CN217741471U

CN217741471U - Outgoing line structure of motor encoder

Info

Publication number: CN217741471U
Application number: CN202221209464.XU
Authority: CN
Inventors: 薛晓鹏
Original assignee: Shanghai Dianchuang Automation Technology Co ltd
Current assignee: Shanghai Dianchuang Automation Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-11-04
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a wire outlet structure of a motor encoder, which comprises a rear cover, a tooth cover and a sealing ring, wherein the rear cover is a thin shell structure with an upward opening, the outer wall of the rear cover is integrally provided with a wire harness connecting pipe communicated with the inner cavity of the rear cover, and the wire harness connecting pipe is provided with external threads corresponding to the outer pipe wall of the wire harness connecting pipe; the sealing washer is at least partially embedded in the bunch takeover, be provided with external screw-thread fit's internal thread on the inner wall of tooth lid, tooth lid screw-thread fit is fixed on being taken over in order to fix the encoder signal fastener that stretches out through the sealing washer in the back lid on the bunch. The utility model has the advantages of simple and reasonable structure, the tooth lid in-process of screwing can make sealing washer and encoder signal line closely laminate to the protection grade and the liquid-proof grade of encoder and signal line have been improved greatly.

Description

Outgoing line structure of motor encoder

Technical Field

The utility model relates to the technical field of motors, in particular to motor encoder's outlet structure.

Background

Nowadays, automation becomes a revolutionary direction of Chinese manufacturing, a robot is replaced by a human, so that industrial robots and automation industries are in the golden development period, servo motors are used as core components of the automation industries, the industry competition is intensified, and the performance and the capacity of the motors are one aspect of the competition.

The existing motor connector is divided into a power line connector and an encoder line connector. The outlet structure of the encoder wire consists of a signal wire, a pressing plate and a rear cover, the signal wire is firstly installed in a notch on the rear cover, and then the pressing plate is correspondingly and fixedly installed in a socket of the rear cover through a screw to realize the compression and fixation of the signal wire; the sealing matching effect between the pressing plate, the rear cover and the signal wire is poor, a gap exists, the liquid-proof effect is poor, and an improved space is provided.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome defect among the above-mentioned prior art, provide a motor encoder's outlet structure, its simple structure, reasonable, and the sealed cooperation between the encoder signal line is effectual, has improved the protection level and the liquid-proof level of encoder and signal line greatly.

In order to achieve the purpose, the utility model provides an outlet structure of a motor encoder, which comprises a rear cover, a tooth cover and a sealing ring, wherein the rear cover is a thin shell structure with an upward opening;

the sealing washer is at least partially embedded in the bunch takeover, be provided with external screw-thread fit's internal thread on the inner wall of tooth lid, tooth lid screw-thread fit is fixed on being taken over in order to fix the encoder signal fastener that stretches out through the sealing washer in the back lid on the bunch.

Further setting the following steps: a plurality of stop grooves are formed on the inner hole wall of the bunch connection pipe correspondingly, and a plurality of stop teeth matched with the stop grooves are arranged on the part, correspondingly embedded in the bunch connection pipe, of the sealing ring.

Further setting the following steps: the sealing ring is provided with a plurality of circles of waterproof bulges corresponding to the inner hole.

Further setting the following steps: the outer wall of back lid corresponds and is provided with drawing of patterns breach between its opening and the bunch takeover, the degree of depth of drawing of patterns breach is taken over to the opening by the bunch and is deepened gradually.

Further setting the following steps: the circumferential wall of the rear cover is provided with a plurality of glue reducing cavities at intervals corresponding to the circumference of the rear cover in the thickness direction.

Further setting the following steps: the bottom of the rear cover corresponding to the opening of the rear cover is provided with a plurality of first reinforcing ribs which are distributed in a radial shape.

Further setting the following steps: the bottom of the rear cover corresponding to the opening of the rear cover is provided with a plurality of circles of second reinforcing ribs which are arranged in a concentric circle manner.

Compared with the prior art, the utility model has simple and reasonable structure, effectively saves the injection molding material of the rear cover through the arrangement of the glue reducing cavity, reduces the production cost, and effectively simplifies the integral demoulding of the rear cover through the arrangement of the demoulding notch on the rear cover; the cooperation between bunch takeover, sealing washer, tooth lid and the signal line is effectual, and the cooperation in-process of screwing is taken over with the bunch to the tooth lid, and the bunch is taken over and can be produced even radial effort so that the sealing washer embraces the signal line tightly to the sealing washer, so effectively improved the liquid-proof grade, hold the in-process simultaneously tightly and can avoid damaging the signal line, improved the protection grade.

Drawings

Fig. 1 is an exploded schematic view of an outlet structure of a motor encoder according to the present invention;

FIG. 2 is a perspective view of the rear cover;

fig. 3 is a schematic view of the mounting structure of the rear cover on the motor.

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

1. a rear cover; 11. demolding gaps; 12. a material reducing cavity; 13. a first reinforcing rib; 14. a second reinforcing rib; 2. connecting a wire harness; 21. a stopper groove; 3. a seal ring; 31. a stop tooth; 4. a tooth cover; 5. a signal line; 6. a front cover; 7. an electric motor.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

The utility model relates to a motor encoder's outlet structure is as shown in fig. 3, including motor 7, encoder, protecgulum 6 and hou gai 1 are to closing the formation casing and through bolt fixed mounting on the tip of motor 7, the shape of this casing and motor 7's tip shape looks adaptation, the encoder is installed in the casing and the perisporium that the signal line 5 of encoder passed the casing extends to the casing outside.

The utility model relates to a wire outlet structure of a motor encoder, which is shown in figure 1 and comprises a rear cover 1, a sealing ring 3, a tooth cover 4 and a signal wire 5; the rear cover 1 is a thin shell structure with an upward opening, a wire harness connecting pipe 2 communicated with an inner cavity of the rear cover 1 is integrally arranged on the outer wall of the rear cover 1 correspondingly, the encoder is correspondingly arranged in the inner cavity of the rear cover 1, and a signal wire 5 of the encoder penetrates through the wire harness connecting pipe 2 to the outside of the rear cover 1; the bunch connection pipe 2 is provided with external threads corresponding to the outer pipe wall and a plurality of stop grooves 21 corresponding to the pipe hole wall; the sealing ring 3 is at least partially embedded in the pipe hole of the wire harness connecting pipe 2, and a plurality of stopping teeth 31 matched with the stopping grooves 21 are arranged on the outer wall of the sealing ring 3 corresponding to the part of the sealing ring arranged in the pipe hole, so that the sealing ring 3 can be effectively prevented from rotating in the wire harness connecting pipe 2, and a signal wire 5 of the encoder extends out of the rear cover 1 through an inner hole of the sealing ring 3; the tooth cover 4 is covered on the wire harness connecting pipe 2, the inner wall of the tooth cover 4 is provided with an external thread matched with the external thread, and the sealing ring 3 can hold the signal wire 5 tightly to provide sealing matching effects between the sealing ring 3 and the signal wire 5 and between the sealing ring 3 and the wire harness connecting pipe 2 by screwing the tooth cover 4 on the wire harness connecting pipe 2, so that the liquid-proof grade is greatly improved; meanwhile, in the screwing process of the tooth cover 4, the radial acting force of the wire harness connecting pipe 2 on the sealing ring 3 is uniformly distributed, so that the signal wire 5 can be effectively prevented from being damaged, and the protection grade of the signal wire 5 is improved; preferably, the sealing ring 3 can be made of rubber materials or silica gel materials, a plurality of circles of waterproof bulges are arranged in the inner hole of the sealing ring 3 corresponding to the inner hole, and therefore when the tooth cover 4 is screwed to enable the sealing ring 3 to be tightly attached to the signal wire 5, a plurality of protective barriers can be formed between the waterproof bulges and the signal wire 5, and therefore the liquid-proof performance is improved.

In the above scheme, as shown in fig. 2, a demolding notch 11 is provided between the outer wall of the rear cover 1 corresponding to the opening of the rear cover and the harness adapter tube 2, and the depth of the demolding notch 11 is gradually deepened from the harness adapter tube 2 to the opening, so that the design can effectively facilitate injection molding and demolding of the rear cover 1.

In the above solution, as shown in fig. 2 and 3, the bottom of the rear cover 1 corresponding to the opening thereof is provided with a plurality of first reinforcing ribs 13 distributed radially and a plurality of second reinforcing ribs 14 arranged in a concentric circle structure, and the first reinforcing ribs 13 and the second reinforcing ribs 14 can be provided with different thicknesses as required, so as to save materials on the premise of ensuring strength.

In the above scheme, as shown in fig. 2, the circumferential wall of the rear cover 1 is provided with a plurality of glue reducing cavities 12 at intervals corresponding to the circumferential wall in the thickness direction, so that on the premise of ensuring the strength of the rear cover 1, the number of injection molding materials is effectively reduced, and the production cost is reduced.

The above disclosure is only for the embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. The wire outlet structure of the motor encoder is characterized by comprising a rear cover, a tooth cover and a sealing ring, wherein the rear cover is of a thin shell structure with an upward opening;

2. The outgoing line structure of the motor encoder as claimed in claim 1, wherein a plurality of stopping grooves are formed on the inner hole wall of the wire harness connection pipe, and a plurality of stopping teeth matched with the stopping grooves are arranged on the portion of the sealing ring embedded in the wire harness connection pipe.

3. The outlet structure of the motor encoder as claimed in claim 1, wherein the sealing ring is provided with a plurality of waterproof protrusions corresponding to the inner hole.

4. The outgoing line structure of the motor encoder according to claim 1, wherein a demolding notch is provided between the outer wall of the rear cover corresponding to the opening of the rear cover and the wire harness connection pipe, and the depth of the demolding notch is gradually deepened from the wire harness connection pipe to the opening.

5. The outgoing line structure of the motor encoder according to claim 1, wherein the peripheral wall of the rear cover is provided with a plurality of glue reducing cavities at intervals corresponding to the periphery in the thickness direction of the peripheral wall.

6. The outlet structure of the motor encoder as claimed in claim 1, wherein the rear cover is provided with a plurality of first ribs radially distributed at a bottom corresponding to the opening of the rear cover.

7. The outgoing line structure of the motor encoder as claimed in claim 1 or 6, wherein the bottom of the opening of the rear cover is provided with a plurality of circles of second reinforcing ribs arranged in concentric circles.