CN111498395A - Reluctance type driving belt conveyor and driving control method - Google Patents
Reluctance type driving belt conveyor and driving control method Download PDFInfo
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- CN111498395A CN111498395A CN202010364069.8A CN202010364069A CN111498395A CN 111498395 A CN111498395 A CN 111498395A CN 202010364069 A CN202010364069 A CN 202010364069A CN 111498395 A CN111498395 A CN 111498395A
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- coil winding
- iron core
- conveying belt
- reluctance
- belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/18—Suction or magnetic elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
Abstract
The invention discloses a reluctance type driving belt conveyor which comprises a driving device, a conveying belt (7) and rollers (11), wherein the conveying belt (7) is wound between the rollers (11) at two ends, the conveying belt (7) is provided with at least one group of iron cores, and the iron cores are distributed at intervals along the warp direction of the conveying belt (7); the driving device comprises a power supply part and a stator which are connected with each other, the stator comprises a coil winding (5), the coil winding (5) is sleeved on the conveying belt (7), the coil winding (5) is uniformly arranged along the warp direction of the conveying belt (7), and the power supply part is used for supplying current to the coil winding (5); the iron core can drive the conveying belt (7) under the action of the coil winding (5). The invention also provides a drive control method of the reluctance type drive belt conveyor. The invention drives the conveying belt (7) by controlling the current in the coil winding (5) under stress of the iron core, thereby solving the problems of the conveying belt in the prior art such as transmission slip, difficult start and more power transmission parts.
Description
Technical Field
The invention relates to the technical field of power-driven conveyors, in particular to a reluctance-type driving belt conveyor and a driving control method.
Background
The belt conveyor is a modern conveyor with long history, economy and applicability, and gradually shows the development trend of long distance, high belt speed, large transportation volume and intellectualization in recent years.
Traditional belt conveyor, the required drive power generally passes through the friction transmission between driving pulley and the conveyer belt, "driving pulley- -conveyer belt" constitutes a friction drive mechanism, consequently mostly use aircraft nose tail drive to give first place to in long distance transport, a current magnetic suspension belt conveyor, utilize magnetic force cylinder and press from both sides magnetic force that exist between the magnetic force conveyer belt to replace frictional force and provide drive power for magnetic conveyer belt, there is repulsion force simultaneously between the magnetic sheet that magnetic force conveyer belt and magnetic force track correspond, make the conveyer belt hang on the track, the adjacent magnetic sheet that corresponds the magnetic sheet with pressing from both sides magnetic conveyer belt magnetic sheet on the magnetic force track can produce forward traction force to the conveyer belt, provide partial drive power for the operation of conveyer.
However, in the magnetic roller part of the magnetic suspension belt conveyor in the prior art, a conventional motor is still needed to provide the rotating kinetic energy for the roller, and then the kinetic energy of the roller is transmitted to the conveying belt through magnetic force, so that the problems of transmission failure such as slipping of the conveying belt, difficulty in starting and the like during overload or load starting and the problems of long power transmission chain and many power transmission components exist; in addition, the principle of using a maglev train between a magnetic clamping conveyor belt and a magnetic track requires that the current direction of the track magnetic sheets is changed continuously and very rapidly, and the prior art does not mention a specific implementation method how to change the current direction rapidly and accurately and continuously.
Disclosure of Invention
The invention provides a reluctance type driving belt conveyor which comprises a driving device, a conveying belt and rollers, wherein the conveying belt is wound between the rollers at two ends;
the conveying belt is provided with at least one group of iron cores, and the iron cores are distributed at intervals along the warp direction of the conveying belt;
the driving device comprises a power supply part and a stator which are connected with each other, the stator comprises coil windings, the coil windings are sleeved on the conveying belt and are uniformly arranged along the warp direction of the conveying belt, and the power supply part is used for supplying current to the coil windings; the iron core can drive the conveying belt under the action of the coil winding.
The reluctance type driving belt conveyor comprises coil windings sleeved on a conveying belt, iron cores are arranged on the conveying belt at intervals along the warp direction, the conveying belt is correspondingly driven by the stress of the iron cores through controlling the current in the specific coil windings, a motor is not required to be independently arranged to drive a roller to rotate and then the kinetic energy of the roller is transmitted to the conveying belt, the problems of transmission failure such as slippage of the conveying belt, difficulty in starting and the like during overload or load starting and the problems of long power transmission chain and more power transmission parts are solved, the power is not required to be transmitted through friction, the requirement on the tension of the conveying belt is reduced, the conveying belt with lower strength can be selected in practical application, the investment cost is reduced, and the service life of the conveying belt is prolonged.
Optionally, the iron core is a linear iron core, and a plurality of groups of linear iron cores are uniformly distributed in the width direction of the conveyor belt.
According to the invention, a plurality of groups of linear iron cores are uniformly distributed on the conveying belt in the width direction, and each group of linear iron cores can be driven by the driving force along the warp direction of the conveying belt, so that the belt strength of the conveying belt can be effectively improved, and the stress of the conveying belt can be more uniform; in addition, the iron core is a linear iron core arranged along the warp direction, so that the iron core and the conveying belt are more convenient and stable to fix; on the other hand, when the bearing section and the return section of the conveyer belt are arranged in a round pipe shape or a cylindrical shape, the linear iron core facilitates the curling and the unfolding of the conveyer belt.
Optionally, the conveyor belt has a plurality of non-magnetic conductive fibers, and each group of the linear iron cores is fixed to the same non-magnetic conductive fiber.
The linear iron core is fixed on the non-magnetic-conductive fiber of the conveyer belt, so that on one hand, the linear iron core is more convenient and stable to fix; on the other hand, a plurality of linear iron cores arranged along the warp direction of the conveying belt are distributed on the same non-magnetic-conductive fiber at intervals, and the non-magnetic-conductive fiber has larger magnetic resistance than the linear iron cores, so that the linear iron cores are continuously driven to move forwards to replace the non-magnetic-conductive fiber according to the principle that the iron cores move to the positions with the minimum magnetic resistance, and further the driving of the conveying belt is realized;
optionally, the stator further comprises a stator shell sleeved on the conveyor belt, a plurality of parallel annular grooves are formed in an inner cavity of the stator shell, a preset distance is formed between the annular grooves along the axial direction, the coil winding is embedded in the annular grooves, and the stator shell is made of a magnetic conductive material.
The driving device is provided with a stator shell, and the coil winding is embedded in an annular groove in the stator shell to play a role in limiting the position of the coil winding; in addition, the stator shell is made of a magnetic conductive material, so that the magnetic leakage phenomenon of the coil winding can be effectively prevented, and the output power of the driving device is improved.
Optionally, a through hole is formed in the bottom of the annular groove, and a power supply cable of the coil winding passes through the through hole and is connected with the power supply portion.
The power supply cable penetrates through the through hole at the bottom of the annular groove to connect the coil winding with the power supply part, so that the power supply part feeds or eliminates power to the specific coil winding, and then acting force acting on the linear iron core is generated to continuously drive the conveying belt, and the output power of the driving device is improved.
Optionally, the conveyor belt further comprises a controller and a position sensor, the position sensor can monitor the position of the iron core, and the controller can control the specific current of the coil winding under the condition that the position information of the iron core monitored by the position sensor is used as a condition, and the conveyor belt is driven by the action force applied to the iron core.
The position sensor receives the position information of the iron core and feeds the position information back to the controller, and the controller controls the feeding or the de-electrifying of the specific coil winding according to the received information and the pre-written program, so that the iron core always bears the acting force consistent with the moving direction of the conveying belt, and the output power of the driving device is effectively improved.
Optionally, the stator further comprises a stator shell sleeved on the conveyor belt, a plurality of parallel annular grooves are formed in an inner cavity of the stator shell, a preset distance is formed between the annular grooves along the axial direction, the coil winding is embedded in the annular grooves, and the stator shell is made of a magnetic conductive material;
and a through hole is formed in the bottom of the annular flange between every two adjacent annular grooves in the stator shell, and the position sensor is arranged at the inner end of the through hole.
The bottom of the annular flange between two adjacent annular grooves is provided with a through hole, so that the position sensor is more convenient to place; the position sensor is arranged at the inner end of the through hole, so that the position of the linear iron core in the conveying belt can be monitored conveniently; in addition, when the position sensor and the controller need to be connected through a control cable, the through hole can be used for the control cable to penetrate to connect the position sensor and the controller.
Optionally, the length of the linear iron core along the warp direction is substantially equal to the distance between two adjacent position sensors, and the distance between two adjacent linear iron cores along the warp direction is greater than the distance between two adjacent position sensors.
The length of the linear iron core along the warp direction is approximately equal to the distance between two adjacent position sensors, when the position sensors on the two sides of the coil winding simultaneously monitor the position information of the linear iron core, the central point of the linear iron core along the warp direction can be judged to be opposite to the dead point of the coil winding, the current of the coil winding is controlled at the moment, the current in the coil winding is rapidly attenuated, the acting force opposite to the moving direction of the conveying belt is prevented from being generated on the linear iron core, and the output power of the driving device is improved; the distance between two adjacent linear iron cores along the warp direction is greater than the distance between two adjacent position sensors, when the position sensor on one side of the coil winding detects the linear iron core, and the position sensor on the other side does not detect the linear iron core, the front end and the rear end of the linear iron core are judged, and the power supply part is controlled to feed the coil winding at the front end of the linear iron core, so that acting force which acts on the linear iron core and is consistent with the motion direction of the conveyor belt is generated, and the conveyor belt is driven to move.
Alternatively, the power supply portion may include a direct current power supply, a diode, and a negative voltage source, and the controller may control a specific coil winding to be connected in series with any one of the direct current power supply, the diode, and the negative voltage source.
The power supply part comprises a direct current power supply, a diode and a negative voltage source, and the controller controls any one of the direct current power supply, the diode and the negative voltage source to be connected with the coil winding according to the received position information of the linear iron core and a pre-written program, so that the linear iron core can always bear acting force consistent with the movement direction of the conveying belt, and the output power of the driving device is improved.
Optionally, the stator housing, the coil winding, and the carrier segment and the return segment of the conveyor belt are all cylindrical or tubular in structure, and the stator housing and the coil winding are all coaxial with the carrier segment or the return segment of the conveyor belt.
The bearing section and the return section of the conveying belt are arranged in a circular tube shape or a cylindrical shape, so that materials are wrapped and transported, and the sealing and environmental protection performance is good; on the other hand, the stator shell and the coil winding are coaxial with the conveying belt of the bearing section or the return section, each linear iron core in the conveying belt can be subjected to the action force with a uniform magnetic field due to the arrangement, the direction of the action force is consistent with the movement direction of the conveying belt, and the occurrence of local high tension of the conveying belt is avoided.
The invention also provides a drive control method of the reluctance-type drive belt conveyor, which is based on the reluctance-type drive circular-tube belt conveyor and comprises the following steps: feeding power to a coil winding when the front end of the iron core approaches the coil winding under the condition of position information of the iron core arranged on the conveyor belt; and when the iron core moves to the position that the center of the iron core along the direction of the longitude line is opposite to the dead point of the coil winding, eliminating the current in the coil winding.
When the front end of the iron core is close to a certain coil winding, feeding electricity to the coil winding; when the iron core moves to the position that the center of the iron core along the warp direction is opposite to the dead point of the coil winding, the current in the corresponding coil winding is eliminated, so that the iron core can always bear the acting force which is consistent with the moving direction of the conveying belt, and the output power of the driving device is improved.
Alternatively, when the current in the coil winding reaches a maximum value and the center of the core in the warp direction has not moved to be opposed to the dead center of the coil winding, the feeding of the coil winding is stopped so that the current in the coil winding continues to flow in the same direction in the closed loop.
When the current in the coil winding reaches the maximum value, the coil winding is stopped from being fed, so that the phenomenon that the feeding is directly converted into the electricity elimination when the center of the iron core moves to the dead point of the coil winding is avoided, the reverse voltage which rises quickly is prevented from appearing on the coil winding, and the stability of the circuit is ensured.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a reluctance-drive belt conveyor according to the present invention;
FIG. 2 is a partial cross-sectional view of the spread of the conveyor belt in the reluctance-drive belt conveyor of FIG. 1;
FIG. 3 is a radial cross-sectional view of the carrier section of the belt of the reluctance-drive belt conveyor of FIG. 1 when rolled into a cylindrical shape;
FIG. 4 is a radial cross-sectional view of the assembly of the stator and the tubular conveyor belt of the carrier section at the location of the annular groove in the reluctance-drive belt conveyor of FIG. 1;
FIG. 5 is a radial cross-sectional view of the assembled mounting of the stator and the tubular conveyor belt of the carrier section at the location of the annular flange in the reluctance-drive belt conveyor of FIG. 1;
FIG. 6 is a cross-sectional view of the assembled mounting of the stator and the tubular conveyor belt of the carrier section of the reluctance-drive belt conveyor of FIG. 1;
fig. 7 is a circuit diagram of a power supply portion in the reluctance-drive belt conveyor of fig. 1;
FIG. 8 is an enlarged partial cross-sectional view of the assembled stator and tubular conveyor belt of FIG. 6;
FIG. 9 is a graph of the relationship between reluctance and the position of the center point of the wire core relative to the dead center of the coil winding for the wire core of FIG. 8 during movement;
FIG. 10 is a diagram showing the relationship between the acting force applied to the linear iron core during the movement and the position of the center point of the linear iron core relative to the dead center of the coil winding in FIG. 8;
fig. 11 is a flow chart of the drive control of the drive arrangement in the reluctance-drive belt conveyor of fig. 1 with the conveyor belt in the position of fig. 6;
wherein the reference numerals in fig. 1 to 11 are explained as follows:
1-a direct current power supply; 2-a negative voltage source; 3-a controller; 4-a stator housing; 5-a coil winding; 6-position sensor; 7-a conveyor belt; 8-a linear iron core; 9-non-magnetic conductive fibers; 10-forming carrier roller group; 11-a roller; 12-a diode; 13-supply cables; 14-a control cable; 15-a first switch; 16-a second switch; 51-a first coil winding; 52-second coil winding; 53-third coil winding; 54-a fourth coil winding; 55-a fifth coil winding; 61-a first position sensor; 62-a second position sensor; 63-a third position sensor; 64-a fourth position sensor; 65-fifth position sensor.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Herein, the center point of the coil winding 5 in the axial direction is the "dead point" of the coil winding 5; the direction of movement along the conveyor belt 7 is the "warp direction"; the direction indicated by the arrows in fig. 1 and 6 corresponds to the moving direction of the conveyor belt 7, and the direction corresponding to the moving direction of the conveyor belt 7 is "forward" and the direction opposite to the moving direction of the conveyor belt 7 is "backward".
Referring to fig. 1 to 5, a schematic structural view of a conveyor belt 7 and a driving device in a reluctance-drive belt conveyor according to the present invention is shown, and fig. 1 is a schematic structural view of an embodiment of a reluctance-drive belt conveyor according to the present invention; fig. 2 is a partial cross-sectional view of the spread of the conveyor belt 7 in the reluctance-drive belt conveyor of fig. 1; fig. 3 is a radial cross-sectional view of the carrier or return segment of the belt 7 of the reluctance-drive belt conveyor of fig. 1 rolled into a round tube shape; fig. 4 is a radial cross-sectional view of the assembly of the stator and the tubular conveyor belt 7 of the carrier section at the position of the annular groove in the reluctance-drive belt conveyor of fig. 1; fig. 5 is a radial cross-sectional view of the assembly of the stator with the tubular conveyor belt 7 of the carrier section at the location of the annular flange in the reluctance-drive belt conveyor of fig. 1.
The invention provides a reluctance type driving belt conveyor, which comprises a driving device, a conveying belt 7 and rollers 11, wherein the conveying belt 7 is wound between the rollers 11 at two ends, and the rollers 11 are used for changing the transmission direction of the conveying belt 7; the conveying belt 7 is provided with at least one group of iron cores, and the iron cores are distributed at intervals along the warp direction of the conveying belt 7; the driving device comprises a power supply part and a stator which are connected with each other, the stator comprises a coil winding 5, the coil winding 5 is sleeved on the conveying belt 7, the coil winding 5 is uniformly distributed along the warp direction of the conveying belt 7, and the power supply part is connected with the coil winding 5 and used for supplying current to the coil winding 5; the iron core is able to drive the conveyor belt 7 under the influence of the coil windings 5.
The reluctance type driving belt conveyor correspondingly drives the iron core arranged on the conveying belt 7 to be acted by the acting force along the warp direction of the conveying belt 7 by controlling the current in the specific coil winding 5, does not need to separately arrange a motor to drive the roller 11 to rotate like the prior art, and then transmits the kinetic energy of the roller 11 to the conveying belt 7, solves the problems of transmission failure such as slippage, difficult starting and the like of the conveying belt 7 during overload or load starting, and the problems of long power transmission chain and more power transmission parts, does not need to transmit the power through friction force, reduces the requirement on the tension of the conveying belt 7, ensures that the conveying belt 7 with lower strength can be selected in practical application, reduces the investment cost, and prolongs the service life of the conveying belt 7.
In the reluctance-type drive belt conveyor of the present invention, the conveyor belt 7 may be a flat belt, or may be provided in a tubular or cylindrical shape in the carrying section and the return section, as long as the shape of the drive device is adjusted according to the shape of the conveyor belt 7.
Referring to fig. 2 and fig. 3, in the present embodiment, a plurality of non-magnetic-conductive fibers 9 are disposed inside the conveyor belt 7 along the warp direction, the iron cores are linear iron cores 8, each group of linear iron cores 8 is fixed on the same non-magnetic-conductive fiber 9, and a plurality of groups of linear iron cores 8 are uniformly distributed inside the conveyor belt 7 in the width direction of the conveyor belt 7.
In the embodiment, a plurality of groups of linear iron cores 8 are uniformly distributed in the conveying belt 7 in the width direction, each group of linear iron cores 8 can be driven by the coil winding 5, and the driving force points to the warp direction of the conveying belt 7, so that the conveying capacity of the conveying belt 7 can be effectively improved, the conveying belt 7 can be stressed more uniformly, the generation of local high tension is avoided, and the service life of the conveying belt 7 is prolonged; in addition, the same group of linear iron cores 8 are fixed on the same non-magnetic conductive fiber 9 at intervals, and the non-magnetic conductive fiber 9 has larger magnetic resistance than the linear iron cores 8, so that the linear iron cores 8 are continuously driven to move forwards to replace the non-magnetic conductive fiber 9 according to the principle that the iron cores move to the positions with the minimum magnetic resistance, and further the driving of the conveyer belt 7 is realized.
The iron core of this embodiment is a linear iron core 8, on one hand, the linear iron core 8 and the conveyor belt 7 are more convenient and stable to fix, and only the linear iron core 8 and the non-magnetic conductive fiber 9 in the conveyor belt 7 need to be woven together; on the other hand, when the carrier section and the return section of the conveyor belt 7 are provided in a tubular or cylindrical shape, the linear iron core 8 facilitates both the winding and unwinding of the conveyor belt 7. In practical application, the iron cores arranged inside the conveying belt 7 can also be of an integrated sheet structure, namely, a plurality of sheet iron cores are arranged inside the conveying belt 7 at intervals along the warp direction, the width of each sheet iron core is approximately equal to that of the conveying belt 7, and each sheet iron core has a preset length along the warp direction of the conveying belt 7, so that the arrangement is favorable for improving the output power of the driving device; of course, when the conveyor is a circular tube belt conveyor, it should be ensured that the flexibility of the sheet-like iron core is great enough to reduce the difficulty of the conveyor belt 7 rolling into a circular tube shape in the carrying section and the return section and unrolling into a flat belt in the section near the roller 11.
In addition, in the embodiment, the linear iron core 8 is arranged inside the conveying belt 7 and is woven with the non-magnetic fibers 9, and in practical application, it is also possible to fix the linear iron core 8 on the surface of the conveying belt 7.
Referring to fig. 1, the reluctance type driving belt conveyor of this embodiment is a circular tube belt conveyor, the carrier section and the return section of the conveyor belt 7 are fixed to be circular tube or cylindrical by the forming carrier roller group 10, the coil winding 5 in the driving device is a series of solenoid coils, the stator in the driving device further includes a stator housing 4 sleeved on the conveyor belt 7, the stator housing 4 is cylindrical, a plurality of parallel annular grooves are disposed in an inner cavity of the stator housing 4, an annular flange is formed between two adjacent annular grooves, a predetermined distance is formed between two adjacent annular grooves along the axial direction, the coil winding 5 is embedded inside the annular grooves, a through hole is disposed at the bottom of each annular groove, the power supply cable 13 of the coil winding 5 passes through the through hole to be connected with a power supply part, the power supply part is used for feeding power to a specific coil winding 5 or eliminating current in the specific coil winding 5, the stator shell 4 and the coil winding 5 are both sleeved on the bearing section of the conveying belt 7, and the material of the stator shell 4 is made of a magnetic conductive material.
The driving device is provided with a stator shell 4 sleeved on the conveying belt 7, the coil winding 5 is embedded in an annular groove in the stator shell 4, the function of limiting the position of the coil winding 5 is achieved, the coil winding 5 can be uniformly sleeved on the conveying belt 7 all the time, and the conveying belt 7 can be driven by stable driving force; in addition, the stator shell 4 is made of a magnetic conductive material, so that the phenomenon of magnetic leakage of the coil winding 5 can be effectively prevented, and the output power of the driving device is improved; the material of the stator housing 4 may be silicon steel.
In the embodiment, the stator housing 4 and the coil winding 5 are sleeved on the bearing section of the conveyer belt 7, and in practical application, the stator housing 4 and the coil winding 5 can be arranged on the bearing section of the conveyer belt 7 and can also be arranged on the return section of the conveyer belt 7, so that the conveyer belt 7 can convey materials on the bearing section and can also convey materials on the return section in a reverse direction, and the problem of bidirectional material conveying of the conveyer belt 7 is solved; in addition, the driving device of the invention can be used independently, and can be freely arranged at any position of the carrying section and the return section of the conveyer belt 7 in a plurality of sets of combinations, so that the conveyer belt 7 can obtain enough power during the long-distance material transportation process.
Further, the bearing section and the return section of the stator housing 4, the coil winding 5 and the conveyor belt 7 are all cylindrical or tubular, when the stator housing 4 and the coil winding 5 are sleeved on the bearing section or the return section of the conveyor belt 7, the gap between the stator housing 4, the coil winding 5 and the conveyor belt 7 should be as small as possible under the condition that the normal movement of the conveyor belt 7 is not affected, and the bearing section or the return section of the stator housing 4, the coil winding 5 and the conveyor belt 7 should be coaxial.
With continuing reference to fig. 1, the present embodiment further includes a controller 3 and a position sensor 6, a through hole is formed in the bottom of the annular flange between two adjacent annular grooves in the inner cavity of the stator housing 4 from inside to outside, the position sensor 6 is disposed at the inner end of the through hole for monitoring the position of the linear iron core 8 inside the conveyor belt 7, and when the position sensor 6 and the controller 3 need to be connected through a control cable 14, the control cable 14 can pass through the through hole to connect the position sensor 6 and the controller 3; the position sensor 6 sends the monitored position information of the linear iron core 8 to the controller 3, the controller 3 sends a series of time sequence control instructions according to the received position information of the linear iron core 8 and a pre-written program, a power supply part is controlled to feed power to the specific coil winding 5 or eliminate current in the specific coil winding 5, and then the linear iron core 8 is continuously driven by acting force which is consistent with the motion direction of the conveyer belt 7 to drive the conveyer belt 7, and the output power of the driving device is improved.
Referring to fig. 6 to 11, the driving control principle of the driving device of the reluctance-type drive belt conveyor of the present invention will be understood, and fig. 6 is a sectional view of the assembly of the stator and the tubular conveyor belt 7 of the carrying section in the reluctance-type drive belt conveyor of fig. 1; fig. 7 is a circuit diagram of a power supply portion in the reluctance-drive belt conveyor of fig. 1; fig. 8 is an enlarged partial cross-sectional view of the assembled stator and circular tubular conveyor belt 7 of fig. 6; fig. 9 is a graph of the relationship between the magnetic resistance and the position of the center point of the wire core 8 relative to the dead center of the coil winding 5 during the movement of the wire core 8 in fig. 8; fig. 10 is a diagram showing the relationship between the acting force applied to the linear iron core 8 during the movement and the dead center position of the central point of the linear iron core 8 relative to the coil winding 5 in fig. 8; fig. 11 is a flowchart of the drive control of the drive device in the magnetoresistive-drive belt conveyor of fig. 1 with the conveyor belt 7 in the position of fig. 6.
Fig. 9 and 10 are understood from fig. 8, in which the abscissa x in fig. 9 is the position of the center point of the linear iron core 8 relative to the dead point of the coil winding 5, the ordinate y is the magnetic resistance of the magnetic circuit of the coil winding 5, in fig. 10, the abscissa x is the position of the center point of the linear iron core 8 relative to the dead point of the coil winding 5, and the ordinate y is the acting force applied to the linear iron core 8.
The principle of the driving device of the invention for driving the conveyer belt 7 to move is as follows:
according to the principle of minimum magnetic resistance, the magnetic flux always tends to pass through the path of minimum magnetic resistance, and since the linear iron core 8 has a much higher magnetic permeability than the non-magnetic conductive fibers 9, when the linear iron core 8 is inside the energized coil winding 5, the linear iron core 8 is moved in the direction of minimum magnetic resistance by the force of the magnetic field in the magnetic path formed by the linear iron core 8 and the non-magnetic conductive fibers 9. Meanwhile, when the axial central point of the linear iron core 8 gradually approaches the dead point of the coil winding 5, the magnetic resistance of the magnetic circuit gradually becomes smaller, and the acting force generated on the linear iron core 8 is increased and then reduced; when the central point of the linear iron core 8 continuously moves to be opposite to the dead point of the coil winding 5, the magnetic resistance of the magnetic circuit is minimum, and the acting force on the linear iron core 8 is also minimum; when the linear iron core 8 continues to move and the central point of the linear iron core 8 moves away from the dead point of the coil winding 5, the magnetic resistance of the magnetic circuit gradually increases, and the linear iron core 8 starts to be acted by the reverse force, so according to the relation diagram, measures are taken to prevent the linear iron core 8 from continuing to move and being acted by the reverse force after the central point of the linear iron core 8 reaches the dead point of the coil winding 5.
Referring to fig. 6 and 7, the power supply unit of the present embodiment includes a dc power supply 1, a negative voltage source 2, a diode 12, a first switch 15, and a second switch 16, and the controller 3 can control the on/off of the first switch 15 and the second switch 16 in the power supply unit according to the received position information of the linear iron core 8 and a pre-written program, and further control the coil winding 5 to be connected to any one of the dc power supply 1, the negative voltage source 2, and the diode 12. Specifically, taking the linear iron core 8 moving to the position shown in fig. 6 as an example, the first position sensor 61, the second position sensor 62, the fourth position sensor 64, and the fifth position sensor 65 all monitor the position of the linear iron core 8, and the third position sensor 63 does not monitor the position of the linear iron core 8, so that the controller 3 can determine that the position of the linear iron core 8 corresponding to the second position sensor 62 is the front end of the linear iron core 8, and the position of the linear iron core 8 corresponding to the first position sensor 61 is the rear end of the linear iron core 8; similarly, the position of the linear iron core 8 corresponding to the fifth position sensor 65 is the front end of the linear iron core 8, and the position of the linear iron core 8 corresponding to the fourth position sensor 64 is the rear end of the linear iron core 8, so that to realize the movement of the linear iron core 8 along the direction indicated by the arrow in fig. 6, it is necessary to feed the second coil winding 52 and the fifth coil winding 55, so that the second coil winding 52 and the fifth coil winding 55 respectively generate acting force along the movement direction of the conveyor belt 7 on the corresponding linear iron core 8, at this time, the controller 3 sends an instruction to control the first switch 15 in the corresponding loop to be closed, the corresponding second coil winding 52 and fifth coil winding 55 are both connected to the dc power supply 1, the second coil winding 52 and the fifth coil winding 55 are fed, when the currents in the second coil winding 52 and the fifth coil winding 55 reach the maximum value, opening the first switch 15 and rapidly closing the second switch 16 so that the current in the second coil winding 52 and the fifth coil winding 55 continues to flow in the same direction through the diode 12;
meanwhile, since the first position sensor 61 and the second position sensor 62 simultaneously monitor the position of the linear iron core 8, it can be determined that the center point of the linear iron core 8 is opposite to the dead point of the first coil winding 51, and in order to avoid that the first coil winding 51 generates an acting force on the linear iron core 8 in a direction opposite to the moving direction of the conveyor belt 7 when the linear iron core 8 continues to move, the current in the first coil winding 51 needs to be reduced, similarly, the fourth position sensor 64 and the fifth position sensor 65 simultaneously monitor the position of the linear iron core 8, and in order to avoid that the fourth coil winding 54 generates an acting force on the linear iron core 8 in a direction opposite to the moving direction of the conveyor belt 7, the current in the fourth coil winding 54 also needs to be reduced, at this time, the controller 3 gives an instruction to close the second switch 16 of the corresponding loop, and controls the first coil winding 51 and the fourth coil winding 54 to be connected to the negative voltage source 2, the current in the first coil winding 51 and the fourth coil winding 54 is rapidly attenuated to zero, thus ensuring that the linear iron core 8 is always only acted by the acting force in the same direction as the moving direction of the conveyor belt 7 and improving the output power of the driving device.
The position sensor 6 can monitor the position of the linear iron core 8 in real time, and when the position of the linear iron core 8 is changed, the position sensor 6 sends a new position signal to the controller 3, and the steps are repeated continuously to improve the output power of the driving device; in addition, the voltage of the direct current power supply 1 can be adjusted, so that the intensity of the magnetic field is changed, the adjustment of the driving force is realized, the running speed and the running quantity of the conveying belt 7 can be adjusted according to the actual transportation condition, and the working efficiency and the application range of the reluctance type driving belt conveyor are improved.
In the present embodiment, the position information of the linear core 8 is simultaneously monitored by the first position sensor 61 and the second position sensor 62 to judge that the center of the corresponding linear core 8 is opposite to the dead point of the first coil winding 51, and therefore, the length of the linear core 8 in the warp direction should be substantially equal to the distance between the adjacent two position sensors 6; according to the fact that the first position sensor 61 and the second position sensor 62 monitor the position information of the linear iron core 8, and the third position sensor 63 does not monitor the position information of the linear iron core 8, it is determined that the position of the linear iron core 8 corresponding to the second position sensor 62 is the front end of the linear iron core 8, and therefore, the distance between two adjacent linear iron cores 8 in the warp direction should be at least larger than the distance between two adjacent position sensors 6.
In addition, the diode 12 is arranged in the power supply part of the embodiment, when the current in the coil winding 5 reaches the maximum value, the coil winding 5 is firstly connected with the diode 12 in series, and when the coil winding 5 needs to be de-energized, the coil winding 5 is connected with the negative voltage source 2 in series, so that the coil winding 5 is prevented from being immediately and rapidly connected with the negative voltage source 2 when being disconnected with the direct current power supply 1, the reverse voltage which rapidly rises is effectively prevented from appearing on the coil winding 5, and the stability of the circuit is ensured.
The invention also provides a drive control method of the reluctance-type drive belt conveyor, which is based on the reluctance-type drive belt conveyor and comprises the following steps: feeding power to the coil winding 5 when the front end of the iron core approaches the coil winding 5 on the condition that the position information of the iron core provided to the conveyor belt 7 is used; when the current in the coil winding 5 reaches the maximum value and the center of the iron core along the warp direction does not move to be opposite to the dead point of the coil winding 5, stopping feeding the coil winding 5, and enabling the current in the coil winding 5 to continuously flow in the same direction in a closed loop; when the core moves to such a position that the center of the core in the warp direction is opposite to the dead point of the coil winding 5, the current in the corresponding coil winding 5 is eliminated.
The reluctance type driving belt conveyor and the driving control method provided by the invention are described in detail above, and the principle and the implementation mode of the invention are explained in the present document by applying specific examples, and the description of the above examples is only used for helping to understand the method and the core idea of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (12)
1. A reluctance-type drive belt conveyor, comprising a drive device, a conveyor belt (7) and rollers (11), the conveyor belt (7) being wound between the rollers (11) at both ends, characterized in that:
the conveying belt (7) is provided with at least one group of iron cores, and the iron cores are distributed at intervals along the warp direction of the conveying belt (7);
the driving device comprises a power supply part and a stator which are connected with each other, the stator comprises a coil winding (5), the coil winding (5) is sleeved on the conveying belt (7), the coil winding (5) is uniformly arranged along the warp direction of the conveying belt (7), and the power supply part is used for supplying current to the coil winding (5); the iron core can drive the conveying belt (7) under the action of the coil winding (5).
2. A reluctance-drive belt conveyor according to claim 1, wherein: the iron core is a linear iron core (8), and a plurality of groups of linear iron cores (8) are uniformly distributed in the width direction of the conveying belt (7).
3. A reluctance-drive belt conveyor according to claim 2, wherein: the conveying belt (7) is provided with a plurality of non-magnetic-conductive fibers (9), and each group of linear iron cores (8) is fixed on the same non-magnetic-conductive fibers (9).
4. A reluctance-drive belt conveyor according to claim 1, wherein: the stator further comprises a stator shell (4) sleeved on the conveying belt (7), a plurality of parallel annular grooves are formed in the inner cavity of the stator shell (4), a preset distance is reserved between the annular grooves along the axial direction, the coil windings (5) are embedded in the annular grooves, and the stator shell (4) is made of magnetic conductive materials.
5. A reluctance-drive belt conveyor according to claim 4, wherein: the bottom of the annular groove is provided with a through hole, and a power supply cable (13) of the coil winding (5) penetrates through the through hole to be connected with the power supply part.
6. A reluctance-drive belt conveyor according to any one of claims 1-5, wherein: still include controller (3) and position sensor (6), position sensor (6) can monitor the position of iron core, controller (3) can with position sensor (6) are monitored the positional information of iron core is the condition, and the control is specific the electric current size of coil winding (5) corresponds the iron core receives the effort drive conveyer belt (7).
7. A reluctance-drive belt conveyor according to claim 6, wherein: the stator further comprises a stator shell (4) sleeved on the conveying belt (7), a plurality of parallel annular grooves are formed in the inner cavity of the stator shell (4), a preset distance is reserved between the annular grooves along the axial direction, the coil winding (5) is embedded in the annular grooves, and the stator shell (4) is made of a magnetic conductive material;
and a through hole is formed in the bottom of the annular flange between every two adjacent annular grooves in the stator shell (4), and the position sensor (6) is arranged at the inner end of the through hole.
8. A reluctance-drive belt conveyor according to claim 7, wherein: the length of the linear iron core (8) along the warp direction is approximately equal to the distance between two adjacent position sensors (6), and the distance between two adjacent linear iron cores (8) along the warp direction is greater than the distance between two adjacent position sensors (6).
9. A reluctance-drive belt conveyor according to claim 6, wherein: the power supply unit includes a direct current power supply (1), a diode (12), and a negative voltage source (2), and the controller (3) can control the specific coil winding (5) to be connected in series with any one of the direct current power supply (1), the diode (12), and the negative voltage source (2).
10. A reluctance-drive belt conveyor according to claim 4, wherein: the structure of the stator shell (4), the coil winding (5) and the bearing section and the return section of the conveying belt (7) are cylindrical or tubular, and the stator shell (4) and the coil winding (5) are coaxial with the bearing section or the return section of the conveying belt (7).
11. A drive control method of a reluctance-drive belt conveyor based on any one of claims 1 to 10, characterized in that: the drive control method includes:
feeding power to a coil winding (5) when a leading end of the iron core approaches the coil winding (5) on the condition that position information of the iron core provided to the conveyor belt (7) is used as a condition; when the iron core moves to the position that the center of the iron core along the direction of the longitude line is opposite to the dead point of the coil winding (5), the current in the coil winding (5) is eliminated.
12. The drive control method of a reluctance-drive belt conveyor according to claim 11, characterized in that: when the current in the coil winding (5) reaches the maximum value and the center of the iron core in the warp direction has not moved to be opposite to the dead point of the coil winding (5), the feeding of the coil winding (5) is stopped, so that the current in the coil winding (5) continues to flow in the same direction in the closed loop.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62167826A (en) * | 1986-01-20 | 1987-07-24 | Mitsubishi Heavy Ind Ltd | Traveling direction changer for metallic belt-like body |
| JP2009190813A (en) * | 2008-02-12 | 2009-08-27 | Honda Motor Co Ltd | Belt device |
| US20100230245A1 (en) * | 2009-03-16 | 2010-09-16 | Laitram, L.L.C. | Conveyor belt apparatus and method including magnetically actuated rollers |
| CN104760798A (en) * | 2015-01-29 | 2015-07-08 | 中煤张家口煤矿机械有限责任公司 | Magnetically driven deviation self-adjustment belt type conveyer |
| CN107306067A (en) * | 2016-04-22 | 2017-10-31 | 西门子公司 | The stator component of transportation system based on linear motor and transportation system |
| CN109516085A (en) * | 2018-12-12 | 2019-03-26 | 福建龙净环保股份有限公司 | A kind of electromagnetic drive type belt conveyor |
| CN110300710A (en) * | 2017-02-14 | 2019-10-01 | Sig技术股份公司 | Packing machine and the method for running packing machine |
-
2020
- 2020-04-30 CN CN202010364069.8A patent/CN111498395A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62167826A (en) * | 1986-01-20 | 1987-07-24 | Mitsubishi Heavy Ind Ltd | Traveling direction changer for metallic belt-like body |
| JP2009190813A (en) * | 2008-02-12 | 2009-08-27 | Honda Motor Co Ltd | Belt device |
| US20100230245A1 (en) * | 2009-03-16 | 2010-09-16 | Laitram, L.L.C. | Conveyor belt apparatus and method including magnetically actuated rollers |
| CN104760798A (en) * | 2015-01-29 | 2015-07-08 | 中煤张家口煤矿机械有限责任公司 | Magnetically driven deviation self-adjustment belt type conveyer |
| CN107306067A (en) * | 2016-04-22 | 2017-10-31 | 西门子公司 | The stator component of transportation system based on linear motor and transportation system |
| CN110300710A (en) * | 2017-02-14 | 2019-10-01 | Sig技术股份公司 | Packing machine and the method for running packing machine |
| CN109516085A (en) * | 2018-12-12 | 2019-03-26 | 福建龙净环保股份有限公司 | A kind of electromagnetic drive type belt conveyor |
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