CN218628371U

CN218628371U - Large-aperture high-precision thin-wall hollow split type encoder

Info

Publication number: CN218628371U
Application number: CN202223322674.2U
Authority: CN
Inventors: 何金其; 盛立秋; 陈海伦; 常艳东; 王金石; 王帅
Original assignee: Changchun Hengli Photoelectric Technology Co ltd
Current assignee: Changchun Hengli Photoelectric Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-14
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a hollow split type encoder of large aperture high accuracy thin wall includes: a stator portion, a rotor portion; the stator part comprises an encoder stator and a pcb; the rotor part comprises an encoder rotor, a code disc compression ring and a code disc; the inner wall of the encoder rotor is in contact with the external rotating shaft and is fixed on the external rotating shaft; the coded disc compression ring sleeves the coded disc on the outer wall of the encoder rotor and is fixed on the encoder rotor; the encoder stator is provided with an annular step-shaped limiting clamping groove, and the relative position of the encoder stator and an external fixing device can be fixed through the clamping groove; the pcb is detachably connected with the encoder stator through a thread structure. The utility model discloses a hollow split type encoder frame of large aperture high accuracy thin wall simple structure is reliable, and space utilization is high, and thin wall and thickness are little, only need two fixed parts, and the encoder stator can use with the encoder rotor. Coaxial accurate, the requirement to the assembly environment is not high.

Description

Large-aperture high-precision thin-wall hollow split type encoder

Technical Field

The utility model relates to a measuring instrument technical field especially relates to a hollow split type encoder of large aperture high accuracy thin wall.

Background

The encoder is a speed and displacement sensor and is an important component of transmission control. An encoder is a device that compiles signals or data into a form of signals that can be stored for communication transmission. The encoder is characterized by small volume, light weight, compact mechanism, convenient installation, simple maintenance, small driving moment, high precision, wide measurement range, fast reaction, digital output and the like.

At present, the conventional split encoder structure mainly comprises a main body, a pcb, a light source, a rotating shaft and a code wheel, and all parts are required to be installed one by one during assembly. Most hollow split type encoders internal diameter is less, and the wall thickness is great, and the used space of code wheel, pcb board, light source is great, and will be bigger if the big required space of installation axle, and generally can install the most terminal at the axle. The split type encoder has high coaxiality requirement and is difficult to position. The requirements on the assembly environment are strict, and due to the difference of conditions such as the assembly environment and the like, the problems of coded disc pollution, coded disc scratch and the like are easily caused in the assembly process.

SUMMERY OF THE UTILITY MODEL

Shortcoming or not enough to above-mentioned prior art, the utility model discloses research a hollow split type encoder of large aperture high accuracy thin wall can solve above-mentioned problem, the utility model discloses the installation is simple swift, and space utilization is high, the mounted position of guaranteed axiality.

The utility model provides a hollow split type encoder of large aperture high accuracy thin wall which characterized in that contains: stator portion 100, rotor portion 200;

the stator part 100 includes an encoder stator 110, a pcb board 120;

the rotor part 200 comprises an encoder rotor 210, a code wheel compression ring 220 and a code wheel 230;

the encoder rotor 210 is a plurality of stepped ring structures, which include a first rotor section 211, a second rotor section 212, and a third rotor section 213;

the outer wall of the first section 211 of the rotor is detachably matched and connected with the stator 110 of the encoder;

the coded disc 230 is sleeved on the outer wall of the second section 212 of the rotor by the coded disc pressing ring 220 and is fixed on the third section 213 of the rotor;

the inner wall of the encoder rotor 210 is in contact with the external rotating shaft and is fixed on the external rotating shaft;

the encoder stator 110 is a plurality of stepped circular ring structures, and comprises a stator first section 111, a stator second section 112 and a stator third section 113;

the inner wall of the first stator section 111 is provided with a plurality of threaded holes, and the pcb 120 is detachably connected with the first stator section 111 through a threaded structure;

the outer wall of the second section 112 of the stator is provided with a plurality of screw counter bores protruding out of the body, and the screw counter bores are detachably arranged on an external fixing device;

the third section 113 of the stator is provided with an annular step-shaped limiting clamping groove, and the relative position of the third section of the stator and an external fixing device can be fixed through the clamping groove.

The beneficial effects of the utility model are that:

1. the utility model discloses a prior art has cancelled some electronic components such as light source, has reduced pcb board, code wheel, makes the whole attenuation of encoder, saves space.

2. The utility model discloses optimize encoder stator structure, stayed a draw-in groove at the mounted position, only need with its card the position that the customer end was reserved can, assurance encoder axiality that can be better.

3. The utility model discloses an encoder has reduced the installation component, and the installation is simple swift.

Drawings

FIG. 1 is a schematic view of the large-aperture high-precision thin-wall hollow split encoder of the present invention;

fig. 2 is a schematic cross-sectional view of the encoder stator 110 of the present invention;

fig. 3 is a schematic cross-sectional view of the encoder rotor 210 of the present invention.

In the figure: 100-stator part, 110-encoder stator, 111-stator first section, 112-stator second section, 113-stator third section, 120-pcb board, 200-rotor part, 210-encoder rotor, 211-rotor first section, 212-rotor second section, 213-rotor third section, 220-code wheel compression ring, 230-code wheel.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

the stator portion 100 includes an encoder stator 110, a pcb board 120;

rotor portion 200 includes encoder rotor 210, code wheel pressing ring 220, code wheel 230;

the encoder stator 110 is a plurality of stepped annular structures, and comprises a stator first section 111, a stator second section 112 and a stator third section 113;

the third section 113 of the stator is provided with an annular step-shaped limiting clamping groove, and the relative position of the stator and an external fixing device can be fixed through the clamping groove.

To sum up, the utility model discloses a hollow split type encoder frame of large aperture high accuracy thin wall has reduced pcb board, code wheel through having cancelled some electronic components such as light source on prior art's basis, makes the encoder just whole attenuation, has saved installation space. And the utility model discloses reduce the installation component, it is simple swift. The pcb 120 and the code wheel 230 are only required to be fixed to the encoder stator 110 and the encoder rotor 210, respectively. The encoder stator 110 is fixed at a predetermined mounting position of an external device, and the encoder rotor 210 is fixed at a predetermined mounting position of an external rotation shaft. The utility model discloses a better assurance encoder axiality has optimized encoder stator 110 structure, has stayed a boss at the mounted position, only need with its card the position that the customer end reserved can.

The above are only examples of the present invention, and the general knowledge of the known specific structures and characteristics of the embodiments is not described herein, and it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the present invention, a plurality of modifications and improvements can be made, which should be regarded as the protection scope of the present invention, and these will not affect the utility model and the utility of the patent.

Claims

1. The utility model provides a hollow split type encoder of large aperture high accuracy thin wall which characterized in that contains: a stator unit (100), a rotor unit (200);

the stator part (100) comprises an encoder stator (110), a pcb board (120);

the rotor part (200) comprises an encoder rotor (210), a coded disc pressing ring (220) and a coded disc (230);

the encoder rotor (210) is of a plurality of step-shaped circular ring structures and comprises a first rotor section (211), a second rotor section (212) and a third rotor section (213);

the outer wall of the first section (211) of the rotor is detachably matched and connected with the stator (110) of the encoder;

the coded disc pressing ring (220) sleeves the coded disc (230) on the outer wall of the second section (212) of the rotor and is fixed on the third section (213) of the rotor;

the inner wall of the encoder rotor (210) is in contact with the external rotating shaft and is fixed on the external rotating shaft;

the encoder stator (110) is of a plurality of step-shaped circular ring structures and comprises a first stator section (111), a second stator section (112) and a third stator section (113);

the inner wall of the first stator section (111) is provided with a plurality of threaded holes, and the pcb (120) is detachably connected with the first stator section (111) through a threaded structure;

the outer wall of the second section (112) of the stator is provided with a plurality of screw counter bores protruding out of the body, and the screw counter bores are detachably arranged on an external fixing device;

the third section (113) of the stator is provided with an annular step-shaped limiting clamping groove, and the relative position of the stator and an external fixing device can be fixed through the clamping groove.