CN105864396A - Gear clearance removing mechanism - Google Patents
Gear clearance removing mechanism Download PDFInfo
- Publication number
- CN105864396A CN105864396A CN201610277238.8A CN201610277238A CN105864396A CN 105864396 A CN105864396 A CN 105864396A CN 201610277238 A CN201610277238 A CN 201610277238A CN 105864396 A CN105864396 A CN 105864396A
- Authority
- CN
- China
- Prior art keywords
- gear
- little gear
- adjusting pin
- transmission shaft
- power transmission
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/18—Special devices for taking up backlash
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a gear clearance removing mechanism. A center hole of a second small gear is detachably fixed to a transmission shaft. The outer end of the upper half part of the second small gear is sleeved with a first small gear, and the first small gear is fixed to the upper end face of the lower half part of the second small gear through three or more first screws evenly arranged on the same circumference and two or more sets of adjusting mechanisms evenly arranged on the same circumference. The first small gear and the second small gear are the same in outer tooth number and shape and are located on the same circumference and installed in a relative deflection manner, wherein one of the small gears is engaged with a left tooth face of a large gear, and the other one of the small gears is engaged with a right tooth face of the large gear. Each set of adjusting mechanisms are formed in the manner that adjusting mechanisms which are composed of first adjusting pins, second adjusting pins and third screws and are the same in structure rotate along the transmission shaft. According to the gear clearance removing mechanism, even the distance between gear holes and gear roots of the gears is very small, clearance removing of a gear mechanism can still be conducted. The gear clearance removing mechanism is simple in structure, high in adjusting reliability, convenient to operate and wide in application range.
Description
Technical field
The present invention relates to a kind of gear clearance elimination mechanism.
Background technology
A pair gear without sideshake, but in practice to compensate the change in size caused due to processing, alignment error and variations in temperature, to prevent from being stuck, should must leave certain backlash in wheel coast side of tooth when engagement in theory.Gear drive is with the presence of sideshake, and sideshake is used for preventing from making the gear teeth block due to error and thermal deformation, and leaves space to the lubricating oil film between the flank of tooth.But sideshake brings idle running when reversion to the most again mechanism, makes mechanism not to be accurately positioned, so, in order to eliminating machine brings idle running to need to install anti-backlash mechanism when reversion.
Existing conventional anti-backlash mechanism is spring anti-backlash mechanism, this mechanism be utilize be arranged between two plate gears being fixed together by screw, two plate gears that each spring in three mounting grooves leaving each gear wheel bore to tooth root links together are simultaneously engaged on coupling gear.Wherein a plate gear is fixed with axle, engages with the side of coupling gear, and opposite side leaves sideshake；Another plate gear is empty set floating gear on axle, and it leaves sideshake with the side of coupling gear, and opposite side engages.Spring one end is fixed on the gear fixing with axle, and the other end is fixed on floating gear.When gear rotates forward, the engaging tooth of the gear fixing with axle works, and drives two plate gears to relatively rotate with coupling gear simultaneously；When gear inverts, the engaging tooth of floating gear sheet works, and drives two plate gears to relatively rotate with coupling gear simultaneously.What this structure was widely used in gear driving pair disappears in gap, and the turntable of some precision equipments is through this structure to be carried out disappearing gap.But owing to two plate gears are the deflection setting angles that the elastic force by spring regulates between two plate gears, so, spring steel wire itself needs certain rigidity, and spring profile is also required to certain diameter, and the volume causing spring is big, need the space taken big, when distance between wheel bore to tooth root is the least, such as less than 15mm, the spring that can accommodate cannot reach elastic force requirement, can not reach to regulate the demand of deflection setting angle between two plate gears, it is impossible to re-use spring and carry out disappearing gap.
Summary of the invention
The purpose of the present invention solves the above-mentioned problems in the prior art exactly, it is provided that even if the wheel bore of a kind of gear to the distance between tooth root the least time, can still provide for the gear clearance elimination mechanism of the gap that disappears of gear mechanism.
For achieving the above object, the technical solution of the present invention is: a kind of gear clearance elimination mechanism, it includes gear wheel, little gear I, little gear II, power transmission shaft, adjusting pin I and adjusting pin II；Little gear II centre bore is removably attached on power transmission shaft；Little gear I is enclosed within the outer end of little gear II first half, and is fixed on the upper surface of little gear II lower half by the screw I of be evenly arranged on same circumference more than three, the guiding mechanism more than two that is evenly arranged on same circumference；Little gear I is identical with shape with the external tooth number of teeth of little gear II, and is positioned on same circumference, relatively deflects installation, one of them and the left flank engagement of gear wheel, another and the right flank engagement of gear wheel；The guiding mechanism that structure that each group guiding mechanism is made up of with screw III adjusting pin I, adjusting pin II is identical rotates along power transmission shaft；The lower surface of adjusting pin I has one to tilt to power transmission shaft direction downwards or downwards to deviating from the inclined plane I that power transmission shaft direction tilts, and there is an and inclined plane II that inclination angle identical relative with inclined plane I upper surface of adjusting pin II；Adjusting pin II is fixed in the hole of little gear II, in the lower end in the hole that upper end probes into the little gear I leaving its gathering sill I；Adjusting pin I is placed in the hole of little gear I, and in the upper end in the hole that lower end probes into the little gear II leaving its gathering sill II, the inclined plane I of its lower end is placed in the inclined plane II of adjusting pin II upper end, and its upper end is pushed up solid by the screw III in the hole being placed in little gear I；Under the power effect of top, inclined plane I can be slided along inclined plane II；The sector on the central axis in the hole of little gear I and the hole of little gear II it is positioned at centered by the cross section of gathering sill I and gathering sill II.
The structure that little gear II centre bore described above is removably attached on power transmission shaft is: being cased with ringfeder on the power transmission shaft between power transmission shaft and little gear II centre bore, ringfeder is held out against fixing by the ring flange being fixed on little gear II lower surface.Little gear II is fixed on power transmission shaft by ringfeder tensioner, its convenient disassembly, and fixing reliability is high.
Adjusting pin II described above is fixed in the hole of little gear II by screw II.Convenient disassembly, fixing reliable.
Little gear I described above is identical with the thickness at the external tooth of little gear II.Thickness is identical, identical with the active force of gear wheel, and gear mechanism rotating is stable, little gear I, even wearing between little gear II and gear wheel, extends its service life.
Little gear I and little gear II are one group of gear train, and when this gear train uses as driving tooth wheels, power transmission shaft driven gear group rotates, gear set drive bull gear drive；When this gear train uses as driven tooth wheels, gear wheel driven gear group rotates, gear set drive drive axis.During installation, rotary screw III, adjustment adjusting pin I and the position of adjusting pin II, make the deflection of little gear I and little gear II install and be right up to one of them left flank engagement with gear wheel, another and the right flank engagement of gear wheel.After using a period of time, backlash between gear train and gear wheel becomes big, little gear I and little gear II can not again with the left flank of tooth and the right flank engagement of gear wheel, at this moment, unscrew each screw I, adjust each screw III to move down, screw III promotes adjusting pin I to move down, adjusting pin I holds out against adjusting pin II, inclined plane I downwards and moves in the horizontal direction along inclined plane II, thus drive adjusting pin I and adjusting pin II, along gathering sill I and gathering sill II, relatively slight deflection occurs, thus drive the little relatively small gear of gear I II relatively to deflect, again make one of them left flank engagement with gear wheel of little gear I and little gear II, another right flank engagement with gear wheel；Tighten each screw I.The volume that the guiding mechanism that the present invention is made up of adjusting pin I, adjusting pin II and screw III can do is the least, and if two groups of needs that just can meet adjustment；Even if so the wheel bore of gear to the distance between tooth root the least time, such as less than 15mm, can still provide for the gap that disappears of gear mechanism, its simple in construction, regulation reliability is high, easy to operate, applied widely.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the AA sectional view of Fig. 1；
Fig. 3 is the BB sectional view of Fig. 2.
Detailed description of the invention
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment includes gear wheel 7, little gear I 2, little gear II 3, power transmission shaft 5, adjusting pin I 9 and adjusting pin II 10.Little gear II 3 centre bore is removably attached on power transmission shaft 5；Its preferred structure is: be cased with ringfeder 12 on the power transmission shaft 5 between power transmission shaft 5 and little gear II 3 centre bore, and ringfeder 12 is held out against fixing by the ring flange 4 being fixed on little gear II 3 lower surface.Little gear I 2 is enclosed within the outer end of little gear II 3 first half, and is fixed on the upper surface of little gear II 3 lower half by be evenly arranged on same circumference six (may also be three, four, five, seven, eight etc.) screws I 1, two groups of guiding mechanisms such as (may also be three groups, four groups) being evenly arranged on same circumference.Little gear I 2 is identical with shape with the external tooth number of teeth of little gear II 3, and is positioned on same circumference；Little gear I 2 is relative with little gear II 3 deflects installation, one of them and the left flank engagement of gear wheel 7, another and the right flank engagement of gear wheel 7.It is further preferred that described little gear I is identical with the thickness at the external tooth of little gear II.The guiding mechanism that structure that each group guiding mechanism is made up of with screw III 11 adjusting pin I 9, adjusting pin II 10 is identical rotates along power transmission shaft 5.There is an inclined plane I 13 tilting downwards (may also be downwards to deviating from power transmission shaft direction) to power transmission shaft 5 direction the lower surface of adjusting pin I 9, and there is an and inclined plane II 14 that inclination angle identical relative with inclined plane I 13 upper surface of adjusting pin II 10.Adjusting pin II 10 is fixed in the hole of little gear II 3, in the lower end in the hole that upper end probes into the little gear I 2 leaving its gathering sill I 15；Adjusting pin I 9 is placed in the hole of little gear I 2, in the upper end in the hole that lower end probes into the little gear II 3 leaving its gathering sill II 16, the inclined plane I 13 of its lower end is placed in the inclined plane II 14 of adjusting pin II 10 upper end, and its upper end is pushed up solid by the screw III 8 in the hole being placed in little gear I 2.Under the power effect of top, inclined plane I 13 can be slided along inclined plane II 14.The sector on the central axis in the hole of little gear I 2 and the hole of little gear II 3 it is positioned at centered by the cross section of gathering sill I 15 and gathering sill II 16.
Certainly; the present invention also has other multiple example; in the case of present invention spirit and essence, those of ordinary skill in the art can make corresponding change and deformation according to the present invention, and these change accordingly and deform all should be within the scope of the invention as claimed.
Claims (5)
1. a gear clearance elimination mechanism, it is characterised in that: it includes gear wheel, little gear I, little gear II, power transmission shaft, adjusting pin I and adjusting pin II；Little gear II centre bore is removably attached on power transmission shaft；Little gear I is enclosed within the outer end of little gear II first half, and is fixed on the upper surface of little gear II lower half by the screw I of be evenly arranged on same circumference more than three, the guiding mechanism more than two that is evenly arranged on same circumference；Little gear I is identical with shape with the external tooth number of teeth of little gear II, and is positioned on same circumference, relatively deflects installation, one of them and the left flank engagement of gear wheel, another and the right flank engagement of gear wheel；The guiding mechanism that structure that each group guiding mechanism is made up of with screw III adjusting pin I, adjusting pin II is identical rotates along power transmission shaft；The lower surface of adjusting pin I has one to tilt to power transmission shaft direction downwards or downwards to deviating from the inclined plane I that power transmission shaft direction tilts, and there is an and inclined plane II that inclination angle identical relative with inclined plane I upper surface of adjusting pin II；Adjusting pin II is fixed in the hole of little gear II, in the lower end in the hole that upper end probes into the little gear I leaving its gathering sill I；Adjusting pin I is placed in the hole of little gear I, and in the upper end in the hole that lower end probes into the little gear II leaving its gathering sill II, the inclined plane I of its lower end is placed in the inclined plane II of adjusting pin II upper end, and its upper end is pushed up solid by the screw III in the hole being placed in little gear I；Under the power effect of top, inclined plane I can be slided along inclined plane II；The sector on the central axis in the hole of little gear I and the hole of little gear II it is positioned at centered by the cross section of gathering sill I and gathering sill II.
Gear clearance elimination mechanism the most according to claim 1, it is characterized in that: the structure that described little gear II centre bore is removably attached on power transmission shaft is: being cased with ringfeder on the power transmission shaft between power transmission shaft and little gear II centre bore, ringfeder is held out against fixing by the ring flange being fixed on little gear II lower surface.
Gear clearance elimination mechanism the most according to claim 1 and 2, it is characterised in that: described adjusting pin II is fixed in the hole of little gear II by screw II.
Gear clearance elimination mechanism the most according to claim 3, it is characterised in that: described little gear I is identical with the thickness at the external tooth of little gear II.
Gear clearance elimination mechanism the most according to claim 1 and 2, it is characterised in that: described little gear I is identical with the thickness at the external tooth of little gear II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277238.8A CN105864396A (en) | 2016-05-01 | 2016-05-01 | Gear clearance removing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277238.8A CN105864396A (en) | 2016-05-01 | 2016-05-01 | Gear clearance removing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105864396A true CN105864396A (en) | 2016-08-17 |
Family
ID=56628744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610277238.8A Pending CN105864396A (en) | 2016-05-01 | 2016-05-01 | Gear clearance removing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864396A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4805475A (en) * | 1987-07-17 | 1989-02-21 | Lockheed Corporation | Anti-backlash gear assembly |
| JPH02120553A (en) * | 1988-10-28 | 1990-05-08 | Aiseru Kk | Gear device |
| CN101413577A (en) * | 2008-11-24 | 2009-04-22 | 南京思索数控弧齿机床有限公司 | Helical gear and gap eliminating structure |
| CN202228639U (en) * | 2011-08-30 | 2012-05-23 | 浙江瑞远机床有限公司 | Novel gear backlash elimination structure |
| CN102506150A (en) * | 2011-10-20 | 2012-06-20 | 天津商业大学 | Stacked gear structure with side clearance removal through elasticity |
| CN202360708U (en) * | 2011-12-15 | 2012-08-01 | 中冶陕压重工设备有限公司 | Lateral clearance adjusting device |
| CN203272502U (en) * | 2013-04-16 | 2013-11-06 | 圣东尼（上海）针织机器有限公司 | Fastening and connecting structure of gears and transmission shaft of knitting machine |
| CN205745180U (en) * | 2016-05-01 | 2016-11-30 | 保定标正机床有限责任公司 | A kind of gear clearance elimination mechanism |
-
2016
- 2016-05-01 CN CN201610277238.8A patent/CN105864396A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4805475A (en) * | 1987-07-17 | 1989-02-21 | Lockheed Corporation | Anti-backlash gear assembly |
| JPH02120553A (en) * | 1988-10-28 | 1990-05-08 | Aiseru Kk | Gear device |
| CN101413577A (en) * | 2008-11-24 | 2009-04-22 | 南京思索数控弧齿机床有限公司 | Helical gear and gap eliminating structure |
| CN202228639U (en) * | 2011-08-30 | 2012-05-23 | 浙江瑞远机床有限公司 | Novel gear backlash elimination structure |
| CN102506150A (en) * | 2011-10-20 | 2012-06-20 | 天津商业大学 | Stacked gear structure with side clearance removal through elasticity |
| CN202360708U (en) * | 2011-12-15 | 2012-08-01 | 中冶陕压重工设备有限公司 | Lateral clearance adjusting device |
| CN203272502U (en) * | 2013-04-16 | 2013-11-06 | 圣东尼（上海）针织机器有限公司 | Fastening and connecting structure of gears and transmission shaft of knitting machine |
| CN205745180U (en) * | 2016-05-01 | 2016-11-30 | 保定标正机床有限责任公司 | A kind of gear clearance elimination mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2418213C2 (en) | Unit of worm gear with race for pins | |
| US20210396376A1 (en) | Stage Light Using Gear To Drive Light Head To Rotate | |
| TWM572942U (en) | Double row hobbing cam transmission structure | |
| CN205745180U (en) | A kind of gear clearance elimination mechanism | |
| CN112443638B (en) | Speed variator | |
| KR101877509B1 (en) | Method and device for adjusting the play of a gear transmission | |
| CN105864396A (en) | Gear clearance removing mechanism | |
| CN110510338B (en) | Damping rotation gear tooth driving wheel | |
| CN102797764A (en) | Slide block coupling for angle transmission | |
| CN110848273A (en) | Precision coupling device for roller way transmission shaft of glass annealing kiln | |
| EP3480014B1 (en) | Printing machine provided with plate cylinder driving devices | |
| CN101670545B (en) | Self-compensating rotary angle device for dicing saw | |
| CN102975105A (en) | Self compensating angle device of cutting machine | |
| KR200496461Y1 (en) | Apparatus for transferring substrate | |
| CN208106923U (en) | A kind of positioning pin of adjustable diameter | |
| CN113175509A (en) | Synchronous rotary friction transmission mechanism of gear lapping device | |
| US3144784A (en) | Centering of rotary members | |
| CN216328064U (en) | Guide sleeve and bolt tightening device | |
| CN220523195U (en) | Rolling brush transmission device and cleaning machine | |
| CN206036181U (en) | Novel chain wheel | |
| CN219648709U (en) | Headstock structure of machine tool | |
| CN110142468B (en) | Fixing structure for gear hub milling three-groove | |
| CN211501390U (en) | High-durability coupling | |
| CN213655642U (en) | Adjustable synchronous belt pulley | |
| CN202811888U (en) | Sliding block coupler used for angle transfer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |