CN113644511A - Rotary transmission device adopting rolling ring structure and transmission method thereof - Google Patents
Rotary transmission device adopting rolling ring structure and transmission method thereof Download PDFInfo
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- CN113644511A CN113644511A CN202110913200.6A CN202110913200A CN113644511A CN 113644511 A CN113644511 A CN 113644511A CN 202110913200 A CN202110913200 A CN 202110913200A CN 113644511 A CN113644511 A CN 113644511A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 191
- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
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Abstract
The invention relates to a rotary transmission device adopting a rolling ring structure and a transmission method thereof, belongs to the technical field of rotary power transmission equipment, and solves the problem of poor transmission stability caused by abrasion in the rotary transmission process in the prior art. The rolling ring is in rolling contact with the conducting ring, and is arranged between the rolling ring supporting block and the conducting ring; the conducting ring and the rolling ring supporting block are connected with the cable to achieve rotary transmission, the rolling ring unit is installed on the fixing frame, and adjustment of pressing force of the rolling ring can be achieved through adjusting the installation position. The invention realizes reliable and stable transmission of electric power by adjusting the contact pressure between the rolling ring and the conducting ring.
Description
Technical Field
The invention relates to the technical field of rotary power transmission equipment, in particular to a rotary transmission device adopting a rolling ring structure and a transmission method thereof.
Background
The rotary transmission device in the current market realizes the rotary transmission of signals and power in a sliding friction mode. The contact resistance is unstable due to the sliding friction at high-speed rotation, and in order to stabilize the contact resistance, the pressure of the sliding friction is often increased to stabilize the sliding friction, but the torque is greatly increased.
Moreover, the slip ring mostly adopts a sliding contact mode, certain noise is generated in use, and due to the sliding friction contact mode, the abrasion between the electric brush and the conducting ring is intensified along with the increase of time, so that the service life of the slip ring is greatly shortened, and the transmission reliability is greatly improved.
Disclosure of Invention
In view of the above analysis, the present invention is directed to a rotary transmission device with a rolling ring structure, so as to solve the problem that the conventional rotary transmission device is prone to unreliable transmission after being worn.
The purpose of the invention is mainly realized by the following technical scheme:
a rotary transmission device employing a rolling ring structure, comprising: the conducting ring, the rolling ring unit and the fixing frame;
the fixed frame and the conducting ring can rotate relatively; the rolling ring unit is arranged on the fixed frame;
the rolling ring unit includes: the rolling ring, the rolling ring supporting block and the rolling ring mounting assembly; the rolling ring supporting block is arranged on the fixed frame through the rolling ring mounting assembly;
the rolling ring is arranged between the rolling ring supporting block and the conducting ring; and two sides of the rolling ring are respectively in rolling contact with the conducting ring and the rolling supporting block; the rolling ring supporting block is connected with a first cable; the conductive ring is connected with a second cable.
Furthermore, the fixing frame is cylindrical, and a plurality of layers of rolling ring units are radially arranged on the fixing frame; each layer of rolling ring unit corresponds to one conducting ring.
Further, each layer of rolling ring units is circumferentially provided with a plurality of rolling ring units.
Further, the rolling ring mounting assembly comprises: an insulating sleeve; the fixing frame is provided with radial rolling ring mounting holes; the insulating sleeve is arranged in the rolling ring mounting hole, and the rolling ring supporting block is sleeved inside the insulating sleeve.
Further, the rolling ring mounting assembly further comprises: a fixing ring; a shaft neck is arranged at one end of the rolling ring supporting block, and the fixing ring is sleeved on the shaft neck; the bulge of the insulating sleeve is clamped between the fixing ring and the rolling ring supporting block.
Furthermore, a V-shaped notch is formed in the other end of the rolling ring supporting block, the rolling ring is arranged in the V-shaped notch, and the rolling ring is in line contact with the V-shaped notch.
Further, still include: an insulating column; a plurality of conducting rings are sleeved on the insulating column, and an insulating ring is arranged between every two adjacent conducting rings.
The insulating column is sleeved outside the mandrel; the bottom of the mandrel is connected with the fixed frame through a first bearing; the upper part of the mandrel is connected with the fixed frame through a second bearing.
Further, a bearing retainer ring is fixedly arranged above the mandrel; the bearing retainer ring is connected with the upper part of the fixed frame through a second bearing; a bearing cover plate is arranged above the second bearing; and a bearing cover plate gasket is arranged between the bearing cover plate and the second bearing.
Furthermore, an upper wire outlet seat is arranged at the upper end of the bearing retainer ring; the second cable is led out from the upper wire outlet seat;
a shell is arranged outside the fixed frame; a sealing ring is arranged between the upper end of the shell and the upper wire outlet seat and can rotate relatively;
a lower cover plate is fixedly arranged at the lower end of the shell; a first socket is arranged on the lower cover plate; the first cable is folded in the first socket;
an upper cover plate is arranged above the upper wire outlet seat; a second socket is arranged on the upper cover plate; and the second cable is drawn out from the upper wire outlet seat and then is folded in the second socket.
The technical scheme of the invention can at least realize one of the following effects:
1. the invention realizes the rotation transmission by adopting a rolling contact mode, and has the characteristics of low resistance, low noise, small torque, high transmission efficiency, long service life, high reliability and the like; the abrasion between the electric brush and the conducting ring can be reduced, the transmission efficiency is effectively improved, and the service life of a slip ring product is prolonged; the rolling ring unit adopts a modular design, can be matched with conducting rings with different diameters for use, and improves the generalization degree; hollow structure has improved the thermal diffusivity of inside transmission channel, can use with other transmission module combinations simultaneously, like rotatory transmission module cooperation such as optic fibre, intermediate frequency, carries out product function upgrade.
2. According to the rotary transmission device adopting the rolling ring structure, the contact pressure between the rolling ring and the conducting ring can be adjusted, so that the most appropriate contact pressure value can be selected; the reliable contact between the rolling ring and the conducting ring and between the rolling ring and the rolling ring supporting block can be ensured while the free rotation of the rolling ring is realized, and the stability of the rotation transmission is ensured.
3. According to the rotary transmission device adopting the rolling ring structure, the rolling ring units adopt a modular design, can be matched with conducting rings with different diameters for use, have strong universality and can meet different power supply requirements. The rotary transmission device adopting the rolling ring structure is convenient to assemble and can ensure long-time reliable transmission.
4. The rotary transmission device adopting the rolling ring structure can set the distribution quantity of the rolling ring units according to the transmission current; the structure is simple, the hollow part can enhance the internal heat dissipation performance, and the hollow part can be combined with slip ring modules such as an optical fiber slip ring and the like for use.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic structural view of a rotary transmission device adopting a rolling ring structure according to the present invention;
FIG. 2 is a schematic top sectional view of a rotary transmission device using a rolling ring structure according to the present invention;
fig. 3 is a schematic structural view of a rolling ring unit of a rotary transmission device using a rolling ring structure according to the present invention.
Reference numerals:
1-upper cover plate; 2-upper cover plate sealing gasket; 3-mounting a wire outlet seat; 4-sealing ring; 5-a bearing cover plate; 6-bearing cover plate gasket; 7-a bearing retainer ring; 8-an insulating ring; 9-a rolling ring unit; 10-a mandrel; 11-an insulating column; 12-a conductive ring; 13-a fixed frame; 14-a housing; 15-lower cover plate gasket; 16-a lower cover plate;
901-rolling ring; 902-rolling ring support block; 903-an insulating sleeve; 904-fixed ring; 905-first cable.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
Example 1
A specific embodiment of the present invention, shown in fig. 1 to 3, discloses a rotary transmission device using a rolling ring structure, comprising: the device comprises an upper cover plate 1, an upper cover plate sealing gasket 2, an upper wire outlet seat 3, a sealing ring 4, a bearing cover plate 5, a bearing cover plate gasket 6, a bearing retainer ring 7, an insulating ring 8, a rolling ring unit 9, a mandrel 10, an insulating column 11, a conducting ring 12, a fixing frame 13, a shell 14, a lower cover plate sealing gasket 15 and a lower cover plate 16.
Wherein, the fixed frame 13 and the conductive ring 12 can rotate relatively; the rolling ring unit 9 is arranged on a fixed frame 13;
the rolling ring unit 9 comprises a rolling ring 901, a rolling ring supporting block 902 and a rolling ring mounting component; the rolling ring mounting assembly includes an insulating sleeve 903 and a fixed ring 904.
One end of the rolling ring supporting block 902 is mounted on the fixing frame 13 through the rolling ring mounting assembly. The rolling ring 901 is arranged between the rolling ring supporting block 902 and the conductive ring 13; two sides of the rolling ring 901 are respectively in rolling contact with the conductive ring 13 and the rolling support block 902; the rolling ring support block 902 is connected to a first cable 905. The conductive ring 12 is connected to a second cable. When the conducting ring 12 and the fixing frame 13 rotate relatively, reliable rotation transmission between the first cable 905 and the second cable is realized through reliable contact between the rolling ring 901, the conducting ring 12 and the rolling ring supporting block 902, wherein the first cable 905 is used for connecting an external circuit, and the second cable is used for connecting an internal circuit.
In one embodiment of the present invention, the rolling ring unit 9 is fixed on the fixing frame 13 by screws, and the pre-tightening force for contacting the rolling ring unit 9 and the conducting ring 12 is provided by tightening the screws. The rolling ring units 9 are arranged in multiple layers on the fixing frame 13, each layer of rolling ring unit 9 corresponds to one conducting ring 12, the rolling rings 901 are effectively contacted with the corresponding conducting rings 12 under the action of a pretightening force, and the pretightening force between the rolling rings 901 and the conducting rings 12 can be adjusted through screws, so that the rolling rings 901 work under a proper contact pressure.
Further, the fixing frame 13 is cylindrical, and a plurality of layers of the rolling ring units 9 are radially arranged on the fixing frame 13; each layer of the rolling ring units 9 corresponds to one conductive ring 12. A plurality of rolling ring units 9 are arranged on each layer in the circumferential direction.
In one embodiment of the present invention, the rolling ring units 9 are sequentially installed one above another on the fixing frame 13, and each layer of rolling ring units 9 is in effective contact with the corresponding conductive ring 12 of each layer.
Specifically, N layers (N ═ 1, 2, 3, …) of rolling ring units 9 are mounted on the mount 13 as needed, and M (M ═ 1, 2, 3, …) of rolling ring units 9 are mounted per layer. Preferably, the M rolling ring units 9 of each layer are circumferentially and uniformly distributed on the fixing frame 13; when M is equal to 2, the two groups of rolling ring units 9 are uniformly distributed at 180 degrees; when M is 3, 3 groups of rolling ring units 9 are uniformly distributed at 120 degrees; when M is 4, 4 groups of rolling ring units 9 are uniformly distributed at 90 degrees; …, respectively; when M is equal to M, the M groups of rolling ring units 9 are uniformly distributed at 360 degrees/M, and the number of the rolling ring units 9 on each layer is set according to the requirement.
Further, a V-shaped notch is formed in the other end of the rolling ring supporting block 902, the rolling ring 901 is arranged in the V-shaped notch, and the rolling ring 901 is in line contact with the V-shaped notch.
In an embodiment of the present invention, a V-shaped notch is formed in an end of the rolling ring supporting block 902, which is in contact with the rolling ring 901, and the V-shaped notch has a 120 ° slotting angle. The end faces of the two sides of the V-shaped notch of the rolling ring supporting block 902 can limit the displacement of the rolling ring 901 along the circumferential direction of the conductive ring 12, and can prevent the rolling ring 901 from randomly moving in the radial direction, as shown in fig. 2. The edge of the V-shaped slot is beveled, and the beveled limits the displacement of the rolling ring 901 in the vertical direction, so that the rolling ring 901 does not move randomly in the axial direction (vertical direction), and the stability of the rolling contact between the rolling ring 901 and the conductive ring 12 is ensured.
Further, the rolling ring mounting assembly comprises: an insulating sleeve 903 and a retaining ring 904.
The fixed frame 13 is provided with radial rolling ring mounting holes; the insulating sleeve 903 is arranged in the rolling ring mounting hole, and the rolling ring supporting block 902 is sleeved inside the insulating sleeve 903. A shaft neck is arranged at one end of the rolling ring supporting block 902, and the fixing ring 904 is sleeved on the shaft neck; the convex part of the insulating sleeve 903 is clamped between the fixing ring 904 and the rolling ring supporting block 902, and the rolling ring supporting block 902 and the insulating sleeve 903 are fixed into a whole.
Preferably, the insulating sleeve 903 is fixedly mounted on the fixing frame 13 by screws.
Preferably, the retaining ring 904 is fixedly mounted on the journal of the roller ring support block 902 in an interference fit.
The insulating sleeve 903 can be used for adjusting the distance between the rolling ring support block 902 and the conducting ring 12, so as to adjust the pretightening force between the rolling ring 901 and the conducting ring 12, and specifically, the adjusting mode has at least two types:
firstly, adjusting the distance between the rolling ring supporting block 902 and the conducting ring 12 by using an adjusting gasket;
specifically, an adjusting gasket is arranged between the insulating sleeve 903 and the fixed frame 13 and is fixed through a screw; during implementation, the mounting depth of the insulating sleeve 903 in the rolling ring mounting hole on the fixing frame 13 can be adjusted by increasing or decreasing the number of the adjusting gaskets, so that the distance between the rolling ring supporting block 902 and the conducting ring 12 is adjusted, and the pre-tightening force between the rolling ring 901 and the conducting ring 12 is changed.
Alternatively, a spacer is provided between the insulating sleeve 903 and the rolling ring support block 902. Specifically, the adjusting shim is arranged between the protruding portion of the insulating sleeve 903 and the rolling ring supporting block 902, and by changing the number or thickness of the adjusting shim, the radial distance between the V-shaped groove of the rolling ring supporting block 902 and the protruding portion of the insulating sleeve 903 can be adjusted, so that the distance between the rolling ring supporting block 902 and the conducting ring 12 is adjusted, and the pretightening force between the rolling ring 901 and the conducting ring 12 is changed.
Preferably, the number of the adjusting gaskets is n (n is a natural number), and the thickness of the adjusting gaskets is 0.5-1 mm.
Secondly, the insulating sleeve 903 is made of an elastic material, and the insulating sleeve 903 can press the rolling ring supporting block 902 along the radial direction of the fixing frame 13 by screwing down the screw, so that the rolling ring supporting block 902 presses the rolling ring 901. After the installation is completed, the insulating sleeve 903 is in a compressed state, and when the rolling ring 901 and the conductive ring 12 or the rolling ring supporting block 902 are worn, the insulating sleeve 903 gradually recovers from the compressed state to an initial state, and pushes the rolling ring supporting block 902 inward, so that the rolling ring 901 and the conductive ring 12 are always in reliable contact.
Further, other methods may be adopted to adjust the radial installation position of the rolling ring supporting block 902 on the fixing frame 13, so as to adjust the pre-tightening force between the rolling ring 901 and the conducting ring 12, which are the same technical concepts as the present invention and fall into the protection scope of the present invention.
Specifically, the rolling ring supporting block 902 is connected with the insulating sleeve 903 and fixed by the fixing ring 904, two side groove surfaces inside the rolling ring supporting block 902 are in contact with the rolling ring 901, the rolling ring supporting block 902 is connected with the cable 905, when the rolling ring 901 and the conducting ring 12 rotate relatively, rotation transmission between the cable 905 and the conducting ring 12 is realized, and finally current transmission in two relatively rotating part (the upper cover plate 1 and the lower cover plate 16) sockets is completed.
Further, still include: a mandrel 10 and an insulating column 11; the insulating column 11 is sleeved outside the mandrel 10; the bottom of the mandrel 10 is connected with the fixed frame 13 through a first bearing; the upper part of the mandrel 10 is connected with the fixed frame 13 through a second bearing. A plurality of conducting rings 12 are sleeved on the insulating column 11, and an insulating ring 8 is arranged between adjacent conducting rings 12.
In one embodiment of the present invention, as shown in fig. 1, the mandrel 10 is a stepped shaft having an upper shaft portion and a lower shaft portion with different diameters; the insulation column 11 is sleeved outside the upper shaft part, and the insulation column 11 is fixed on the end face of the lower shaft part.
Specifically, a plurality of conducting rings 12 are assembled on the outer layer of the insulating column 11, insulating rings 8 are installed between the conducting rings 12, and the conducting rings 12 are independent from each other by arranging the insulating rings 8.
Further, a bearing retainer ring 7 is fixedly arranged above the mandrel 10; the bearing retainer ring 7 is connected with the upper part of the fixed frame 13 through a second bearing; a bearing cover plate 5 is arranged above the second bearing; and a bearing cover plate gasket 6 is arranged between the bearing cover plate 5 and the second bearing.
In a specific embodiment of the present invention, the retainer ring 7 is engaged with the mandrel 10 and then fixed by an axial screw. The axial distance between the bearing retainer ring 7 and the mandrel 10 is uniquely determined, the installation precision of the bearing is guaranteed, the bearing retainer ring 7 is sleeved outside the mandrel 10, the bearing retainer ring 7 is fixedly connected with the mandrel 10 through screws, and the bearing retainer ring 7 is matched with the fixing frame 13 through a second bearing. The bearing cover plate 5 is fixed with the fixed frame 13, so that the second bearing on the bearing retainer ring 7 is fixed, and the mounting clearance of the second bearing is adjusted through the bearing cover plate gasket 6, so that the inner conducting ring 12 can freely rotate relative to the fixed frame 13.
Specifically, the upper end of the mandrel 10 is provided with a threaded hole, and the mandrel 10 and the bearing retainer ring 7 are fixed by mounting screws in the threaded hole; the distance between the mandrel 10 and the fixing frame 13 in axial fit is ensured to be constant, and further the axial positions of the insulating column 11 and the conducting ring 12 on the mandrel 10 are ensured to be constant.
Further, a second cable penetrates through the insulating column 11 and the mandrel 10, a strip-shaped notch is formed in the mandrel 10, and the second cable is led out along the strip-shaped notch of the mandrel 10.
In a specific embodiment of the present invention, the product core shaft 10 is hollow, and the bar-shaped notches are uniformly distributed in the inner cavity, so that when the rotary transmission device works, the contact portion of the conductive ring 12 generates local heat, and simultaneously the heat generated by the current at the second cable concentration portion is relatively concentrated, and the hollow structure of the core shaft 10 and the bar-shaped notches at the inner cavity are uniformly distributed, which is helpful for the conductive ring 12 and the cable 905 in rotation to perform rapid heat dissipation.
Further, the insulating column 11 is a split structure and is provided with at least two insulating arc pieces, the insulating column 11 is formed by assembling and combining a plurality of insulating arc pieces, and the insulating arc pieces are fixedly matched with each other.
Specifically, the radial arrangement number H (H is 1, 2, 3, …) is set on the insulating column 11 according to the outgoing line requirement of the second cable, and the insulating column 11 is divided into H same-structure split bodies by an integrated structure, so that the matching precision is ensured.
Further, a shell 14 is arranged outside the fixed frame 13, and an upper wire outlet seat 3 is arranged at the upper end of the shell 14; the upper wire outlet seat 3 is fixedly connected with a bearing retainer ring 7; the second cable is led out from the upper outlet base 3. As shown in fig. 1, a sealing ring 4 is arranged between the upper wire outlet base 3 and the shell 14; the upper end of the shell 14 is rotatably matched with the upper wire outlet seat 3 through a sealing ring 4.
Further, as shown in fig. 1, the housing 14 is cylindrical and covers the outside of the entire transfer device. The lower end of the shell 14 is fixedly provided with a lower cover plate 16, and the upper end of the shell 14 is in rotating fit with the upper wire outlet base 3.
An upper cover plate 1 is arranged above the upper wire outlet seat 3; a lower cover plate 16 is fixedly mounted at the lower end of the housing 14. Specifically, the upper wire outlet base 3 is connected with the bearing retainer ring 7 through a screw; the upper wire outlet seat 3 is fixedly connected with the upper cover plate 1 through screws. So that the upper wire outlet base 3, the upper cover plate 1, the bearing retainer ring 7, the mandrel 10, the insulating column 11 and the conducting ring 12 synchronously move. The lower cover plate 16 is fixedly connected with the fixed frame 13, so that the lower cover plate 16, the shell 14, the fixed frame 13 and the rolling ring unit 9 move synchronously.
Specifically, the shell 14 and the fixing frame 13 are fixed by screws, the sealing ring 4 is mounted on the outer cylindrical surface of the upper outgoing line seat 3, the sealing ring 4 is matched with the inner cylindrical surface of the shell 14, and when the upper outgoing line seat 3 and the shell 14 rotate relatively, the dynamic sealing effect is achieved through the sealing ring 4. Preferably, the cross section of the sealing ring 4 is circular, a first arc-shaped sealing groove is formed in the outer cylindrical surface of the upper wire outlet base 3, a second arc-shaped sealing groove is formed in the inner cylindrical surface of the shell 14, and the sealing ring 4 is clamped between the first arc-shaped sealing groove and the second sealing groove to achieve rotary sealing between the upper wire outlet base 3 and the shell 14.
An upper cover plate sealing gasket 2 is arranged between the upper wire outlet seat 3 and the upper cover plate 1, and a lower cover plate sealing gasket 15 is arranged between the shell 14 and the lower cover plate 16. The static sealing effect of the upper part of the rotary transmission device is realized by arranging the upper cover plate sealing gasket 2 between the upper cover plate 1 and the upper wire outlet seat 3. The static sealing effect of the lower part of the rotary transmission device is realized by arranging the lower cover plate sealing gasket 15 between the lower cover plate 16 and the fixed frame 13.
Further, the lower cover plate 16 is fixedly connected with the fixing frame 13, a first socket is arranged on the lower cover plate 16, and the first cable 905 (external cable) is folded in the first socket; the upper cover plate 1 is provided with a second socket, the upper cover plate 1 is fixedly connected with the upper wire outlet base 3, and a second cable (an internal cable) is drawn out from the upper wire outlet base 3 and then is folded in the second socket, as shown in fig. 1.
The first cable 905 is synchronized with the movement of the lower cover 16 and the second cable is synchronized with the movement of the upper cover 1.
When in implementation:
the fixed frame 13 and the shell 14 move synchronously, and the upper wire outlet base 3, the mandrel 10, the insulating column 11 and the conducting ring 12 move synchronously. When the upper wire outlet base 3 and the housing 14 rotate relatively, the conducting ring 12 and the fixing frame 13 also rotate synchronously, so that the conducting ring 12 and the rolling ring supporting block 902 of the rolling ring unit 9 rotate relatively, meanwhile, rolling connection is realized through the rolling ring 901, and rotation transmission is realized in a rolling contact mode.
The rotary transmission device can change the size of the transmission power by adjusting the number of the conducting rings 12 and the number of layers corresponding to the rolling ring units 9.
The rolling ring 901 is tightly pressed on the conducting ring 12 through the rolling ring supporting block 902, the rolling ring supporting block 902 is installed on the fixing frame 13 through the insulating sleeve 903, and by adjusting the radial relative position between the insulating sleeve 903 and the fixing frame 13, the pre-tightening force between the rolling ring 901 and the conducting ring 12 can be adjusted, so that the smooth transmission and the transmission stability of the rotary transmission device are ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A rotary transmission device using a rolling ring structure, comprising: the device comprises a conducting ring (12), a rolling ring unit (9) and a fixed frame (13);
the fixed frame (13) and the conducting ring (12) can rotate relatively; the rolling ring unit (9) is arranged on the fixed frame (13);
the rolling ring unit (9) comprises: the device comprises a rolling ring (901), a rolling ring supporting block (902) and a rolling ring mounting assembly; the rolling ring supporting block (902) is arranged on the fixed frame (13) through the rolling ring mounting assembly;
the rolling ring (901) is arranged between the rolling ring supporting block (902) and the conducting ring (12); two sides of the rolling ring (901) are respectively in rolling contact with the conducting ring (12) and the rolling support block (902); the rolling ring supporting block (902) is connected with a first cable (905); the conductive ring (12) is connected to a second cable.
2. The rotary transmission device with a rolling ring structure according to claim 1, wherein the holder (13) is cylindrical, and the plurality of layers of rolling ring units (9) are radially arranged on the holder (13); each layer of rolling ring units (9) corresponds to one conductive ring (12).
3. The rotary transmission device employing a rolling ring structure as claimed in claim 1, wherein a plurality of the rolling ring units (9) are provided circumferentially per layer.
4. The rotary transmission device employing a rolling ring structure according to claim 1, wherein the rolling ring mounting assembly comprises: an insulating sleeve (903); the fixed frame (13) is provided with radial rolling ring mounting holes; the insulating sleeve (903) is arranged in the rolling ring mounting hole and is fixedly connected with the fixed frame (13); the rolling ring supporting block (902) is sleeved inside the insulating sleeve (903).
5. The rotary transmission device employing a rolling ring structure according to claim 4, wherein the rolling ring mounting assembly further comprises: a fixed ring (904); one end of the rolling ring supporting block (902) is provided with a shaft neck, and the fixing ring (904) is sleeved on the shaft neck; the bulge of the insulating sleeve (903) is clamped between the fixing ring (904) and the rolling ring support block (902).
6. The rotary transmission device with the rolling ring structure as claimed in claim 5, wherein the rolling ring support block (902) is provided with a V-shaped notch at the other end, the rolling ring (901) is arranged in the V-shaped notch, and the rolling ring (901) is in line contact with the V-shaped notch.
7. The rotary transmission device using a rolling ring structure according to claim 1, further comprising: an insulating column (11); a plurality of conducting rings (12) are sleeved on the insulating column (11), and an insulating ring (8) is arranged between every two adjacent conducting rings (12).
8. The rotary transmission device with the rolling ring structure according to claim 7, further comprising a mandrel (10), wherein the insulating column (11) is sleeved outside the mandrel (10); the bottom of the mandrel (10) is connected with the fixed frame (13) through a first bearing; the upper part of the mandrel (10) is connected with the fixed frame (13) through a second bearing.
9. The rotation transmission device adopting a rolling ring structure according to claim 8, wherein a bearing retainer ring (7) is fixedly installed above the mandrel (10); the bearing retainer ring (7) is connected with the upper part of the fixed frame (13) through a second bearing; a bearing cover plate (5) is arranged above the second bearing; and a bearing cover plate gasket (6) is arranged between the bearing cover plate (5) and the second bearing.
10. The rotation transmission device adopting the rolling ring structure as claimed in claim 1, wherein the upper end of the bearing retainer ring (7) is provided with an upper wire outlet seat (3); the second cable is led out from the upper wire outlet seat (3);
a shell (14) is arranged outside the fixed frame (13); a sealing ring (4) is arranged between the upper end of the shell (14) and the upper wire outlet seat (3) and can rotate relatively;
a lower cover plate (16) is fixedly arranged at the lower end of the shell (14); a first socket is arranged on the lower cover plate (16); the first cable (905) is gathered in the first socket;
an upper cover plate (1) is arranged above the upper wire outlet seat (3); a second socket is arranged on the upper cover plate (1); the second cable is drawn out from the upper cable outlet seat (3) and then is collected in the second socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913200.6A CN113644511A (en) | 2021-08-10 | 2021-08-10 | Rotary transmission device adopting rolling ring structure and transmission method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913200.6A CN113644511A (en) | 2021-08-10 | 2021-08-10 | Rotary transmission device adopting rolling ring structure and transmission method thereof |
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| CN113644511A true CN113644511A (en) | 2021-11-12 |
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| CN202110913200.6A Pending CN113644511A (en) | 2021-08-10 | 2021-08-10 | Rotary transmission device adopting rolling ring structure and transmission method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1271717A1 (en) * | 2001-06-25 | 2003-01-02 | Sheng-Hsin Liao | Improved structure of telephone connector |
| CN105465028A (en) * | 2016-01-05 | 2016-04-06 | 农业部南京农业机械化研究所 | Flow regulating device for ventilator testing and using method of flow regulating device |
| CN111934152A (en) * | 2020-07-17 | 2020-11-13 | 中国兵器装备集团上海电控研究所 | Hollow rolling rotary transmission device |
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2021
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1271717A1 (en) * | 2001-06-25 | 2003-01-02 | Sheng-Hsin Liao | Improved structure of telephone connector |
| CN105465028A (en) * | 2016-01-05 | 2016-04-06 | 农业部南京农业机械化研究所 | Flow regulating device for ventilator testing and using method of flow regulating device |
| CN111934152A (en) * | 2020-07-17 | 2020-11-13 | 中国兵器装备集团上海电控研究所 | Hollow rolling rotary transmission device |
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