CN214899260U - Novel subminiature conductive slip ring - Google Patents

Abstract

The utility model discloses a novel subminiature conductive slip ring, it includes rotating assembly, brush subassembly, integral type support, big precision bearing and little precision bearing, wherein, the left end internal diameter of integral type support is greater than the internal diameter of its right-hand member, the left and right both ends of integral type support inner chamber all are provided with the bearing position, so that big precision bearing with little precision bearing install respectively in the left and right both ends of integral type support inner chamber. The utility model discloses the core part rotating assembly of device has given up the lamination combination mode of conventional ring piece, insulating piece, ring piece on structural design, and adopt single protruding type ring piece to pile up, through epoxy watering solidification after piling up, final rethread finish machining turning makes the rotating assembly shaping, this kind of rotating assembly forming technique that need not the insulating piece can make the spatial position of ring piece arrange more symmetrically, and the epoxy insulation layer between each ring piece fills closely and compactly, evenly to guarantee the technical performance of electrically conductive sliding ring.

Description

Novel subminiature conductive slip ring

Technical Field

The utility model particularly relates to a lead electrical slip ring technical field, specifically be a novel subminiature leads electrical slip ring.

Background

The conductive slip ring is also called collector ring, collector ring and collector ring, is a precise power transmission device for realizing signal and current transmission of two relative rotating mechanisms, and is particularly suitable for being applied to places requiring unlimited continuous or intermittent rotation and simultaneously requiring power or signal transmission from a fixed position to a rotating position.

The conductive slip ring is used as a key device for transmitting power and control signals from the fixed end to the rotating end, and can be used in almost all industrial fields of weaponry, aviation, navigation, weaponry, new energy development, industrial automation, medical treatment and the like; at present, the conductive slip ring is a rapid development stage of national defense aerospace, aviation, weapon equipment and high-end industrial control and new energy development industries in China in 2030 years, provides good development opportunities for the conductive slip ring, and shows wide market prospects.

With the rapid development of the scientific and technological capability of the state in recent years, various military industry and high-end industrial equipment are developed towards miniaturization and integration, so that continuous miniaturization and even microminiaturization use requirements (such as a microminiaturization slip ring with a radial dimension less than or equal to phi 16mm, an axial dimension less than or equal to 56mm and a 60-loop circuit) are provided for a conductive slip ring serving as an internal power transmission device, and although the microminiaturization conductive slip ring has a good market prospect and a large demand, the realization of the microminiaturization conductive slip ring has great technical difficulty.

In order to prevent the multiple electrical signals (or currents) from interfering with each other when the multiple electrical signals (or currents) are transmitted through the channels formed by the wires → the ring pieces → the brushes, and achieve the purpose of simultaneously realizing high-reliability transmission of the multiple electrical signals, the channels formed by the wires → the ring pieces → the brushes must be insulated and shielded from each other; for a slip ring with a large volume, it is relatively easy to realize mutual insulation and mutual shielding among a plurality of current or signal channels, and for a micro conductive slip ring, it is extremely difficult to realize mutual insulation and mutual shielding among a plurality of paths (not less than 60 loops) of current or signal channels in a very small space (phi 16mm multiplied by 56mm), so that it becomes a key technical difficulty to realize reliable mutual insulation among a plurality of conductive rings on the conductive slip ring.

At present, the forming of the domestic conductive slip ring rotating assembly is mainly realized by a lamination combination bonding scheme, namely, a lamination combination structure is adopted, an insulating sheet is clamped between every two copper ring sheets, and the insulating sheet and the copper ring sheets are bonded together to form a lamination bonding mode; the biggest advantage of adopting this kind of structure scheme is that the insulation between each conducting ring leans on the insulating piece that has good insulating properties to place between the conducting ring to realize, consequently, insulating properties all has reliable guarantee between arbitrary two conducting rings, but its main problem that exists is: the insulating piece and conducting ring copper sheet lean on the adhesive cement to glue together, when the lamination is combined, the glue film between the lamination appears the serious uneven condition of glue film thickness because of the pressure of laminating inconsistent easily, the glue phenomenon can appear losing even in local position, this reflects the area on subminiature conducting slip ring is especially obvious, consequently, the subminiature conducting slip ring subassembly of making with this kind of scheme receives the vibration influence for a long time, or the phenomenon that the glue film drops appears easily under the operating condition that the difference in temperature is big, temperature variation is frequent, and then influences the reliability of conducting slip ring work.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a novel subminiature conductive slip ring in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel subminiature conductive slip ring, its includes rotating assembly, brush subassembly, integral type support, big precision bearing and little precision bearing, wherein, the left end internal diameter of integral type support is greater than the internal diameter of its right-hand member, the left and right both ends of integral type support inner chamber all are provided with the bearing position, so that big precision bearing with little precision bearing install respectively in the left and right both ends of integral type support inner chamber, rotating assembly includes rotation axis, protruding type ring piece, ring lead and rotating flange, the rotation axis set up in the integral type support, just the rotation axis has the hole that is hollow structure and sets up, fixed cover is equipped with a plurality ofly on the outer wall of rotation axis protruding type ring piece, every protruding type ring piece homoenergetic draws forth and is located in the rotation axis hole the right-hand member of ring lead, the left side, the little precision bearing of rotation axis surface, The large precision bearing and the small precision bearing are respectively sleeved at the right two ends in a matched manner, and the left end of the rotating shaft extends out of the large precision bearing and is fixedly connected with the rotating flange;

the outer wall of the integrated support is fixedly provided with the electric brush assembly, the electric brush assembly is fixedly provided with electric brush wires, the lower end portions of the electric brush wires are in friction contact with the outer surface of the convex ring piece, and brush lead wires are led out of the upper end portions of the electric brush wires.

Further, preferably, epoxy resin is filled between every two adjacent convex ring pieces and in the inner hole of the rotating shaft.

Further, as preferred, the outer surface of integral type support adaptation cover is equipped with the dustcoat, just integral type support with the dustcoat adopts a plurality of the countersunk cross head screw looks fixed connection.

Further, as a preferred option, the left side of the rotating flange is fittingly covered with a cover plate.

Further, preferably, a locking nut is fittingly pressed on the right side of the small precision bearing.

The utility model adopts the above technique, compare with current technique and have following beneficial effect: the utility model discloses the device is to the conducting ring that exists when adopting the lamination combination scheme of cohering to make subminiature conductive slip ring at present domestic and abroad and easily comes unstuck, the poor problem of product reliability between the insulating piece, on the basis of carrying out a large amount of experimental studies, and the problem that traditional lamination scheme exists has successfully been overcome to the first creation integration rotating assembly shaping structure model, therefore the utility model discloses an effect that not only mutual insulation but also realization reliable connection, glue film can not drop between two conductive loop has improved the environmental suitability and the reliability of work of product.

Drawings

FIG. 1 is a schematic structural diagram of a novel subminiature conductive slip ring;

fig. 2 is a schematic structural diagram of a rotating assembly in a novel subminiature conductive slip ring;

FIG. 3 is a schematic diagram of the relationship between the protruding ring plate and the ring lead in the novel subminiature conductive slider ring;

fig. 4 is a schematic view of turning a cured convex ring plate in a novel subminiature conductive slip ring.

In the figure: 1. a rotating assembly; 2. locking the nut; 3. an electric brush assembly; 4. an integral bracket; 5. a housing; 6. a cover plate; 7. a large precision bearing; 8. a small precision bearing; 9. a cross countersunk head screw; 10. a rotating shaft; 11. a convex ring piece; 12. looping a lead; 13. an epoxy resin; 14. electric brush wires; 15. brushing a lead; 16. the flange is rotated.

Detailed Description

With reference to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below.

Example (b): referring to fig. 1-4, the present invention provides a technical solution: a novel microminiature conductive slip ring comprises a rotating component 1, a brush component 3, an integrated bracket 4, a large precision bearing 7 and a small precision bearing 8, wherein the inner diameter of the left end of the integrated bracket 4 is larger than that of the right end of the integrated bracket, the left and right ends of the inner cavity of the integrated bracket 4 are respectively provided with a bearing position so that the large precision bearing 7 and the small precision bearing 8 are respectively arranged at the left and right ends of the inner cavity of the integrated bracket 4, the rotating component 1 comprises a rotating shaft 10, convex ring pieces 11, ring leads 12 and a rotating flange 16, the rotating shaft 10 is arranged in the integrated bracket 4, the rotating shaft 10 is provided with an inner hole which is arranged in a hollow structure, a plurality of convex ring pieces 11 are fixedly sleeved on the outer wall of the rotating shaft 10, each convex ring piece 11 can lead out the right end of the ring lead 12 which is arranged in the inner hole of the rotating shaft 10, the left and right ends of the outer surface of the rotating shaft 10 are respectively sleeved with the large precision bearing 7 and the small precision bearing 8, the left end of the rotating shaft 10 extends out of the large precision bearing 7 and is fixedly connected with a rotating flange 16;

the outer wall of the integrated bracket 4 is fixedly provided with a brush component 3, a brush wire 14 is fixedly arranged on the brush component 3, the lower end part of the brush wire 14 is in frictional contact with the outer surface of the convex ring piece 11, and a brush lead 15 is led out from the upper end part of the brush wire 14; specifically, the ring lead 12 serves as a slip ring rotation end lead, and the brush lead 15 serves as a slip ring fixing end lead.

In this embodiment, the epoxy resin 13 is filled between every two adjacent convex ring pieces 11 and in the inner hole of the rotating shaft 10, and the epoxy resin glue 13 plays a role in sealing and insulating.

In this embodiment, the outer surface of the integrated bracket 4 is fitted with the outer cover 5, and the integrated bracket 4 and the outer cover 5 are fixedly connected by a plurality of cross countersunk head screws 9.

In this embodiment, the left side of the rotating flange 16 is fitted with a cover plate 6.

In the embodiment, the right side of the small precision bearing 8 is compressed with the locking nut 2 in a matching way; specifically, the locking nut 2 enables the rotating component 1, the integrated bracket 4 and the outer cover 5 to be connected into a whole by pressing the small precision bearing 8.

When the rotary component is specifically implemented, firstly, a ring lead 12 is led out from the inner wall of a convex ring piece 11 in a welding mode, then, the convex ring piece 11 is sleeved into the rotary shaft 10 from left to right, the ring lead 12 is led out from the left end through a hollow inner hole of the rotary shaft 10, then, the rotary flange 16 is tightly pressed on each convex ring piece 11 from the left end, the rotary flange 16 and the rotary shaft 10 are fixed together through screws, finally, epoxy resin glue is poured from the hollow inner hole of the rotary shaft 10 at the left end, the epoxy resin glue is filled in the inner hole of the rotary shaft 10 and all gaps among the convex ring pieces 11, the epoxy resin glue is solidified, then, a lathe tool is used for turning all protruding parts of the end part of the convex ring piece 11 in the diameter direction, so as to ensure that short circuit among the ring pieces is avoided, then, an inverted trapezoidal groove is turned on the outer wall of the ring piece, and then, electroplating is carried out on the ring piece, namely, and the machining of the rotary component is completed.

It should be noted that the projected portions of each of the convex ring segments 11 (i.e., the gaps between each adjacent convex ring segment 11) correspond to 1/2 of the width of the conductive ring.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. The utility model provides a novel subminiature conductive slip ring, its includes rotating assembly (1), brush subassembly (3), integral type support (4), big precision bearing (7) and little precision bearing (8), wherein, the left end internal diameter of integral type support (4) is greater than the internal diameter of its right-hand member, the left and right both ends of integral type support (4) inner chamber all are provided with the bearing position, so that big precision bearing (7) with little precision bearing (8) install respectively in the left and right both ends of integral type support (4) inner chamber, its characterized in that: the rotating assembly (1) comprises a rotating shaft (10), convex ring pieces (11), a ring lead (12) and a rotating flange (16), the rotating shaft (10) is arranged in the integrated support (4), the rotating shaft (10) is provided with an inner hole which is arranged in a hollow structure, the outer wall of the rotating shaft (10) is fixedly sleeved with the convex ring pieces (11), each convex ring piece (11) can lead out the right end of the ring lead (12) which is positioned in the inner hole of the rotating shaft (10), the left end and the right end of the outer surface of the rotating shaft (10) are respectively sleeved with the large precision bearing (7) and the small precision bearing (8) in a matching manner, and the left end of the rotating shaft (10) extends out of the large precision bearing (7) and is fixedly connected with the rotating flange (16);

the outer wall of the integrated support (4) is fixedly provided with the electric brush assembly (3), the electric brush assembly (3) is fixedly provided with electric brush wires (14), the lower end parts of the electric brush wires (14) are in friction contact with the outer surface of the convex ring piece (11), and brush lead wires (15) are led out from the upper end parts of the electric brush wires (14).

2. The novel subminiature conductive slip ring according to claim 1, wherein: and epoxy resin (13) is filled between every two adjacent convex ring pieces (11) and in the inner hole of the rotating shaft (10).

3. The novel subminiature conductive slip ring according to claim 2, wherein: the integrated support is characterized in that an outer cover (5) is sleeved on the outer surface of the integrated support (4), and the integrated support (4) is fixedly connected with the outer cover (5) through a plurality of cross countersunk head screws (9).

4. The novel subminiature conductive slip ring according to claim 1, wherein: the left side of the rotating flange (16) is pressed with a cover plate (6) in a matching way.

5. The novel subminiature conductive slip ring according to claim 1, wherein: and a locking nut (2) is matched and pressed on the right side of the small precision bearing (8).

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