CN113258367B - Patch wire type power supply device applicable to agriculture - Google Patents
Patch wire type power supply device applicable to agriculture Download PDFInfo
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- CN113258367B CN113258367B CN202110524292.9A CN202110524292A CN113258367B CN 113258367 B CN113258367 B CN 113258367B CN 202110524292 A CN202110524292 A CN 202110524292A CN 113258367 B CN113258367 B CN 113258367B
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- 238000004804 winding Methods 0.000 claims abstract description 47
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 95
- 230000007246 mechanism Effects 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007665 sagging 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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
- B65H75/42—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Landscapes
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides an agricultural applicable plug wire type power supply device, wherein a movable plug wire type power supply is provided with a sliding socket, an anti-falling socket is fixedly arranged on the sliding socket, and the anti-falling socket is connected with a cable; the anti-drop socket is also provided with a cable anti-pull protection device; the cable is connected with an inverter on the agricultural machine after sequentially passing through a wire supporting and laying device and a wire winding and unwinding device which are arranged on the agricultural machine. According to the invention, the interference between cables and plants in the operation process is avoided by adjusting the height and the angle of the stay bars. The limit that agricultural equipment needs to walk according to a fixed track is broken through by freely adjusting the angle of the turntable; the problem that the cable is separated from the socket due to tension is solved through the locking device. The cable protection device avoids the problem that the cable is broken in the operation process. And the winding and unwinding device is used for monitoring the tension of the cable in real time and winding and unwinding the cable in time, so that the problem that the cable resonates in a low-tension state and the cable tilts in a medium-tension state and the vehicle tilts in a high-tension state is avoided.
Description
Technical Field
The invention belongs to the technical field of power supply facilities, and particularly relates to an agricultural applicable plug wire type power supply device.
Background
Under the pressure of energy and environmental protection, new energy driving is also a development direction of agricultural equipment. New energy-driven agricultural equipment has advantages of superior fuel economy and low emission, and thus new energy-driven agricultural equipment is being accepted and developed by more and more researchers. Most of the current electrically driven agricultural equipment adopts a power supply mode of carrying a battery. If the battery capacity is small, the working time of the agricultural equipment is short; if the battery capacity is large, the charging time is long; the operation environment and the operation time of the equipment are limited, and the agricultural equipment is difficult to work for a long time. The electric drive agricultural equipment of plug wire formula can reach stable, long-time power supply's purpose. However, at present, the wire laying mode is adopted when the wire-plugging type electric driving agricultural equipment works, and the cable is laid in a farmland and is easy to interfere with plants. In order to avoid the interference problem between the cable and the plant, an agriculturally suitable wire-plugging power supply device capable of carrying out wire-plugging/laying and wire-rewinding control on the cable according to the operation condition is needed urgently at present.
The cable drum power supply rail flatcar disclosed in Chinese patent publication No. CN108382803A solves the problems that a cable drum power supply cable flatcar is inconvenient to collect and pay off and a cable is stained with oil stains and difficult to clean. In the scheme, the cable is only subjected to position constraint by using the positioning plate, the situation that the cable falls to the ground is difficult to avoid in the operation process, and if other equipment is arranged on the ground of the operation environment, the cable is easy to interfere with the equipment in the operation environment, so that potential safety hazards exist. Also, the cables may interfere with the plants when performing agricultural operations. The technology has higher cost and inconvenient operation; the scheme needs to lay rails, so that the cost is increased; the cables are also distributed according to the track trend, and when the line is required to be changed or turned, the line laying mode is required to be considered, so that the operation is inconvenient. In addition, the technology does not consider cable protection measures, and when the travelling distance is too far, the cable can be separated from the socket due to tension problems or the cable can be broken/deformed in a pulling way.
Disclosure of Invention
The invention provides a wire-plugging type power supply device applicable to agriculture. The winding and the interference of the cable and the plant are avoided through the action of the cable supporting and laying device; the cable is prevented from being broken by the cable protection device; the winding and unwinding device ensures that the cable is uniformly wound on the winding drum, and reduces knotting of the cable; the power supply device ensures that the whole plug wire type device can continuously maintain a stable working state, and simultaneously ensures that the plug does not fall off due to cable tension. The function of reasonably adjusting the working state of the cable is realized, the cable is used in agricultural equipment, the interference problem of the cable and plants can be effectively avoided, the damage of the cable is reduced, and the safety and stability of operation are ensured.
An agricultural applicable plug wire type power supply device comprises a movable plug power supply, wherein a sliding socket is arranged on the movable plug power supply, an anti-falling socket is fixedly arranged on the sliding socket, and a cable is connected with the anti-falling socket;
the anti-drop socket is also provided with a cable anti-pull protection device;
the cable is connected with an inverter on the agricultural machine after sequentially passing through a wire supporting and laying device and a wire winding and unwinding device which are arranged on the agricultural machine; the inverter converts high-voltage alternating current into direct current, and the direct current is directly used by agricultural machinery.
The anti-drop socket comprises a locking buckle and an anti-drop plug, the anti-drop plug is fixedly connected with the shell at the upper end of the sliding socket, and the locking buckle locks the cable anti-pull protection device with the anti-drop plug;
the sliding socket also comprises a conductive copper ring, the conductive copper ring is sleeved on the copper core, the copper core is fixed by the copper core insulating shell, and meanwhile, the conductive copper ring is wrapped by the copper core insulating shell and slides on the copper core; the conductive copper ring and the conductive copper sheet are fixedly connected with the shell at the upper end of the sliding socket, and the copper core is connected with the conductive copper sheet and then enters the anti-drop plug; when the conductive copper ring slides on the copper core, the anti-falling socket slides on the copper core.
The cable anti-pulling protection device comprises a conductive connecting sheet, wherein the conductive connecting sheet connects a socket copper core with a cable copper core, and a cable insulating shell wraps the conductive connecting sheet, the socket copper core and the cable copper core.
The wire supporting and laying device comprises a slewing mechanism which is fixedly connected to a bottom plate on the agricultural machine; the turntable is connected with the slewing mechanism through a turntable pin, and the turntable can freely rotate around the axis of the turntable pin; the lower end of the stay bar and the lower end of the sleeve are respectively hinged with the turntable and respectively rotate around the central axis of the hinged part; the stay bar is a bent bar, a cable passes through the top end of the stay bar, and when tension on the cable acts on the top end of the stay bar, an eccentric distance exists, and the eccentric distance enables the turntable to rotate freely in the revolving mechanism; the top end of the sleeve is fixed at the middle position of the stay bar through a lock nut, and the length of the sleeve is changed by changing the position of the lock nut on the sleeve;
the winding and unwinding device comprises a roller and a sliding block, wherein the roller and the sliding block are fixedly connected to the stay bar, and the roller is positioned below the sliding block; the horizontal smooth rod and the horizontal threaded rod are respectively and fixedly connected to the frame, the through hole on the limiting plate is in sliding connection with the smooth rod, the threaded hole on the limiting plate is in threaded connection with the threaded rod, the threaded rod is driven to rotate by the stepping motor, and when the stepping motor drives the threaded rod to rotate, the limiting plate translates on the smooth rod and the threaded rod; the rubber wheel is fixedly connected to the limiting plate;
the winding and unwinding device also comprises an electric conduction slip ring, the electric conduction slip ring is connected with the winding drum, the winding drum is connected with a frame fixed on the agricultural machinery through a winding drum shaft, and the winding drum can rotate around an axis; the winding drum is driven by a torque motor to rotate; the cable passes through the grooves on the roller and the sliding block, then passes through the rubber wheel and finally is wound on the winding drum.
The conductive slip ring comprises an electric brush, and the electric brush is fixedly connected to an upright post of the conductive slip ring shell through an insulating nut; the conductive slip ring shell is provided with a hole for the cable to enter; the conductive copper core is fixedly connected with the conductive slip ring inner shell; the electric brush is contacted with the conductive copper core and can rotate around the conductive copper core; the inner shell of the conductive slip ring is fixedly connected with the protruding part of the frame.
The cable protection device comprises a pressure sensor, wherein the pressure sensor is fixedly connected to a supporting rod and is pressed by a sliding block, a cable sequentially passes through a roller and the sliding block, the cable is straightened and forms a fixed angle due to the supporting and acting force of the sliding block, meanwhile, the pressure of the cable to the sliding block acts on the pressure sensor, the pressure sensor is in communication connection with an encoder, and the encoder is in communication connection with a stepping motor and a torque motor;
the inverter is electrically connected with the power battery to form a passage.
According to the invention, the interference between cables and plants in the operation process is avoided by adjusting the height and the angle of the stay bars. The limit that agricultural equipment needs to walk according to a fixed track is broken through by freely adjusting the angle of the turntable; the problem that the cable is separated from the socket due to tension is solved through the locking device. The cable protection device avoids the problem that the cable is broken in the operation process. And the winding and unwinding device is used for monitoring the tension of the cable in real time and winding and unwinding the cable in time, so that the problem that the cable resonates in a low-tension state and the cable tilts in a medium-tension state and the vehicle tilts in a high-tension state is avoided.
Compared with the prior art, the invention has the following technical effects:
1. the operation safety is ensured.
According to the invention, due to the existence of the wire supporting and laying device, the working state of the wire cable can be adjusted according to the height of the plant and the operation requirement (the wire cable can be supported to a certain height or rotated by a certain angle when the plant is higher), so that the interference between the wire cable and the plant is effectively avoided, and the operation safety is ensured. In addition, when the cable tension is too high or the winding and unwinding device is not timely adjusted, the cable protection device can convert the deformation generated by the tension stress of the cable into the relative sliding of the copper core of the cable, so that the cable is effectively prevented from being broken, and the operation safety is ensured.
2. The power supply cable is effectively ensured to be in the optimal mechanical state.
According to the invention, the tension state of the cable is controlled by the torque motor, the force measuring element and the winding and unwinding device, the tension state of the cable is reflected by the sensor in the scheme, and is timely reflected to the torque motor and the stepping motor, the motor and the winding and unwinding device cooperate, so that the problems of sagging of the cable with low tension, resonance of the cable with medium tension, tipping of the vehicle with high tension, breaking of the cable and the like are avoided, and the operation safety of the operation vehicle in a greenhouse is ensured. Meanwhile, manual control is not needed for winding and unwinding the cable, and the control scheme is simple, convenient and easy to implement.
3. The operation has continuity.
In the invention, because the plug-in type power supply position can move, in the operation process (when the equipment is in line feed operation), the power supply position can translate along with the equipment in one direction under the action of moment, so that the power supply is not required to be pulled out when the equipment is in line feed operation. In the scheme, the power battery is mounted, and continuous power supply can be ensured when the power supply is temporarily powered off. In summary, the scheme of the invention can effectively ensure the continuity of operation.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram illustrating the assembly of the cable protection device and the sliding socket of the present invention;
FIG. 3 is a schematic view of the conductive slip ring structure of the present invention;
FIG. 4 is a schematic diagram of a stepper motor connection according to the present invention;
fig. 5 is a schematic diagram of the torque motor connection of the present invention.
Detailed Description
The specific technical scheme of the invention is described by combining the embodiments.
As shown in fig. 1, the wire-plugging type power supply device suitable for agriculture comprises a wire-plugging and laying device, a cable protection device, a wire-coiling and uncoiling device and a power supply device.
The wire supporting and laying device comprises a slewing mechanism 2, wherein the slewing mechanism 2 is fixedly connected to a bottom plate 1 of the agricultural machine; the turntable 3 is connected with the slewing mechanism 2 through a turntable pin 4, and the turntable 3 can freely rotate around the axis of the turntable pin 4; the lower end of the stay bar 5 and the lower end of the sleeve 6 are respectively hinged with the turntable 3 and respectively rotate around the central axis of the hinged part; the stay bar 5 is a bent bar, the cable 10 passes through the top end of the stay bar 5, and when the tension on the cable 10 acts on the top end of the stay bar 5, the eccentricity exists, so that the turntable 3 can freely rotate in the slewing mechanism 2. Due to the turntable pin 4 it is ensured that the turntable 3 will not tip over due to moment action. The stay wire height should also be able to change as plant height changes due to the difference in plant height. The top end of the sleeve 6 is fixed on the middle position of the stay bar 5 through a lock nut, and the length of the sleeve 6 is changed by changing the position of the lock nut on the sleeve 6, so that the purpose of changing the stay wire height is achieved. When the stay 5 is adjusted to the horizontal position, the wire laying operation can be realized as long as the tension on the cable 10 is controlled within a certain small range. The wire supporting and laying device can freely adjust the height and angle of the wire supporting, can freely adjust the rotating angle according to the moment direction, and avoids interference between the cable and the plant and between the cable and the upright post. The cable can be laid on the ground according to the needs by the cable supporting and laying device, so that the risk that the working vehicle is turned over during remote working is avoided.
The power supply device includes a removable plug-in power supply, a power battery 21, and an inverter 22.
As shown in fig. 2, the removable plug-in power supply, the anti-drop socket 17 is fixedly connected with the sliding socket 18. The anti-drop plug 17-2 of the anti-drop socket 17 is fixedly connected with the shell 18-5 at the upper end of the sliding socket, and the locking buckle 17-1 locks the cable anti-pull protection device 16 and the anti-drop plug 17-2 to form an anti-drop effect of the plug-in part. The conductive copper ring 18-2 is sleeved on the copper core 18-3, the copper core 18-3 is fixed by the copper core insulating shell 18-4, and the conductive copper ring 18-2 is wrapped at the same time, and in addition, the conductive copper ring 18-2 can slide on the copper core 18-3; the conductive copper ring 18-2 and the conductive copper sheet 18-1 are fixedly connected with the shell 18-5 at the upper end of the sliding socket, and the copper core of the socket is connected with the conductive copper sheet 18-1 and then enters the anti-drop plug 17-2. Therefore, when the conductive copper ring 18-2 slides on the copper core 18-3, the anti-falling socket 17 slides on the copper core 18-3 (i.e. the upper and lower parts of the sliding socket 18 slide relatively), so as to achieve the purpose of parallel movement of the plug in a certain direction during operation
The cable anti-pulling protection device 16 is fixedly connected to the anti-falling socket 17, the cable anti-pulling protection device 16 comprises a conductive connecting sheet 16-3, the conductive connecting sheet 16-3 connects the socket copper core 16-1 and the cable copper core 16-2, and the cable insulating shell 16-4 wraps the conductive connecting sheet 16-3, the socket copper core 16-1 and the cable copper core 16-2. The conductive connecting sheet 16-3 is at a fixed position, the cable 10 is stressed during operation, and the cable copper core 16-2 is pulled (moved towards the conductive connecting sheet 16-3), so that the tensile stress acting on the cable copper core 16-2 is counteracted partially, and the purpose of protecting the cable 10 is achieved.
The winding and unwinding device comprises a roller 7 and a sliding block 9, wherein the roller 7 and the sliding block 9 are fixedly connected to the stay bar 5; the horizontal smooth rod 11 and the horizontal threaded rod 14 are respectively and fixedly connected to the frame 23, a through hole on the limiting plate 12 is in sliding connection with the smooth rod 11, a threaded hole on the limiting plate 12 is in threaded connection with the threaded rod 14, the threaded rod 14 is driven to rotate by a stepping motor, and when the stepping motor drives the threaded rod 14 to rotate, the limiting plate 12 translates on the smooth rod 11 and the threaded rod 14; the rubber wheel 13 is fixedly connected to the limiting plate 12;
the conductive slip ring 15 is connected with the winding drum 20, the winding drum 20 is connected with the frame 23 through a winding drum shaft, and the winding drum 20 can rotate around an axis; the spool 20 is driven to rotate by a torque motor. The cable 10 passes through the roller 7 and the grooves on the sliding block 9, then passes through the rubber wheel 13 and finally is wound on the winding drum 20. As shown in fig. 5, the torque motor controls the forward and reverse rotation of the spool 20 according to the signal fed back by the pressure sensor 8 through bluetooth, and the cable 10 is wound and unwound. Since the limiting plate 12 is connected with the smooth rod 11 and the threaded rod 14 at the same time, and the smooth rod 11 is fixedly connected with the frame 23, as shown in fig. 4, when the stepping motor controls the rotation of the threaded rod 14, the limiting plate 12 will displace due to the rotation of the threaded rod 14, so that the cable 10 can be uniformly arranged on the winding drum 20. In addition, the cable 10 passes through the gap formed by the two rubber wheels 13 on the limiting plate 12, and the gap is the same as the thickness of the cable 10, so that the phenomena of twisting and knotting of the cable 10 due to tension are reduced.
The torque motor provides a stable torque or a braking torque opposite to the running direction according to the signal fed back by the pressure sensor 8, so that the winding drum can rotate positively and negatively according to the requirement (the winding drum can not maintain the same steering due to overlarge cable tension and lose the normal winding and unwinding functions).
The cable protection device comprises a pressure sensor 8, wherein the pressure sensor 8 is fixedly connected to a stay bar 5 and is pressed by a sliding block 9, a roller 7 is further arranged on the stay bar 5, and the roller 7 is positioned below the sliding block 9; the cable 10 sequentially passes through the roller 7 and the sliding block 9, the cable 10 is straightened and forms a fixed angle due to the support and the action of the sliding block 9, meanwhile, the pressure of the cable 10 on the sliding block 9 acts on the pressure sensor 8, and the tension of the cable 10 can be calculated according to the trigonometric function relation. The pressure sensor 8 is in communication connection with an encoder, and the encoder is in working communication connection with a stepping motor and a torque motor;
the pressure value of the pressure sensor 8 is transmitted to the encoder through Bluetooth, the signal of the encoder controls the operation of the stepping motor and the torque motor, the tension on the cable 10 is protected due to the operation of the motors, and the tension is controlled in a proper range. At the same time, the cable anti-pulling protection device 16 also provides a guarantee for preventing the cable from being damaged, the cable 10 is relatively safe in the operation process, and the operation safety is also guaranteed.
As shown in fig. 3, the conductive slip ring 15 comprises a brush 15-3, and an insulating nut 15-2 fixedly connects the brush 15-3 to a column of the conductive slip ring housing 15-1; the conductive copper core 15-5 is fixedly connected with the conductive slip ring inner shell 15-4; the brush 15-3 is in contact with the conductive copper core 15-5 and can rotate around the conductive copper core 15-5; the conductive slip ring inner shell 15-4 is fixedly connected with the protruding part of the frame 23. After the cable 10 enters the conductive slip ring through the hole of the conductive slip ring housing 15-1, the current flows: the brush 15-3 flows to the conductive copper core 15-5, flows out through the wire connected through the hole of the conductive copper core 15-5, and finally is connected with the cable 10 again. Since the conductive slip ring outer housing 15-1 rotates together with the spool 20 and the conductive slip ring inner housing 15-4 is fixed to the frame 23, the problem of the cable connection between the rotary member and the fixed member is solved.
The power battery 21 and the inverter 22 are connected with the power battery 21 to form a passage after the cable 10 passes through the cable supporting and laying device and the cable winding and unwinding device. Inverter 22 converts the high voltage ac power to dc power, which can be used directly by the device; the power battery 21 is used as a temporary power supply, and can provide power for agricultural equipment when the socket is temporarily disconnected; the power battery 21 and the power supply cable cooperate to temporarily compensate for insufficient power of the agricultural equipment.
The working principle is as follows:
stay line shop line device: in the stay wire laying device as shown in fig. 1, since the stay wire 5 is a bent rod, there is an eccentricity that allows the turntable 3 to freely rotate in the swing mechanism 2 when tension on the cable 10 acts on the top end of the stay wire 5. Due to the turntable pin 4 it is ensured that the turntable 3 will not tip over due to moment action. The stay wire height should also be able to change as plant height changes due to the difference in plant height. The length of the sleeve 6 is changed by changing the position of the lock nut on the sleeve 6, so that the purpose of changing the stay wire height is achieved, and the height adjusting mode in the scheme is stepwise adjustment. When the stay 5 is adjusted to the horizontal position as well, the wire laying operation can be realized as long as the tension on the cable 10 is controlled within a certain small range.
Coiling and uncoiling device: as shown in fig. 1, the torque motor provides a stable torque or a braking torque opposite to the running direction according to the signal fed back by the pressure sensor 8 through bluetooth, and controls the forward and reverse rotation of the winding drum 20 to wind and unwind the cable 10. When the cable is supported, its own weight also becomes a part of the cable tension, so the cable length also has an effect on the cable tension. The length of the cable is recorded in real time at the position of the rubber wheel 13, and the moment motor sets a proper constant moment or braking moment according to the length of the cable. In addition, the cable winding and unwinding control is not only dependent on the cable tension, but also dependent on the travelling direction of the agricultural machine. When the agricultural machinery starts to run from the power supply position and moves in the direction away from the power supply, the cable tension is small, but the cable tension is gradually increased, and the winding and unwinding device performs winding and unwinding; when the agricultural machinery runs from a position far away from the power supply to a direction close to the power supply, the cable tension is large, but the cable tension is gradually reduced, and the winding and unwinding device winds the wire. Since the limiting plate 12 is connected with the smooth rod 11 and the threaded rod 14 at the same time, and the smooth rod 11 is fixedly connected with the frame 23, when the stepping motor controls the rotation of the threaded rod 14, the limiting plate 12 can displace due to the rotation of the threaded rod 14, so that the cable 10 can be uniformly distributed on the winding drum 20. In addition, the cable 10 passes through the gap formed by the two rubber wheels 13 on the limiting plate 12, and the gap is the same as the thickness of the cable 10, so that the phenomena of twisting and knotting of the cable 10 due to tension are reduced. As shown in fig. 4, the conductive slip ring 15 specifically works as follows: the electric brush 15-3 is fixedly connected to the upright post of the conductive slip ring shell 15-1 by the insulating nut 15-2; the conductive copper core 15-5 is fixedly connected with the conductive slip ring inner shell 15-4; the brush 15-3 is in contact with the conductive copper core 15-5 and can rotate around the conductive copper core; the conductive slip ring inner housing 15-4 (insulating) is fixedly connected with the (insulating) protruding portion of the frame 23. After the cable 10 enters the conductive slip ring through the hole of the conductive slip ring housing 15-1 (insulating), the current flows: the brush 15-3 flows toward the conductive copper core 15-5, and then flows out through the wires connected through the holes of the conductive copper core 15-5, and finally is connected with the inner cable 24. Since the conductive slip ring outer housing 15-1 rotates together with the spool 20 (insulation), and the conductive slip ring inner housing 15-4 is fixed with the frame 23, the problem of the cable connection between the rotary member and the fixed member is solved.
A cable protection device: as shown in fig. 1, the cable 10 is straightened and forms a fixed angle by the roller 7 and the slider 9 due to the supporting and force of the slider 9, and simultaneously the pressure of the cable 10 to the slider 9 acts on the pressure sensor 8, and the tension of the cable 10 is calculated by the trigonometric function relation. The pressure value of the pressure sensor 8 is transmitted to the encoder through Bluetooth, the signal of the encoder controls the operation of the stepping motor and the torque motor, the tension on the cable 10 is protected due to the operation of the motors, and the tension is controlled in a proper range. The cable anti-pulling protection device 16 shown in fig. 3, wherein the conductive connecting piece 16-3 connects the socket copper core 16-1 and the cable copper core 16-2, and the cable insulation shell 16-4 wraps the socket copper core 16-1 and the cable copper core to form the cable anti-pulling protection device 16. The conductive connecting sheet 16-3 is at a fixed position, the cable 10 is stressed during operation, and the cable copper core 16-2 is pulled (moved towards the conductive connecting sheet 16-3), so that the tensile stress acting on the cable copper core 16-2 is counteracted partially, and the purpose of protecting the cable 10 is achieved. The connection mode of the stepping motor and the torque motor is shown in fig. 5.
A power supply device: as shown in fig. 2, the anti-drop plug 17-2 is fixedly connected with the upper end shell 18-5 of the sliding socket, and the locking buckle 17-1 locks the cable anti-pull protection device 16 with the anti-drop plug 17-2 to form an anti-drop effect of the plug-in part. The conductive copper ring 18-2 is sleeved on the copper core 18-3, the copper core 18-3 is fixed by the copper core insulating shell 18-4, and the conductive copper ring 18-2 is wrapped at the same time, and in addition, the conductive copper ring 18-2 can slide on the copper core 18-3; the conductive copper ring 18-2 and the conductive copper sheet 18-1 are fixedly connected with the shell 18-5 at the upper end of the sliding socket, and the copper core of the socket is connected with the conductive copper sheet 18-1 and then enters the anti-drop plug 17-2. Therefore, when the conductive copper ring 18-2 slides on the copper core 18-3, the anti-falling socket 17 slides on the copper core 18-3 (i.e. the upper and lower parts of the sliding socket 18 slide relatively), so as to achieve the purpose of parallel movement of the plug in a certain direction during operation. As shown in fig. 1, in addition to the above-described electric power source, a power battery 21 is used as a temporary power supply source, and also provides temporary power to the agricultural equipment when the socket is temporarily disconnected. The cable of power supply can not only charge for power battery, also can cooperate with power battery, and short-term compensation agricultural machinery power is not enough.
Claims (1)
1. The utility model provides a plug wire type power supply device suitable for agriculture, which is characterized in that the plug wire type power supply device comprises a movable plug power supply, a sliding socket (18) is arranged on the movable plug power supply, an anti-falling socket (17) is fixedly arranged on the sliding socket (18), and the anti-falling socket (17) is connected with a cable (10);
the anti-drop socket (17) is also provided with a cable anti-pull protection device (16);
the cable (10) is connected with an inverter (22) on the agricultural machine after sequentially passing through a wire supporting and laying device and a wire winding and unwinding device which are arranged on the agricultural machine; the inverter (22) converts high-voltage alternating current into direct current, and the direct current is directly used by the agricultural machinery;
the anti-drop socket (17) comprises a locking buckle (17-1) and an anti-drop plug (17-2), the anti-drop plug (17-2) is fixedly connected with a shell (18-5) at the upper end of the sliding socket (18), and the locking buckle (17-1) locks the cable anti-pull protection device (16) and the anti-drop plug (17-2);
the sliding socket (18) further comprises a conductive copper ring (18-2), the conductive copper ring (18-2) is sleeved on the copper core (18-3), the copper core (18-3) is fixed by the copper core insulating shell (18-4) and simultaneously the conductive copper ring (18-2) is wrapped, and the conductive copper ring (18-2) slides on the copper core (18-3); the conductive copper ring (18-2) and the conductive copper sheet (18-1) are fixedly connected with the shell (18-5) at the upper end of the sliding socket, and the copper core (18-3) is connected with the conductive copper sheet (18-1) and then enters the anti-drop plug (17-2); when the conductive copper ring (18-2) slides on the copper core (18-3), the anti-falling socket (17) slides on the copper core (18-3);
the cable anti-pulling protection device (16) comprises a conductive connecting sheet (16-3), wherein the conductive connecting sheet (16-3) connects the socket copper core (16-1) and the cable copper core (16-2), and the cable insulation shell (16-4) wraps the conductive connecting sheet (16-3), the socket copper core (16-1) and the cable copper core (16-2);
the wire supporting and laying device comprises a rotary mechanism (2), wherein the rotary mechanism (2) is fixedly connected to a bottom plate (1) on the agricultural machine; the turntable (3) is connected with the slewing mechanism (2) through a turntable pin (4), and the turntable (3) can freely rotate around the axis of the turntable pin (4); the lower ends of the supporting rods (5) and the lower ends of the sleeves (6) are respectively hinged with the turntable (3) and respectively rotate around the central axis of the hinged part; the stay bar (5) is a bent bar, the cable (10) passes through the top end of the stay bar (5), when the tension on the cable (10) acts on the top end of the stay bar (5), the eccentricity exists, and the turntable (3) can freely rotate in the slewing mechanism (2); the top end of the sleeve (6) is fixed at the middle position of the stay bar (5) through a lock nut, and the length of the sleeve (6) is changed by changing the position of the lock nut on the sleeve (6);
the winding and unwinding device comprises a roller (7) and a sliding block (9), wherein the roller (7) and the sliding block (9) are fixedly connected to the stay bar (5), and the roller (7) is positioned below the sliding block (9); the horizontal smooth rod (11) and the horizontal threaded rod (14) are respectively and fixedly connected to the frame (23), a through hole in the limiting plate (12) is in sliding connection with the smooth rod (11), a threaded hole in the limiting plate (12) is in threaded connection with the threaded rod (14), the threaded rod (14) is driven to rotate by a stepping motor, and when the stepping motor drives the threaded rod (14) to rotate, the limiting plate (12) translates on the smooth rod (11) and the threaded rod (14); the rubber wheel (13) is fixedly connected to the limiting plate (12);
the winding and unwinding device also comprises a conductive slip ring (15), the conductive slip ring (15) is connected with the winding drum (20), the winding drum (20) is connected with a frame (23) fixed on the agricultural machine through a winding drum shaft, and the winding drum (20) can rotate around an axis; the winding drum (20) is driven by a torque motor to rotate; the cable (10) passes through grooves on the roller (7) and the sliding block (9), then passes through the rubber wheel (13) and finally is wound on the winding drum (20);
the conductive slip ring (15) comprises an electric brush (15-3), and an insulating nut (15-2) fixedly connects the electric brush (15-3) on a stand column of the conductive slip ring shell (15-1); holes are reserved on the conductive slip ring shell (15-1) for the cables (10) to enter; the conductive copper core (15-5) is fixedly connected with the conductive slip ring inner shell (15-4); the electric brush (15-3) is contacted with the conductive copper core (15-5) and can rotate around the conductive copper core (15-5); the inner shell (15-4) of the conductive slip ring is fixedly connected with the protruding part of the frame (23);
the cable protection device comprises a pressure sensor (8), wherein the pressure sensor (8) is fixedly connected to a supporting rod (5) and is pressed by a sliding block (9), a cable (10) sequentially passes through a roller (7) and the sliding block (9), the cable (10) is straightened and forms a fixed angle due to the supporting and acting actions of the sliding block (9), meanwhile, the pressure of the cable (10) on the sliding block (9) acts on the pressure sensor (8), the pressure sensor (8) is in communication connection with an encoder, and the encoder is in communication connection with a stepping motor and a torque motor.
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| CN202110524292.9A CN113258367B (en) | 2021-05-13 | 2021-05-13 | Patch wire type power supply device applicable to agriculture |
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| CN113955592B (en) * | 2021-11-15 | 2024-06-07 | 广东天凛高新科技有限公司 | Movable intelligent butt joint cable drum working method |
| CN113998547B (en) * | 2021-11-15 | 2024-06-07 | 广东天凛高新科技有限公司 | Mobilizable intelligent butt joint cable drum |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3792828B2 (en) * | 1997-04-04 | 2006-07-05 | キヤノン株式会社 | Cable winding device |
| CN203229273U (en) * | 2013-04-15 | 2013-10-09 | 国家电网公司 | Portable signal cable releasing cart |
| US10017352B2 (en) * | 2015-01-05 | 2018-07-10 | Robert Braack | Large diameter lay-flat hose spool apparatus and method |
| CN206318583U (en) * | 2016-12-06 | 2017-07-11 | 北京迈弛科技发展有限公司 | A kind of cable winding apparatus and excavating equipment |
| CN107572317B (en) * | 2017-09-28 | 2019-04-09 | 国网山东省电力公司潍坊供电公司 | The mechanical mobile folding and unfolding vehicle of cable reel |
| CN108946340A (en) * | 2017-12-26 | 2018-12-07 | 深圳市博铭维智能科技有限公司 | Intelligent retractable cable electric cable vehicle |
| CN208454182U (en) * | 2018-07-13 | 2019-02-01 | 河南省黄海工程机械有限公司 | A kind of Operation Van's service cable draw off gear and the Operation Van using the device |
| DE102018212150A1 (en) * | 2018-07-20 | 2020-01-23 | Deere & Company | Process for supplying energy to a wired field chopper |
| CN210982863U (en) * | 2020-01-06 | 2020-07-10 | 中铁武汉电气化局集团有限公司 | Subway cable laying trolley |
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Effective date of registration: 20231204 Address after: 310000, No. 228 Xin'an Road, Xin'anjiang Street, Jiande City, Hangzhou City, Zhejiang Province (self declared) Patentee after: State Grid Zhejiang Electric Power Co., Ltd. Jiande power supply Co. Address before: 518000 1002, Building A, Zhiyun Industrial Park, No. 13, Huaxing Road, Henglang Community, Longhua District, Shenzhen, Guangdong Province Patentee before: Shenzhen Wanzhida Technology Co.,Ltd. Effective date of registration: 20231204 Address after: 518000 1002, Building A, Zhiyun Industrial Park, No. 13, Huaxing Road, Henglang Community, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen Wanzhida Technology Co.,Ltd. Address before: 610039, No. 999, Jin Zhou road, Jinniu District, Sichuan, Chengdu Patentee before: XIHUA University |
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