CN207946079U - A kind of angular displacement precise detection device of suitable friction-driving turntable - Google Patents
A kind of angular displacement precise detection device of suitable friction-driving turntable Download PDFInfo
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- CN207946079U CN207946079U CN201820450315.XU CN201820450315U CN207946079U CN 207946079 U CN207946079 U CN 207946079U CN 201820450315 U CN201820450315 U CN 201820450315U CN 207946079 U CN207946079 U CN 207946079U
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- gear
- angular displacement
- wheel carrier
- long axis
- short axle
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Abstract
The utility model discloses a kind of angular displacement precise detection devices of suitable friction-driving turntable, are related to Stage Machinery Industry field.The device passes through the periphery setting gear in pivoting support, make to drive first gear movement when its rotary motion, first gear drives second gear rotation by long axis, second gear drives the rotation of third gear, to realize that level-one accelerates with engaging for first gear by pivoting support external tooth, second gear is engaged with third gear realizes that two level accelerates, accelerated using the two-stage, the angular displacement of actual needs detection is amplified, amplification factor is the expansion multiple of angular displacement, amplified angular displacement is measured with code-disc again, the covert resolution ratio for being exaggerated angle displacement measurement code-disc, to improve the measurement accuracy of whole rotating mechanism, turntable is set accurately to berth, and then show expected performance effect.
Description
Technical field
The utility model is related to Stage Machinery Industry field more particularly to a kind of angular displacements of suitable friction-driving turntable
Precise detection device.
Background technology
In stage performance, turntable is widely used, to meet stage performance, needs accurately to detect turntable angular displacement,
To realize the accurate positionin of turntable at an arbitrary position.
In the turntable of friction wheel drive, in order to avoid the measurement error caused by skidding, angle displacement measurement code-disc is general
It is placed on load end to measure, however turntable angular speed in the actual use of stage machinery is often relatively low, angular displacement ratio
Smaller (with other industry ratio, maximum value is only 2 π), precision of berthing is again relatively high, and the resolution ratio of angle displacement measurement code-disc can not
Meet the angular displacement positioning accuracy of turntable, so, using existing measurement method, it is inaccurate usually to will appear turntable angle displacement measurement
True situation, and angle displacement measurement inaccuracy will result in turntable parking place and be not allowed, the larger problem of deviation, to influence
Performance effect.
Utility model content
The purpose of this utility model is to provide a kind of angular displacement precise detection device of suitable friction-driving turntable, from
And solve foregoing problems existing in the prior art.
To achieve the goals above, the technical solution adopted in the utility model is as follows：
A kind of angular displacement precise detection device of suitable friction-driving turntable, including:Central turret, revolving support,
One gear, long axis, wheel carrier, second gear, short axle, third gear, encoder, wheel carrier mounting plate and rack, the central turret
It is felt relieved by the pivoting support and is connect with the rack, the long axis, short axle are installed on the wheel carrier, the wheel carrier
On the wheel carrier mounting plate, the wheel carrier mounting plate is mounted in the rack, the first gear and described second
Gear is separately mounted on the long axis, and the third gear is mounted in the short axle, and the encoder is mounted on described short
The periphery of the end of axis, the revolving support is provided with gear, and the first gear and the gear of revolving support periphery are nibbled
It closes, the second gear is engaged with the third gear.
Preferably, the gear of the revolving support periphery setting is fine module gear.
Preferably, it is provided with adjusting pad between the wheel carrier and the wheel carrier mounting plate.
Preferably, the long axis and the short axle are installed in parallel on the wheel carrier, and the first gear is mounted on described
The upper end of long axis, the second gear are mounted on the lower end of the long axis, and the third gear is mounted on the upper end of the short axle,
The encoder is mounted on the lower end of the short axle.
The utility model has the beneficial effects that：A kind of suitable friction-driving turntable that the utility model embodiment provides
Angular displacement precise detection device makes to drive first gear fortune when its rotary motion by the periphery setting gear in pivoting support
Dynamic, first gear drives second gear to rotate by long axis, and second gear drives the rotation of third gear, to pass through pivoting support
Engaging for external tooth and first gear realizes that level-one accelerates, and second gear engage realization two level acceleration with third gear, using this two
Grade accelerates, and the angular displacement of actual needs detection is amplified, amplification factor is the expansion multiple of angular displacement, amplified angle
Displacement is measured with code-disc again, the covert resolution ratio for being exaggerated angle displacement measurement code-disc, to improve entire whirler
The measurement accuracy of structure, enables turntable accurately to berth, and then shows expected performance effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of detection device provided by the utility model.
In figure, the meaning of each symbol is as follows：
1 central turret, 2 revolving supports, 3 first gears, 4 long axis, 5 wheel carriers, 6 second gears, 7 short axles, 8 third gears, 9
Encoder, 10 adjusting pads, 11 wheel carrier mounting plates, 12 racks.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.It should be appreciated that the specific embodiments described herein are only used to explain this practicality
It is novel, it is not used to limit the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of angular displacement precision inspection of suitable friction-driving turntable
Device is surveyed, including:Central turret 1, revolving support 2, first gear 3, long axis 4, wheel carrier 5, second gear 6, short axle 7, third tooth
Wheel 8, encoder 9, wheel carrier mounting plate 11 and rack 12, central turret 1 are felt relieved by pivoting support 2 and are connect with rack 12, long
Axis 4, short axle 7 are installed on wheel carrier 5, and wheel carrier 5 is mounted on wheel carrier mounting plate 11, and wheel carrier mounting plate 11 is mounted on rack 12
On, first gear 3 and second gear 6 are separately mounted on long axis 4, and third gear 8 is mounted in short axle 7, and encoder 9 is mounted on
The periphery of the end of short axle 7, revolving support 2 is provided with gear, and first gear 3 is engaged with the gear of 2 periphery of revolving support, and second
Gear 6 is engaged with third gear 8.
In above structure, by the periphery setting gear in pivoting support, first gear and the second tooth are set on long axis
Third gear is arranged in short axle, and is engaged with first gear by the gear of pivoting support periphery, second gear and third for wheel
Gear engages, then in use, revolving support rotation so that the gear rotation of its periphery drives first gear movement, the
One gear drives second gear rotation by long axis, and second gear drives the rotation of third gear, to pass through pivoting support external tooth
Realize that level-one accelerates with engaging for first gear, second gear is engaged with third gear realizes that two level accelerates, and adds using the two-stage
The angular displacement of actual needs detection is amplified by speed, and amplification factor is the expansion multiple of angular displacement, amplified angular displacement
It is measured again with code-disc, the covert resolution ratio for being exaggerated angle displacement measurement code-disc, to improve whole rotating mechanism
Measurement accuracy enables turntable accurately to berth, and then shows expected performance effect.
In the present embodiment, the gear of 2 periphery setting of revolving support is fine module gear.
In order to obtain the speed ratio i of bigger, according to transmission ratio formula i=Z1/Z2=n2/n1, need one-stage gear tooth number Z1More
Big better, secondary gear tooth number Z2The smaller the better, according to standard spur gear minimum, root does not cut principle, Z2Minimum value is 17, Bu Nengwu
Limit reduces, and the outer diameter of revolving support 2 determined according to load after be definite value, according to standard spur gear calculation formula d=mZ, (d is
Reference diameter, m are modulus, and Z is the number of teeth), it can make Z using fine module gear1Increase, angular displacement survey is exaggerated to reach
Measure the resolution ratio of code-disc.
In addition, because Z2Minimum value is 17, can reduce the size of secondary gear using fine module gear so that design is more
Adduction is managed and economy.
In the present embodiment, adjusting pad 10 is provided between wheel carrier 5 and wheel carrier mounting plate 11.
In gear drive, the centre-to-centre spacing precision between two gears is especially big on the influence of its transmission accuracy, if gap is excessive, just
It can make occur excessive back clearance when transmission, seriously affect its repeatable accuracy, especially in measuring mechanism, the setting of adjusting pad 10 is just
It is in order to adjust the centre-to-centre spacing of two gears, to improve the accurate type and repeatability of measurement.
In the present embodiment, long axis 4 and short axle 7 are installed in parallel on wheel carrier 5, and first gear 3 is mounted on the upper end of long axis 4,
Second gear 6 is mounted on the lower end of long axis 4, and third gear 8 is mounted on the upper end of short axle 7, and encoder 9 is mounted under short axle 7
End.
The installation parallel with short axle 7 of long axis 4 can be such that the gear installed on two axis preferably engages.Pivoting support 2 rotates, outside
The fine module gear for enclosing setting drives 3 level-one of first gear that rotation, second gear 6 is accelerated to be rotated coaxially with first gear 3, drives
8 two level of third gear accelerates rotation, encoder 9 to be rotated coaxially with third gear 8.When i.e. revolving support 2 rotates, encoder can be made
Higher rotating speed is obtained, to improve the measurement accuracy of whole rotating mechanism, turntable is enable accurately to berth.
By using above-mentioned technical proposal disclosed by the utility model, following beneficial effect has been obtained：The utility model
A kind of angular displacement precise detection device for suitable friction-driving turntable that embodiment provides, is set by the periphery in pivoting support
Gear is set, makes that first gear movement, first gear is driven to drive second gear to rotate by long axis when its rotary motion, the second tooth
Wheel drives the rotation of third gear, to realize that level-one accelerates with engaging for first gear by pivoting support external tooth, second gear
It is engaged with third gear and realizes that two level accelerates, accelerated using the two-stage, the angular displacement of actual needs detection is amplified, is amplified
Multiple is the expansion multiple of angular displacement, and amplified angular displacement is measured with code-disc again, and covert is exaggerated angular displacement survey
The resolution ratio of amount code-disc enables turntable accurately to berth, and then show to improve the measurement accuracy of whole rotating mechanism
Expected performance effect.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the scope of protection of the utility model.
Claims (4)
1. a kind of angular displacement precise detection device of suitable friction-driving turntable, which is characterized in that including:Central turret returns
Turn support, first gear, long axis, wheel carrier, second gear, short axle, third gear, encoder, wheel carrier mounting plate and rack, it is described
Central turret is felt relieved by the pivoting support and is connect with the rack, and the long axis, short axle are installed on the wheel carrier,
The wheel carrier be mounted on the wheel carrier mounting plate on, the wheel carrier mounting plate be mounted on the rack on, the first gear and
The second gear is separately mounted on the long axis, and the third gear is mounted in the short axle, the encoder installation
In the end of the short axle, the periphery of the revolving support is provided with gear, the first gear and revolving support periphery
Gear engagement, the second gear engages with the third gear.
2. the angular displacement precise detection device of suitable friction-driving turntable according to claim 1, which is characterized in that institute
The gear for stating the setting of revolving support periphery is fine module gear.
3. the angular displacement precise detection device of suitable friction-driving turntable according to claim 1, which is characterized in that institute
It states and is provided with adjusting pad between wheel carrier and the wheel carrier mounting plate.
4. the angular displacement precise detection device of suitable friction-driving turntable according to claim 1, which is characterized in that institute
It states long axis and the short axle is installed in parallel on the wheel carrier, the first gear is mounted on the upper end of the long axis, and described the
Two gears are mounted on the lower end of the long axis, and the third gear is mounted on the upper end of the short axle, and the encoder is mounted on
The lower end of the short axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820450315.XU CN207946079U (en) | 2018-04-02 | 2018-04-02 | A kind of angular displacement precise detection device of suitable friction-driving turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820450315.XU CN207946079U (en) | 2018-04-02 | 2018-04-02 | A kind of angular displacement precise detection device of suitable friction-driving turntable |
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| Publication Number | Publication Date |
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| CN207946079U true CN207946079U (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820450315.XU Active CN207946079U (en) | 2018-04-02 | 2018-04-02 | A kind of angular displacement precise detection device of suitable friction-driving turntable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116922072A (en) * | 2023-09-18 | 2023-10-24 | 广东全丰智能装备有限公司 | Rotation amount monitoring and adjusting device and method for turntable type screw locking device |
-
2018
- 2018-04-02 CN CN201820450315.XU patent/CN207946079U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116922072A (en) * | 2023-09-18 | 2023-10-24 | 广东全丰智能装备有限公司 | Rotation amount monitoring and adjusting device and method for turntable type screw locking device |
| CN116922072B (en) * | 2023-09-18 | 2023-11-17 | 广东全丰智能装备有限公司 | Rotation amount monitoring and adjusting device and method for turntable type screw locking device |
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