CN107882941A - A kind of rack and pinion drive mechanism suitable for circular motion - Google Patents
A kind of rack and pinion drive mechanism suitable for circular motion Download PDFInfo
- Publication number
- CN107882941A CN107882941A CN201711237836.3A CN201711237836A CN107882941A CN 107882941 A CN107882941 A CN 107882941A CN 201711237836 A CN201711237836 A CN 201711237836A CN 107882941 A CN107882941 A CN 107882941A
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- Prior art keywords
- rack
- gear
- driving
- circular motion
- tooth
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- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
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
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of rack and pinion drive mechanism suitable for circular motion, and it includes circumferential rack arrangement component and drive gear assemblies；The circumferential rack arrangement component is fixed on circular arc foundation frame；The drive gear assemblies are socketed in drive shaft and engaged with circumferential rack arrangement component matching；The circumferential rack arrangement component includes rack；The drive gear assemblies include driving external gear and driving internal gear；The rack is for linear and realizing circumference in a manner of straight Dai Qu；The drive gear assemblies can integrally rotate around the drive shaft；The driving external gear and the toothing for driving internal gear are barreled tooth flank.The present invention forms sector by the rack of standard, driving external gear carries out engaging for tooth with it, and then circular motion is realized, solve the problems, such as non-sector, gear-rack-driving of bevel gear can not move in a circle, realize basic rack-circumference of gear driving.
Description
Technical field
The present invention relates to technical field of mechanical transmission, and in particular to a kind of rack pinion machine suitable for circular motion
Structure.
Background technology
Existing circumference drive gear-rack system, usual rack makes sector, gear makes bevel gear realization, but
It is this inadaptability in structure in the larger transmission system of radius of a circle.Rather than the gear of sector, conical tooth-rack-driving system
The transmission that system can only be moved along a straight line, it is impossible to carry out the transmission of circular motion.
The content of the invention
It can only be moved along a straight line for gear-rack-driving of above-mentioned existing non-sector, conical tooth, it is impossible to carry out
The characteristics of circumferential transmission problem, the present invention propose a kind of rack and pinion drive mechanism suitable for circular motion, use with straight
Dai Qu mode, sector is formed by the rack of standard, driving external gear indoor design has gone out sphere inner ring and spherical outer ring
Form spherical rotary device, carry out the engagement of tooth, and then realize circular motion, solve non-sector, bevel gear gear-
The problem of rack-driving can not move in a circle, realize basic rack-circumference of gear driving.
Technical scheme is as follows：
The above-mentioned rack and pinion drive mechanism suitable for circular motion, including circumferential rack arrangement component and drive gear set
Part；The circumferential rack arrangement component is fixed on circular arc foundation frame；The drive gear assemblies are socketed in drive shaft
And engaged with circumferential rack arrangement component matching；The circumferential rack arrangement component includes rack；The sliding tooth
Wheel assembly includes driving external gear and driving internal gear；The rack is for linear and realizing circumference in a manner of straight Dai Qu
Arrangement；
The drive gear assemblies can integrally rotate around the drive shaft；The driving external gear and the tooth knot for driving internal gear
Structure is barreled tooth flank；The outer circumference surface of the driving external gear is provided with external tooth, and inner periphery stage casing is provided with a circle internal tooth；Meanwhile
The driving external gear offers nut groove from the middle part of axial both ends of the surface, and the inwall of the nut groove offers internal thread；Institute
The axial end for stating driving external gear from bottom land to the internal tooth of the nut groove offers annular mounting groove vertically；
The external tooth teeth matching positive with the rack of the driving external gear is engaged；The driving inner gear housing is located at described
In drive shaft and matching is outside the inner periphery hole of the driving external gear, the external teeth of the driving internal gear and the driving
The internal tooth matching engagement of gear；Matching is embedded with spacer ring in the annular mounting groove；The axial both ends of the driving internal gear are equal
It is socketed with sphere inner ring；The outside of the sphere inner ring is socketed with spherical outer ring, and the axial inner ends face pressure of the spherical outer ring is tight
In the axial outer end face of the spacer ring；Matching is embedded with clamp nut in the nut groove, the excircle of the clamp nut with
The internal groove side wall of the nut groove is connected through a screw thread, by the spacer ring, sphere inner ring and spherical outer ring axial limiting.
The rack and pinion drive mechanism suitable for circular motion, wherein：Pass through tooth between adjacent two sections of racks
Bar positioning link joins end to end；Every section of rack by rectangle rack block and to be uniformly laid in the rack block positive
Multiple teeth compositions；The back side both ends of the rack block are arranged with half waist-drum-shaped keyway.
The rack and pinion drive mechanism suitable for circular motion, wherein：The rack positioning link uses waist drum
Type key, in the half waist-drum-shaped keyway at the rack block back side of one section of rack, other end matching is embedding for its one end matching
In the half waist-drum-shaped keyway at the rack block back side of adjacent one section of rack.
The rack and pinion drive mechanism suitable for circular motion, wherein：The rack positioning link is symmetrical at its
Center is additionally provided with positioning hole, and it is equipped with the connecting portion of keeper and the rack-plate of adjacent two sections of racks by the positioning hole
Position is fixed.
The rack and pinion drive mechanism suitable for circular motion, wherein：Between the back side both ends of the rack block also
Provided with pilot hole.
The rack and pinion drive mechanism suitable for circular motion, wherein：The driving external gear is in the annular peace
Inner periphery between tankage and nut groove is radially further opened with escape.
Beneficial effect：
The rack and pinion drive mechanism that the present invention is applied to circular motion is reasonable in design, and it is conventional shape to drive inside and outside gear
General rack barrel, rack have been used in the form of straight Dai Qu, and parts design possesses good anufacturability, passes through driving
The internal tooth of external gear and the external tooth engagement composition gear shaft joint of driving internal gear, realize moment of torsion transmission, by driving external tooth
Spherical structure inside wheel realizes swing of the driving external gear relative to driving internal gear, by the pendulum for driving inside and outside gear
Dynamic realize drives the bus of external tooth wheel and rack parallel；Solve non-sector, gear-rack-driving of conical tooth can not
The problem of circular motion is realized, the mechanism form of spherical joint is formed with sphere inner ring and spherical outer ring, realizes transmission process
It is adaptive, and power loss is suitable with general rack-and-pinion transmission, avoids suppressing in circular motion middle gear and rack
Card, the present invention have high practical and popularizing value.
Brief description of the drawings
Fig. 1 is the structural representation for the rack and pinion drive mechanism that the present invention is applied to circular motion；
Fig. 2 is the exploded view of the drive gear assemblies for the rack and pinion drive mechanism that the present invention is applied to circular motion；
Fig. 3 is the knot that the circumferential rack for the rack and pinion drive mechanism that the present invention is applied to circular motion arranges the rack of component
Structure schematic diagram；
Fig. 4 is the profile of the drive gear assemblies for the rack and pinion drive mechanism that the present invention is applied to circular motion；
Fig. 5 is cuing open for the driving external gear of the drive gear assemblies for the rack and pinion drive mechanism that the present invention is applied to circular motion
Face figure；
Fig. 6 is that the circumferential rack for the rack and pinion drive mechanism that the present invention is applied to circular motion arranges the structural representation of component
Figure；
Fig. 7 is that the circumferential rack for the rack and pinion drive mechanism that the present invention is applied to circular motion arranges the rack positioning of component
The structural representation of connector.
Embodiment
As shown in Fig. 1 to 7, the present invention is applied to the rack and pinion drive mechanism of circular motion, including circumferential rack cloth
Put component 1 and drive gear assemblies 2.
Circumferential rack arrangement component 1 is fixed on circular arc foundation frame, and it includes rack 11 and rack is located by connecting
12；It is to be connected by rack positioning link 12 between adjacent two sections of racks 11, realizes the reliable location of rack 11, rack 11
Continuous stress；Wherein, every section of rack 11 is for linear and realizing circumference, every section of rack 11 in a manner of straight Dai Qu
By rectangle rack block 111 and be uniformly laid in the positive multiple teeth 112 of rack block 11 and form, the back side of rack block 111
Both ends are arranged with half waist-drum-shaped keyway 113, and two assembling distribution 114 are additionally provided between the back side both ends of rack block 111；The rack
Positioning link 12 uses waist-drum-shaped key, half waist-drum-shaped key of its one end matching embedded in the back side of rack block 111 of one section of rack 11
In groove 113, other end matching is in the half waist-drum-shaped keyway 113 at the back side of rack block 111 of adjacent one section of rack 11；Meanwhile
The rack positioning link 12 is additionally provided with positioning hole 121 in its symmetrical centre, its by positioning hole 121 be equipped with keeper with it is adjacent
The connecting portion of the rack-plate 111 of two sections of racks 11 is fixed.
The drive gear assemblies 2 are socketed in drive shaft 3 and entirety can rotate around drive shaft, when power is input to driving
Gear assembly 2, the circumferential rack arrange that component 1 engages driving with the matching of drive gear assemblies 2, cause drive gear assemblies 2
Move in a circle.
The drive gear assemblies 2 include driving external gear 21, driving internal gear 22, spacer ring 23, sphere inner ring 24, outside sphere
Circle 25 and clamp nut 26；The toothing of the driving external gear 21 and driving internal gear 22 is barreled tooth flank, it is allowed to opposing oscillatory；
The driving external gear 21 and driving internal gear 22 are combined as universal form, can adaptive rack 11, avoid driving external gear
21 with the holding of rack 11.The outer circumference surface of the driving external gear 21 is provided with external tooth 211, and inner periphery stage casing is provided with a circle internal tooth
212；Meanwhile the driving external gear 21 offers nut groove 213 vertically from the middle part of axial end, the inwall of the nut groove 213
Offer internal thread；The axial end of the driving external gear 21 from bottom land to the internal tooth 212 of nut groove 213 offers ring vertically
Shape mounting groove 214, the inner periphery between annular mounting groove 214 and nut groove 213 radially offer escape 215.
The external tooth 211 of the driving external gear 21 matches with the positive teeth 112 of rack 11 of circumferential rack arrangement component 1
Engagement；The driving internal gear 22 is sheathed in drive shaft 3 and matching is embedded in the inner periphery hole of driving external gear 21, the driving internal tooth
The external tooth of wheel 22 is with driving the matching of internal tooth 212 of external gear 21 to engage；The spacer ring 23 has a pair, a pair of spacer rings 23 difference
With being embedded in the annular mounting groove 214 at driving internal gear 22 axial both ends；The sphere inner ring 24 also has a pair and covered respectively
It is connected to the axial both ends of driving internal gear 22；The spherical outer ring 25 also has a pair and matching is socketed on a pair of sphere inner rings respectively
24 outside, the axial inner ends face of the spherical outer ring 25 are pressed in the axial outer end face of spacer ring 23；The clamp nut 26 also has
A pair, each clamp nut 26 is sheathed in drive shaft 3 and excircle is provided with external screw thread, and each clamp nut 26 is from outer face axle
To offering mounting hole 261；26 inserted num groove of clamp nut, 213 internal thread that is interior and passing through external screw thread and nut groove 213
Matching connection, a pair of spacer rings 23 and a pair of spherical outer rings 25 is respectively limited by inside the axial both ends of driving external gear 21,
A pair of sphere inner rings 24 are limited in the axial both ends of driving internal gear 22.
The present invention is used in a manner of straight Dai Qu, forms sector by the rack of standard, driving external gear is carried out with it
Engagement, and then realizes circular motion, solves non-sector, gear-rack-driving of bevel gear can not move in a circle asks
Topic, realize basic rack-circumference of gear driving.
Claims (6)
1. a kind of rack and pinion drive mechanism suitable for circular motion, including circumferential rack arrangement component and drive gear set
Part；The circumferential rack arrangement component is fixed on circular arc foundation frame；The drive gear assemblies are socketed in drive shaft
And engaged with circumferential rack arrangement component matching；The circumferential rack arrangement component includes rack；The sliding tooth
Wheel assembly includes driving external gear and driving internal gear；It is characterized in that：The rack is for linear and by with straight Dai Qu's
Mode realizes circumference；
The drive gear assemblies can integrally rotate around the drive shaft；The driving external gear and the tooth knot for driving internal gear
Structure is barreled tooth flank；The outer circumference surface of the driving external gear is provided with external tooth, and inner periphery stage casing is provided with a circle internal tooth；Meanwhile
The driving external gear offers nut groove from the middle part of axial both ends of the surface, and the inwall of the nut groove offers internal thread；Institute
The axial end for stating driving external gear from bottom land to the internal tooth of the nut groove offers annular mounting groove vertically；
The external tooth teeth matching positive with the rack of the driving external gear is engaged；The driving inner gear housing is located at described
In drive shaft and matching is outside the inner periphery hole of the driving external gear, the external teeth of the driving internal gear and the driving
The internal tooth matching engagement of gear；Matching is embedded with spacer ring in the annular mounting groove；The axial both ends of the driving internal gear are equal
It is socketed with sphere inner ring；The outside of the sphere inner ring is socketed with spherical outer ring, and the axial inner ends face pressure of the spherical outer ring is tight
In the axial outer end face of the spacer ring；Matching is embedded with clamp nut in the nut groove, the excircle of the clamp nut with
The internal groove side wall of the nut groove is connected through a screw thread, by the spacer ring, sphere inner ring and spherical outer ring axial limiting.
2. it is applied to the rack and pinion drive mechanism of circular motion as claimed in claim 1, it is characterised in that：Adjacent two sections of institutes
State and joined end to end by rack positioning link between rack；Every section of rack by rectangle rack block and be uniformly laid in institute
State the positive multiple teeth composition of rack block；The back side both ends of the rack block are arranged with half waist-drum-shaped keyway.
3. it is applied to the rack and pinion drive mechanism of circular motion as claimed in claim 2, it is characterised in that：The rack is determined
Position connector uses waist-drum-shaped key, the half waist-drum-shaped keyway of its one end matching embedded in the rack block back side of one section of rack
Interior, other end matching is in the half waist-drum-shaped keyway at the rack block back side of adjacent one section of rack.
4. it is applied to the rack and pinion drive mechanism of circular motion as claimed in claim 2, it is characterised in that：The rack is determined
Position connector is additionally provided with positioning hole in its symmetrical centre, and it is equipped with keeper and adjacent two sections of racks by the positioning hole
The connecting portion of rack-plate fix.
5. it is applied to the rack and pinion drive mechanism of circular motion as claimed in claim 2, it is characterised in that：The rack block
Back side both ends between be additionally provided with pilot hole.
6. it is applied to the rack and pinion drive mechanism of circular motion as claimed in claim 1, it is characterised in that：Outside the driving
Inner periphery of the gear between the annular mounting groove and nut groove is radially further opened with escape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711237836.3A CN107882941B (en) | 2017-11-30 | 2017-11-30 | Gear rack transmission mechanism suitable for circular motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711237836.3A CN107882941B (en) | 2017-11-30 | 2017-11-30 | Gear rack transmission mechanism suitable for circular motion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107882941A true CN107882941A (en) | 2018-04-06 |
| CN107882941B CN107882941B (en) | 2023-12-19 |
Family
ID=61776239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711237836.3A Active CN107882941B (en) | 2017-11-30 | 2017-11-30 | Gear rack transmission mechanism suitable for circular motion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882941B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953556A (en) * | 2018-08-09 | 2018-12-07 | 常州信息职业技术学院 | A kind of flexible rack |
| CN110439978A (en) * | 2019-08-30 | 2019-11-12 | 中国人民解放军陆军工程大学 | Rack and transmission assembly capable of switching horizontal and vertical directions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291688A (en) * | 1999-10-08 | 2001-04-18 | 齐鹏 | Mechanism for mutual conversion between linear and circumferential movements |
| JP2001234997A (en) * | 2000-02-22 | 2001-08-31 | Souki Sekkei:Kk | Ball spline with rack |
| CN102200177A (en) * | 2011-05-12 | 2011-09-28 | 朱政 | Transmission gear system of motor vehicle |
| CN202628811U (en) * | 2012-06-07 | 2012-12-26 | 江苏凯宫隧道机械有限公司 | Rotating pivot bearing for driving of shield screw conveyer |
| CN107208746A (en) * | 2015-01-20 | 2017-09-26 | 世进Igb株式会社 | Power transmission devices |
| CN207830488U (en) * | 2017-11-30 | 2018-09-07 | 中铁宝桥集团有限公司 | A kind of rack and pinion drive mechanism suitable for circular motion |
-
2017
- 2017-11-30 CN CN201711237836.3A patent/CN107882941B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291688A (en) * | 1999-10-08 | 2001-04-18 | 齐鹏 | Mechanism for mutual conversion between linear and circumferential movements |
| JP2001234997A (en) * | 2000-02-22 | 2001-08-31 | Souki Sekkei:Kk | Ball spline with rack |
| CN102200177A (en) * | 2011-05-12 | 2011-09-28 | 朱政 | Transmission gear system of motor vehicle |
| CN202628811U (en) * | 2012-06-07 | 2012-12-26 | 江苏凯宫隧道机械有限公司 | Rotating pivot bearing for driving of shield screw conveyer |
| CN107208746A (en) * | 2015-01-20 | 2017-09-26 | 世进Igb株式会社 | Power transmission devices |
| CN207830488U (en) * | 2017-11-30 | 2018-09-07 | 中铁宝桥集团有限公司 | A kind of rack and pinion drive mechanism suitable for circular motion |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953556A (en) * | 2018-08-09 | 2018-12-07 | 常州信息职业技术学院 | A kind of flexible rack |
| CN108953556B (en) * | 2018-08-09 | 2021-06-25 | 常州信息职业技术学院 | Flexible rack |
| CN110439978A (en) * | 2019-08-30 | 2019-11-12 | 中国人民解放军陆军工程大学 | Rack and transmission assembly capable of switching horizontal and vertical directions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107882941B (en) | 2023-12-19 |
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