CN211291503U

CN211291503U - Novel high-resolution single-ring solid shaft absolute encoder

Info

Publication number: CN211291503U
Application number: CN201822151423.XU
Authority: CN
Inventors: 倪国东
Original assignee: Tianjin Guangzhi Technology Co ltd
Current assignee: Tianjin Guangzhi Technology Co ltd
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2020-08-18
Anticipated expiration: 2028-12-21

Abstract

The utility model discloses a novel absolute formula encoder of single circle solid axle of high resolution, which comprises an outer shell, the inboard rotation that runs through the second positioning disk of the inboard of first bearing is connected with the pivot, one side fixedly connected with code wheel that the outside of pivot is close to the second positioning disk, the one end fixedly connected with photosensitive element of second positioning disk, one side fixedly connected with power supply module that the one end of first positioning disk is close to the code wheel. The utility model discloses a horn pipe is fixed LED lamp pearl and lens respectively, and rethread external thread groove makes power supply module and first positioning disk fixed together to make LED lamp pearl and lens keep relative stability, when the high-speed rotation of pivot, not influenced, and then improved the resolution ratio of encoder, run through the screw post on apron, first positioning disk and the second positioning disk in proper order through the screw, make apron, first positioning disk, second positioning disk and shell fixed together, make things convenient for the maintenance personal to overhaul.

Description

Novel high-resolution single-ring solid shaft absolute encoder

Technical Field

The utility model relates to an encoder technical field specifically is a novel absolute formula encoder of single circle solid shaft of high resolution.

Background

The encoder can convert mechanical quantities such as angular displacement, angular speed and the like of an output shaft into corresponding electric pulses through photoelectric conversion and output the electric pulses as digital quantities, is used for measuring rotating speed and can realize quick speed regulation by matching with a PWM (pulse width modulation) technology, is motor positioning equipment commonly used in the industry, can accurately test the angular displacement and the rotating position of a motor, and can be divided into an incremental type, an absolute type and a mixed type according to a scale method and a signal output form, wherein the solid shaft absolute type encoder is connected with a motor shaft by a solid shaft through an elastic coupling and an external flange.

Chinese patent discloses an absolute formula encoder (No. CN207036126U), and this patent technology is inside to adopt the gear engagement form, through gear rotation angle and the number of turns, makes little magnet obtain the response, and rethread circuit board output signal, gear engagement belongs to mechanical structure purely, durable, but its pivot is when high-speed rotation, and the stability of light source and lens is not high, and then leads to the resolution ratio of encoder not high. Accordingly, those skilled in the art have provided a novel high resolution single-turn solid shaft absolute encoder to solve the problems set forth in the background above.

Disclosure of Invention

An object of the utility model is to provide a novel absolute formula encoder of single circle solid core shaft of high resolution to the pivot of the encoder that proposes in solving above-mentioned background art is when high-speed rotatory, and the stability of light source and lens is not high, and then leads to the not high problem of resolution ratio of encoder.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel high-resolution single-ring solid shaft absolute encoder comprises a shell, wherein a cover plate is arranged at one end of the shell, a first bearing is fixedly arranged at one end, far away from the cover plate, of the inner side of the shell, a second positioning disc is fixedly arranged at one end, close to the first bearing, of the inner side of the shell, a rotating shaft is rotatably connected to the inner side, penetrating through the second positioning disc, of the inner side of the first bearing, a coded disc is fixedly connected to one side, close to the second positioning disc, of the outer side of the rotating shaft, a first positioning disc is fixedly connected to one side, close to the coded disc, of the inner side of the shell, a second bearing is rotatably connected to one end, close to the first positioning disc, of the outer side of the rotating shaft, a photosensitive element is fixedly connected to one end of the second positioning disc, a plane light slit is fixedly connected to, one end of the cover plate is annularly embedded with four screws.

As a further aspect of the present invention: the second bearing is fixedly arranged on the inner side of the cover plate, and one end of the rotating shaft penetrates through the inner side of the cover plate to be connected with an external motor.

As a further aspect of the present invention: the screw penetrates through the cover plate, the first positioning plate and the second positioning plate in sequence, and the cover plate, the first positioning plate, the second positioning plate and the shell are fixedly connected through the screw.

As a further aspect of the present invention: the first positioning disc comprises a disc body, one end of the disc body is annularly provided with a threaded column in a penetrating mode, and one end of the disc body, close to the threaded column, is provided with an inner threaded groove.

As a further aspect of the present invention: the power supply module comprises a horn tube, a lens is arranged at one end of the horn tube in an embedded mode, an LED lamp bead is arranged at the other end of the horn tube in an embedded mode, and an external thread groove is formed in one end, close to the LED lamp bead, of the outer side of the horn tube.

As a further aspect of the present invention: one end of the horn tube is fixedly connected with the disc body, and the external thread groove is meshed with the internal thread groove.

Compared with the prior art, the beneficial effects of the utility model are that:

fix LED lamp pearl and lens respectively through the horn tube, rethread external thread groove makes power supply module and first positioning disk fixed together, thereby make LED lamp pearl and lens keep relative stability, when the high-speed rotation of pivot, not influenced, and then improved the resolution ratio of encoder, run through the apron in proper order through the screw, the screw post on first positioning disk and the second positioning disk, make the apron, first positioning disk, second positioning disk and shell are fixed together, when the encoder breaks down, make things convenient for maintenance personal to overhaul.

Drawings

FIG. 1 is a schematic structural diagram of a novel high-resolution single-ring solid shaft absolute encoder;

FIG. 2 is an assembly view of a novel high resolution single-turn solid shaft absolute encoder;

FIG. 3 is a schematic structural diagram of a first positioning disk in a novel high-resolution single-ring solid shaft absolute encoder;

fig. 4 is a schematic diagram of the structure of a power supply module in a novel high-resolution single-turn solid shaft absolute encoder.

In the figure: 1. a housing; 2. a first bearing; 3. a photosensitive element; 4. a planar light slit; 5. a power supply component; 51. a flare tube; 52. an outer thread groove; 53. LED lamp beads; 54. a lens; 6. a first positioning plate; 61. a tray body; 62. a threaded post; 63. an internal thread groove; 7. a cover plate; 8. a screw; 9. a second bearing; 10. a rotating shaft; 11. code disc; 12. and a second positioning plate.

Detailed Description

Referring to fig. 1-4, in the embodiment of the present invention, a novel high-resolution single-ring solid shaft absolute encoder comprises a housing 1, a cover plate 7 is disposed at one end of the housing 1, a first bearing 2 is fixedly mounted at an end of the inner side of the housing 1 far from the cover plate 7, a second positioning plate 12 is fixedly disposed at an end of the inner side of the housing 1 near the first bearing 2, a rotating shaft 10 is rotatably connected to the inner side of the first bearing 2 through the inner side of the second positioning plate 12, a code plate 11 is fixedly connected to an outer side of the rotating shaft 10 near the second positioning plate 12, a first positioning plate 6 is fixedly connected to an inner side of the housing 1 near the code plate 11, a second bearing 9 is rotatably connected to an end of the rotating shaft 10 near the first positioning plate 6, a photosensitive element 3 is fixedly connected to an end of the second positioning plate 12, and a plane light slit 4 is fixedly connected to, one end of the first positioning disk 6 close to one side of the code disk 11 is fixedly connected with a power supply assembly 5, and one end of the cover plate 7 is annularly embedded with four screws 8.

In order to improve the stability of the rotation of the rotating shaft 10, the second bearing 9 is fixedly installed inside the cover plate 7, and one end of the rotating shaft 10 penetrates through the inside of the cover plate 7 to be connected with an external motor.

In order to fix the cover plate 7, the first positioning plate 6 and the second positioning plate 12, the screw 8 sequentially penetrates through the cover plate 7, the first positioning plate 6 and the second positioning plate 12, and the cover plate 7, the first positioning plate 6, the second positioning plate 12 and the shell 1 are fixedly connected together through the screw 8.

In order to fix the power supply module 5, the first positioning plate 6 includes a plate body 61, a threaded column 62 is annularly arranged at one end of the plate body 61 in a penetrating manner, and an inner threaded groove 63 is formed at one end of the plate body 61 close to the threaded column 62.

In order to improve the relative stability of lens 54 and LED lamp pearl 53, power supply module 5 includes horn tube 51, and the one end embedding of horn tube 51 is provided with lens 54, and the other end embedding of horn tube 51 is provided with LED lamp pearl 53, and the one end that the outside of horn tube 51 is close to LED lamp pearl 53 has seted up outer thread groove 52.

In order to facilitate the installation of the bell pipe 51, one end of the bell pipe 51 is fixedly connected to the disc body 61, and the male screw groove 52 is engaged with the female screw groove 63.

The utility model discloses a theory of operation: the rotating shaft 10 is driven by an external motor to rotate, the coded disc 11 is driven by the rotating shaft 10 to rotate together with the planar light slit 4, the LED lamp bead 53 close to one side of the coded disc 11 emits light, the light passes through the lens 54 and is converted into light parallel to the light main shaft, on the other side of the code wheel 11, corresponding to each code track, there is a light-sensitive element 3 which, when the code wheel 11 is in different positions, each photosensitive element 3 converts a corresponding level signal according to whether the light is irradiated or not to form a binary number, further converting the mechanical quantity of angular displacement and angular speed of output shaft into correspondent electric pulse and outputting it as digital quantity, the LED lamp bead 53 and the lens 54 are respectively fixed through the horn tube 51, the power supply component 5 is fixed with the first positioning disk 6 through the external thread groove 52, therefore, the LED lamp beads 53 and the lens 54 are kept relatively stable, and are not affected when the rotating shaft 10 rotates at a high speed, and the resolution of the encoder is further improved.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel high-resolution single-ring solid shaft absolute encoder comprises a shell (1) and is characterized in that a cover plate (7) is arranged at one end of the shell (1), a first bearing (2) is fixedly arranged at one end, far away from the cover plate (7), of the inner side of the shell (1), a second positioning disc (12) is fixedly arranged at one end, close to the first bearing (2), of the inner side of the shell (1), a rotating shaft (10) is rotatably connected to the inner side, penetrating through the second positioning disc (12), of the inner side of the first bearing (2), a code disc (11) is fixedly connected to one side, close to the second positioning disc (12), of the outer side of the rotating shaft (10), a first positioning disc (6) is fixedly connected to one side, close to the code disc (11), of the inner side of the shell (1), and a second bearing (9) is rotatably connected to one end, close to the first positioning disc (6), of, one end of the second positioning disc (12) is fixedly connected with a photosensitive element (3), one side of the coded disc (11) is fixedly connected with a plane light slit (4), one side of the first positioning disc (6) close to the coded disc (11) is fixedly connected with a power supply assembly (5), and one end of the cover plate (7) is annularly embedded with four screws (8).

2. A new type of high resolution single-turn solid shaft absolute encoder according to claim 1, characterized in that the second bearing (9) is fixedly installed inside the cover plate (7), and one end of the rotating shaft (10) penetrates through the inside of the cover plate (7) and is connected with an external motor.

3. A novel high-resolution single-ring solid shaft absolute encoder according to claim 1, wherein the screws (8) sequentially penetrate through the cover plate (7), the first positioning disk (6) and the second positioning disk (12), and the cover plate (7), the first positioning disk (6), the second positioning disk (12) and the housing (1) are fixedly connected together through the screws (8).

4. The novel high-resolution single-ring solid shaft absolute encoder is characterized in that the first positioning disc (6) comprises a disc body (61), one end of the disc body (61) is annularly provided with a threaded column (62) in a penetrating mode, and one end, close to the threaded column (62), of the disc body (61) is provided with an inner threaded groove (63).

5. The novel high-resolution single-ring solid shaft absolute encoder is characterized in that the power supply assembly (5) comprises a flared tube (51), a lens (54) is embedded in one end of the flared tube (51), an LED lamp bead (53) is embedded in the other end of the flared tube (51), and an external thread groove (52) is formed in one end, close to the LED lamp bead (53), of the outer side of the flared tube (51);

one end of the flared tube (51) is fixedly connected with the disc body (61), and the external thread groove (52) is meshed with the internal thread groove (63).