CN202393354U - Guyed photoelectric displacement sensor - Google Patents
Guyed photoelectric displacement sensor Download PDFInfo
- Publication number
- CN202393354U CN202393354U CN201120462481XU CN201120462481U CN202393354U CN 202393354 U CN202393354 U CN 202393354U CN 201120462481X U CN201120462481X U CN 201120462481XU CN 201120462481 U CN201120462481 U CN 201120462481U CN 202393354 U CN202393354 U CN 202393354U
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- gear
- backguy
- main shaft
- fork
- photoelectric
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Abstract
The utility model discloses a guyed photoelectric displacement sensor which is characterized in that in a housing, a vertical front frame divides an inner cavity of the housing into a front cavity and a rear cavity; a rear frame in the rear cavity and the front frame support a rotatable main shaft via a bearing, and a front shaft of the main shaft extends into the front cavity of the housing; a guyed disk is fixedly arranged on the front shaft of the main shaft, one end of a guy is wound on the guyed disk, and the other end is introduced from a guy mouth via a guy discharging device and a direction microswitch; a gear set is arranged under the support of the front frame and the rear frame, and the gear set takes a main shaft gear which is arranged on the main shaft as a driving wheel, and a final stage driven gear as a modulation gear; emitting electrodes and receiving electrodes of photoelectric interruptors are arranged on the two sides of lightproof blades of the modulation gear. The guyed photoelectric displacement sensor is small in volume, big in measuring range, high in precision, low in cost and is easy to install. The guyed photoelectric displacement sensor can bypass an object to carry out the displacement measurement through arranging a fixed pulley.
Description
Technical field
The utility model relates to a kind of sensor of Measuring Object displacement of the lines, a kind of specifically stay-supported photoelectric displacement transducer.
Background technology
Existing displacement transducer has mechanical type, resistance-type, condenser type and inductance type etc., and this type sensor exists that reading is directly perceived, range is little, volume excessively causes inconvenient installation, in case there is barrier just can't measure etc., makes in concrete application restricted.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, provides that a kind of volume is little, range is big, precision is high, easy for installation, stay-supported photoelectric displacement transducer that cost is low.
The utility model adopts following technical scheme for the technical solution problem:
The design feature of the utility model stay-supported photoelectric displacement transducer is:
Has the arch door shape casing that stands upright on the rectangular base; In said casing; Cavity and rear chamber before one upright forebay is divided into chassis cavity are arranged in said rear chamber, with said forebay one upright afer bay are set with paralleling, support a rotating main shaft by said forebay and afer bay jointly through bearing; The leading portion axle of said main shaft extends in the preceding cavity of casing, on the leading portion axle of said main shaft, is provided with the tensioning disc spring; The casing upper right side of cavity position is provided with a backguy mouth before said, and the preceding cavity that is arranged in backguy mouth porch is provided with a direction microswitch;
One cable quadrant is fixedly installed on the leading portion axle of said main shaft; The upper right side that is positioned at cable quadrant is one can backguy be become the thread arranging device of the single wrapping wire of spiral on cable quadrant; The one end coiling of backguy is on cable quadrant, and the other end is drawn in the backguy mouth through thread arranging device and direction microswitch successively;
With said forebay and afer bay is support; One gear set is set; Said gear set is to be driving wheel with the mainshaft gear that is fixedly installed on the main shaft, with the ratchet of mainshaft gear engagement be first engaged wheel, the final stage engaged wheel is the modulation wheel with three light tight blades that are uniformly distributed with; From said ratchet to said modulation wheel, therebetween according to each intergrade engaged wheel of the descending engaged transmission successively of diameter;
Circuit board is fixedly installed on the sidewall of forebay, and two groups of photoelectric interrupters are set on said circuit board, and the emitter of said photoelectric interrupter and receiving pole split the both sides at the light tight blade of said modulation wheel; Said two groups of photoelectric interrupters are in each other on 90 ° the position.
The design feature of the utility model stay-supported photoelectric displacement transducer also is:
Said thread arranging device is set is by constituting at the transmission gear at two ends and the screw thread row silk tube that is connected between the transmission gear of two ends, the surface of said screw thread row silk tube is a helix groove;
It is by constituting at the band increment plate at two ends and the bobbins that is connected between the band increment plate of two ends that said cable quadrant is set; By the moving thread arranging device of band increment strip on the said cable quadrant is when said cable quadrant turns over a week; Thread arranging device turns over gear teeth, and the width of the external diameter of the backguy of backguy translation vertically under screw thread row silk tube drives on the thread arranging device.
The design feature of the utility model stay-supported photoelectric displacement transducer also is:
The transmission gear that is positioned at two ends on the said thread arranging device is to form double-deck internal layer gear and outer gear; Said internal layer gear is identical with tooth depth, the facewidth, tip diameter, root diameter on the outer gear; The number of teeth of internal layer gear is the number of teeth half the of outer gear, and on the internal layer gear the adjacent gear teeth be with outer gear at interval gear teeth overlaid one by one;
The arranged outside of band increment plate on the said cable quadrant have two be merely able to outer gear on two adjacent driving cogs that the gear teeth are meshed, the teeth groove between said two driving cogs runs through said band increment plate.
The design feature of the utility model stay-supported photoelectric displacement transducer also is:
The structure of said direction microswitch is set to: be a fork vertically is set; Bearing pin as oscillation centre is arranged on the fork suspension on the frame; Be provided with the blade frame on the top of said fork; The bottom cutting edge of blade frame is pressed in the backguy, and a permanent-magnet steel piece is set in the bottom of said fork, with the base of said permanent-magnet steel piece relative position on a Hall element is set.
One fork location structure is set, and is the bottom at said fork, is on the machine frame at two sides with said permanent magnet relevant position, and the location iron plate is set respectively, with the absorption location fork of said permanent magnet to said location iron plate.
The stay-supported displacement transducer is based on following principle of work in the utility model:
The sensing of testee displacement: fixedly install the stay-supported photoelectric displacement transducer; The backguy that to from the backguy mouth, draw hangs on the link of testee measuring point; Rely on the elastic force of tensioning disc spring retraction in the sensor, after the backguy retraction is tightened, can carry out displacement and measure.When testee produces displacement pulling backguy, cable quadrant will be made corresponding both forward and reverse directions and rotate.The cable quadrant revolution moves a week, and via the speed change of gear set, tested displacement is fully amplified, and improves resolution with this.A few backguys of on cable quadrant, twining can make range reach more than the 1m, utilize modulation wheel and photoelectric interrupter to convert the mechanical signal of rotating to digital electric signal, thereby obtain the detection of displacement.
Compared with present technology, the utility model beneficial effect is embodied in: the utility model volume is little, range is big, precision is high, easy for installation, cost is low, can measure through settling fixed pulley come the cut-through object to carry out displacement, in real time video data.
Description of drawings
Figure 1A is the utility model master TV structure synoptic diagram;
Figure 1B is the utility model backsight structural representation;
Fig. 1 C is the utility model plan structure synoptic diagram;
Fig. 1 D is the utility model side-looking structural representation;
Fig. 2 A is that thread arranging device and cable quadrant meshing transmission structure master look synoptic diagram in the utility model;
Fig. 2 B is thread arranging device and a cable quadrant meshing transmission structure schematic side view in the utility model;
Fig. 2 C is thread arranging device and a cable quadrant meshing transmission structure schematic top plan view in the utility model;
Label among the figure: 1 backguy; 2 backguy mouths; 3 casings; 4 covers; 5 bases; 6 cable fixed head; 7 cables; 11 dedusting chambeies; 12 main shafts; 13 forebaies; 14 afer bays; 15 bearings; 16 tensioning disc springs; 17 gear sets; 18 ratchets; 19 modulation wheels; 20 first photoelectric interrupters; 21 second photoelectric interrupters; 22 circuit boards; 31 direction microswitches; 32 forks; 33 blade framves; 34 permanent-magnet steel pieces; 35 Hall elements; 36 bearing pins; 37 location iron plates; 41 thread arranging devices; 42 screw threads row silk tube; 43 pin shaft holes; 44 internal layer gears; 45 outer gears; 51 cable quadrants; 52 reels; 53 band increment plates; 54 driving cogs; 55 fixed hubs, 56 spindle holes.
Embodiment
Shown in Figure 1A, the design feature of stay-supported photoelectric displacement transducer is in the present embodiment: have the arch door shape casing 3 that stands upright on the rectangular base 5; Shown in Fig. 1 C; In casing 3, cavity and rear chamber before a upright forebay 13 is divided into chassis cavity are arranged in rear chamber, with forebay 13 a upright afer bay 14 are set with paralleling; Support rotating main shafts 12 by forebay 13 and afer bay 14 jointly through bearing 15; The leading portion axle of main shaft 12 extends in the preceding cavity of casing 3, on the leading portion axle of main shaft 12, is provided with tensioning disc spring 16, and the front end face of preceding cavity is set to cover 4; Shown in Figure 1A, Fig. 1 C and Fig. 1 D, in the casing upper right side of preceding cavity position one backguy mouth 2 is set, a dedusting chamber 11 is set in the backguy mouth 2; Be used to backguy 1 and remove foreign material; Dedusting chamber 11 can be a square cavity, and its built-in two felts are cleared up dedusting when backguy 1 is passed in the middle of two felts; Backguy 1 promptly is to get into the casing 3 through dedusting chamber 11 from backguy mouth 2; The preceding cavity that is arranged in backguy mouth 2 porch is provided with a direction microswitch 31, and the cable fixed head 6 in that the bottom of casing 3 is provided with is used to run through cable 7.
Shown in Figure 1A, Fig. 1 C and Fig. 2 A; One cable quadrant 51 is fixedly installed on the leading portion axle of main shaft 12; The upper right side that is positioned at cable quadrant 51 is one can be with the thread arranging device 41 of the single wrapping wire of 1 one-tenth spiral of backguy on cable quadrant 51; The one end coiling of backguy 1 is on cable quadrant 51, and the other end is drawn in backguy mouth 2 through thread arranging device 41 and direction microswitch 31 successively.
Shown in Figure 1B and Fig. 1 C; Is support with forebay 13 with afer bay 14, and a gear set 17 is set, and gear set 17 is to be driving wheel with the mainshaft gear that is fixedly installed on the main shaft 12; The ratchet 18 that meshes with mainshaft gear is first engaged wheel; The final stage engaged wheel is the modulation wheel 19 with three light tight blades that are uniformly distributed with, from ratchet 18 to modulation wheel 19, therebetween according to each intergrade engaged wheel of the descending engaged transmission successively of diameter.
Shown in Figure 1B, circuit board 22 is fixedly installed on the sidewall of forebay 13, and two groups of photoelectric interrupters are set on circuit board 22, and the emitter of photoelectric interrupter and receiving pole split the both sides at the light tight blade of modulation wheel 19; Two groups of photoelectric interrupters are to be in each other 90 ° of locational first photoelectric interrupters 20 and second photoelectric interrupter 21; In the present embodiment; The modulation wheel 19 and first photoelectric interrupter 20 and second photoelectric interrupter, 21 formation chromacoders are set, convert mechanical signal into digital electric signal.
In the practical implementation, shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, thread arranging device 41 is set is by constituting at the transmission gear at two ends and the screw thread row silk tube 42 that is connected between the transmission gear of two ends, the surface of screw thread row silk tube 42 is a helix groove; The transmission gear that is positioned at two ends on the thread arranging device 41 is to form double-deck internal layer gear 44 and outer gear 45; Internal layer gear 44 is identical with tooth depth, the facewidth, tip diameter, root diameter on the outer gear 45; The number of teeth of internal layer gear 44 is the number of teeth half the of outer gear 45, and on the internal layer gear 44 the adjacent gear teeth be with outer gear 45 at interval gear teeth overlaid one by one;
It is by constituting at the band increment plate 53 at two ends and the bobbins 52 that is connected between the two ends band increment plate 53 that cable quadrant 51 is set; The thread arranging device 41 that is driven by band increment plate 53 on the cable quadrant 51 is when cable quadrant 51 turns over a week; Thread arranging device 41 turns over gear teeth, and the width of the external diameter of the backguy 1 of backguy 1 translation vertically under screw thread row silk tube drives on the thread arranging device 41; The arranged outside of band increment plate 53 on the cable quadrant 51 have two be merely able to outer gear 45 on the driving cog 54 that is meshed of two adjacent gear teeth; Teeth groove between two driving cogs 54 runs through band increment plate 53, makes on the excircle of band increment plate 53, to form a teeth groove.The gear teeth of internal layer gear 11 can carry out engaged transmission with teeth groove on band increment plate 53 excircles, and the external peripheral surface that can be resisted against band increment plate 53 slides, and form damping and arbitrarily rotate to stop thread arranging device 41.
Shown in Figure 1A; The structure of the direction microswitch 31 in the present embodiment is set to: be a fork 32 vertically is set, as the bearing pin 36 of oscillation centre fork 32 suspensions are arranged on the frame, be provided with blade frame 33 on the top of fork 32; The bottom cutting edge of blade frame 33 is pressed in the backguy 1; One permanent-magnet steel piece 34 is set in the bottom of fork 32, with the base 5 of permanent-magnet steel piece 34 relative positions on a Hall element 35 is set, be about the gap of 1mm between the bottom surface of the end face of Hall element 35 and permanent-magnet steel piece 34; Backguy 1 is resisted against on the blade of blade frame 33; Along with moving of backguy 1, therefore fork 32 cuts the magnetic line of force on the Hall element 35 towards moving direction one side oscillation of backguy 1; One fork location structure is set, and is in the bottom of fork 32, is on the machine frame at two sides with permanent magnet 34 relevant positions, and location iron plate 37 is set respectively, with the absorption location fork 32 of 34 pairs of location of permanent magnet iron plate 37, avoids the shake of fork.
Fixed hub 55 shown in Fig. 2 C is used for cable quadrant 51 is fixed in main shaft 12, so spindle hole 56 usefulness described in Fig. 2 A penetrate main shaft 12.
Use-pattern is undertaken by following process:
1, the test point at testee installs link.
2, if do not blocked between stay-supported photoelectric displacement transducer and the testee, adopt the method for directly settling, after the backguy mouth hole aligning test point with sensor, be fixed in sensor on the unshift relatively object by other objects; If blocked by other objects between sensor and the testee, adopt the method for walking around arrangement, in the corner in backguy path fixed pulley is set, be fixed in sensor on the unshift relatively object again.
3, from the backguy mouth hole of stay-supported photoelectric displacement transducer, pull out backguy, link backguy directly the link of hanging or be hung on the testee test point through fixed pulley.
4, connect the cable of stay-supported photoelectric displacement transducer with the displacement processor, can carry out displacement measurement testee.
The stay-supported photoelectric displacement transducer can reach following performance index in the present embodiment:
Range: 0～2000mm or-1000～1000mm;
Resolution: 0.01mm;
Precision: ± 0.03mm;
Direction microswitch in the present embodiment is used to eliminate the error in gear set middle gear gap; Because backguy contacts with blade frame in the direction microswitch; No matter backguy is pulled out in the backguy mouth hole or is withdrawn; Fork is swung around bearing pin, and the magnetic line of force of permanent-magnet steel piece cutting Hall element obtains backguy with this and moves towards signal; If the distance of blade frame upper knife edge to bearing pin is L
1, the distance of the bottom surface of permanent-magnet steel piece to bearing pin is L
2, and L
2=60L
1, blade frame blade moves and is a, and permanent-magnet steel piece bottom surface is moved and is b, then b=(L
2/ L
1) a; When a=0.01mm, b=0.6mm, this 0.6mm moves, and is enough to switch the magnetic line of force of Hall element.Set backguy and pull out, be digital signal " 1 " to opening; The backguy retraction is digital signal " 0 " for closing, and through the judgement of logical circuit, comes the count pulse of control compensation increase or minimizing counter, to eliminate the error that is caused by gear clearance.In addition, because the gear clearance that gear set produces is very little,, just eliminated the error that the gear set gear clearance causes in backguy wire initial moment.
Claims (5)
1. stay-supported photoelectric displacement transducer is characterized in that:
Has the arch door shape casing (3) that stands upright on the rectangular base (5); In said casing (3); Cavity and rear chamber before one upright forebay (13) is divided into chassis cavity; Be arranged in said rear chamber, a upright afer bay (14) be set with paralleling with said forebay (13); Support a rotating main shaft (12) by said forebay (13) and afer bay (14) jointly through bearing (15), the leading portion axle of said main shaft (12) extends in the preceding cavity of casing (3), on the leading portion axle of said main shaft (12), is provided with tensioning disc spring (16); The casing upper right side of cavity position is provided with a backguy mouth (2) before said, and the preceding cavity that is arranged in backguy mouth (2) porch is provided with a direction microswitch (31);
One cable quadrant (51) is fixedly installed on the leading portion axle of said main shaft (12); The upper right side that is positioned at cable quadrant (51) is one can backguy (1) be become the thread arranging device (41) of the single wrapping wire of spiral on cable quadrant (51); The one end coiling of backguy (1) is on cable quadrant (51), and the other end is drawn in backguy mouth (2) through thread arranging device (41) and direction microswitch (31) successively;
With said forebay (13) and afer bay (14) is support; One gear set (17) is set; Said gear set (17) is to be driving wheel with the mainshaft gear that is fixedly installed on the main shaft (12), with the ratchet (18) of mainshaft gear engagement be first engaged wheel, the final stage engaged wheel is the modulation wheel (19) with three light tight blades that are uniformly distributed with; From said ratchet (18) to said modulation wheel (19), therebetween according to each intergrade engaged wheel of the descending engaged transmission successively of diameter;
Circuit board (22) is fixedly installed on the sidewall of forebay (13), and two groups of photoelectric interrupters are set on said circuit board (22), and the emitter of said photoelectric interrupter and receiving pole split the both sides at the light tight blade of said modulation wheel (19); Said two groups of photoelectric interrupters are in each other on 90 ° the position.
2. stay-supported photoelectric displacement transducer according to claim 1 is characterized in that:
Said thread arranging device (41) is set is by constituting at the transmission gear at two ends and the screw thread row's silk tube (42) that is connected between the transmission gear of two ends, the surface of said screw thread row's silk tube (42) is a helix groove;
Said cable quadrant (51) is set is by band increment plate (53) that is positioned at two ends and the bobbins (52) that is connected between the two ends band increment plates (53) and constitute; The thread arranging device (41) of being gone up band increment plate (53) drive by said cable quadrant (51) is when said cable quadrant (51) turns over a week; Thread arranging device (41) turns over gear teeth, and goes up the width of the external diameter of backguy (1) backguy of translation vertically (1) under screw thread row's silk tube (42) drive at thread arranging device (41).
3. stay-supported photoelectric displacement transducer according to claim 2 is characterized in that:
The transmission gear that is positioned at two ends on the said thread arranging device (41) is to form double-deck internal layer gear (44) and outer gear (45); Said internal layer gear (44) is identical with tooth depth, the facewidth, tip diameter, root diameter on the outer gear (45); The number of teeth of internal layer gear (44) is the number of teeth half the of outer gear (45), and internal layer gear (44) go up the adjacent gear teeth be with outer gear (45) at interval gear teeth overlaid one by one;
The arranged outside that goes up band increment plate (53) at said cable quadrant (51) has two to be merely able to go up the driving cog (54) that two adjacent gear teeth are meshed with outer gear (45), and the teeth groove between said two driving cogs (54) runs through said band increment plate (53).
4. stay-supported photoelectric displacement transducer according to claim 1; The structure that it is characterized in that said direction microswitch (31) is set to: be a fork (32) vertically is set; Bearing pin (36) as oscillation centre is arranged on fork (32) suspension on the frame; Be provided with blade frame (33) on the top of said fork (32); The bottom cutting edge of blade frame (33) is pressed in the backguy (1), and a permanent-magnet steel piece (34) is set in the bottom of said fork (32), with the base (5) of said permanent-magnet steel piece (34) relative position on a Hall element (35) is set.
5. stay-supported photoelectric displacement transducer according to claim 4; It is characterized in that being provided with a fork location structure; It is bottom in said fork (32); Be on the machine frame at two sides with said permanent magnet (34) relevant position, location iron plate (37) is set respectively, with the absorption location fork (32) of said permanent magnet (34) said location iron plate (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120462481XU CN202393354U (en) | 2011-11-21 | 2011-11-21 | Guyed photoelectric displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120462481XU CN202393354U (en) | 2011-11-21 | 2011-11-21 | Guyed photoelectric displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393354U true CN202393354U (en) | 2012-08-22 |
Family
ID=46668272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120462481XU Expired - Fee Related CN202393354U (en) | 2011-11-21 | 2011-11-21 | Guyed photoelectric displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506723A (en) * | 2011-11-21 | 2012-06-20 | 合肥工业大学 | Pull-wire-type photoelectric displacement sensor |
| CN105606009A (en) * | 2015-12-09 | 2016-05-25 | 赵红 | Passive equivalent sensor |
-
2011
- 2011-11-21 CN CN201120462481XU patent/CN202393354U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506723A (en) * | 2011-11-21 | 2012-06-20 | 合肥工业大学 | Pull-wire-type photoelectric displacement sensor |
| CN105606009A (en) * | 2015-12-09 | 2016-05-25 | 赵红 | Passive equivalent sensor |
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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: 20120822 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |