CN104121355A - Gear mechanism capable of eliminating position feedback clearance - Google Patents
Gear mechanism capable of eliminating position feedback clearance Download PDFInfo
- Publication number
- CN104121355A CN104121355A CN201310150958.4A CN201310150958A CN104121355A CN 104121355 A CN104121355 A CN 104121355A CN 201310150958 A CN201310150958 A CN 201310150958A CN 104121355 A CN104121355 A CN 104121355A
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- China
- Prior art keywords
- position feedback
- pinion
- gear
- gear mechanism
- master gear
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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
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
-
- 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
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
- F16H2057/128—Arrangements for adjusting or for taking-up backlash not provided for elsewhere using axial positioning of gear wheel with addendum modification on gear width, i.e. backlash is compensated by axial positioning of a slightly conical gear wheel
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention belongs to gear mechanisms and particularly relates to a gear mechanism capable of eliminating a position feedback clearance. The gear mechanism capable of eliminating the position feedback clearance comprises a main gear, a secondary gear, a ring spring, a hinge pin and a locating screw. The gear mechanism capable of eliminating the position feedback clearance has the advantages that after the gear mechanism is mounted in a servo mechanism, a servo mechanism position feedback device is connected with the hinge pin 4 of the gear mechanism; in the operating process, under the action of twisting force of the ring spring 3, two meshed teeth of the gear mechanism are closely attached to each other in the transmission process, the return difference caused by gear backlash is eliminated, then the position feedback clearance is eliminated, and the position feedback accuracy of the servo mechanism is improved.
Description
Technical field
The invention belongs to gear mechanism, be specifically related to a kind of gear mechanism of eliminating position feedback gap.
Background technique
Position feedback device is the significant components of electric servomechanism, and its feedback accuracy directly affects the transmission performance of servomechanism.Usining in the servomechanism of gear transmission as position feedback, backlash can cause that gear transmission produces return difference, thereby causes position feedback precision to reduce.For addressing this problem, conventional method is for being used backlash gear mechanism to eliminate return difference.And traditional backlash gear mechanism stock size is larger, cannot meet electric servomechanism requirement.Therefore, need the little and significant gear mechanism of gap effect that disappears of a kind of size of design, be used for eliminating position feedback gap.
Summary of the invention
The object of the invention is, for the larger-size defect of currently available technology backlash gear mechanism, provides a kind of gear mechanism of eliminating position feedback gap.
The present invention is achieved in that a kind of gear mechanism of eliminating position feedback gap, wherein, comprises master gear, pinion, ring spring, bearing pin and positioning screwn.
A kind of gear mechanism of eliminating position feedback gap as above, wherein, described bearing pin is multidiameter shaft constitutional detail, the multidiameter shaft of bearing pin comprises two main external cylindrical surfaces, the external cylindrical surface of below is corresponding with the clear size of opening of pinion, the external cylindrical surface of top is corresponding with the clear size of opening of master gear, and the through hole that the external cylindrical surface of top passes master gear stretches out.
A kind of gear mechanism of eliminating position feedback gap as above, wherein, described pinion is the disc parts with through hole, on pinion, be provided with a preformed hole corresponding to positioning screwn, with a preformed hole corresponding with ring spring, the center of pinion arranges the circular hole corresponding with bearing pin outermost surface round platform size.
A kind of gear mechanism of eliminating position feedback gap as above, wherein, described master gear is also the disc parts with through hole, different from pinion, the core of master gear is boss, boss be shaped as hexgonal structure, boss below forms a cavity, this cavity is used for placing ring spring, and an arc-shaped slot is set on the boss of master gear, and the position of this arc-shaped slot is corresponding with the position of the corresponding preformed hole of positioning screwn with on pinion; A preformed hole corresponding with ring spring is set on the boss of master gear; Master gear boss center arrange with bearing pin above circular hole corresponding to external cylindrical surface size.
A kind of gear mechanism of eliminating position feedback gap as above, wherein, described positioning screwn stretches into the preformed hole on pinion through the arc-shaped slot on master gear boss.
The invention has the beneficial effects as follows: this gear mechanism packs into after servomechanism, servo sector position feedback means is connected with 4 bearing pins of gear mechanism.In working procedure, due to the twisting force of 3 ring springs, two teeth that gear mechanism is meshed in transmission process are fitted tightly, eliminated the return difference being caused by backlash, and then eliminated position feedback gap, improved servo sector position feedback accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gear mechanism in the position feedback the eliminated gap that provides of the application;
Fig. 2 be in Fig. 1 A to tangent plane structural representation.
In figure: 1. master gear, 2. pinion, 3. ring spring, 4. bearing pin, 5. positioning screwn.
Fig. 3 is the rigging position schematic diagram of the gear mechanism in the position feedback the eliminated gap that provides of the application.
In figure: 1. master gear, 2. pinion, 3. ring spring, 4. bearing pin, 5. positioning screwn.
Embodiment
As shown in Figures 1 and 2, a kind of gear mechanism of eliminating position feedback gap, comprises master gear 1, pinion 2, ring spring 3, bearing pin 4 and positioning screwn 5.
Described bearing pin 4 is multidiameter shaft constitutional detail, the multidiameter shaft of bearing pin 4 comprises two main external cylindrical surfaces, the external cylindrical surface of below is corresponding with the clear size of opening of pinion 2, and the external cylindrical surface of top is corresponding with the clear size of opening of master gear 1, and the through hole that the external cylindrical surface of top passes master gear 1 stretches out.
Described pinion 2 is the disc parts with through hole, on pinion 2, be provided with one with the corresponding preformed hole of positioning screwn 5, an and preformed hole corresponding with ring spring 3, the center of pinion 2 arranges the circular hole corresponding with bearing pin 4 outermost surface round platform sizes.
Described master gear 1 is also the disc parts with through hole, different from pinion 2, and the core of master gear 1 is boss, boss be shaped as hexgonal structure, boss below forms a cavity, this cavity is used for placing ring spring 3.An arc-shaped slot is set on the boss of master gear 1, and the position of this arc-shaped slot is corresponding with the position of positioning screwn 5 corresponding preformed holes with on pinion 2; A preformed hole corresponding with ring spring 3 is set on the boss of master gear 1; Master gear 1 boss center arrange with bearing pin 4 above circular hole corresponding to external cylindrical surface size.
Described positioning screwn 5 stretches into the preformed hole on pinion 2 through the arc-shaped slot on master gear 1 boss.
The requirement that above-mentioned part adds man-hour is respectively: master gear 1 and pinion 2 are produced by combination processing pairing, to guarantee transmission accuracy; Ring spring 3 is processed by 3/4 circle steel wire, and simple in structure, size is little, and torsion is large; Master gear 1 and pinion 2 are processed respectively two through holes and are used for installing ring spring 3, and this hole can be used as the positioning pin hole that combination adds man-hour simultaneously; Bearing pin 4 is multidiameter shaft structure, and adopts interference fit between master gear 1, and adopts Spielpassung between pinion 2.
The equipment process of above-mentioned part is roughly as follows: first ring spring 3 is packed between master gear 1 and pinion 2 by two through holes respectively; Then pack together bearing pin 4 into, during assembling, utilize frock to guarantee that the axial clearance between master gear 1 and pinion 2 is 0.3～0.5mm, to guarantee that pinion 2 rotates flexibly; According to gear mechanism actual conditions, pinion is rotated to an angle to guarantee that ring spring torsion is suitable, then with positioning screwn, master gear and pinion are fixed; After gear mechanism packs servomechanism into, positioning screwn is taken out, now due to the twisting force of ring spring 3, two teeth that gear mechanism is meshed in transmission process are fitted tightly, thereby eliminated the return difference being caused by backlash, and then eliminated position feedback gap, improved servo sector position feedback accuracy.
Claims (5)
1. can eliminate the gear mechanism in position feedback gap, it is characterized in that: comprise master gear (1), pinion (2), ring spring (3), bearing pin (4) and positioning screwn (5).
2. a kind of gear mechanism of eliminating position feedback gap as claimed in claim 1, it is characterized in that: described bearing pin (4) is multidiameter shaft constitutional detail, the multidiameter shaft of bearing pin (4) comprises two main external cylindrical surfaces, the external cylindrical surface of below is corresponding with the clear size of opening of pinion (2), the external cylindrical surface of top is corresponding with the clear size of opening of master gear (1), and the through hole that the external cylindrical surface of top passes master gear (1) stretches out.
3. a kind of gear mechanism of eliminating position feedback gap as claimed in claim 2, it is characterized in that: described pinion (2) is the disc parts with through hole, on pinion (2), be provided with one with the corresponding preformed hole of positioning screwn (5), with a preformed hole corresponding with ring spring (3), the center of pinion (2) arranges the circular hole corresponding with bearing pin (4) outermost surface round platform size.
4. a kind of gear mechanism of eliminating position feedback gap as claimed in claim 3, it is characterized in that: described master gear (1) is also the disc parts with through hole, different from pinion (2) is, the core of master gear (1) is boss, boss be shaped as hexgonal structure, boss below forms a cavity, this cavity is used for placing ring spring (3), an arc-shaped slot is set on the boss of master gear (1), and the position of this arc-shaped slot is upper corresponding with the position of the corresponding preformed hole of positioning screwn (5) with pinion (2); A preformed hole corresponding with ring spring (3) is set on the boss of master gear (1); The circular hole corresponding with the external cylindrical surface size of bearing pin (4) top is set at master gear (1) boss center.
5. a kind of gear mechanism of eliminating position feedback gap as claimed in claim 4, is characterized in that: described positioning screwn (5) stretches into the preformed hole on pinion (2) through the arc-shaped slot on master gear (1) boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310150958.4A CN104121355A (en) | 2013-04-27 | 2013-04-27 | Gear mechanism capable of eliminating position feedback clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310150958.4A CN104121355A (en) | 2013-04-27 | 2013-04-27 | Gear mechanism capable of eliminating position feedback clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121355A true CN104121355A (en) | 2014-10-29 |
Family
ID=51766900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310150958.4A Pending CN104121355A (en) | 2013-04-27 | 2013-04-27 | Gear mechanism capable of eliminating position feedback clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121355A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523680A (en) * | 2016-12-09 | 2017-03-22 | 广东肇庆西江机械制造有限公司 | Backlash eliminating structure applied to wide-width seven-layer high-speed paperboard production line |
| CN109870077A (en) * | 2017-12-05 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of servo-operated mechanism position feedback device |
| CN110100120A (en) * | 2016-12-22 | 2019-08-06 | 西门子股份公司 | Bevel Gear Transmission motor |
| CN110886836A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Double-channel signal output's angle displacement sensor gear transmission structure |
| CN117989306A (en) * | 2024-04-03 | 2024-05-07 | 中国重型机械研究院股份公司 | Device and method for eliminating side gap of synchronous gear of flying shear |
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| RU2020338C1 (en) * | 1991-06-28 | 1994-09-30 | Всероссийский научно-исследовательский институт "Сигнал" | Method for assembly of gear wheels |
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| CN201277314Y (en) * | 2008-08-05 | 2009-07-22 | 吕清波 | Duplicate gear apparatus for reducing gear transmission noise |
| CN101915297A (en) * | 2010-07-26 | 2010-12-15 | 国营长空精密机械制造公司 | Torsional spring type backlash gear mechanism |
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2013
- 2013-04-27 CN CN201310150958.4A patent/CN104121355A/en active Pending
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| RU2020338C1 (en) * | 1991-06-28 | 1994-09-30 | Всероссийский научно-исследовательский институт "Сигнал" | Method for assembly of gear wheels |
| CN1410842A (en) * | 2001-10-10 | 2003-04-16 | 佳能株式会社 | Picture forming apparatus and driver of picture forming mechanism thereof |
| CN2519868Y (en) * | 2001-10-31 | 2002-11-06 | 虹光精密工业股份有限公司 | Composite gear |
| CN2830796Y (en) * | 2005-08-05 | 2006-10-25 | 江门联和发动机有限公司 | Combined balance shaft bearing |
| CN101245844A (en) * | 2008-03-04 | 2008-08-20 | 浙江大学 | Contra-rotation gapless driven interlocking tooth synchronous pulley component |
| CN201277314Y (en) * | 2008-08-05 | 2009-07-22 | 吕清波 | Duplicate gear apparatus for reducing gear transmission noise |
| CN101915297A (en) * | 2010-07-26 | 2010-12-15 | 国营长空精密机械制造公司 | Torsional spring type backlash gear mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523680A (en) * | 2016-12-09 | 2017-03-22 | 广东肇庆西江机械制造有限公司 | Backlash eliminating structure applied to wide-width seven-layer high-speed paperboard production line |
| CN110100120A (en) * | 2016-12-22 | 2019-08-06 | 西门子股份公司 | Bevel Gear Transmission motor |
| CN110100120B (en) * | 2016-12-22 | 2022-05-06 | 西门子股份公司 | Bevel gear drive motor |
| CN109870077A (en) * | 2017-12-05 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of servo-operated mechanism position feedback device |
| CN110886836A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Double-channel signal output's angle displacement sensor gear transmission structure |
| CN117989306A (en) * | 2024-04-03 | 2024-05-07 | 中国重型机械研究院股份公司 | Device and method for eliminating side gap of synchronous gear of flying shear |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141029 |