CN114459339A - Electrically-driven three-stage planetary reduction driver angle detection device - Google Patents

Electrically-driven three-stage planetary reduction driver angle detection device Download PDF

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Publication number
CN114459339A
CN114459339A CN202210305281.6A CN202210305281A CN114459339A CN 114459339 A CN114459339 A CN 114459339A CN 202210305281 A CN202210305281 A CN 202210305281A CN 114459339 A CN114459339 A CN 114459339A
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CN
China
Prior art keywords
angle detection
gear
angle
potentiometer
power output
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Pending
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CN202210305281.6A
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Chinese (zh)
Inventor
孙永君
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Tianjin Sneijder Precision Machinery Co ltd
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Tianjin Sneijder Precision Machinery Co ltd
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Application filed by Tianjin Sneijder Precision Machinery Co ltd filed Critical Tianjin Sneijder Precision Machinery Co ltd
Priority to CN202210305281.6A priority Critical patent/CN114459339A/en
Publication of CN114459339A publication Critical patent/CN114459339A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention discloses an angle detection device of an electrically-driven three-stage planetary reduction driver, which comprises an angle detection fluted disc, an angle detection box and a flange box cover, wherein the angle detection box is provided with a gear potentiometer meshed with the angle detection fluted disc, and the gear potentiometer is arranged on a potentiometer installation shaft in the angle detection box; an angle sensor driving shaft is arranged on the potential gear and connected with an angle sensor; the section of the angle sensor driving shaft is of a D-shaped structure, a groove which is open to the plane side of the D-shaped structure is arranged on the angle sensor driving shaft, and an elastic sheet is arranged at the opening position of the groove. Adopt above-mentioned technical scheme, after the shell fragment pressurized, the shell fragment will inwards take place to warp, and then realize the quick installation of current potential gear, and the installation is accomplished and is guaranteed that the current potential gear does not take place to drop under the effect of the elastic potential energy of shell fragment, moreover in whole operation process because the effort of shell fragment, the angle sensor drive shaft keeps the tight fit with angle sensing all the time, guarantees the accuracy of signal feedback.

Description

Electrically-driven three-stage planetary reduction driver angle detection device
Technical Field
The invention belongs to a transmission device, and particularly relates to an angle detection device of an electrically-driven three-stage planetary reduction driver, which is suitable for intelligent home and drives an automatic cover-turning cover of a cover type intelligent home product.
Background
Along with the development of economy and the improvement of the living standard of the people, the requirements of the people on bathroom appliances and even household appliances are higher and higher, and intelligent and automatic products are more and more favored in the current market. Therefore, the intelligent automation of intelligent toilet bowl, intelligent dish washer, bowl washing groove and washing machine is also higher and higher nowadays, wherein automatic flip function is exactly one of the embodiment of intelligent toilet bowl, intelligent dish washer, intelligent bowl washing groove, intelligent washing machine.
There are many electrically driven flip buffers with a driving cover plate, also called "electrically driven drivers", on the market today, and the existing electrically driven flip buffers mainly include a flip gear box, and the automatic flip of the flip is generally driven by the movement of the gear box combination with a motor controlled by a PCB board, such as driving the flip of the seat cover and the seat ring of an intelligent toilet. However, most of automatic flip-open type gear boxes in the market have large friction between a motor, a reduction gear box, a rotating shaft of the automatic flip-open type gear box and the like, high transmission ratio and high noise, and gears are easy to damage, so that the whole service life of the gear box is short (the opening and closing times are less than 1 ten thousand), the product failure rate is high, and meanwhile, the existing electric drive flip-open type buffer has large volume and large occupied space for installation.
Therefore, the applicant develops an intelligent household electric drive flip buffer which is small in size, large in output torque, compact in structure, small in friction, low in noise, stable in operation, long in service life and has a quick-opening slow-falling function, and the concrete reference is CN 108980288A; the problem of rotation angle feedback lag is found in actual use, and the gap in the connection mode of the angle sensor driving shaft and the angle sensor is detected through dismantling, so that the signal acquisition of the angle sensor has errors; moreover, at the assembled, the potentiometre gear easily drops, influences assembly efficiency, the utility model relates to a tertiary planet of electric drive speed reduction driver angle detection device has solved the hysteretic problem of signal acquisition.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the angle detection device of the electrically-driven three-stage planetary reduction driver, which has a compact structure, improves the assembly efficiency and solves the problem of angle signal acquisition lag.
The invention is realized in this way, an electrically-driven three-level planetary reduction driver angle detection device, including the angle detection fluted disc of the connection power take-off shaft, there are angle detection boxes on the gear ring shell near the power take-off shaft end, the said angle detection box installs the flange case lid, the said power take-off shaft stretches out of the flange case lid, mount the angle detection component to detect the power take-off shaft rotation angle in the angle detection box; the angle detection element adopts a gear potentiometer, the gear potentiometer is arranged on a potentiometer mounting shaft in the angle detection box, and a potentiometer gear of the gear potentiometer is meshed with an angle detection fluted disc; an angle sensor driving shaft is coaxially arranged on the potential gear and connected with an angle sensor; the cross section of the angle sensor driving shaft is of a D-shaped structure, a groove which is open to the plane side of the D-shaped structure is formed in the angle sensor driving shaft along the axial direction, and an elastic sheet is arranged at the opening position of the groove.
Preferably, the end of the elastic sheet is provided with an inclined guide surface.
Preferably, the outer circumference of the power output shaft mounting hole of the flange box cover is at least provided with an elastic clamping jaw, and the power output shaft is provided with a limiting clamping groove.
Preferably, the number of the elastic clamping jaws is 2-6, and the elastic clamping jaws are uniformly distributed on the circumference.
Preferably, an annular sealing groove is formed in the power output shaft and is sleeved with a sealing ring.
The invention has the advantages and technical effects that: due to the adoption of the technical scheme, after the elastic sheet is pressed, the elastic sheet deforms inwards, so that the potential gear is quickly installed, the potential gear is prevented from falling off under the action of elastic potential energy of the elastic sheet after installation is finished, and in the whole operation process, the driving shaft of the angle sensor is always kept in tight fit with the angle sensor due to the acting force of the elastic sheet, so that the accuracy of signal feedback is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the detection box with the angle removed and the cover of the flange box;
FIG. 3 is a schematic view of the arrangement position of the mounting shaft of the potentiometer;
FIG. 4 is a schematic view of a connection structure of the angle detecting element and the potentiometer gear;
fig. 5 and 6 are schematic perspective views of potentiometer gears.
In the figure, 1, an angle detection box; 1-1, a flange case cover; 1-101, elastic claws; 1-2, an angle detection element; 1-3 potentiometer mounting shaft; 1-4, a potentiometer gear; 1-5, an angle sensor drive shaft; 1-6, an angle sensor; 1-7, groove; 1-8, a spring plate; 2. an angle detection fluted disc; 3. a power take-off shaft; 4. and a third stage planetary reduction unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6, an angle detecting device of an electrically driven three-stage planetary reduction driver includes an angle detecting fluted disc 2 connected to a power output shaft, the angle detecting fluted disc 2 is connected to a third-stage planetary reduction unit 4, an angle detection box 1 is arranged on the gear ring shell close to the power output shaft end, a cover 1-1 of the flange is arranged on the angle detection box far away from the driving motor, the power output shaft extends out of the flange box cover, an angle detection element 1-2 for detecting the rotation angle of the power output shaft is arranged in the angle detection box, a three-stage planet wheel of the three-stage planet speed reduction unit is meshed with a three-stage sun wheel, and the three-stage speed reduction of power is realized with the internal teeth of the gear ring shell, the angle detection fluted disc is driven to rotate, the power is transmitted to the power output shaft 3, the power is output, and meanwhile, the angle detection fluted disc is driven to rotate within a set angle range.
The angle detection element adopts a gear potentiometer, the gear potentiometer is arranged on a potentiometer mounting shaft 1-3 in the angle detection box, and a potentiometer gear 1-4 of the gear potentiometer is meshed with an angle detection fluted disc 2; an angle sensor driving shaft 1-5 is coaxially arranged on the potential gear, and the angle sensor driving shaft is connected with an angle sensor 1-6. The rotation angle of the power output shaft is detected and fed back in real time through the gear potentiometer so as to reflect the opening degree of an actuating component provided with the driver.
The section of the angle sensor driving shaft is of a D-shaped structure, grooves 1-7 which are open to the plane side of the D-shaped structure are formed in the angle sensor driving shaft in the axial direction, elastic pieces 1-8 are arranged at the opening positions of the grooves, and when the elastic pieces are pressed, the elastic pieces deform inwards, so that the installation of the potential gear is realized, and the potential gear is prevented from falling off in the assembling process.
Preferably, the end part of the elastic sheet is provided with an inclined guide surface, so that the installation efficiency is improved when the assembled type guide angle sensor driving shaft is installed.
The outer circumference of the power output shaft mounting hole of the flange box cover is at least provided with one elastic claw 1-101, and the power output shaft is provided with a limiting clamping groove.
Preferably, the outer circumference of the power output shaft mounting hole of the flange box cover is at least provided with one elastic clamping jaw 1-10, the power output shaft is provided with a limiting clamping groove 3-1, the clamping jaw clamps the limiting clamping groove after assembly, the mounting position of the power output shaft is ensured to be relatively fixed, and then the engagement of the angle detection fluted disc 2 and the potentiometer gear is ensured. The number of the elastic clamping jaws is 2-6, and the elastic clamping jaws are uniformly distributed on the circumference. When the traditional power output shaft is installed, the clamp spring is used for limiting and restricting, the technical scheme is used for replacing the existing clamp spring, a clamp spring assembling link is omitted, and the production efficiency and the product stability are improved.
Preferably, an annular sealing groove is formed in the power output shaft and sleeved with a sealing ring, and sealing between the power output shaft and the flange box cover in the rotating process is guaranteed.
Adopt above-mentioned technical scheme, after the shell fragment pressurized, the shell fragment will inwards take place to warp, and then realize the quick installation of current potential gear, and the installation is accomplished and is guaranteed that the current potential gear does not take place to drop under the effect of the elastic potential energy of shell fragment, moreover in whole operation process because the effort of shell fragment, the angle sensor drive shaft keeps the tight fit with angle sensing all the time, guarantees the accuracy of signal feedback.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. An angle detection device of an electrically-driven three-stage planetary reduction driver comprises an angle detection fluted disc connected with a power output shaft, wherein an angle detection box is arranged on a gear ring shell close to the end of the power output shaft, a flange box cover is mounted on the angle detection box, the power output shaft extends out of the flange box cover, and an angle detection element for detecting the rotation angle of the power output shaft is mounted in the angle detection box; the angle detection element adopts a gear potentiometer, the gear potentiometer is arranged on a potentiometer mounting shaft in the angle detection box, and a potentiometer gear of the gear potentiometer is meshed with an angle detection fluted disc; an angle sensor driving shaft is coaxially arranged on the potential gear and connected with an angle sensor; the method is characterized in that: the cross section of the angle sensor driving shaft is of a D-shaped structure, a groove which is open to the plane side of the D-shaped structure is formed in the angle sensor driving shaft along the axial direction, and an elastic sheet is arranged at the opening position of the groove.
2. The electrically driven three-stage planetary reduction drive angle detection device according to claim 1, characterized in that: the end of the elastic sheet is provided with an inclined guide surface.
3. The electrically driven three-stage planetary reduction drive angle detection device according to claim 1, characterized in that: the flange box cover is characterized in that at least one elastic clamping jaw is arranged on the outer circumference of the power output shaft mounting hole of the flange box cover, and a limiting clamping groove is formed in the power output shaft.
4. The electrically driven three-stage planetary reduction drive angle detection device according to claim 1, characterized in that: the number of the elastic clamping jaws is 2-6, and the elastic clamping jaws are uniformly distributed on the circumference.
5. The electrically driven three-stage planetary reduction drive angle detection device according to claim 1, characterized in that: and an annular sealing groove is arranged on the power output shaft at the inner side of the limiting clamping groove, and a sealing ring is sleeved in the annular sealing groove.
CN202210305281.6A 2022-03-25 2022-03-25 Electrically-driven three-stage planetary reduction driver angle detection device Pending CN114459339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210305281.6A CN114459339A (en) 2022-03-25 2022-03-25 Electrically-driven three-stage planetary reduction driver angle detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210305281.6A CN114459339A (en) 2022-03-25 2022-03-25 Electrically-driven three-stage planetary reduction driver angle detection device

Publications (1)

Publication Number Publication Date
CN114459339A true CN114459339A (en) 2022-05-10

Family

ID=81417508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210305281.6A Pending CN114459339A (en) 2022-03-25 2022-03-25 Electrically-driven three-stage planetary reduction driver angle detection device

Country Status (1)

Country Link
CN (1) CN114459339A (en)

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