RU168921U1 - Multi-channel Sliding Current Collector - Google Patents

Abstract

The utility model relates to the field of electrical engineering, in particular to multichannel current-collecting devices used in electronic engineering for transmitting electrical control signals and supply voltages of direct and alternating currents from the fixed part of the product to the movable and vice versa. The essence of the utility model is that the device contains a rotary part and a non-rotary part, which includes an upper stator, a lower stator and a middle stator, which form a housing, a high current contact block, a high current contact block, a low current contact block, a low current contact block, a rotor seal, a cover bearing, wire harnesses connecting the brush holders with external electrical connectors, and the rotary part comprises a rotor flange, a rotor sleeve and a support sleeve, forming a central the first shaft, the high-current rotating disc with rotary switch contacts, the voltage rotating disc with rotary switch contacts, and harnesses connecting the rotating wheels with external electrical connectors. The device achieves the required technical result, which consists in increasing the maintainability and adaptability of assembly and disassembly. 14 ill.

Description

The utility model relates to the field of electrical engineering, in particular to multichannel current-collecting devices used in electronic engineering for transmitting electrical control signals and supply voltages of direct and alternating currents from the fixed part of the product to the movable and vice versa.

Known multi-channel sliding current collector [RU 2193810, C2, H01R 39/02, 39/08, 11/27/2002], designed to transmit electrical signals from the fixed part of the machine to the rotary, built mainly into the corresponding hydraulic communication connectors of the crane manipulators, containing rigidly fixed with a fixed part of the hydraulic communication connector is a housing, inside of which there is a central shaft mounted on sliding bearings, with an output shaft fixed to the gate part of the hydraulic communication connector, and the collector part from the group of kinematically connected to the housing and the central shaft and interacting with each other with rotary and rotary push-type electrical contacts communicated by wires with external electrical connectors, and in the device, non-rotary electrical contacts are made in the form of flat metal rings with a pair diametrically riveted to them on one of the sides of the two-leaf contacts from having springy properties conductive material, and rotary ones - in the form of flat metal rings spatially grouped into a block of corresponding contact pairs, current-insulated from each other and from the housing located in the internal cavity of the housing by means of flat ring disconnectors made of dielectric located between them and kinematically connected to the housing material with antifriction properties, the case is made detachable in the form of a closed glass lid of a dielectric material with a removable metal bottom, cr the arm and the bottom of which are provided with annular clamping teeth facing each other in contact with the upper and lower ends of the electrical contact unit, the central shaft is made integral in the form of a flat rod of a rectangular cross-sectional configuration of dielectric material, at the upper end of which is fixed with a finger passed through a radial bearing support in the housing cover with sealing by means of an annular seal metal output shank of tubular type, connected transversely oriented screw with an outer diameter covering it with the possibility of axial movement of a sleeve of dielectric material, equipped with an open socket for accommodating the upper electrical connector and a flat flange, to which a thin-walled protective casing with connecting holes is rigidly docked with axial screws for fixing it to the rotary part hydraulic communication connector, and a removable heel is fixed at the lower end by a transversely oriented screw made of a material with high antifriction properties, fixed in the end bearing support of the bottom of the housing with a split spring retaining ring, the kinematic connection of fixed electrical contacts and flat ring disconnectors with the housing is made by fixing them relative to it in the circumferential direction with the possibility of axial movement using a flat embedded key made of dielectric material interacting with its middle part with open slots of the corresponding profile in the bodies of the rings of the indicated electrical contacts and flat disconnectors, and the ends with longitudinally oriented grooves of the same configuration on the outer side surface of the ring teeth of the cover and the bottom of the housing, and the kinematic connection of the rotary electrical contacts with the central shaft is made by fixing them relative to its flat rod in the circumferential direction with the possibility of axial movement with the help of central grooves formed in the body of the indicated electrical contacts, profiled along the transverse se eniyu rod. This design of a multi-channel sliding current collector is too complex, has a sufficiently large axial and transverse dimensions and does not provide maintainability.

The disadvantage of this device is the relatively low maintainability.

The closest analogue of the proposed is a multi-channel sliding current collector [patent RU 2351044, C2, H01R 39/00, 03/27/2009], comprising a cylindrical housing, inside of which there is a central shaft mounted on bearing bearings, a current-collecting part from the group of kinematically connected to the central shaft and interacting between a rotary and non-rotary electrical contacts, grouped into a block and communicated through wires with external electrical connectors through the output channels of the wiring, several blocks, mounted on a central shaft and assembled by means of tie rods into a bag, the block is made in the form of a functionally complete module and consists of a cylindrical metal segment sleeve made of dielectric material, for example, fiberglass, closed on top and bottom with insulating covers, inside of which are glued on the inside of each disk holders made of insulating material, such as fiber plastic, and a rotating disk located between them, fixed electric the contacts are made in the form of combs located in the bodies of the disk holders concentrically to the central shaft with crescent rings with petal contacts vertically oriented towards the rotating disk and the opposite ends pointing, the rotary contacts made in the form of flat metal rings symmetrically located concentrically to the central shaft on the opposite planes of the rotating disk , the central shaft is made in the form of a cross-shaped rod in the cross section of the config radios with a longitudinal groove on one rib of the cross section, the housing is made with an outer flange at the upper end and provided with diametrically located protrusions in its lower part, the kinematic connection of the rotary electrical contacts with the central shaft is made by fixing them relative to it in the circumferential direction and with the possibility of axial movement by fixed in a rotating disk of a dowel of a dielectric material made with a head profiled over a longitudinal cross section of the central groove of the central shaft, the output channels for laying wires to the lower external electrical connectors are made in the form of through longitudinal cavities formed by the inner surface of the casing and segments of the casing, the output channels for laying wires to the upper external electric connectors are made in the form of through longitudinal cavities formed by the walls of the landing holes of the blocks with cross-shaped ribs of the central shaft.

The disadvantage of the closest analogue is its relatively low maintainability due to the presence of a complicated kinematic connection of the electrical contacts with the housing and the central shaft, which makes it difficult to access wires for laying (soldering) the electrical contacts. In addition, it is difficult to replace failed electrical contacts without completely disassembling the device.

All this complicates the design of the collector device as a whole, does not provide maintainability of the device and requires complex technological equipment for assembly.

The objective of this utility model is to eliminate these drawbacks, simplify the design and improve on this basis its technical and operational qualities, reduce overall dimensions and weight, increase its maintainability and manufacturability of the assembly.

The required technical result achieved in the utility model is to increase the maintainability and manufacturability of the assembly and disassembly.

The problem is solved, and the required technical result is achieved by the fact that the multi-channel sliding current collector is made in the form of a rotatable part and a non-rotatable part, which includes an upper stator, a lower stator and an average stator, forming a housing, a high current contact block, containing a brush holder and high current non-rotating electric contacts of the block contact high-current upper, contact block high-current lower, containing a brush holder and high-current non-rotating electrical contacts of the contact block low current, lower contact block, low-current upper, containing brush holder and low-current non-rotating electrical contacts of the contact block of the low-current upper contact block low-current lower, containing the brush holder and low-current, non-rotating electrical contacts of the contact block of the low-current lower, rotary seal, bearing cover, wire harnesses connecting the connecting wires connectors, and the rotary part includes a rotor flange, a rotor sleeve and a support sleeve, forming a central shaft, a high-current rotating disk with rotary electrical contacts, a low-current rotating disk with rotary electrical contacts, and wire harnesses connecting the rotating disks to external electrical connectors, while the contact blocks of the non-rotating part are mounted on the upper, middle and lower stators through gaskets made of dielectric material, high-current rotating disk is made in the form of a multilayer printed circuit board, the outer layers of which have concentric conductive rotary electrical contact for transmitting high-current signals, a low-current rotating disk is made in the form of a multilayer printed circuit board, the outer layers of which have concentric conductive rotary electrical contacts for transmitting low-current signals, the brush holders of the contact block of the high-current top and the block of contact high-current lower are made in the form of a multilayer printed circuit board, the lower and upper outer the layer of which is designed to accommodate high-current non-rotary electrical contacts, the brush holders of the contact block are low-current of the upper and lower low-current contact block are made in the form of a multilayer printed circuit board, the lower and upper outer layer of which is designed to accommodate low-current non-rotary electrical contacts, and low-current non-rotary electrical contacts are installed on the brush holders so that one half of their even number is directed in the direction of rotation of the disk, and the second half - against the direction of rotation of the disk, high-current non-rotary electrical contacts are installed on the brush holders radially, transmission of rotation under of the movable part is carried out on the central shaft, consisting of a rotor sleeve, a support sleeve and a rotor flange having splines for coupling with the drive, centering and transmission of torque to a high-current rotating disk having three grooves is carried out using a rotor sleeve having three ledges, located on the outer circumference at an angle of 120 ° to each other, and the centering and transmission of torque to a low-current rotating disk having three grooves is carried out using the support sleeve, having three ledges, p memory location along the outer circumference at angles of 120 ° to each other.

The drawings show:

in FIG. 1 is a general view of the inventive multi-channel sliding current collector (wire harnesses and external electrical connectors of the non-rotating part and the rotary part are not conventionally shown);

in FIG. 2 is a view A of FIG. one;

in FIG. 3 is a view B of FIG. 1 (wiring harnesses and external electrical connectors of the rotary part are not conventionally shown);

in FIG. 4 is a view BB of FIG. 2 (wiring harnesses and external electrical connectors of the non-rotating part and the rotating part are not conventionally shown);

in FIG. 5 - block contact high-current top (view from the side of a high-current rotating disk);

in FIG. 6 - contact block high-current lower (view from the side of a high-current rotating disk);

in FIG. 7 - contact block low-current upper (view from the side of a low-current rotating disk);

in FIG. 8 - contact block low-current lower (view from the side of a low-current rotating disk);

in FIG. 9 - high-current rotating disk (view from the side of the block contact high-current top);

in FIG. 10 - high-current rotating disk (view from the side of the block contact high-current bottom);

in FIG. 11 - low-current rotating disk (view from the side of the block contact low-current upper);

in FIG. 12 - low-current rotating disk (view from the side of the contact block low-current lower);

in FIG. 13 - low-current non-rotating electrical contact;

in FIG. 14 - high-current non-rotary electrical contact.

In the drawings are indicated:

1 - upper stator;

2 - lower stator;

3 - medium stator;

4 - brush holder high current top (block contact high current top);

5 - brush holder high current lower (block contact high current lower);

6 - brush holder low-current upper (block contact low-current upper);

7 - brush holder low-current lower (block contact low-current lower);

8 - gasket brush holder high current top;

9 - gasket brush holder high current bottom;

10 - gasket brush holder low-current top;

11 - gasket brush holder low-current lower;

12 - a bearing cover;

13 - wiring harness fixed part;

14 - external electrical connector fixed part;

15 - rotary seal;

16 - coupling screw;

17 - a rotor flange;

18 - rotary sleeve;

19 - supporting sleeve;

20 - high-current rotating disk;

21 - low-current rotating disk;

22 - a plait of wires of a rotary part;

23 - external electrical connector of the rotary part;

24 - the bearing;

25 - low current non-rotating electrical contact;

26 - high current non-rotating electrical contact;

27 - low-current rotary electrical contact;

28 - high-current rotary electrical contact.

The inventive multi-channel sliding current collector contains a housing consisting of a stator 1 top, a stator 2 lower and a stator 3 middle. A central shaft mounted on a bearing support is placed in the housing, including a rotor flange 17, a rotor sleeve 18 and a support sleeve 19, interconnected by screws with a countersunk head.

Technologically, a multi-channel sliding current collector has three assembly units.

The first assembly unit includes: an upper stator 1, a high-current top brush holder gasket 8 and an upper assembly (Fig. 5) - a high-current contact block with a soldered wire harness 13 of the fixed part.

The second assembly unit includes: a lower stator 2, a low-current lower brush holder gasket 11, a rotor seal 15 and a sub-assembly (Fig. 8) - a low-current lower contact block with a soldered wire harness 13 of the fixed part.

The third assembly unit includes: a middle stator 3, a high-current lower brush holder gasket 9, a low-current upper brush holder gasket 10, a bearing 24, a bearing cover 12, a rotary sleeve 18, a support sleeve 19, a high-current rotary disk 20, a low-current rotary disk 21, plaits of 22 rotary wires parts, subassembly (Fig. 6) - low-current contact block with soldered wire harness 13 of the fixed part and sub-assembly (Fig. 7) - low-current contact upper block with soldered wire harness 13 of non-fixed part. The assembly of subassemblies (Fig. 5, 6, 7, 8), the first, second and third assembly units is carried out in parallel. The product includes the first, second and third assembly units, which are combined with clamping screws 16, rotor flange 17, external electrical connectors 14 of the non-rotating part and external electrical connectors 23 of the rotating part.

A high-current rotating disk (Fig. 9, 10) is made in the form of a multilayer printed circuit board, the outer layers of which have concentric conductive copper tracks (high-current rotary electrical contacts 28) of various widths depending on the current strength for transmitting high-current signals.

A low-current rotating disk (Fig. 11, 12) is made in the form of a multilayer printed circuit board, the outer layers of which have concentric conductive copper tracks (low-current rotary electrical contacts 27) of the same width to transmit low-current signals.

In the central part of a high-current rotating disk (Fig. 9, 10) and a low-current rotating disk (Fig. 11, 12) there are through metallized holes of the printed circuit board designed to solder the wire harnesses of the rotary part 22 connecting the rotating disks 20, 21 (Fig. 4 ) with external electrical connectors (sockets) of the rotary part 23 (Fig. 2).

High-current contact blocks upper (Fig. 5) and lower (Fig. 6), respectively, consist of a high-current brush holder 4 upper and lower 5 and high-current non-rotating electrical contacts 26. Low-current contact blocks upper (Fig. 7) and lower (Fig. 8) consist accordingly, from the brush holder of the low-current upper 6 and lower 7 and low-current non-rotary electrical contacts 25.

High-current brush holders, upper 4 and lower 5, are made in the form of a multilayer printed circuit board, respectively, the lower and upper outer layer of which is designed for installation and soldering of high-current non-rotating electrical contacts 26.

Brush holders low-current upper 6 and lower 7 are made in the form of a double-sided printed circuit board, respectively, the lower and upper outer layer of which is designed for installation and soldering of low-current non-rotary electrical contacts 25.

Each brush holder has a protruding outer part, on which there are through metallized holes designed to solder the harness 13 of the wires of the fixed part connecting the brush holder to the external electrical connector 14 of the fixed part.

Low-current non-rotating electrical contacts 25 are installed on the brush holders as follows (Fig. 7, 8). Each concentric conductive copper path (low-current rotary electrical contact 27) of a low-current rotating disk 21 corresponds to an even number of low-current, non-rotary electrical contacts 25 depending on the current strength, half of which is directed in one direction in the direction of rotation of the disk, half in the other direction against the direction of rotation of the disk.

High-current non-rotating electrical contacts 26 are installed on the brush holder radially (Fig. 5, 6), with each concentric current-conducting copper path (high-current rotating electrical contact 28) of a high-current rotating disk 20 corresponding to the number of high-current non-rotating electrical contacts 26 depending on the current strength.

Non-rotating electrical contacts 25, 26 and rotary electrical contacts 27, 28 form contact pairs (25-27 and 26-28), which are connected to the corresponding external electrical connectors 14 and 23, respectively, by the tracks of the printed circuit boards and wires.

Low-current non-rotary electrical contacts (Fig. 13) have a spherical contact and are lobed contacts of conductive material with spring properties. High-current non-rotary electrical contacts (Fig. 14) have overlays made of brush material, for example bronze-graphite, and are lobe contacts made of conductive material with spring properties.

Based on the brush holders of fixed electrical contacts is carried out due to their protrusions (Fig. 5, 6, 7, 8, 13, 14). The fixation of fixed contacts on the brush holders is carried out by soldering their base and protrusions to the brush holder (Fig. 5, 6, 7, 8).

Contact blocks high-current upper and lower and low-current upper and lower are installed on the stators upper 1, middle 2 and lower 3 through the gaskets of the brush holders of high-current upper 8 and lower 9 and low-current upper 10 and lower 11, respectively. The gaskets of the brush holders 8, 9, 10 and 11 are made of a dielectric material, for example, fiberglass.

The rotation of the movable part is transmitted to the central shaft, which consists of the rotor sleeve 18, the support sleeve 19, and the rotor flange 17 having splines for coupling with the drive.

The centering and transmission of torque to a high-current rotating disk 20 having three grooves is carried out using a rotary sleeve 18 having three ledges located on the outer circumference at an angle of 120 ° to each other; centering and transmission of torque to a low-current rotating disk 21 having three grooves is carried out using the support sleeve 19 having three ledges located on the outer circumference at an angle of 120 ° to each other.

The assembly of the inventive multi-channel sliding current collector is quite simple and is as follows.

Initially, four subassemblies are executed in parallel:

contact blocks high-current upper and lower and low-current upper and lower with a soldered plait 13 wires of the non-rotating part are assembled by installing and soldering high-current non-rotating electrical contacts 26 on the brush holders high-current upper 4 (Fig. 5) and lower 5 (Fig. 6) and low-current non-rotating electrocontacts 25 on the brush holders, low-current upper 6 (Fig. 7) and lower 7 (Fig. 8) and soldering the wire harness of the fixed part 13 to the through metallized holes that are located on the protruding outer part of the brush holder her 4, 5, 6 and 7, respectively.

Next, the first, second and third assembly units are assembled in parallel.

Assembly sequence of the first assembly unit:

1. In the stator 1, the upper one is installed and secured with screws with a countersunk head, the gasket of the brush holder of the high-current top 8 and under the assembly (Fig. 5) - the contact block high-current upper with a soldered bundle 13 of wires of the non-rotating part.

2. The free end of the wiring harness of the non-rotating part 13 is passed through the hole provided for this in the stator upper 1.

The assembly sequence of the second assembly unit:

1. In the stator 2, the lower one is installed and fixed with screws with a countersunk head, the gasket of the low-current lower brush holder 11 and the subassembly (Fig. 8) - low-current contact block with a soldered wire harness 13 of the fixed part.

2. The free end of the harness 13 wires of the fixed part is passed through the hole provided for this in the lower stator 2.

3. A rotary seal15 is installed in the groove of the stator 2 of the lower 2.

Assembly sequence of the third assembly unit:

1. In the middle stator 3, a bearing 24 is mounted, which is fastened with a bearing cover 12 using countersunk screws.

2. In the stator 3, the middle one is installed and secured with screws with a countersunk head, gaskets of brush holders for high-current lower 9 and low-current upper 10 and subassembly; contact block high-current lower (Fig. 6) and low-current upper (Fig. 7) with soldered wire harnesses 13 of the fixed part .

3. On the inner ring of the bearing 24 is installed sleeve 19 supporting.

4. On the inner ring of the bearing 24, depending on the thickness of the high-current rotary disk 20, if necessary, an expansion joint is installed.

5. On the supporting sleeve 19, a high-current rotating disk 20 with soldered wire harnesses 22 of the rotary part is mounted and secured with countersunk screws.

6. On a high-current rotating disk 20, the rotor sleeve 18 is mounted and secured with countersunk screws.

7. On the supporting sleeve 19, a low-current rotating disk 21 with soldered wire harnesses 22 of the rotary part is mounted and secured with countersunk screws, while the free ends of the wire harnesses 22 are passed through the support sleeve 19 and rotor sleeve 18 intended for this window.

Final assembly sequence:

1. The free ends of the harnesses 13 wires of the fixed part, soldered to the contact blocks high-current lower and low-current upper, are passed through the holes intended for this purpose in the stators upper 1 and lower 2, respectively.

2. The first, second and third assembly units are combined using 16 tightening screws using sealant applied to the end surfaces of the upper stator 1, lower stator 2 and middle stator 3.

3. The rotor flange 17 is mounted and secured to the rotor sleeve 18 with the countersunk head screws, while the free ends of the rotary part harnesses 22 are passed through the rotor flange 17 intended for this window.

4. The second ends of the wire harnesses of the non-rotating part 13 and the rotating part 22 are soldered to the external electrical connectors of the non-rotating part (plugs) 14 and the rotary part (sockets) 23, respectively.

Dismantling is carried out in the reverse order.

A multi-channel sliding current collector operates as follows.

The drive rotates the central shaft, which transmits rotation to rotating disks, high current 20 and low current 21, while concentric conductive copper tracks (rotary electrical contacts 27 and 28) slide relative to the tab contacts (non-rotary electrical contacts 25 and 26), due to which electrical connection between external electrical connectors (sockets) of the rotary part 23 and external electrical connectors (plugs) of the non-rotary part 14.

The effectiveness of the technical solutions incorporated into the design of the inventive multi-channel sliding current collector consists in simplifying the design and improving its technical and operational qualities on this basis, reducing overall dimensions and weight, increasing its maintainability and manufacturability, thereby achieving the required technical result.

The multi-channel sliding current collector is simple in design, has a sufficient number of simultaneously transmitted current collector circuits of electrical signals of various frequencies and powers.

The technology of its manufacture and assembly allows you to quickly master its production. The incorporated design solutions allow for quick replacement of worn-out rubbing elements of the current collector, while only one assembly unit with a faulty element can be disassembled.

Claims (1)

A multi-channel sliding current collector comprising a rotatable part and a non-rotatable part, which includes an upper stator, a lower stator and a middle stator, forming a housing, a high current contact block containing a brush holder and high current non-rotating electrical contacts of a high current contact block, a high current contact block containing a brush holder and high current non-rotating electrical contacts of the contact block high-current lower, contact block low-current upper, containing brush l and low-current non-rotary electrical contacts of the contact low-current upper block, low-current contact lower block containing a brush holder and low-current non-rotary electrical contacts of the low-voltage contact lower block, rotor seal, bearing cover, wire harnesses connecting the brush holders with external electrical connectors, the rotary part containing the rotor flange rotor and bearing bush, forming the central shaft, high-current rotating disk with rotary electrical contacts, weak an exact rotating disk with rotary electrical contacts, and wire harnesses connecting the rotating disks with external electrical connectors, while the contact blocks of the non-rotating part are mounted on the upper, middle and lower stators through gaskets made of dielectric material, a high-current rotating disk is made in the form of a multilayer printed circuit board, external the layers of which have concentric conductive rotary electrical contacts for transmitting high-current signals, a low-current rotating disk made in the form of many a layered printed circuit board, the outer layers of which have concentric conductive rotary electrical contacts for transmitting low-current signals, the brush holders of the contact block of the high-current top and the contact block of high-current lower are made in the form of a multilayer printed circuit board, the lower and upper outer layer of which is designed to accommodate high-current, non-rotary electrical contacts, brush holders of the contact block low-current upper and contact low-current lower block made in the form of a multilayer furnace circuit board, the lower and upper outer layer of which is designed to accommodate low-current non-rotary electrical contacts, and low-current non-rotary electrical contacts are installed on the brush holders so that one half of their even number is directed in the direction of rotation of the disk, and the second half is against the direction of rotation of the disk, high-current non-rotary the electrical contacts are mounted on the brush holders radially, the rotation of the moving part is transmitted to the central shaft, consisting of a rotor sleeve, bearing bush and the rotor flange having splines for coupling with the drive, centering and transmitting torque to a high-current rotating disk with three grooves is carried out using a rotor sleeve having three ledges located on the outer circumference at an angle of 120 ° to each other, and The centering and transmission of torque to a low-current rotating disk having three grooves is carried out using a support sleeve having three ledges located on the outer circumference at an angle of 120 ° to each other.

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