阅读说明：本技术 一种变孔径型复合旋转传输装置 (Variable-aperture type composite rotary transmission device ) 是由 周曾炜 于 2020-10-14 设计创作，主要内容包括：本发明属于电旋转传输技术领域,具体涉及一种变孔径型复合旋转传输装置。本发明包括组合支架、固定在组合支架端部的法兰盘、与法兰盘的输出轴同轴设置的环体组件、设置在组合支架上的电刷组件以及通过连接块设置在环体组件内部的光纤滑环；环体组件设置在组合支架的内部；环体组件包括中心轴、固定在中心轴的引线端的引线端轴、固定在中心轴的浇注端的浇注端轴；中心轴上依次设置有第一环片和第二环片。本发明采用中空的变孔径轴作为中心轴,中心轴外侧设置有不同直径的环片,实现多电信号和电功率的传输,将光纤滑环设置在中心轴的孔径中,既能满足小空间的安装使用的要求,又能实现同时传输电信号、光信号以及电功率的功能。(The invention belongs to the technical field of electric rotary transmission, and particularly relates to a variable-aperture composite rotary transmission device. The invention comprises a combined support, a flange fixed at the end part of the combined support, a ring body component coaxially arranged with an output shaft of the flange, a brush component arranged on the combined support and an optical fiber slip ring arranged in the ring body component through a connecting block; the ring body assembly is arranged inside the combined bracket; the ring body assembly comprises a central shaft, a lead end shaft fixed at the lead end of the central shaft and a pouring end shaft fixed at the pouring end of the central shaft; the central shaft is sequentially provided with a first ring piece and a second ring piece. The optical fiber slip ring is arranged in the aperture of the central shaft, so that the requirements of installation and use in a small space can be met, and the function of simultaneously transmitting electric signals, optical signals and electric power can be realized.)

1. The utility model provides a become compound rotatory transmission device of aperture type which characterized in that: the device comprises a combined support (1), a flange plate (2) fixed at the end part of the combined support (1), a ring body component (3) coaxially arranged with an output shaft of the flange plate (2), an electric brush component (4) arranged on the combined support (1) and an optical fiber slip ring (5) arranged in the ring body component (3) through a connecting block (11); the ring body component (3) is arranged inside the combined support (1);

the ring body assembly (3) comprises a central shaft (31), a lead end shaft (32) fixed at the lead end of the central shaft (31), and a pouring end shaft (33) fixed at the pouring end of the central shaft (31); a first ring piece (34) and a second ring piece (35) are sequentially arranged on the outer side of the central shaft (31);

the lead end shaft (32) is coaxially arranged with an output shaft of the flange plate (2); the central shaft (31) is a hollow variable-aperture shaft, and the aperture of the lead end of the central shaft (31) is smaller than that of the pouring end of the central shaft (31); the fiber slip ring (5) is arranged in a bore of the central shaft (31).

2. The variable-aperture composite rotary transmission device according to claim 1, wherein: the brush assembly (4) includes a first brush assembly (41) disposed on the center shaft (31) near the lead end shaft (32) and a second brush assembly (42) disposed on the center shaft (31) near the cast end shaft (33).

3. The variable-aperture composite rotary transmission device according to claim 2, wherein: the brush filaments of the first brush component (41) are positioned in the v-shaped groove of the first ring sheet (34); the brush filaments of the second brush assembly (42) are positioned in the v-shaped groove of the second ring plate (35).

4. The variable-aperture composite rotary transmission device according to claim 1, wherein: the optical fiber slip ring (5) is fixed on the combined support (1) through a toggle stud (6).

5. The variable-aperture composite rotary transmission device according to claim 1, wherein: the lead end shaft (32), the central shaft (31), the first ring piece (34), the second ring piece (35) and the pouring end shaft (33) are fixed through vacuum pouring epoxy glue.

6. The variable-aperture composite rotary transmission device according to claim 1, wherein: the ring body assembly (3) is rotatably connected with the combined support (1) through a bearing.

7. The variable aperture composite rotary transport device according to any one of claims 1 to 6, wherein: an outer cover (8) is arranged on the outer side of the combined support (1).

Technical Field

The invention belongs to the technical field of electric rotary transmission, and particularly relates to a variable-aperture composite rotary transmission device.

Background

The electric rotary transmission device is a precise power transmission rotary transmission device formed by axially superposing a multi-loop rolling friction pair structure consisting of a rotor, a stator, a structural support member, a bearing and the like, can realize power and signal transmission between two pieces of relative 360-degree unlimited free rotary equipment, and is mainly applied to systems needing signal rotary power transmission in the fields of aviation, aerospace, navigation, weaponry, wind power and the like.

With the rapid development of the rotary transmission technology, the transmission signal types are gradually developed into electric signals and optical signals, and the gradually-increased requirements of the transmission signal types are difficult to be met by the conventional electric rotary transmission device, so that a composite rotary transmission device capable of simultaneously transmitting multiple signals is urgently needed.

Compared with the traditional electric rotary transmission device, the variable-aperture type composite rotary transmission device can realize the simultaneous transmission of optical signals, electric signals and electric power. The variable-aperture composite rotary transmission device disclosed by the invention has the characteristic of simultaneously transmitting light, electric signals and electric power, and can adapt to the working condition that the transmission signals are electric signals and optical signals.

Disclosure of Invention

The invention aims to overcome the defect that optical signals, electric signals and electric power signals cannot be transmitted simultaneously in the prior art, and provides a variable-aperture type composite rotary transmission device which meets the condition of installation space limitation and can simultaneously transmit the optical signals, the electric signals and the electric power by using a novel variable-aperture structure layout mode.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a variable-aperture type composite rotary transmission device comprises a combined support, a flange plate fixed at the end part of the combined support, a ring body assembly coaxially arranged with an output shaft of the flange plate, a brush assembly arranged on the combined support and an optical fiber slip ring arranged in the ring body assembly through a connecting block; the ring body assembly is arranged inside the combined support;

the ring body assembly comprises a central shaft, a lead end shaft fixed at the lead end of the central shaft and a pouring end shaft fixed at the pouring end of the central shaft; a first ring piece and a second ring piece are sequentially arranged on the outer side of the central shaft;

the lead end shaft is coaxially arranged with the output shaft of the flange plate; the central shaft is a hollow variable-aperture shaft, and the aperture of the lead end of the central shaft is smaller than that of the pouring end of the central shaft; the fiber optic slip ring is disposed in the bore of the central shaft.

Further, the brush assembly includes a first brush assembly disposed on the center shaft proximate the lead end shaft and a second brush assembly disposed on the center shaft proximate the cast end shaft.

Further, the brush filaments of the first brush assembly are positioned in the v-shaped grooves of the first ring piece; the brush filaments of the second brush assembly are positioned in the v-shaped groove of the second ring piece.

Further, the optical fiber slip ring is fixed on the combined support through a toggle stud.

Furthermore, the lead end shaft, the central shaft, the first ring piece, the second ring piece and the pouring end shaft are all fixed through vacuum pouring epoxy glue.

Furthermore, the ring body assembly is rotatably connected with the combined support through a bearing.

Furthermore, an outer cover is arranged outside the combined bracket.

The variable-aperture composite rotary transmission device has the beneficial effects that:

1. the optical fiber slip ring is arranged in the aperture of the central shaft, so that the requirements of installation and use in a small space can be met, and the function of simultaneously transmitting electric signals, optical signals and electric power can be realized.

2. The optical fiber slip ring is arranged in the aperture of the central shaft and is not contacted with the inner wall of the central shaft, so that the installation space is reduced, the abrasion of the optical fiber slip ring can be effectively avoided, and the service life of the optical fiber slip ring is prolonged.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 3 is a schematic diagram of the internal structure of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an embodiment of the present invention;

FIG. 5 is a detail view of the first ring segment and first brush assembly portion of FIG. 4;

FIG. 6 is a detail view of the second ring segment and second brush assembly portion of FIG. 4;

FIG. 7 is a cross-sectional view of a ring assembly of an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a central shaft of an embodiment of the present invention;

fig. 9 is a cross-sectional view of a composite support according to an embodiment of the present invention.

In the figure, the device comprises a combined support 1, a combined support 2, a flange plate 3, a ring body assembly 31, a central shaft 32, a lead end shaft 33, a pouring end shaft 34, a first ring plate 35, a second ring plate 4, a brush assembly 41, a first brush piece 42, a second brush piece 5, an optical fiber slip ring 6, a toggle stud 71, a first bearing 72, a second bearing 8, an outer cover 9, a first bearing end cover 10, a second bearing end cover 11 and a connecting block.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Fig. 1-9 show a specific embodiment of a variable-aperture composite rotary transmission device according to the present invention, which includes a combined bracket 1, a flange 2 fixed at an end of the combined bracket 1, a ring body assembly 3 coaxially disposed with an output shaft of the flange 2, a brush assembly 4 disposed on the combined bracket 1, and an optical fiber slip ring 5 disposed inside the ring body assembly 3 through a connecting block 11; the ring body component 3 is arranged inside the combined bracket 1; the ring body component 3 comprises a central shaft 31, a lead end shaft 32 fixed at the lead end of the central shaft 31 and a casting end shaft 33 fixed at the casting end of the central shaft 31; a first ring plate 34 and a second ring plate 35 are sequentially arranged outside the central shaft 31; wherein, the lead end shaft 32 is coaxially arranged with the output shaft of the flange 2; the central shaft 31 is a hollow variable-aperture shaft, and the aperture of the lead end of the central shaft 31 is smaller than that of the pouring end of the central shaft 31; the fiber slip ring 5 is disposed in the bore of the central shaft 31. Referring to fig. 4, 7 and 8, the central shaft 31 is a variable-aperture shaft, and the middle of the shaft is hollow to form a closed cavity.

In the forming mode of the ring body assembly 3 of the embodiment of the invention, the lead end shaft 32, the central shaft 31, the first ring piece 34, the second ring piece 35 and the pouring end shaft 33 are placed according to the position relation shown in fig. 7 by adopting a special pouring tool, then epoxy glue is poured through vacuum pouring, and high-temperature curing forming is carried out.

As shown in fig. 9, the combined bracket 1 has a variable diameter structure, and a screw hole is formed in the inner wall of the combined bracket 1 for mounting the brush assembly 4. Referring to fig. 5 and 6, brush assembly 4 includes a first brush assembly 41 disposed on central shaft 31 adjacent to lead end shaft 32 and a second brush assembly 42 disposed on central shaft 31 adjacent to cast end shaft 33. The brush filaments of the first brush assembly 41 are positioned in the v-shaped grooves of the first ring plate 34; the brush filaments of the second brush assembly 42 are located in the v-shaped grooves of the second ring 35, so as to contact the ring assembly 3 with the brush assembly 4, and the brush assembly 4 is prior art and will not be described in detail herein.

The ring body component 3 is rotatably connected with the combined support 1 through a bearing, and the bearings are arranged at two ends of the ring body component 3, which are in contact with the combined support 1, so that the combined support 1 is prevented from being driven to rotate when the ring body component 3 rotates.

The outer side of the combined support 1 of the embodiment of the invention is provided with the outer cover 8, so that on one hand, the cleanness of the inner part is ensured, and on the other hand, the interference of the outside to the whole device is avoided.

The installation method of the device of the embodiment of the invention is that the ring body component 3 is firstly arranged in the combined support 1, the coaxiality of the ring body component 3 and the combined support is kept to be less than 0.02mm by a precise installation means, the optical fiber slip ring 5 is arranged in the ring body component 3 through the connecting block 11 and is fixed with the rotating end of the connecting block 11 and the optical fiber slip ring 5 through screws, the first brush component 41 and the second brush component 42 are arranged on the combined support 1 through screws, the brush wire of the first brush component 41 is arranged in the v-shaped groove of the first ring piece 34 of the ring body component 3 through adjustment, the brush wire of the second brush component 42 is arranged in the v-shaped groove of the second ring piece 35 of the ring body component 3 through adjustment, the two bearings are respectively arranged in the bearing positions at the two ends of the combined support 1, the first bearing end cover 9 is connected with the combined support 1 through screws, the first bearing 71 is pre-tightened, the second bearing end cover 10 is connected with the lead end shaft 32, the inner race of the second bearing 72 is preloaded and then the housing 8 is mounted on the sectional bracket 1 by screws.

The working principle of the embodiment of the invention is that an external driving force drives a flange plate 2 to rotate, the flange plate 2 transmits the driving force to a lead end shaft 32 through a screw, so that a ring body component 3 rotates, the ring body component 3 is arranged in the aperture of a central shaft 31 when rotating and rotates together with the rotating end of an optical fiber slip ring 5 fixed on a combined support 1 through a toggle stud 6, the ring body component 3 generates sliding friction with brush wires of a first brush component 41 and a second brush component 42 arranged on the combined support 1 in the rotating process to realize the transmission of electric signals and electric power, the optical fiber slip ring 5 is arranged in the ring body component 3, a stator of the optical fiber slip ring 5 is fixed through the toggle stud 6, the optical fiber slip ring 5 is fixed with a connecting block 11 through a screw, the connecting block 11 is driven to rotate while the ring body component 3 rotates, and the rotor end of the optical fiber slip ring 5 is driven to, thereby realizing the transmission of optical signals during the rotation process.

It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.