller respectively when driving mechanism and pinion drive are inter-agency, the rule belt is to produce suitable tension force when using extruding, so that the small gear that the tension force of rule belt is given this two driving mechanism when utilizing forms oppositely the sawtooth of tooth row respectively and permanently is monolateral tight engagement state, use and eliminate the back clearance that two sawtooth are produced in engagement.
The utility model has the advantages that: utilize the axostylus axostyle top of this driving mechanism and two pinion driving mechanism to install respectively and advise for the moment belt pulley, advise for the moment belt in order to being nested with, in order to do the mat eccentric roller time rule belt is done suitably extruding (or tension), the rule belt produces tension force when making, cause the time rule belt pulley of this two pinion driving mechanism to produce reversal interlocking relay respectively, and then make the sawtooth of small gear and the sawtooth of tooth row form reverse monolateral engagement, can eliminate the back clearance that two sawtooth produce in engagement.The engagement of sawtooth no matter just, reverse rotation, permanent keep monolateral tight contact and do not have back clearance and produce, so its slip has very level and smooth effect smoothly.
Description of drawings
Fig. 1 is a combination schematic perspective view of the present utility model.
Fig. 2 is an elevated bottom perspective schematic representation of the present utility model.
Fig. 3 is a combination schematic top view of the present utility model.
Fig. 4 is the decomposition and combination schematic perspective view of the utility model pinion drive mechanism.
Fig. 5 is that the utility model two pinion and tooth row form reverse monolateral mesh schematic representation.
Fig. 6 is another embodiment's schematic perspective view of the utility model.
Fig. 7 is another embodiment's schematic top view of the utility model.
The figure number explanation:
1 fixed plate
Rule belt pulley during 2 driving mechanisms, 21 live axles 22
3 eccentric rollers
4 eccentric rollers
5 pinion drive mechanisms, 51 small gears, 511 gear shafts
512 adjust piece 52 bearings 53 axle sleeves
Rule belt pulley during 6 pinion drive mechanisms 61 small gears 64
65 exempt from the key axle bush
7 o'clock rule belts
8 tooth rows
Embodiment
Now the utility model structure, feature and effect thereof are cooperated the appended graphic back that is described in more detail in:
As shown in Figure 1, the back clearance of the utility model double pinion and tooth row engagement is eliminated structure, its mainly be by a fixed plate 1, a driving mechanism 2, two eccentric rollers 3,4, two pinion driving mechanism 5,6 and for the moment now part such as belt 7 constituted.Wherein: this fixed plate 1 is a metal plate, is provided with several axis holes in plate body appropriate location system, can supply the wheel shaft of a driving mechanism 2, two eccentric rollers 3,4 and two pinion driving mechanism 5,6 to be nested with combination respectively.
This two eccentric roller 3,4, roller for the wheel eccentric shaft, it is to be located at driving mechanism 2 and two pinion driving mechanism 5, between 6, and make it lay respectively at driving mechanism 2 and two pinion driving mechanism 5,6 time rule belt 7 outsides that are nested with, be eccentric structure to look into this eccentric roller axle, and can adjust this eccentric roller 3,4 pairs should the time advise belt 7 and give suitable extruding, rule belt 7 produces suitable tension force when making this, the tension force that produces in order to time spent rule belt is given the time rule belt pulley 54 on two pinion driving mechanism top, 64 produce counterclockwise and pulling force (as shown in Figure 3) clockwise respectively, and then make the small gear 51 of this driving mechanism end, 61 produce reverse monolateral engagement (as shown in Figure 5) to the sawtooth of tooth row respectively.
Two pinion driving mechanism 5,6 for having two driving mechanisms of same configuration, is to be located at this fixed plate 1 opposite side appropriate location side by side.As shown in Figure 4, its mainly be respectively by a small gear 51, two bearings 52, an axle sleeve 53, advise belt pulley 54 and for the moment and exempt from part such as key axle bush 55 and constituted.Wherein, this small gear 51 is and tooth row 8 engagements (as shown in Figure 2), and the gear shaft 511 of this small gear can be nested with for two bearings 52 and axle sleeve 53, using installing is fixed on the fixed plate 1, the end that this gear shaft 511 stretches out fixed plate 1 surface then can be nested with advises belt pulley 54 for the moment, and between time rule belt pulley 54 and gear shaft 511, be nested with one and exempt from key axle bush 55, mat screws the clamp screw of exempting from key axle bush 55, can make exempt from the key axle bush to gear shaft 511 in time rule belt pulley 54 wheel hub inner faces produce the power of shoring, and the time rule belt pulley 54 that allows this is in conjunction with being fixed on gear shaft 511 ends, in order to do for advising belt 7 sheathed a period of time, just be with driving pinion 51, reverse rotation.The end face of this gear shaft 511 convexes with one again and adjusts piece 512 again, this adjusts piece can supply adjustment instrument fit, gear shaft 511 with the time rule belt pulleys 54 separated states under, can be used to adjust small gear 51 and be best monolateral engagement (as shown in Figure 5) with tooth row 8, promptly the sawtooth of the sawtooth of this two pinion 51,61 and tooth row 8 is to be reverse monolateral engagement.Mat is exempted from key axle bush 55 and it combine with time rule belt pulley 54 fix and locate then.At this moment, the time rule belt 7 of rule on the belt pulley 54 when being set in, can utilize the not equidistant principle of eccentric roller wheel face and core wheel, adjust the eccentric roller angle, rule belt 7 suitable pressure when giving this, rule belt 7 produces suitable tension force in the time of then can making this, and should the time advise the tension force that belt 7 is produced, will produce the pulling force of different direction to the time rule belt pulley 54,64 of these two groups of pinion drive mechanisms 5,6 respectively.That is time rule belt pulley 54 produced the pulling force of anticlockwises, rule belt pulley 64 generation pulling force (as shown in Figure 3) clockwise then during to another.Make the sawtooth perseverance of the terminal two pinion 51,61 of driving mechanism produce reverse monolateral engaging pressure (as shown in Figure 5) to tooth row 8 sawtooth.So no matter this two pinion 51,61 is forward or reverse rotation all keeps reverse monolateral engagement to the sawtooth perseverance of tooth row 8, so, the engagement of two sawtooth no matter just, reverse rotation, permanent keep oppositely monolateral tight contact, produce from no back clearance, so its slip is very level and smooth naturally smooth and easy.
As previously mentioned, the utility model is time rule belts 7 arranged outside two eccentric rollers 3,4 54,64 of the time rule belt pulleys of driving mechanism 2 and two pinion driving mechanism, in order to do time rule belt 7 is done suitably extruding, produce the structure of suitable tension force with the time rule belt that causes this, also can only utilize an eccentric roller 3 to be located at 54,64 appropriate locations of time rule belt pulley of driving mechanism 2 and two pinion driving mechanism, the time rule belts 7 then from this two pinion driving mechanism the time 54,64 of rule belt pulleys by and be nested with on this eccentric roller 3 (shown in Fig. 6,7).But the adjustment of same this eccentric roller 3 of mat, and time rule belt 7 is produced the effect that strains at, therefore, this kind structure has equally advises the effect that belt produces suitable tension force when allowing, and the time rule belt pulley 54,64 that makes this two gear drive produces the opposite direction pulling force respectively, the sawtooth perseverance that causes the terminal small gear 51,61 of this two driving mechanism produces reverse monolateral engaging pressure to the sawtooth of tooth row 8, so the engagement of its sawtooth no matter just, reverse rotation, perseverance keeps monolateral tight contact and does not have the back clearance generation, has very level and smooth effect smoothly equally so it slides.
Claims (3)
1. the back clearance of double pinion and tooth row engagement is eliminated structure, and it mainly is by a fixed plate, a driving mechanism, two eccentric rollers, two pinion driving mechanism and advises part such as belt for the moment and constituted; It is characterized in that utilizing 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.
2. the back clearance of double pinion according to claim 1 and tooth row engagement is eliminated structure, it is characterized in that the small gear of this pinion drive mechanism, and its gear shaft end face convexes with one and adjusts piece, and gear shaft with the time advise and then be nested with one between the belt pulley and exempt from the key axle bush.
3. the back clearance of double pinion according to claim 1 and tooth row engagement is eliminated structure, it is characterized in that appropriate location between the time rule belt pulley of driving mechanism and two pinion driving mechanism, also an eccentric roller can only be set, time rule belt then from the two pinion driving mechanism the time rule belt pulleys between by and be nested with on this eccentric roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275241 CN2522674Y (en) | 2001-11-30 | 2001-11-30 | Back clearance removing structure of double pinion and gear row engagement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275241 CN2522674Y (en) | 2001-11-30 | 2001-11-30 | Back clearance removing structure of double pinion and gear row engagement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522674Y true CN2522674Y (en) | 2002-11-27 |
Family
ID=33679708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01275241 Expired - Fee Related CN2522674Y (en) | 2001-11-30 | 2001-11-30 | Back clearance removing structure of double pinion and gear row engagement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522674Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425650A (en) * | 2011-11-14 | 2012-04-25 | 吴瑜华 | Gear and rack transmission device capable of eliminating wearing clearance |
| CN102619940A (en) * | 2012-04-16 | 2012-08-01 | 爱克(苏州)机械有限公司 | Speed reducer free of back clearance |
| CN103939592A (en) * | 2014-04-10 | 2014-07-23 | 沈阳广达科技发展有限公司 | Double gear and rack drive synchronous belt automatic anti-backlash device |
-
2001
- 2001-11-30 CN CN 01275241 patent/CN2522674Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425650A (en) * | 2011-11-14 | 2012-04-25 | 吴瑜华 | Gear and rack transmission device capable of eliminating wearing clearance |
| CN102425650B (en) * | 2011-11-14 | 2014-08-13 | 吴瑜华 | Gear and rack transmission device capable of eliminating wearing clearance |
| CN102619940A (en) * | 2012-04-16 | 2012-08-01 | 爱克(苏州)机械有限公司 | Speed reducer free of back clearance |
| CN102619940B (en) * | 2012-04-16 | 2013-12-11 | 爱克(苏州)机械有限公司 | Speed reducer free of back clearance |
| CN103939592A (en) * | 2014-04-10 | 2014-07-23 | 沈阳广达科技发展有限公司 | Double gear and rack drive synchronous belt automatic anti-backlash device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |