CN209574658U - A kind of gear drive - Google Patents

Abstract

The utility model provides a kind of gear drive, the mechanism includes bracket, first motor, first gear, shaft and circuit board, the first motor, first gear, shaft and circuit board are respectively provided on the bracket, the output shaft of the first motor is equipped with the gear meshing device being connected with the first gear, the first gear is adapted with the shaft, and it is equipped with multiple for installing the through-hole of eyeglass, the stepless regulator for controlling the eyeglass rotation is additionally provided on the bracket, the first motor and the stepless regulator are and circuit board electrical connection.The beneficial effect of the gear drive of the utility model is clearly: structure is simple, at low cost, and precision is high, using wide, especially suitable in the detection system of astigmatism degree or axis of astigmatism.

Description

A kind of gear drive

Technical field

The utility model relates to optometry equipment technical field more particularly to a kind of gear drives.

Background technique

With the high speed development of social economy, requirement of the people to the every aspect of life is also higher and higher, in concern child It is virgin with eye situation when be also such.Currently, myopia population increases year by year, and in the trend development to become younger.Many times, Scientific optometry is to understand an important evidence of child's eyes status, especially astigmatism degree and axis of astigmatism.

Since the level of optist is irregular, this is difficult to the detection accuracy for guaranteeing astigmatism degree and axis of astigmatism, very To the technical requirements that optometry accuracy is not achieved.Therefore, it is necessary to solve above-mentioned ask by a kind of higher optometry equipment of precision Topic, to meet the needs of current social.

Summary of the invention

The utility model is in order to solve the problems, such as that it is higher to cannot achieve precision for general optometry equipment in the prior art, provides one Kind gear drive.

To achieve the goals above, the utility model takes following technical proposals: a kind of gear drive, the mechanism Including bracket, first motor, first gear, shaft and circuit board, the first motor, first gear, shaft and circuit board are equal On the bracket, the output shaft of the first motor is equipped with the gear meshing device being connected with the first gear, institute for setting It states first gear to be adapted with the shaft, and is equipped with multiple through-holes for being used to install eyeglass, be additionally provided with and be used on the bracket The stepless regulator of the eyeglass rotation is controlled, the first motor and the stepless regulator are electrically connected with circuit board It connects.

Bracket is the engraved structure of thin-walled for installing the components of the mechanism, and materials save, and cost is relatively low；First electricity Machine provides driving force for first gear, is meshed by the gear meshing device with first gear, realizes that multi-gear engagement passes Dynamic, stable, transmission efficiency and transmission accuracy are higher；Stepless regulator, for controlling the rotation of the eyeglass, the mirror Piece rotation, and the stepless fine adjustment of angle is carried out, greatly improve the precision of detection；Circuit board, for control the first motor and The movement of the stepless regulator；In further design scheme, the circuit board is equipped with and first motor and the nothing Digital signal processing module, the display module of grade regulating device, the circuit board is for receiving the first motor and the nothing The electric signal is carried out the result of digitized processing, final output or display detection by the electric signal of grade regulating device respectively.

When the mechanism is applied to optometry equipment, the first instruction is sent to first motor by startup power supply, circuit board, the The output shaft of one motor rotates and the gear meshing device is driven to work；By the operation of optist and the cooperation of patient, make First gear is obtained to rotate one of them described eyeglass to target position, the first signal of board receiver target position；Then Second instruction is sent to stepless regulator, the eyeglass rotation by circuit board, and is rotated to patient and seen the clearest position of sighting target It sets, board receiver second signal；By the digitized processing to the first signal and the second signal, circuit board output or display inspection The result of survey.

According to one embodiment of the utility model, the eyeglass is cylindrical mirror.Cylindrical mirror, structure is simple, for detecting patient's Astigmatism degree.

According to one embodiment of the utility model, the eyeglass is prism.Prism, structure is simple, for detecting patient's Axis of astigmatism.

According to one embodiment of the utility model, the gear meshing device is by the first driving wheel, the first driven wheel, connecting rod With driving wheel group at first driving wheel is connected with the output shaft of first motor, first driven wheel and the first driving wheel It is meshed, the both ends of the connecting rod are mutually fixed with the first driven wheel, driving wheel respectively, and the driving wheel is mutually nibbled with first gear It closes.

According to one embodiment of the utility model, the stepless regulator is by gear meshing device and the second motor group At second motor and circuit board electrical connection.

According to one embodiment of the utility model, the stepless regulator by the second motor, the second driving wheel, second from Driving wheel, bidentate gear and second gear composition, the output shaft of second motor are connected with the second driving wheel, and described second actively Wheel is meshed with the second driven wheel, and second driven wheel is meshed with the small-diameter gear portion of the bidentate gear, the bidentate The large diameter gear portion of gear is meshed with the second gear, and the second gear is adapted with through-hole, and for installing the eyeglass.

According to one embodiment of the utility model, all gears are made of composite material.Here composite wood Material refers to nonmetallic composite material, and while mitigating the mechanism weight, cost is greatly reduced.

According to one embodiment of the utility model, all gears are made of nonmetallic materials.By non-metallic material Cost is greatly reduced while mitigating the mechanism weight in gear made of expecting.

According to one embodiment of the utility model, the mechanism is two pieces.When being implemented on optometry, patient's eyes are realized Synchronous optometry, improves efficiency.

The beneficial effect of the gear drive of the utility model is clearly:

1. in the detection by astigmatism degree or axis of astigmatism that gear engagement structure is applied to patient, not only structure letter It is single, and produce and process conveniently, cost is relatively low；

2. by the structure innovation of stepless regulator, when detecting the axis of astigmatism or astigmatism degree of patient, the second tooth The fine tuning of wheel has continuity, greatly improves detection accuracy；

3. the gear made of nonmetallic composite material is greatly reduced the dosage of metal material, further reduces the cost；

4. the gear drive can be also used for its other party of patient's eyeball when the eyeglass is other lenses Face detection；

5. the gear drive is suitable for high magnification magnifying glass, telescope or day when the eyeglass is convex lens Literary telescope；When the eyeglass is magnetic lenses, the gear drive is suitable for ion microscope；When the eyeglass is electricity When sub-lens, the gear drive is suitable for electron microscope；The gear drive is widely used.

It is to be appreciated that the introduction of the utility model does not need to realize whole beneficial effects recited above, but The specific technical effect that specific technical solution may be implemented, and the other embodiments of the utility model can also be realized The beneficial effect that do not mention above.

Detailed description of the invention

The following detailed description is read with reference to the accompanying drawings, the utility model illustrative embodiments above-mentioned and other Objects, features and advantages will become prone to understand.In the accompanying drawings, it is practical new that this is shown by way of example rather than limitation Several embodiments of type, in which:

In the accompanying drawings, identical or corresponding label indicates identical or corresponding part.

Fig. 1 illustrates the first structural schematic diagram of the gear drive of the utility model；

Fig. 2 illustrates a kind of side view of the utility model Fig. 1 after striking；

Fig. 3 illustrates second of structural schematic diagram of the gear drive of the utility model；

Fig. 4 illustrates a kind of side view of the utility model Fig. 3 after striking.

Specific embodiment

It is practical new below in conjunction with this to keep the purpose of this utility model, feature, advantage more obvious and understandable Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is only the utility model a part of the embodiment, and not all embodiments.Based on the implementation in the utility model Example, those skilled in the art's every other embodiment obtained without making creative work, belongs to this reality With novel protected range.

The principles of the present invention and spirit are described below with reference to several illustrative embodiments.It should be appreciated that giving These embodiments are out just for the sake of making those skilled in the art can better understand that realize the utility model in turn, and simultaneously It is non-to limit the scope of the utility model in any way.On the contrary, thesing embodiments are provided so that the utility model more It is thorough and complete, and the scope of the utility model can be completely communicated to those skilled in the art.

The technical solution of the utility model is further elaborated in the following with reference to the drawings and specific embodiments.

In conjunction with Fig. 1, the utility model provides a kind of gear drive, and the mechanism includes bracket 1, first motor 2, One gear 3, shaft 4 and circuit board 5, first motor 2, first gear 3, shaft 4 and circuit board 5 are arranged on bracket 1, and first The output shaft of motor 2 is equipped with the gear meshing device being connected with first gear 3, and first gear 3 is adapted with shaft 4, and is equipped with It is multiple for installing the through-holes of eyeglass 6, the stepless regulator for controlling the rotation of eyeglass 6, first motor are additionally provided on bracket 1 2 and stepless regulator be electrically connected with circuit board 5.

When the mechanism is applied to optometry equipment, the first instruction is sent to first motor 2 by startup power supply, circuit board 5, The output shaft of first motor 2 rotates and gear meshing device is driven to work；By the operation of optist and the cooperation of patient, so that First gear 3 rotates one of eyeglass to target position, and circuit board 5 receives the first signal of target position；Then circuit Second instruction is sent to stepless regulator, eyeglass rotation by plate 5, and is rotated to patient and seen the clearest position of sighting target, circuit Plate 5 receives second signal；By the digitized processing to the first signal and the second signal, the knot of circuit board output or display detection Fruit.

Herein, circuit board 5 is equipped with aobvious with the digital signal processing module of first motor 2 and stepless regulator, output Show module.

By the optometry of said gear transmission mechanism, final axis of astigmatism or final astigmatism degree that circuit board 5 exports Accuracy and precision are very high.

According to one embodiment of the utility model, eyeglass 6 is cylindrical mirror.The cylindrical mirror is used to detect the astigmatism of patient Number.

According to one embodiment of the utility model, eyeglass 6 is prism.The prism is used to detect the astigmatism axis of patient Position.

In conjunction with Fig. 2, according to one embodiment of the utility model, gear meshing device is by the first driving wheel 7, the first driven wheel 8, connecting rod 9 and driving wheel 10 form, and the first driving wheel 7 is connected with the output shaft of first motor 2, and the first driven wheel 8 and first is main Driving wheel 7 is meshed, and the both ends of connecting rod 9 are fixed with the first driven wheel 8,10 phase of driving wheel respectively, driving wheel 10 and 3 phase of first gear Engagement.

In conjunction with Fig. 3 and 4, according to one embodiment of the utility model, stepless regulator is by gear meshing device and second Motor 11 forms, and the second motor 11 is electrically connected with circuit board 5.

In conjunction with Fig. 2, according to one embodiment of the utility model, stepless regulator is by the second motor 11, the second driving wheel 12, the second driven wheel 13, bidentate gear 14 and second gear 15 form, output shaft and 12 phase of the second driving wheel of the second motor 11 Even, the second driving wheel 12 is meshed with the second driven wheel 13, the small-diameter gear portion of the second driven wheel 13 and the bidentate gear 14 It is meshed, the large diameter gear portion of bidentate gear 14 is meshed with second gear 15, and second gear 15 is adapted with through-hole, and is used for Eyeglass 6 is installed.

In this embodiment, bidentate gear refers to the into a single integrated structure combination tooth of two gear sets of different-diameter Wheel, wherein the lesser part of diameter is set as small-diameter gear portion, and the part being relatively large in diameter is set as large diameter gear portion；In order to produce and add Work is convenient, and further reduces the cost, and the rotating device can also be made of the second motor and double gear.

According to one embodiment of the utility model, gear is made of composite material.

According to one embodiment of the utility model, gear is made of nonmetallic materials.

According to one embodiment of the utility model, the mechanism is two pieces.

According to one embodiment of the utility model, first gear 3 is equipped with the sensor I being electrically connected with circuit board 5.

According to one embodiment of the utility model, the second gear 15 is equipped with the sensor being electrically connected with circuit board 5 II。

Here sensor I refers to angular speed/displacement for detecting first gear, and sensor II refers to for detecting the Angular speed/displacement of two gears, in the mechanism for implementing, circuit board 5 obtains the electric signal of the angular speed/displacement and progress Digital processing, the precision for exporting result are higher；In a preferred approach, sensor I and sensor II generally use Hall element or Photoelectric sensor.The relative displacement between first gear 3 and second gear 15 can be calculated according to the measurement result of sensor, from And circuit board 5 can be made to implement based on the feedback of measurement result to more accurate opposite between first gear 3 and second gear 15 Bit andits control.

According to one embodiment of the utility model, the mechanism further includes interfacial level controller, the interfacial level controller and electricity Road plate 5 is wirelessly connected, and is equipped with the reset key for restoring the mechanism to original state.

By controlling the circuit board 5, the first motor 3 and the second motor 11 is driven to work, interfacial level controller can be with The movement of the mechanism is remotely controlled, more intelligent, more convenient operation；In a preferred approach, interfacial level controller can be hand Mechanical, electrical brain or tablet computer etc. have the functional modules such as input module, display module, can also increase visual chart and projection Module is further simplified and facilitates and implements optometry operation.

It need to be noted that: embodiments described above, the description with preceding method embodiment are similar, tools There is the similar beneficial effect of same embodiment of the method, therefore does not repeat them here.For technology undisclosed in the utility model embodiment Details please refers to the description of the utility model embodiment of the method and understands, to save length, therefore repeats no more.

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include more elements not only include those elements, but also Including other elements that are not explicitly listed, or further include for this process, method, article or device intrinsic want Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element Process, method, there is also other identical elements in article or device.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power Subject to the protection scope that benefit requires.

Claims (8)

1. a kind of gear drive, which is characterized in that the mechanism includes bracket, first motor, first gear, shaft and electricity Road plate, the first motor, first gear, shaft and circuit board are respectively provided on the bracket, the output of the first motor Axis is equipped with the gear meshing device being connected with the first gear, and the first gear is adapted with the shaft, and is equipped with more It is a that the stepless regulator for controlling the eyeglass rotation is additionally provided on the bracket for installing the through-hole of eyeglass, it is described First motor and the stepless regulator are and circuit board electrical connection.

2. gear drive according to claim 1, which is characterized in that the eyeglass is cylindrical mirror.

3. gear drive according to claim 1, which is characterized in that the eyeglass is prism.

4. gear drive according to claim 1, which is characterized in that the gear meshing device is by the first active Wheel, the first driven wheel, connecting rod and driving wheel group at, first driving wheel is connected with the output shaft of first motor, described first Driven wheel is meshed with the first driving wheel, and the both ends of the connecting rod are mutually fixed with the first driven wheel, driving wheel respectively, the transmission Wheel is meshed with first gear.

5. gear drive according to claim 1, which is characterized in that the stepless regulator is engaged by gear and filled It sets and the second motor form, second motor and circuit board electrical connection.

6. gear drive according to claim 1, which is characterized in that the stepless regulator by the second motor, Second driving wheel, the second driven wheel, bidentate gear and second gear composition, the output shaft and the second driving wheel of second motor It is connected, second driving wheel is meshed with the second driven wheel, the small-diameter gear of second driven wheel and the bidentate gear Portion is meshed, and the large diameter gear portion of the bidentate gear is meshed with the second gear, and the second gear is adapted with through-hole, and For installing the eyeglass.

7. -6 any gear drive according to claim 1, which is characterized in that all gears are by compound Material is made.

8. -6 any gear drive according to claim 1, which is characterized in that the mechanism is two pieces.