CN215374215U

CN215374215U - Horizontal distribution photometer

Info

Publication number: CN215374215U
Application number: CN202121674557.5U
Authority: CN
Inventors: 章军; 董磊
Original assignee: Hangzhou Yiming Technology Co ltd
Current assignee: Hangzhou Yiming Technology Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-31
Anticipated expiration: 2031-07-22

Abstract

The utility model relates to a horizontal distribution photometer which comprises a base, a rotating platform, a main vertical arm and a secondary vertical arm, wherein the rotating platform is arranged on the base, the main vertical arm and the secondary vertical arm are arranged on the rotating platform, the base comprises a rotating disc, a rotary speed reducer and a fixed disc, the rotating disc is fixedly connected with an output flange of the rotary speed reducer, the fixed disc is fixedly connected with a mounting seat of the rotary speed reducer, shaft holes are formed in the rotary speed reducer and the fixed disc, a mounting shaft penetrates through the shaft holes, the upper end of the mounting shaft is fixedly connected with the rotating disc, the lower end of the mounting shaft penetrates through the shaft hole of the fixed disc, an angle encoder is arranged at the lower end of the mounting shaft, and a conductive sliding ring is sleeved on the mounting shaft. The horizontal distribution photometer has the advantages of large turning radius, strong and weak electric signal separation, safety, reliability and wide application range.

Description

Horizontal distribution photometer

Technical Field

The utility model relates to a photometer, in particular to a horizontal distribution photometer.

Background

The distribution photometer is mainly used for measuring the light distribution performance of the lamp and the light source, namely, the luminosity and the chromaticity value distribution of the lamp laser source in different spatial directions. The horizontal distribution photometer is widely applied to testing the light intensity distribution and the total luminous flux of the lamp or the light source. The distribution photometer generally measures the total luminous flux of the lamp by adopting an illuminance integration method, namely, a luminosity detector is kept still, a measured light source or the lamp respectively rotates on a horizontal plane and a vertical plane around the luminosity center of the measured light source or the lamp, a proper angle interval is selected when emitted light reaches the whole angle area, and the illuminance of each point on a virtual sphere taking the measurement distance between the luminosity detector of the distribution photometer and the luminous center of an LED to be measured as the radius is measured.

Publication number CN 201653543U's utility model discloses a distribution photometer revolving stage, characterized by: including the revolving stage base, install bearing frame on this revolving stage base, install perpendicular main shaft and calibrated scale on the bearing frame, install drive through drive mechanism on the bearing frame the rotatory motor of perpendicular main shaft, perpendicular main shaft on be equipped with and prevent wire-wound conductive slip ring perpendicular main shaft on install the horizontal migration revolving stage, install perpendicular support on this horizontal migration revolving stage, install the horizontal rotation drive arrangement who takes the output shaft on this perpendicular support, the output shaft on install power supply terminal and staple bolt formula chuck, staple bolt formula chuck on install special fixture. The rotating platform of the distribution photometer has the following defects: the large-size worm and gear speed reducer is adopted to drive the horizontal rotating platform to rotate, the base is high in height, the maximum turning radius of the lamp can be influenced due to the fact that the center height of the instrument is too high when the limited indoor space is measured, the lamp to be measured is supported by the unilateral vertical support, and the supporting structure is unstable, so that the rotating platform of the distributed photometer cannot finish measurement of large-size lamps with large size and weight.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the horizontal distribution photometer which has the advantages of large lamp turning radius, wide application range and separation of strong and weak electric signals.

In order to achieve the purpose, the utility model provides a horizontal distribution photometer which comprises a base, a rotating platform, a main vertical arm and a secondary vertical arm, wherein the rotating platform is arranged on the base, the main vertical arm and the secondary vertical arm are arranged on the rotating platform, the base comprises a rotating disc, a rotary speed reducer and a fixed disc, the rotary speed reducer comprises an output flange and an installation seat, the rotating disc is fixedly connected with the output flange of the rotary speed reducer, the fixed disc is fixedly connected with the installation seat of the rotary speed reducer, shaft holes are formed in the rotary speed reducer and the fixed disc, an installation shaft penetrates through the shaft holes, the installation shaft and the shaft holes are concentrically arranged, the upper end of the installation shaft is fixed with the rotating disc, the lower end of the installation shaft penetrates through the shaft holes of the fixed disc, an angle encoder is arranged at the lower end of the installation shaft, and a conductive sliding ring is sleeved on the installation shaft.

Furthermore, the conductive slip ring comprises a weak current conductive slip ring and a strong current conductive slip ring which are mutually isolated, the weak current conductive slip ring is positioned below the strong current conductive slip ring, and an insulating layer is arranged between the weak current conductive slip ring and the strong current conductive slip ring.

Furthermore, the outer side of one section of the mounting shaft penetrating out of the shaft hole of the fixed disc is covered with a protective cover, and the protective cover is arranged on the outer side of the weak current conductive slip ring.

Furthermore, the bottom surface of the rotary platform is fixedly connected with the rotating disc of the base, the top surface of the rotary platform is fixedly connected with the main vertical arm and the auxiliary vertical arm, a guide rail, a platen installed on the guide rail, an adjustable speed motor and a lead screw installed on an output shaft of the adjustable speed motor are arranged on the top surface of the rotary platform, a lead screw nut is arranged on the platen, and the lead screw nut is in threaded connection with the lead screw.

Further, the bottom of the main vertical arm or the slave vertical arm is fixedly connected above the bedplate.

Furthermore, a driving mechanism is arranged on the main vertical arm, and a driven mechanism is correspondingly arranged on the auxiliary vertical arm.

Furthermore, the driving mechanism and the driven mechanism are provided with mounting discs.

Furthermore, a driving motor is arranged in the driving mechanism.

Furthermore, the weak current conductive slip ring is electrically connected with the rotary speed reducer, the speed regulating motor and the driving motor on the driving mechanism, and the strong current conductive slip ring is electrically connected with the mounting plate.

Furthermore, the driving mechanism and the driven mechanism are respectively connected with the main vertical arm and the auxiliary vertical arm through slide rails.

Compared with the prior art, the utility model has the beneficial effects that: the rotary speed reducer with a central shaft hole is adopted to replace a worm gear speed reducer in the prior art, the size and the height of the base are reduced, and the rotary radius of the lamp in the vertical direction is increased under the same installation height; the conductive slip ring is divided into a strong current conductive slip ring and a weak current conductive slip ring, so that strong current and weak current are separated, and interference of strong current signals on weak current signals is avoided; the adjustable installation space between the main vertical arm and the auxiliary vertical arm is realized through the speed regulating motor and the transmission mechanism thereof, the measurement requirements of various lamps can be met, and the application range is wide.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the interior of a base according to an embodiment of the present invention;

FIG. 3 is a partial top view of a rotating platform according to an embodiment of the present invention.

Wherein the reference numerals are: 10. a base; 11. rotating the disc; 12. a rotary speed reducer; 13. fixing the disc; 14. an output shaft; 15. an output flange; 16. a strong current conducting slip ring; 17. a weak current conductive slip ring; 18. an angle encoder; 19. a protective cover; 20. rotating the platform; 21. a guide rail; 22. a platen; 23. a speed-regulating motor; 24. a screw rod; 30. a main vertical arm; 31. a slave arm; 32. a drive mechanism; 33. a driven mechanism; 34. and (7) mounting a disc.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some embodiments of the utility model, but not all embodiments. Embodiments of the present invention are described below with reference to the drawings.

As shown in fig. 1, a horizontal distribution photometer includes a base 10, a rotary platform 20, a main arm 30, and a sub arm 31, wherein the rotary platform 20 is mounted on the base 10 at a bottom surface thereof, and the main arm 30 and the sub arm 31 are respectively mounted on both sides of the rotary platform 20. The base 10 comprises a shell, supporting legs and universal wheels are arranged at the bottom of the shell, the number of the supporting legs is four, the universal wheels and the supporting legs are arranged in pairs and are respectively arranged at four corners of the bottom of the base 10, the supporting legs are in threaded connection with the bottom surface of the shell, and the heights of the supporting legs can be adjusted by adjusting threads. The main vertical arm 30 is provided with a driving mechanism 32, the driven mechanism 33 is mounted on the auxiliary vertical arm 31, and the driving mechanism 32 and the driven mechanism 33 are both provided with a mounting plate 33 for mounting a lamp to be tested. The lamp to be tested is installed between the main vertical arm 30 and the lamp holder 33 of the auxiliary vertical arm 31, and is driven to rotate along the horizontal shaft by the driving mechanism 32 on the main vertical arm 30.

As shown in fig. 2, the base 10 includes a rotating disc 11, a rotary speed reducer 12, and a fixed disc 13, which are sequentially disposed from top to bottom, the rotary speed reducer 12 includes an output flange 15 and a mounting seat, the output flange 15 is fixedly connected to the rotating disc 11 and drives the rotating disc 11 to rotate along a water plane, the fixed disc 13 is fixedly connected to the mounting seat of the rotary speed reducer 12 and a housing of the base 10, and the fixed disc 13 is used for fixing the rotary speed reducer 12. The rotary speed reducer comprises a shaft hole located in the center, the fixed disc 13 is correspondingly provided with a shaft hole with the same diameter as that of the shaft hole of the rotary speed reducer 12, an installation shaft 14 penetrates through the shaft holes of the fixed disc 13 and the rotary speed reducer 12, the installation shaft 14 and the shaft hole are concentrically arranged, the upper end of the installation shaft 14 is fixedly connected with the rotating disc 11, the tail end of the installation shaft 14 penetrates through the shaft hole and is fixedly connected with an angle encoder 18, and the angle encoder 18 is used for measuring the rotating angle of the installation shaft 14 along the vertical shaft, so that the rotating angle of the rotating platform 20 can be obtained. The installation shaft 14 is sleeved with a strong current conductive slip ring 16 and a weak current conductive slip ring 17, the strong current conductive slip ring 16 and the weak current conductive slip ring 17 are both connected with the installation shaft 14 in a relatively rotatable manner, the strong current conductive slip ring 16 is positioned above the weak current conductive slip ring 17, an insulating isolation strip or an insulating isolation layer is arranged between the strong current conductive slip ring 16 and the weak current conductive slip ring 17, a part of the installation shaft 14 penetrating out of a shaft hole is covered with a protective cover 19, the protective cover 19 is set to be of a barrel structure, the open end of the protective cover is covered on the bottom surface of the fixed disc 13, and the closed end of the barrel bottom is clamped between the installation shaft 14 and the angle encoder 18, so that the installation shaft 14 and the weak current conductive slip ring 17 are positioned in a barrel containing space of the protective cover 19. The strong current conductive slip ring 16 is electrically connected with the mounting disc 34 and is electrically connected with the lamp to be tested through the mounting disc 34, the weak current conductive slip ring 16 is electrically connected with the rotary speed reducer 12, the speed regulating motor 23 and the driving motor in the driving mechanism 32, the rotary speed reducer is adopted to replace a turbine worm speed reducer in the prior art, and the rotary speed reducer 12 is provided with a shaft hole, so that the space in the shaft hole can be fully utilized to install mechanisms such as a mounting shaft, a conductive slip ring and the like, the height of a base is reduced, and the maximum rotary radius of the lamp to be tested along a horizontal shaft is increased under the condition that the overall height of the photometer is not increased; meanwhile, a double-conductive sliding ring structure of a strong current conductive sliding ring 16 and a weak current conductive sliding ring 17 is adopted to simultaneously electrify the lamp to be tested and each motor, and an insulating isolation layer is arranged between the strong current conductive sliding ring 16 and the weak current conductive sliding ring 17, so that strong and weak electric signals are separated, and mutual interference of the electric signals is prevented.

As shown in fig. 3, two guide rails 21 are arranged in parallel on the top surface of the rotating platform 20, a platen 22 which can slide along the guide rails is arranged between the two guide rails 21, an adjustable speed motor 23 is further arranged on the top surface of the rotating platform 20, a lead screw 24 is fixedly connected to an output shaft of the adjustable speed motor 23, the lead screw 24 is arranged in parallel with the guide rails 21 and located between the two guide rails 21, a pulley is arranged at the tail end of the lead screw 24, the pulley is fixed on the rotating platform 20 through a fastener, a lead screw nut is sleeved on the lead screw 24 and fixedly connected with the platen 22, the lead screw 24 rotates under the driving of the adjustable speed motor 23, and the lead screw nut moves on the lead screw 24 along with the rotation of the lead screw 24, so as to drive the platen 22 to move on the guide rails 21. The bedplate 22 is fixedly connected with the main vertical arm 30, the main vertical arm 30 moves along with the bedplate 22 when the speed regulating motor 33 drives the bedplate 22 to move through the screw rod 24, and the distance between the main vertical arm 30 and the auxiliary vertical arm 31 changes along with the movement. When the lamp is installed, firstly, the distance between the main vertical arm 30 and the auxiliary vertical arm 31 is increased through the speed regulating motor 23 and the transmission mechanism, then, the lamp installation clamp to be tested is installed between the main vertical arm 30 and the auxiliary vertical arm 31, and then, the speed regulating motor 23 is controlled to rotate reversely, so that the distance between the main vertical arm 30 and the auxiliary vertical arm 31 is reduced, and the lamp installation clamp to be tested is clamped. The distance between the main vertical arm 30 and the auxiliary vertical arm 31 can be adjusted through the speed regulating motor 23 and the transmission mechanism thereof, so that the distribution photometer is suitable for lamp mounting fixtures of different specifications, and can measure lamps or chips of different specifications.

When the horizontal distribution photometer of the utility model is used for measuring the illumination parameters of the lamp, firstly, the distance between the main vertical arm 30 and the auxiliary vertical arm 31 is suitable for installing the installation clamp of the lamp to be measured by controlling the speed regulating motor 23, the lamp to be measured is installed on the installation clamp of the lamp to be measured, the lamp to be measured and the installation clamp thereof are installed between the main vertical arm 30 and the installation disc 34 of the auxiliary vertical arm 31, then the lamp to be tested is electrified and the driving mechanism 32 of the main vertical arm 30 is started to drive the lamp to be tested to rotate along the horizontal shaft, and/or the tested lamp rotates along the vertical axis by starting the rotary speed reducer 12, and finally, the illumination parameters of each angle of the tested lamp are measured by a detection device arranged outside the distribution photometer (namely, the fixed center of the tested lamp is fixed, the detection device regularly moves on a sphere with the tested lamp as the sphere center, and the light intensity data is collected in real time).

In conclusion, the horizontal distribution photometer of the utility model adopts the rotary speed reducer 12 to replace a turbine worm speed reducer in the prior art, reduces the height of the base 10 through reasonable spatial arrangement, and increases the rotary radius of the lamp without increasing the overall height of the instrument; strong and weak electric signals are separated by arranging a strong electric conduction slip ring 16 and a weak electric conduction slip ring 17, so that the electric signal interference is prevented; the adjustable installation distance of the lamp is realized through the speed regulating motor 23 and the transmission structure thereof, and the installation clamps of various types are matched, so that the horizontal distribution photometer can meet the measurement requirements of lamps of various specifications or light emitting chips.

While the utility model has been described with reference to specific embodiments, it should be understood that the above description is intended to illustrate the utility model and should not be taken as limiting the scope of the utility model in any way. Based on the explanations herein, those skilled in the art will appreciate that other embodiments of the present invention or equivalents thereof without inventive step, are also within the scope of the present invention.

Claims

1. The utility model provides a horizontal distribution photometer, includes base, rotary platform, the main arm that stands and stands from the arm, rotary platform set up in on the base, the main arm that stands and set up in from the arm that stands in rotary platform is last, its characterized in that, the base includes rolling disc, rotary speed reducer and fixed disk, the rolling disc with rotary speed reducer output flange fixed connection, the fixed disk in rotary speed reducer mount pad fixed connection, the rotary speed reducer with be equipped with the shaft hole on the fixed disk, wear to be equipped with the installation axle in the shaft hole, the installation axle with the shaft hole is concentric setting, install the axle upper end with rolling disc fixed connection, the installation axle lower extreme is worn out the shaft hole of fixed disk, installation axle lower extreme is provided with angle encoder, the epaxial cover of installation is equipped with electrically conductive sliding ring.

2. The horizontal distribution photometer of claim 1, wherein the conductive slip ring comprises a weak current conductive slip ring and a strong current conductive slip ring isolated from each other, the weak current conductive slip ring being located below the strong current conductive slip ring, and an insulating layer being disposed between the weak current conductive slip ring and the strong current conductive slip ring.

3. The horizontal distribution photometer of claim 2, wherein a protective cover is covered on the outer side of the section of the mounting shaft penetrating through the shaft hole of the fixed disk, and the protective cover is arranged on the outer side of the weak current conductive slip ring.

4. The horizontal distribution photometer of claim 1, wherein the bottom surface of the rotary platform is fixedly connected with the rotary disk of the base, the top surface of the rotary platform is fixedly connected with the main vertical arm and the auxiliary vertical arm, a guide rail, a platen mounted on the guide rail, an adjustable speed motor and a lead screw mounted on an output shaft of the adjustable speed motor are arranged on the top surface of the rotary platform, a lead screw nut is arranged on the platen, and the lead screw nut is in threaded connection with the lead screw.

5. The horizontal distribution photometer of claim 4, wherein the master or slave stand arm is fixedly attached at a bottom thereof above the platen.

6. The horizontal distribution photometer of claim 2, wherein the master vertical arm is provided with a driving mechanism, and the slave vertical arm is correspondingly provided with a slave mechanism.

7. The horizontal distribution photometer of claim 6, wherein the driving mechanism and the driven mechanism are provided with mounting disks.

8. The horizontal distribution photometer of claim 7, wherein a driving motor is provided in the driving mechanism.

9. The horizontal distribution photometer of claim 8, wherein the weak current conducting slip ring is electrically connected to the rotary speed reducer, the speed regulating motor and the driving motor on the driving mechanism, and the strong current conducting slip ring is electrically connected to the mounting plate.

10. The horizontal distribution photometer of claim 6, wherein the driving mechanism and the driven mechanism are connected to the master arm and the slave arm, respectively, by slide rails.