CN206339567U - Reflection jig of photoelectric tachometer - Google Patents
Reflection jig of photoelectric tachometer Download PDFInfo
- Publication number
- CN206339567U CN206339567U CN201621456653.1U CN201621456653U CN206339567U CN 206339567 U CN206339567 U CN 206339567U CN 201621456653 U CN201621456653 U CN 201621456653U CN 206339567 U CN206339567 U CN 206339567U
- Authority
- CN
- China
- Prior art keywords
- light
- hollow cylinder
- reflecting portion
- drive shaft
- fastener
- 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
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Optical Transform (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a reflection of light tool of photoelectricity tachometer, including reflection of light portion, still include detachable fastener, the fastener is used for fixing on the periphery of drive shaft, the fastener includes hollow cylinder, hollow cylinder is used for the cover to establish outside the drive shaft, hollow cylinder with the drive shaft is coaxial to be arranged, reflection of light portion has a plurality ofly and follows the even interval of circumference of hollow cylinder sets up. Because the number of the light reflecting parts is multiple, a plurality of pulse signals can be output by the driving shaft every revolution, and the acquisition precision is improved; and the light reflecting part is arranged on the detachable fastener, so that the light reflecting degree is easy to control, and the stability is improved.
Description
Technical field
The utility model is related to automobile driving axle rotation-speed measuring device more particularly to a kind of reflective tool of photoelectric whirl table.
Background technology
Photoelectric whirl table is differently formed pulse signal by what sensitive probe sensed rotating object reflectance, and then by pulse
Signal is input to number and adopts front end metering rotating speed.
At present, in drive shaft speed measurement, the difference of the reflectance of periphery is formed using the method for reflecting strips is pasted
Different, inductive probe is irradiated to reflecting strips formation pulse signal during rotation.
As shown in figure 1, being specially：
1st, the single reflecting strips 2 ' manually cut out directly are pasted in drive shaft 1 '；
2nd, photoelectric whirl table is adjusted, tire is rotated, rotates drive shaft 1 ', it is ensured that the reflecting rate of the illuminated point of periphery is remote
Less than the reflecting rate of reflecting strips 2 ', and set rational pulse output higher limit；
3rd, during travelled by vehicle, check whether tach signal has saltus step situation, adjustment is repeated.
A reflecting strips can only be pasted due to the precision problem manually pasted, on periphery, thus there is following problem：
A, the measurement accuracy of rotating speed are relevant with the pulse number that every revolution is exported.When only pasting a reflecting strips, drive
Moving axis every revolution only exports a pulse signal, causes acquisition precision too low, and can not read the slow-speed of revolution (<When 150rpm)
Drive shaft speed.
B, due to artificial paste papery reflecting strips, the reflecting rate difference of periphery less and pastes the low problem of precision,
Output signal is unstable.During installation and debugging, it need to check and confirm repeatedly on lifting machine, often turn during real vehicle traveling
Fast hopping phenomenon, causes mounting and adjusting repeatedly and effect confirmation, extremely inefficient.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art there is provided a kind of acquisition precision is high, stability is high
The reflective tool of photoelectric whirl table.
The technical solution of the utility model provides a kind of reflective tool of photoelectric whirl table, including light-reflecting portion, also including can
The fastener of detachable, the fastener is used for the periphery for being fixed on drive shaft, and the fastener includes hollow cylinder, institute
Stating hollow cylinder is used to be set in outside the drive shaft, and the hollow cylinder and the drive shaft are coaxially arranged, the light-reflecting portion
There is even circumferential interval setting multiple and along the hollow cylinder.
Further, the light-reflecting portion is the strip along the axis direction of the hollow cylinder.
Further, multiple non-light-reflecting portions, the non-light-reflecting portion and the light-reflecting portion edge are additionally provided with the hollow cylinder
The circumference of the hollow cylinder is arranged one by one successively.
Further, the non-light-reflecting portion is the void region being opened on the hollow cylinder.
Further, the light-reflecting portion is the entity area between the void region.
Further, the non-light-reflecting portion is to be coated with the region of light absorbent.
Further, the light-reflecting portion is made of high reflecting material.
Further, the fastener also includes multiple bolts, and the fastener passes through the bolt and the drive shaft
It is fixedly connected.
Further, the bolt is held out against on the surface of the drive shaft through the fastener, and the bolt can revolve
Turn flexible.
Further, the hollow cylinder is put together by two semicircular cylinders, and two semicircular cylinders are bolted
Connection.
After adopting the above technical scheme, having the advantages that：
Because light-reflecting portion has multiple, drive shaft each rotation can export multiple pulse signals, increase acquisition precision；And
Light-reflecting portion is arranged on detachable fastener, and reflectance is easily controlled, and adds stability.
Brief description of the drawings
Referring to accompanying drawing, disclosure of the present utility model will be easier to understand.It should be understood that：These accompanying drawings are used only for
Descriptive purpose, and be not intended to and protection domain of the present utility model is construed as limiting.In figure：
Fig. 1 is existing reflective tool and the structural representation of drive shaft；
Fig. 2 is the reflective tool and the stereogram of drive shaft of photoelectric whirl table in the utility model embodiment one；
Fig. 3 is the stereogram of the reflective tool of photoelectric whirl table in the utility model embodiment one；
Fig. 4 is the stereogram of the reflective tool of photoelectric whirl table in the utility model embodiment two.
The reference table of comparisons：
1 '-drive shaft 2 '-reflecting strips
1- drive shaft 2- fastener 21- hollow cylinders
The non-light-reflecting portion 24- bolts of 22- light-reflecting portions 23-
25- bolts
Embodiment
Further illustrate embodiment of the present utility model below in conjunction with the accompanying drawings.
It is readily appreciated that, according to the technical solution of the utility model, in the case where not changing the utility model connotation, this area
Those skilled in the art the various structures mode and implementation that can mutually replace.Therefore, detailed description below and
Accompanying drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as whole of the present utility model or is considered as
Utility model technical scheme is defined or limited.
Mention in this manual or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Orientation term is defined relative to the construction shown in each accompanying drawing, and they are relative concepts, and it is therefore possible to can root
Correspondingly changed according to its residing diverse location, different use states.So, also should not be by these or others side
Position term is construed to restricted term.
Embodiment one：
Referring to shown in Fig. 2-3, Fig. 2-3 is the structural representation of reflective tool in embodiment one.
In the present embodiment, as shown in Fig. 2 the reflective tool of photoelectric whirl table, including light-reflecting portion 22, also including detachable
Fastener 2, fastener 2 is used to be fixed on the periphery of drive shaft 1, and fastener 2 includes hollow cylinder 21, hollow cylinder 21
For being set in outside drive shaft 1, hollow cylinder 21 and drive shaft 1 are coaxially arranged, and light-reflecting portion 22 has multiple and along hollow cylinder
21 even circumferential interval setting.
Wherein, the diameter with diameter greater than drive shaft 1 of hollow cylinder 21, hollow cylinder 21 is set in the outside of drive shaft 1,
And both central axis are located along the same line.
Light-reflecting portion 22 is arranged on the periphery of hollow cylinder 21, each point and drive due to the periphery of hollow cylinder 21
Vertical range between the periphery of moving axis 1 is equal, therefore is arranged in each light-reflecting portion 22 of hollow cylinder 21 apart from drive shaft 1
Periphery vertical range it is also equal.It ensure that the accuracy of test result.
Because light-reflecting portion 22 has multiple, each rotation of drive shaft 1 can export multiple pulse signals, increase acquisition precision,
The drive shaft speed during slow-speed of revolution can be gathered；And light-reflecting portion 22 is arranged on detachable fastener, compared to directly viscous
The reflecting strips of knot on the driving shaft, reflectance is easily controlled, and adjusts process simplification, without installing confirmation repeatedly, adds stabilization
Property.
In the present embodiment, as Figure 2-3, be additionally provided with multiple non-light-reflecting portions 23 on hollow cylinder 21, non-light-reflecting portion 23 with
Circumference of the light-reflecting portion 22 along hollow cylinder 21 is arranged one by one successively.Non- light-reflecting portion 23 is the vacancy section being opened on hollow cylinder 21
Domain.Light-reflecting portion 23 is the entity area between void region.Light-reflecting portion 22 and non-light-reflecting portion 23 are the axle along hollow cylinder 21
The strip in line direction.
Specifically, the void region of the strip of multiple uniform intervals distributions is outputed on the periphery of hollow cylinder 21,
Void region is non-light-reflecting portion 23.When sensitive probe is irradiated to void region, light is absorbed substantially.
Strip between adjacent non-light-reflecting portion 23 is light-reflecting portion 22, and light-reflecting portion 22 is the entity on the surface of hollow cylinder 21
Region.When sensitive probe is irradiated to entity area, light is reflected, and is formd with non-light-reflecting portion 23 visibly different reflective
Degree.
In the present embodiment, tens light-reflecting portions 22 and non-light-reflecting portion 23, i.e. hollow cylinder 21 are distributed with hollow cylinder 21
Rotated one week with drive shaft 1, tens pulse signals can be exported, the precision of collection is substantially increased.Also, driven with existing
The scheme for bonding reflecting strips on moving axis is compared, and the reflectance difference in the present embodiment is big, stable output signal, regulation process letter
Change, without installing confirmation repeatedly, improve operating efficiency.
Alternatively, light-reflecting portion and non-light-reflecting portion can also be other shapes.For example：Non- light-reflecting portion can be opened in it is hollow
Hollow out circular hole on cylinder, light-reflecting portion is the entity part between adjacent hollow out circular hole.
In the present embodiment, as shown in Fig. 2 fastener 2 also includes multiple bolts 24, fastener 2 passes through bolt 24 and driving
Axle 1 is fixedly connected.Bolt 24 is held out against on the surface of drive shaft 1 through fastener 2, and bolt 24 being capable of rotary extension.
In the present embodiment, there are six bolts 24, respectively there are three bolts 24, three edges of bolt 24 in the front and back end of hollow cylinder 21
Even circumferential is spaced apart, and fastener 2 is us shown firmly attached in drive shaft 1.In the present embodiment, bolt 24 does not penetrate into drive
In moving axis 1, but hold out against on the periphery of drive shaft 1.By being threaded in or out bolt 24, go for different sizes
The drive shaft 1 of size.Meanwhile, it is also convenient for the dismounting of fastener 2.
In the present embodiment, as shown in Fig. 2 hollow cylinder 21 is put together by two semicircular cylinders, two semicircular cylinders pass through spiral shell
Bolt 25 is fixedly connected.
Because drive shaft 1 receives the limitation of miscellaneous part around, fastener 2 can not be inserted in installation from the two ends of drive shaft 1.
21 points of hollow cylinder is two parts, can be assembled from the side of drive shaft 1, it is assembled after connected by bolt 25.
When dismantling fastener 2, bolt 24 is unscrewed first, then bolt 25 is removed, finally take out two pieces of semicircular cylinders.
Embodiment two：
Referring to Fig. 4, Fig. 4 is the stereogram of reflective tool in embodiment two.
In the present embodiment, non-light-reflecting portion 23 is a plurality of strip being disposed in an evenly spaced relation on the outer circumference surface of hollow cylinder 21
Shape is raised, and the strip being coated with strip projection between light absorbent, adjacent non-light-reflecting portion 23 is light-reflecting portion 22, light-reflecting portion
22 are made of high reflecting material.Strip projection is entity structure, rather than hollow out.
In embodiment two, when sensitive probe is irradiated to light absorbent, light is absorbed substantially.When sensitive probe is irradiated to
During high reflecting material, light is reflected, and light-reflecting portion 22 forms visibly different reflectance with non-light-reflecting portion 23.
Alternatively, non-light-reflecting portion 23 may also be only a plurality of uniform intervals and be distributed in length on the outer circumference surface of hollow cylinder 21
The region for being coated with light absorbent of bar shaped, it is not necessary to from outwardly convex on hollow cylinder 21.
Light-reflecting portion 22 can not also use high reflecting material to be made.Due to being coated with light absorbent at non-light-reflecting portion 23, instead
Common material is used at light portion 22, it is possible to form the reflectance substantially distinguished with non-light-reflecting portion 23.
It is preferred that non-light-reflecting portion need not can also especially be set, it is only necessary to hollow cylinder outer circumference surface it is uniform
Interval coating high reflecting material formation light-reflecting portion.Region between adjacent light-reflecting portion is non-light-reflecting portion.As long as can make reflective
Portion and the part of surrounding form the reflectance substantially distinguished, and belong to protection domain of the present utility model.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that for the general of this area
For logical technical staff, on the basis of the utility model principle, some other modifications can also be made, this practicality is also should be regarded as
New protection domain.
Claims (10)
1. a kind of reflective tool of photoelectric whirl table, including light-reflecting portion, it is characterised in that also including detachable fastener,
The fastener is used for the periphery for being fixed on drive shaft, and the fastener includes hollow cylinder, and the hollow cylinder is used for
It is set in outside the drive shaft, the hollow cylinder and the drive shaft are coaxially arranged, the light-reflecting portion has multiple and along institute
State the even circumferential interval setting of hollow cylinder.
2. reflective tool according to claim 1, it is characterised in that be additionally provided with the hollow cylinder multiple non-reflective
Portion, circumference of the non-light-reflecting portion with the light-reflecting portion along the hollow cylinder is arranged one by one successively.
3. reflective tool according to claim 2, it is characterised in that the non-light-reflecting portion is to be opened in the hollow cylinder
On void region.
4. reflective tool according to claim 3, it is characterised in that the light-reflecting portion is the reality between the void region
Body region.
5. reflective tool according to claim 2, it is characterised in that the non-light-reflecting portion is to be coated with the area of light absorbent
Domain.
6. the reflective tool according to claim 3 or 5, it is characterised in that the light-reflecting portion is made of high reflecting material.
7. reflective tool according to claim 2, it is characterised in that the light-reflecting portion and the non-light-reflecting portion are along described
The strip of the axis direction of hollow cylinder.
8. reflective tool according to claim 1, it is characterised in that the fastener also includes multiple bolts, described tight
Firmware is fixedly connected by the bolt with the drive shaft.
9. reflective tool according to claim 8, it is characterised in that the bolt is held out against described through the fastener
The surface of drive shaft, the bolt being capable of rotary extension.
10. reflective tool according to claim 1, it is characterised in that the hollow cylinder is by two semicircular cylinder splits
Into two semicircular cylinders are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456653.1U CN206339567U (en) | 2016-12-28 | 2016-12-28 | Reflection jig of photoelectric tachometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456653.1U CN206339567U (en) | 2016-12-28 | 2016-12-28 | Reflection jig of photoelectric tachometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206339567U true CN206339567U (en) | 2017-07-18 |
Family
ID=59303390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621456653.1U Expired - Fee Related CN206339567U (en) | 2016-12-28 | 2016-12-28 | Reflection jig of photoelectric tachometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206339567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965776A (en) * | 2017-12-23 | 2019-07-05 | 天佑电器（苏州）有限公司 | Driving device and burnisher |
-
2016
- 2016-12-28 CN CN201621456653.1U patent/CN206339567U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965776A (en) * | 2017-12-23 | 2019-07-05 | 天佑电器（苏州）有限公司 | Driving device and burnisher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2466131A2 (en) | Systems and methods for monitoring a condition of a rotor blade for a wind turbine | |
| CN206339567U (en) | Reflection jig of photoelectric tachometer | |
| KR20120060756A (en) | Aerofoil | |
| CN207662391U (en) | A kind of soft soil foundation settlement automatic monitoring device | |
| CN206208506U (en) | Propeller testboard bay | |
| CN205940348U (en) | Support lateral runout examines utensil | |
| CN205895992U (en) | Yaw brake and use this yaw brake's aerogenerator | |
| CN108267323A (en) | A kind of New energy automobile motor magnetic detection device | |
| CN207982752U (en) | Device in a kind of shaft coupling school | |
| CN205715471U (en) | Reducing gear and reductor | |
| CN208648061U (en) | Disk etc. divides driving mechanism | |
| CN208702890U (en) | High intensity assembly mandrel | |
| CN110779587B (en) | Flow meter | |
| CN106840794A (en) | A kind of pile foundation preparation method for model test | |
| CN208984658U (en) | A kind of rotation-speed measuring device | |
| CN204214429U (en) | Measure connecting rod internal bore profile degree supporting and positioning device | |
| CN209366432U (en) | A kind of static state shipboard test propeller | |
| CN112763742B (en) | Rotor speed sensor mounting structure | |
| CN209166328U (en) | A kind of diesel generating set transmission shaft concentricity rapid measurement device | |
| CN103206916B (en) | A kind of signal acquisition method with V-notch revolving meber rotational angle | |
| CN207145588U (en) | The three-step gear shift sprocket wheel manufactured by powder metallurgical technique | |
| CN206255056U (en) | A kind of steering control device installed of feeling relieved | |
| CN203502035U (en) | Static grating and light source pipe combination module | |
| CN206177189U (en) | Steel pipe measuring device | |
| CN216791663U (en) | Dragging torque measuring tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |