CN201876249U - Stroke detection mechanism - Google Patents
Stroke detection mechanism Download PDFInfo
- Publication number
- CN201876249U CN201876249U CN2010205791143U CN201020579114U CN201876249U CN 201876249 U CN201876249 U CN 201876249U CN 2010205791143 U CN2010205791143 U CN 2010205791143U CN 201020579114 U CN201020579114 U CN 201020579114U CN 201876249 U CN201876249 U CN 201876249U
- Authority
- CN
- China
- Prior art keywords
- gear
- gears
- stroke detection
- bolster
- moving
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Transmission Devices (AREA)
- Gears, Cams (AREA)
Abstract
The utility model provides a stroke detection mechanism which is used for accurately detecting the movement stroke of a movable part relative to a fixed part. The stroke detection mechanism comprises a rack, a supporting shaft, a combined gear and a detection device, wherein the rack is fixedly arranged on one of the movable part and the fixed part and extends along the moving direction of the movable part, the supporting shaft is fixedly sheathed on the other one of the movable part and the fixed part, the combined gear is rotatablely arranged on the supporting shaft, and the detection device is used for detecting the rotation of the combined gear; the combined gear consists of two first gears with the same size, and the two first gears are respectively arranged on the supporting shaft in a sheathing way; an elastic piece used for providing reverse rotating force for the two first gears is arranged between the two first gears; the gear teeth of the two first gears are arranged in a mutually staggered way; and the adjacent gear teeth of the two first gears can be the combined gear teeth meshed with the rack.
Description
Technical field
The utility model relates to mechanical field, relates in particular to a kind of stroke detection mechanism that is used for accurately detecting moving-member relative fixed parts shift motion.
Background technology
Mechanical field is quite widely for the utilization of gear, and the gear of various forms size all applies to the various aspects of mechanical industry.In mechanical field, normal and the tooth bar formative gear rack mechanism of gear, in order to realize relatively moving between fixed part and the moving-member, planker with roll grinder is an example, and planker and bed ways face are fitted mutually, and gear is arranged on the planker by gear shaft, motor is installed on the planker and connects gear shaft and rotates, tooth bar is meshed on lathe bed and with gear along rail length direction fixed and arranged, and in the process of motor positive and inverse, the wheel and rack engaged transmission makes planker move around.Problem has just occurred like this, in planker alternating movement back and forth, just the commutation the moment, because there are certain interval in gear and tooth bar, make when gear just/do not drive planker in certain rotation amount of counter-rotating not move with the tooth bar engagement, vacuum capacity just occurred,, can not be ignored for precision equipment though this gap is very little.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of stroke detection mechanism is provided, and this mechanism can be used for accurately detecting the shift motion of moving-member relative fixed parts.
The purpose of this utility model realizes by following technical solution:
A kind of stroke detection mechanism, be used for accurately detecting the shift motion of moving-member relative fixed parts, it is characterized in that: the tooth bar that comprises on the parts that are fixedly set in moving-member and the fixed part and extend along the moving-member moving direction, be fixedly set in the bolster on another parts, be set in the composite gear on the bolster rotationally, and the pick-up unit that is used to detect combination gear rotation momentum, described composite gear is made up of the first identical gear of two sizes that is set with on described bolster, be provided with the elastic component that is used to provide two first gear retrograde rotation power between two first gears, the interlaced layout of the gear teeth of two first gears, and the adjacent teeth of two first gears constitutes the combination gear teeth that are meshed with described tooth bar.
The utility model also comprises and is arranged at second gear that is meshed with described tooth bar on described another parts, is connected and drives motor and the electric machine controller that second gear rotates, described pick-up unit is connected with electric machine controller, be used for detecting information to the electric machine controller transmission, electric machine controller generates the instruction control motor action according to described detection information, to compensate the driving error of second gear.
Further, described elastic component is the torsion spring that is sheathed on the bolster, corresponding respectively two described first gears that connect of two free ends of this torsion spring.
Further, described pick-up unit is the grating pick-up unit that is connected with described composite gear.
Further, the opposite face of two described first gears middle part is formed with the elastic component slot to make way respectively.
Further, two described first gears are set on the described bolster rotationally by bearing respectively.
The utlity model has following beneficial effect:
When moving-member and fixed part relatively move, then composite gear rotates under the drive of tooth bar, under the effect of the elastic component between two first gears, the combination gear teeth of composite gear do not have the gap engagement with tooth bar all the time, so only need just can accurately calculate easily the shift motion of moving-member according to the rotation amount of pick-up unit detection composite gear, because composite gear and tooth bar do not have the gap engagement, so the utility model can obtain the shift motion of moving-member accurate, error freely; Pick-up unit is connected with electric machine controller, wherein, motor is used to drive the rotation of second gear and moves to drive moving-member relative fixed parts, electric machine controller can generate the amount of spin of steering order control motor according to the detection information of pick-up unit, with the driving error of automatic compensation second gear.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Shown in seeing figures.1.and.2, a kind of stroke detection mechanism, be used for accurately detecting the shift motion of moving-member (figure illustrates) relative fixed parts (being to illustrate among the figure), relatively moving between moving-member and the fixed part comes transmission by pinion and rack, wherein, pinion and rack, comprise the tooth bar 1 that is fixedly set on the fixed part, be arranged on the moving-member and the transmission gear of tooth bar 1 engagement (among the figure for illustrating), connect to drive the motor that transmission gear rotates (among the figure for illustrating), and the electric machine controller (figure is for illustrating) that is used for controlling machine operation, move with final driving moving-member relative fixed parts by the rotation of motor-driven transmission gear.
Stroke detection mechanism, comprise by fixed mount 41 and be fixedly set in bolster 7 on the moving-member, be set in composite gear 2 on the bolster 7 rotationally by bearing 5, and the grating pick-up unit 6 that is used to detect composite gear 2 amounts of spin, composite gear 2 is by being set in the identical gear 21 of the size of two on the bolster 7 by bearing 5 respectively, 22 form, two gears 21,22 opposite face middle part is formed with slot to make way 212 respectively, 222, the slot to make way 212 of two gears, be provided with between 222 and be used to provide two gears 21, the torsion spring 4 of 22 retrograde rotation power, torsion spring 4 is sheathed on the bolster 7, and its two free end is respectively by connecting pin 41 corresponding two gears 21 that connect, 22, two gears 21,22 the gear teeth 211,221 interlaced layouts, and two gears 21,22 adjacent teeth structure 211,221 one-tenth combination gear teeth that are meshed with tooth bar 1, grating pick-up unit 6 is connected with gear 21, and be connected with electric machine controller, the amount of spin that is used for detection of gear 21, and to electric machine controller transmission detection information, electric machine controller generates the instruction control motor action according to detection information, with the driving error of compensation transmission gear.
In detail with reference to shown in Figure 1, because of torsion spring provides two gears 21,22 retrograde rotation power, the adjacent teeth structure 211,221 of two gears 21,22 constitutes the combination gear teeth, meshes with tooth bar 1 no gap, i.e. corresponding respectively two acting surfaces that compress the teeth groove of tooth bar 1 of tooth structure 211,221.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (6)
1. stroke detection mechanism, be used for accurately detecting the shift motion of moving-member relative fixed parts, it is characterized in that: the tooth bar that comprises on the parts that are fixedly set in moving-member and the fixed part and extend along the moving-member moving direction, be fixedly set in the bolster on another parts, be set in the composite gear on the bolster rotationally, and the pick-up unit that is used to detect combination gear rotation momentum, described composite gear is made up of the first identical gear of two sizes that is set with on described bolster, be provided with the elastic component that is used to provide two first gear retrograde rotation power between two first gears, the interlaced layout of the gear teeth of two first gears, and the adjacent teeth of two first gears constitutes the combination gear teeth that are meshed with described tooth bar.
2. a kind of stroke detection according to claim 1 mechanism, it is characterized in that: also comprise being arranged at second gear that is meshed with described tooth bar on described another parts, motor and the electric machine controller that is connected the rotation of driving second gear, described pick-up unit is connected with electric machine controller, be used for detecting information to the electric machine controller transmission, electric machine controller generates the instruction control motor action according to described detection information, to compensate the driving error of second gear.
3. a kind of stroke detection according to claim 1 and 2 mechanism, it is characterized in that: described elastic component is the torsion spring that is sheathed on the bolster, corresponding respectively two described first gears that connect of two free ends of this torsion spring.
4. a kind of stroke detection according to claim 1 and 2 mechanism is characterized in that: the grating pick-up unit of described pick-up unit for being connected with described composite gear.
5. a kind of stroke detection according to claim 1 and 2 mechanism, it is characterized in that: the opposite face middle part of two described first gears is formed with the elastic component slot to make way respectively.
6. a kind of stroke detection according to claim 1 and 2 mechanism, it is characterized in that: two described first gears are set on the described bolster rotationally by bearing respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205791143U CN201876249U (en) | 2010-10-26 | 2010-10-26 | Stroke detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205791143U CN201876249U (en) | 2010-10-26 | 2010-10-26 | Stroke detection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876249U true CN201876249U (en) | 2011-06-22 |
Family
ID=44164165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205791143U Expired - Fee Related CN201876249U (en) | 2010-10-26 | 2010-10-26 | Stroke detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201876249U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101315A (en) * | 2013-04-09 | 2014-10-15 | 段文博 | Linear-rotary-type displacement sensing device, and application system and control method thereof |
| CN107367233A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | A kind of bidentate device for detecting distance of travel and method |
-
2010
- 2010-10-26 CN CN2010205791143U patent/CN201876249U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101315A (en) * | 2013-04-09 | 2014-10-15 | 段文博 | Linear-rotary-type displacement sensing device, and application system and control method thereof |
| CN107367233A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | A kind of bidentate device for detecting distance of travel and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200975454Y (en) | Straight-line reciprocating drive and reversion mechanism | |
| CN202895245U (en) | Arm assembly for industrial robot and industrial robot | |
| CN205419033U (en) | Straight line transmission device | |
| CN203009774U (en) | Dual-motor anti-backlash transmission mechanism | |
| CN202753454U (en) | Double-screw press | |
| CN201876249U (en) | Stroke detection mechanism | |
| CN101922540B (en) | Linear motion actuating mechanism and device utilizing same | |
| CN105269567A (en) | Platform manipulator | |
| CN202163120U (en) | Semi-automatic cover feeding machine | |
| CN104154200B (en) | A kind of mechanical device that uses single power source to realize two-dimentional closing motion track | |
| CN106481771B (en) | A kind of synchronous friction speed linkage mechanism | |
| CN204496510U (en) | Barcode scanning machine | |
| CN201189612Y (en) | Double driving apparatus for numerically controlling beam motion of planer-type milling machine | |
| CN203023414U (en) | Double-sided circulating cog belt transmission mechanism | |
| CN202182153U (en) | Cantilever drive type double-motor anti-backlash rotary mechanism | |
| CN101294620A (en) | Reciprocating linear motion mechanism | |
| CN211662098U (en) | Brake mechanism and robot | |
| CN202392051U (en) | Double-motor double-output integrated anti-backlash gearbox | |
| CN210240469U (en) | Miniature electric linear driving servo steering engine | |
| CN209503617U (en) | CWA6185 horizontal lathe main transmission gearshift | |
| CN203265355U (en) | Worm gear pressurizing type punch press | |
| CN203124486U (en) | Novel backlash-free gear angle adjusting device of inclined roller straightening machine | |
| CN206257232U (en) | Novel eccentric friction speed synchronizing linkage | |
| CN202155644U (en) | Gear rack transmission device | |
| CN201394757Y (en) | Double-gear driving device of roll grinder carriages |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |