CN219284313U - Encoder device - Google Patents

Abstract

The utility model discloses an encoder device, which comprises an encoder bracket, a bearing, a rotating part, a code wheel reading head plate and a connecting part, wherein the encoder bracket comprises a first end and a second end opposite to the first end; the rotating part comprises a first rotating part and a second rotating part connected with the first rotating part, the first rotating part is nested in the bearing, the second rotating part is connected with the code disc, the connecting part is arranged between the code disc and the code disc reading head plate, the code disc can be prevented from being scratched in the installation process, and the code disc can be reduced or even prevented from being polluted.

Description

Encoder device

Technical Field

The utility model relates to the technical field of encoders, in particular to an encoder device.

Background

Among the prior art, encoder in the robot joint generally comprises encoder support, the bearing, rotating part, code wheel and code wheel read head board, the code wheel read head board is used for reading the data of code wheel, the embedded bearing that is equipped with of encoder support, rotating part inlays and establishes in the bearing, the code wheel nestification is on rotating part, rotating part can drive the code wheel and rotate, code wheel read head board links to each other and keeps static with the encoder support, can set up the space between code wheel and the code wheel read head board, but the greasy dirt of bearing and the atomizing granule that drive robot joint's drive plate produced can pass the space and pollute the code wheel under the high temperature state, and at the in-process of installation code wheel, can fish tail the code wheel easily and cause the reading of the data of installation uneven thereby influence to the code wheel.

Accordingly, there is a need to provide an encoder apparatus to solve the above-mentioned problems.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is to provide an encoder device which can prevent the code disc from being scratched in the installation process and can also reduce or even prevent the code disc from being polluted.

In order to solve the technical problems, the utility model provides an encoder device, which comprises an encoder bracket, a bearing, a rotating part, a code wheel reading head plate and a connecting part, wherein the encoder bracket comprises a first end and a second end opposite to the first end, the bearing is nested in the encoder bracket and is close to the first end, and the code wheel reading head plate is connected with the second end; the rotating piece comprises a first rotating part and a second rotating part connected with the first rotating part, the first rotating part is nested in the bearing, the second rotating part is connected with the code disc, and the connecting piece is arranged between the code disc and the code disc reading head plate.

In one possible implementation, the connector includes a first stop collar plate and a first stop side plate, the first stop side plate extends from a side edge of the first stop collar plate toward the code wheel reading head plate, and a certain distance is provided between an end of the first stop side plate, which is close to the code wheel reading head plate, and the code wheel reading head plate.

In one possible implementation, the distance is 0.5mm.

In one possible implementation, the code wheel readhead plate includes a circuit board portion and a non-circuit board portion, the circuit board portion being in signal connection with the code wheel, the circuit board portion and the non-circuit board portion being integrally formed.

In one possible implementation manner, the second rotating portion includes a first ring plate, a first side plate and a second side plate, the first side plate is connected with an inner side wall of the first ring plate, and the second side plate is connected with an outer side wall of the first ring plate;

the second side plate extends from the outer side wall of the first annular plate in a direction away from the bearing.

In one possible implementation manner, the code disc is sleeved on the first side plate and is connected with the first annular plate; the distance between the first side plate and the second side plate is greater than or equal to the distance between the outer edge of the code wheel and the first side plate.

In one possible implementation, the bearing includes an inner ring, an outer ring, and balls between the inner ring and the outer ring, the inner ring being connected to the first ring plate, the outer ring having a gap therebetween.

In one possible implementation, the first rotating portion includes a third side plate nested within the inner ring and connected to the first ring plate.

In one possible implementation, the first rotating portion and the second rotating portion are integrally formed.

In one possible implementation, the rotary member, the code wheel and the connecting member are connected by screws.

The implementation of the utility model has the following beneficial effects:

according to the encoder device, the connecting piece is arranged in the gap between the code disc and the code disc reading head plate, when the code disc is installed, the connecting piece can protect the code disc, scratches on the code disc caused by improper operation are reduced, the code disc can be tightly connected with the rotating piece through the arrangement of the connecting piece, and the condition that the code disc is unevenly installed is avoided; meanwhile, the connecting piece is arranged, so that gaps between the code disc and the code disc reading head plate can be reduced, and the probability that atomized particles generated by the oil stain of the bearing and the driving plate for driving the robot joint pollute the code disc in a high-temperature state is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application and do not constitute an undue limitation on the application.

FIG. 1 is a schematic diagram of an encoder apparatus according to the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of an encoder apparatus according to the present utility model;

FIG. 3 is an exploded schematic view of an encoder apparatus according to the present utility model;

FIG. 4 is a cross-sectional view of an encoder apparatus according to the present utility model;

FIG. 5 is a schematic view of the structure of the connector according to the present utility model;

fig. 6 is a schematic structural view of a rotating member according to the present utility model.

Reference numerals in the drawings: 100-encoder support, 101-first end, 102-second end;

200-bearing, 201-inner ring, 202-outer ring, 203-ball;

300-rotating piece, 301-first rotating part, 302-second rotating part, 303-first annular plate, 304-first side plate, 305-second side plate, 306-third side plate;

400-code disc;

500-code wheel read head plate, 501-circuit board part, 502-non-circuit board part;

600-connecting pieces, 601-first limiting ring plates and 602-first limiting side plates;

700-screw.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The present embodiment provides an encoder apparatus, as shown in fig. 1-3, comprising an encoder support 100, a bearing 200, a rotating member 300, a code wheel 400, a code wheel readhead plate 500, and a connecting member 600, wherein the encoder support 100 comprises a first end 101 and a second end 102 opposite to the first end 101, the bearing 200 is nested in the encoder support 100 and is close to the first end 101, and the code wheel readhead plate 500 is connected with the second end 102; the rotating member 300 includes a first rotating portion 301 and a second rotating portion 302 connected to the first rotating portion 301, the first rotating portion 301 is nested in the bearing 200, the second rotating portion 302 is connected to the code disc 400, when the encoder apparatus works, the code disc 400 and the rotating member 300 rotate together, and the code disc reading head plate 500 and the encoder support 100 keep a static state, so that a gap needs to be set between the code disc 400 and the code disc reading head plate 500, in the prior art, the gap between the code disc 400 and the code disc reading head plate 500 is large, oil stains of the bearing 200 and atomized particles generated by a driving plate driving a robot joint in a high temperature state may pass through the gap to pollute the code disc 400, and when the code disc 400 is installed, the code disc 400 may be scratched due to errors of manual operations, thereby affecting reading of data of the code disc 400. In this application, the connecting piece 600 is disposed between the code wheel 400 and the code wheel reading head plate 500, and the setting of the connecting piece 600 can reduce the gap between the code wheel 400 and the code wheel reading head plate 500, reduce the oil contamination of the bearing 200 and the probability of the atomized particles generated by the driving plate driving the robot joint in a high temperature state entering the gap, thereby reducing the probability of polluting the code wheel 400. Meanwhile, the arrangement of the connecting piece 600 can also tightly attach the code disc 400 to the rotating piece 300, so that uneven installation of the code disc 400 can not be caused to influence data reading. In one possible implementation, the connecting piece 600 is sleeved on the second rotating portion 302 and abuts against the code wheel 400.

In one possible implementation, as shown in fig. 5, the connector 600 includes a first stop collar plate 601 and a first stop side plate 602, where the first stop side plate 602 extends from a side edge of the first stop collar plate 601 toward the code wheel reading head plate 500, and a certain distance is provided between an end of the first stop side plate 602 near the code wheel reading head plate 500 and the code wheel reading head plate 500. In one possible implementation, the first limiting side plate 602 is one piece and is disposed on the inner side or the outer side of the first limiting ring plate 601, and the first limiting side plate 602 extends from the inner side or the outer side of the first limiting ring plate 601 to the code wheel reading head plate 500, that is, away from the code wheel 400, so that the first limiting side plate 602 can be prevented from scratching the code wheel 400. In one possible implementation manner, the two second limiting side plates are disposed on the inner side and the outer side of the first limiting ring plate 601, and the lengths of the two first limiting side plates 602 along the axial direction may be the same or different, so long as the distance between the first limiting side plate 602 with a longer length along the axial direction and the code wheel reading head plate 500 meets a certain requirement. In one possible implementation, the distance is 0.5mm. Because the space between the first limit side plate 602 and the code wheel readhead plate 500 is small, atomized particles and other dust generated by the driving plate driving the robot joint in a high temperature state can be almost blocked outside the code wheel readhead plate 500 and the connector 600 without entering and adhering to the code wheel 400. In one possible implementation, the first stop side plate 602 is a continuous plate that is uniformly disposed along the circumference of the first stop collar plate 601.

In one possible implementation, as shown in fig. 2 and 3, the code wheel reading head board 500 includes a circuit board portion 501 and a non-circuit board portion 502, where the circuit board portion 501 is in signal connection with the code wheel 400, and the circuit board portion 501 and the non-circuit board portion 502 are integrally formed. The circuit board portion 501 of the code disc reading head board 500 is capable of reading data of the code disc 400, in the prior art, the size of the code disc reading head board 500 is often small, only the circuit board portion 501 for reading data of the code disc 400 is included, in order to reduce dust and the like to pollute the code disc 400 through a gap between the code disc reading head board 500 and the code disc 400, a dust cover is also required to be separately arranged to block the dust, and this can cause an increase in material cost, the code disc reading head board 500 in the embodiment has both the effect of reading data of the code disc 400 and the effect of dust prevention, the data of the code disc 400 is read through the circuit board portion 501, the dust is blocked jointly through the non-circuit board portion 502 and the circuit board portion 501, and materials can be saved, and the cost is reduced.

In one possible implementation, as shown in fig. 6, the second rotating portion 302 includes a first ring plate 303, a first side plate 304, and a second side plate 305, where the first side plate 304 is connected to an inner side wall of the first ring plate 303, and the second side plate 305 is connected to an outer side wall of the first ring plate 303; the second side plate 305 extends from the outer side wall of the first annular plate 303 in a direction away from the bearing 200. In one possible implementation, the first side plate 304 and the second side plate 305 are each continuous plates that are uniformly disposed along the circumferential direction of the first annular plate 303. Compared with the prior art, the second side plate 305 is added, and the second side plate 305 extends from the outer side wall of the first annular plate 303 in a direction away from the bearing 200, so that the oil contamination of the bearing 200 can be effectively prevented from being exposed to the first annular plate 303, and the code wheel 400 is polluted. Because the second side plate 305 rotates during operation, and the encoder bracket 100 is still, a gap needs to be provided between the second side plate 305 and the encoder bracket 100, and when the gap between the second side plate 305 and the encoder bracket 100 is smaller, that is, the outer diameter of the first ring plate 303 is larger, the probability of oil contamination of the code wheel 400 by the bearing 200 is smaller.

In a possible implementation, as shown in fig. 3 and fig. 4, the code wheel 400 is sleeved on the first side plate 304 and connected to the first ring plate 303; the distance between the first side plate 304 and the second side plate 305 is equal to or greater than the distance between the outer edge of the code wheel 400 and the first side plate 304. The code wheel 400 is sleeved on the first side plate 304, the inner side wall of the code wheel 400 contacts with the inner side wall of the first side plate 304, the surface of the code wheel 400 contacts with the surface of the first ring plate 303, and in order to enable the code wheel 400 to be in flat contact with the first ring plate 303, the distance between the first side plate 304 and the second side plate 305 is required to be greater than or equal to the distance between the outer edge of the code wheel 400 and the first side plate 304. In one possible implementation, the first side plate 304 and the second side plate 305 are perpendicular to the first ring plate 303, and the distance between the first side plate 304 and the second side plate 305 is the radius of the first ring plate 303, that is, the radius of the code wheel 400 should be less than or equal to the radius of the first ring plate 303, so that the code wheel 400 and the first ring plate 303 can be in flat contact.

In one possible implementation, as shown in fig. 3 and 4, the bearing 200 includes an inner ring 201, an outer ring 202, and balls 203 located between the inner ring 201 and the outer ring 202, the inner ring 201 being connected to the first ring plate 303, and the outer ring 202 and the first ring plate 303 having a gap therebetween. The outer ring 202 and the encoder support 100 remain stationary and the inner ring 201 and the first ring plate 303 are rotatably connected, so that a gap is required between the outer ring 202 and the first ring plate 303 in order for the outer ring 202 not to interfere with the rotation of the first ring plate 303.

In one possible implementation, as shown in fig. 3 and 6, the first rotating portion 301 includes a third side plate 306, and the third side plate 306 is nested within the inner ring 201 and connected to the first ring plate 303. When the rotator 300 rotates, the third side plate 306 and the first ring plate 303 rotate in synchronization with the inner ring 201 of the bearing 200, and nesting the third side plate 306 in the inner ring 201 can increase the connection strength between the rotator 300 and the inner ring 201 of the bearing 200.

In one possible implementation, as shown in fig. 6, the first rotating portion 301 and the second rotating portion 302 are integrally formed, so that the connection strength between the first rotating portion 301 and the second rotating portion 302 can be increased, and the integrity of the rotating member 300 can be increased.

In one possible implementation, the rotary member 300, the code wheel 400, and the connection member 600 are connected by a screw 700. As shown in fig. 3, the first ring plate 303 of the rotating member 300 is provided with a first opening, the code wheel 400 is provided with a second opening, and the connecting member 600 is provided with a third opening, when the device is installed, the code wheel 400 is nested on the first side plate 304 of the rotating member 300, the second opening and the first opening are aligned one by one, the connecting member 600 is nested on the first side plate 304 of the rotating member 300 to be abutted against the code wheel 400, the third opening and the second opening are aligned one by one, at the moment, the connecting member 600 and the code wheel 400 are locked to the rotating member 300 through the screw 700, the connecting strength among the rotating member 300, the code wheel 400 and the connecting member 600 can be increased by adopting the screw 700 for connection, and the existence of the connecting member 600 can avoid the screw 700 from scratching the code wheel 400.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An encoder device comprising an encoder support (100), a bearing (200), a rotating member (300), a code wheel (400), a code wheel readhead plate (500) and a connecting member (600), said encoder support (100) comprising a first end (101) and a second end (102) opposite said first end (101), said bearing (200) being nested within said encoder support (100) and adjacent to said first end (101), said code wheel readhead plate (500) being connected to said second end (102); the rotating part (300) comprises a first rotating part (301) and a second rotating part (302) connected with the first rotating part (301), the first rotating part (301) is nested in the bearing (200), the second rotating part (302) is connected with the code disc (400), and the connecting part (600) is arranged between the code disc (400) and the code disc reading head plate (500).

2. The encoder device of claim 1, wherein the connector (600) comprises a first stop collar plate (601) and a first stop side plate (602), the first stop side plate (602) extending from a side edge of the first stop collar plate (601) towards the code wheel readhead plate (500), an end of the first stop side plate (602) adjacent to the code wheel readhead plate (500) having a distance from the code wheel readhead plate (500).

3. Encoder apparatus according to claim 2, wherein the distance is 0.5mm.

4. The encoder device of claim 1, wherein the code wheel readhead plate (500) comprises a circuit board portion (501) and a non-circuit board portion (502), the circuit board portion (501) being in signal connection with the code wheel (400), the circuit board portion (501) and the non-circuit board portion (502) being integrally formed.

5. The encoder device according to claim 1, wherein the second rotating part (302) comprises a first ring plate (303), a first side plate (304) and a second side plate (305), the first side plate (304) being connected to an inner side wall of the first ring plate (303), the second side plate (305) being connected to an outer side wall of the first ring plate (303);

the second side plate (305) extends from the outer side wall of the first annular plate (303) in a direction away from the bearing (200).

6. The encoder device according to claim 5, characterized in that the code wheel (400) is sleeved on the first side plate (304) and is connected with the first ring plate (303); a distance between the first side plate (304) and the second side plate (305) is equal to or greater than a distance between an outer edge of the code wheel (400) and the first side plate (304).

7. The encoder device of claim 6, wherein the bearing (200) comprises an inner ring (201), an outer ring (202) and balls (203) between the inner ring (201) and the outer ring (202), the inner ring (201) being connected to the first ring plate (303), the outer ring (202) having a gap between the first ring plate (303).

8. The encoder device of claim 7, wherein the first rotation part (301) comprises a third side plate (306), the third side plate (306) being nested within the inner ring (201) and connected to the first ring plate (303).

9. The encoder device of claim 8, wherein the first rotation part (301) is integrally formed with the second rotation part (302).

10. The encoder device of claim 1, wherein the rotary member (300), the code wheel (400) and the connection member (600) are connected by a screw (700).

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