CN114104857B - Intelligent cable tensioning device - Google Patents
Intelligent cable tensioning device Download PDFInfo
- Publication number
- CN114104857B CN114104857B CN202210078175.9A CN202210078175A CN114104857B CN 114104857 B CN114104857 B CN 114104857B CN 202210078175 A CN202210078175 A CN 202210078175A CN 114104857 B CN114104857 B CN 114104857B
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- disc
- magnetic
- driving
- sleeve
- driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/40—Applications of tension indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/40—Arrangements for rotating packages
- B65H54/54—Arrangements for supporting cores or formers at winding stations; Securing cores or formers to driving members
- B65H54/553—Both-ends supporting arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/385—Regulating winding speed
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- 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
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- Tension Adjustment In Filamentary Materials (AREA)
Abstract
The invention is suitable for the field of reels, and provides an intelligent cable tensioning device, which comprises a detection component and an adjustable reel; the adjustable reel comprises reel brackets positioned on two sides; a bobbin rotatably mounted between the two reel brackets; the braking mechanism bracket is fixedly arranged on the wire wheel bracket; the magnetic braking mechanism is arranged on the braking mechanism bracket and comprises a driven disc, a transition disc and a driving disc; a plurality of large magnetic blocks are annularly arranged on the disc surface of the driving disc; a plurality of magnetic conduction pieces are annularly arranged on the disc surface of the transition disc; a plurality of small magnetic blocks are annularly arranged on the disc surface of the driven disc; the rotating motor is fixedly arranged on the wire wheel bracket, and one end of the driving disk is arranged at the output end of the rotating motor; the driven disc is connected with the winding drum, so that the magnetic brake device can brake the winding drum by using magnetic force instead of traditional friction force, solves the problem of abrasion and realizes intelligent control of the winding drum.
Description
Technical Field
The invention relates to the field of reels, in particular to an intelligent cable tensioning device.
Background
The cable can be usually rolled up and down after being processed, so that the cable is convenient to transport and use.
Traditional unwinding device often can appear a serious problem in unreeling the in-process, unreel tension undersize promptly, lead to the cable to be in lax state, probably cause coiling mechanism (another equipment) the easy off tracking of cable when the rolling, still probably cause simultaneously to draw roller phenomenon to damage the roller, influence the quality of cable to a certain extent.
Most of the tensioning devices in the prior art generally perform braking through friction force, for example, the application number is CN202110381000.0, which is named as an unwinding auxiliary device for preventing a cable from deviating due to too small unwinding tension of the cable, and the patent discloses that a brake pad is driven to open by a motor, so that the brake pad is tightly pressed and attached to an inner wall of a roller, and a braking effect is generated on the roller, thereby tensioning the cable. However, although the effect of braking by the brake pad is remarkable, the brake pad is worn seriously after long-term use, and needs to be replaced regularly. Furthermore, the brake pads are worn and the inner wall of the roller is also worn, so that the roller is difficult to replace.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide an intelligent cable tensioner, which can brake a winding drum by using magnetic force instead of conventional friction force, solve the problem of abrasion, and perform intelligent control on the winding drum.
In order to achieve the aim, the invention provides an intelligent cable tensioning device, which comprises a detection component for detecting the tension of a cable and an adjustable reel controlled by the detection component in a communication way; the adjustable reel comprises reel brackets positioned on two sides; the wire winding drum is rotatably sleeved between the two wire wheel brackets and is wound with a wire cable; the braking mechanism bracket is positioned in the winding reel and fixedly arranged on the wire wheel bracket; the magnetic braking mechanism comprises a driven disc, a transition disc and a driving disc which are coaxially connected in sequence from left to right; the driven disc and the driving disc are arranged symmetrically left and right relative to the transition disc; a plurality of large magnetic blocks are annularly arranged on the disc surface of the driving disc; the magnetic poles of two adjacent big magnetic blocks are opposite; a plurality of magnetic conduction pieces are annularly arranged on the disc surface of the transition disc; a plurality of small magnetic blocks are annularly arranged on the disc surface of the driven disc; the magnetic poles of the two adjacent small magnetic blocks are opposite; the rotating motor is fixedly arranged on the wire wheel bracket, and one end of the driving disc is arranged at the output end of the rotating motor; the driven disc is connected with the winding reel.
According to the intelligent cable tensioning device, the detection component comprises a shell with a cylindrical structure and a pressure sensor arranged at the lower end position of the inner wall of the shell.
According to the intelligent cable tensioning device, a power disc starting assembly is further arranged among the driven disc, the transition disc and the driving disc; the power disc starting assembly comprises a cylinder body arranged in the middle of the transition disc, the cylinder body comprises an inner cavity and an outer cavity, the inner cavity is communicated with the outer cavity at one end of the cylinder body, and fluid is contained in the cylinder body; the piston rod is arranged at one end of the driving disc, and the outer wall of the rod part of the piston rod is provided with threads; the piston rod is in threaded connection with the cylinder body and extends into the inner cavity; the piston cylinder is arranged at one end of the driven disc, a pressure receiving plate is arranged at one end of the piston cylinder, which is far away from the driven disc, the pressure receiving plate consists of an inner ring part positioned in the piston cylinder and an outer ring part positioned at the periphery of the piston cylinder, and a plurality of through holes are arranged at the positions, which are close to the upper pressure receiving plate, on the cylinder wall of the piston cylinder; the piston cylinder penetrates through the cylinder body, and the pressure receiving plate is slidably mounted in the outer cavity; a switching piece is arranged at a connecting port of the piston rod on the cylinder body; the switching piece comprises a supporting outer sleeve and a rotating inner sleeve which can only rotate in the circumferential direction in the supporting outer sleeve, the supporting outer sleeve is fixedly connected with the piston rod, an internal thread matched with the piston rod is arranged on the inner wall of the rotating inner sleeve, a magnetic switch is arranged on the supporting outer sleeve, and the supporting outer sleeve and the rotating inner sleeve can be switched between a rotating state and a locking state under the action of the magnetic switch.
According to the intelligent cable tensioning device, the magnetic switch comprises a clamping groove arranged on the outer wall of the rotating inner sleeve, a magnetic column accommodating groove arranged on the outer wall of the supporting outer sleeve, a magnetic column movably arranged in the magnetic column accommodating groove, an electromagnetic coil arranged on the outer wall of the supporting outer sleeve and positioned above the magnetic column, and a driver connected with the electromagnetic coil; the depth of the clamping groove is smaller than the height of the magnetic column.
According to the intelligent cable tensioning device, the driver comprises a power supply and a control module; one end of the control module is connected with the power supply, and the other end of the control module is connected with the electromagnetic coil.
According to the intelligent cable tensioning device, the rotating motor is connected with the driving disc through the sleeve assembly; the sleeve component comprises a driving inner sleeve arranged on one side of the driving disc and a driving outer sleeve fixedly arranged on the output end of the rotating motor, and the driving inner sleeve and the driving outer sleeve can only be sleeved in an axial movement mode.
According to the intelligent cable tensioning device, the driven disc is connected with the winding drum through the rotating assembly; the rotating assembly comprises a connecting sleeve arranged in the bobbin, the connecting sleeve is sleeved with the driven disc, a positioning block is arranged on the inner wall of the connecting sleeve, and the positioning block is embedded in the outer wall of the driven disc.
The invention provides an intelligent cable tensioning device, which comprises a detection component for detecting the tension of a cable and an adjustable reel controlled by the detection component in a communication way; the adjustable reel comprises reel brackets positioned on two sides; the winding reel is rotatably arranged between the two wire wheel brackets and is wound with a wire cable; the braking mechanism bracket is positioned in the winding reel and fixedly arranged on the wire wheel bracket; the magnetic braking mechanism comprises a driven disc, a transition disc and a driving disc which are coaxially connected in sequence from left to right; the driven disc and the driving disc are arranged symmetrically left and right relative to the transition disc; a plurality of large magnetic blocks are annularly arranged on the disc surface of the driving disc; the magnetic poles of two adjacent big magnetic blocks are opposite; a plurality of magnetic conduction pieces are annularly arranged on the disc surface of the transition disc; a plurality of small magnetic blocks are annularly arranged on the disc surface of the driven disc; the magnetic poles of the two adjacent small magnetic blocks are opposite; the rotating motor is fixedly arranged on the wire wheel bracket, and one end of the driving disc is arranged at the output end of the rotating motor; the driven disc is connected with the winding reel. The invention can utilize magnetic force to replace the traditional friction force to brake the wire wheel, solves the problem of abrasion and further improves the speed in the process of adjusting the tension of the cable.
Drawings
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of the adjustable reel of FIG. 1; FIG. 3 is an internal structural view of the adjustable reel of FIG. 2; fig. 4 is a structural view of the bobbin of fig. 2; FIG. 5 is a block diagram of the power disc activation assembly of FIG. 3; FIG. 6 is a block diagram of the drive plate of FIG. 3; FIG. 7 is a block diagram of the driven disk of FIG. 3; FIG. 8 is a structural view of a through hole of portion C in FIG. 7; FIG. 9 is a view showing an operating state of the magnetic braking mechanism; fig. 10 is a turning view of the bobbin of fig. 9; FIG. 11 is a schematic analytical view of the magnetic braking mechanism of FIG. 9; FIG. 12 is a view of the movement of the fluid within the cylinder during operation of the power disc activation assembly of FIG. 5; fig. 13 is a structural view of the switching member at a portion a in fig. 5; fig. 14 is an internal structural view of the switch in fig. 13; FIG. 15 is a view showing the structure of a return hole at the B portion in FIG. 5; FIG. 16 is a view illustrating the structure of a backstop pad at D in FIG. 5; in the figure, 100-adjustable reel, 200-detecting part, 201-housing, 202-pressure sensor, 300-cable, 400-switching piece, 1-reel holder, 11-brake mechanism holder, 2-transition disc, 21-magnetic conductive piece, 22-cylinder, 221-outer cavity, 222-inner cavity, 223-return hole, 224-non-return pad, 225-spacer, 3-driven disc, 31-small magnetic block, 32-piston cylinder, 33-pressure plate, 34-through hole, 331-inner ring, 332-outer ring, 4-drive disc, 41-large magnetic block, 42-drive inner sleeve, 43-piston rod, 401-support outer sleeve, 402-rotating inner sleeve, 403-magnetic pole, 404-electromagnetic coil, 405-a power supply, 406-a control module, 4011-a magnetic column accommodating groove, 4021-a clamping groove, 6-a rotating motor, 61-a driving outer sleeve, 7-a winding reel, 71-a connecting sleeve, 711-a positioning block, 8-a magnetic switch, S1-an adjusting magnetic field of a magnetic conduction piece, S2-an inherent magnetic field of a small magnetic block and S3-an inherent magnetic field of a large magnetic block.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, the present invention provides an intelligent cable tensioner, which includes a detecting part 200 for detecting the tension of a cable and an adjustable reel 100 controlled by the detecting part 200;
the detection component 200 comprises a cylindrical shell 201 and a pressure sensor 202 arranged at the lower end position of the inner wall of the shell 201; the detecting member 200 is used for detecting the tension of the cable 300 being conveyed, when the tension of the cable 300 is insufficient, the cable 300 will contact the pressure sensor 202, the pressure sensor 202 generates a signal and sends the signal to the adjustable reel 100, and the adjustable reel 100 adjusts the tension of the cable 300 (the detecting member 200 is a prior art, is a well-known technical means for those skilled in the art, and will not be described in detail herein).
Referring to fig. 2, 3, and 4, the adjustable reel 100 includes:
the wire wheel brackets 1 are positioned at two sides;
the wire winding drum 7 can be rotatably sleeved between the two wire wheel brackets 1, and a wire 300 is wound on the wire winding drum 7;
the braking mechanism bracket 11 is positioned in the winding reel 7 and fixedly arranged on the reel bracket 1;
the magnetic braking mechanism is arranged on the braking mechanism support 11 and comprises a driven disc 3, a transition disc 2 and a driving disc 4 which are sequentially arranged from left to right, and the driven disc 3, the transition disc 2 and the driving disc 4 are coaxially arranged; the driven disc 3 and the driving disc 4 are arranged symmetrically left and right relative to the transition disc 2;
referring to fig. 6, a plurality of large magnetic blocks 41 are uniformly arranged on the disc surface of the driving disc 4 in a ring shape; two adjacent big magnetic blocks 41 are installed with opposite magnetic poles;
referring to fig. 5, a plurality of magnetic conduction members 21 are uniformly and annularly arranged on the disk surface of the transition disk 2;
referring to fig. 7, a plurality of small magnetic blocks 31 are uniformly arranged on the disc surface of the driven disc 3 in a ring shape; the adjacent two small magnetic blocks 31 are arranged with opposite magnetic poles;
the rotating motor 6 is fixedly arranged on the wire wheel bracket 1, and one end of the driving disc 4 is arranged at the output end of the rotating motor 6;
the driven disc 3 is connected with the bobbin 7;
during working, if the winding reel 7 rotates anticlockwise to be a working state when cables are conveyed, when the tension of the cables 300 is insufficient and a certain braking force needs to be applied to the rotating winding reel 7;
referring to fig. 9 and 10, the driving disc 4 is driven by the rotating motor 6 to rotate counterclockwise (in the same direction as the rotation direction of the bobbin 7), the driven disc 3 is driven by the magnetic force to rotate clockwise, because the driven disc 3 is connected to the bobbin 7, and because the clockwise rotational force generated from the driven disc 3 driven by the magnetic force is smaller than the counterclockwise rotational force generated from the bobbin 7 drawn by the cable 300, the bobbin 7 drives the driven plate 3 to rotate counterclockwise, however, since the magnetic force applied to the driven plate 3 does not disappear, the driven disc 3 will generate a braking effect on the winding drum 7 (it is further explained that the rotation speed of the rotating motor 6 driving the driving disc 4 to rotate is much higher than the rotation speed of the winding drum 7 driving the driven disc 3 to rotate), so that the rotation speed of the winding drum 7 is reduced, and the tension of the cable 300 is adjusted. Another benefit of using magnetic force instead of friction for braking is: the magnetic braking has the effect of overload protection, and the cable is not damaged due to overlarge tension of the cable caused by overlarge braking force, so that the magnetic braking mechanism does not need to be stopped after being started, and the tension of the cable 300 can be adjusted in real time.
Referring to fig. 11, the principle that the driving disk 4 drives the driven disk 3 to rotate reversely by magnetic force (for convenience of describing the magnetic force variation, the driving disk 4, the driven disk 3 and the transition disk 2 are developed and described) is as follows:
the inherent magnetic fields S2 of the small magnetic blocks 31 and the small magnetic blocks of the driven disk 3 are arranged as shown in the figure (in the upper position of FIG. 11), and the driven disk 3 has 6 wave-length harmonics;
the magnetic conducting piece 21 of the transition disc 2 is shown in the figure (located at the middle position in fig. 11);
the big magnetic block 41 of the driving disc 4 and the inherent magnetic field S3 of the big magnetic block are arranged as shown in the figure (located at the lower position of fig. 11), and the driving disc 4 has 3 wavelengths of harmonic waves;
the magnetic conductive member 21 located at the middle position is magnetized by the small magnetic block 31 and the large magnetic block 41, so that the magnetic conductive member 21 generates an adjusting magnetic field (shown by a dotted line in the figure) in the upper magnetic domain, and when the phase difference between the intrinsic magnetic field S2 of the small magnetic block and the adjusting magnetic field S1 of the magnetic conductive member is 180 °, the driven disc 3, the transition disc 2 and the driving disc 4 are in a stable state.
When the driving disk 4 starts to move leftward, the original stable state is broken, and after the driving disk 4 moves leftward, the inherent magnetic field S3 of the large magnetic block also moves leftward, at this time, the adjusting magnetic field S1 of the magnetic conducting member is influenced to move rightward, and in order to obtain the stable state, the adjusting magnetic field S1 of the magnetic conducting member attracts the inherent magnetic field S2 of the small magnetic block to move rightward, so that the driven disk 3 moves rightward (in a direction opposite to the moving direction of the driving disk 4).
Referring to fig. 5, 6, 7 and 8, a power disc starting assembly is further disposed between the driven disc 3, the transition disc 2 and the driving disc 4, the power disc starting assembly includes a magnetic switch 8, the magnetic switch 8 is communicatively connected to the detection component 200, and when the detection component 200 controls the magnetic switch 8 to start, the driving disc 4 and the driven disc 3 located on both sides approach to the transition disc 2 located in the center at the same time.
The power disc actuation assembly includes:
the cylinder body 22 is arranged at the center of the transition disc 2, the cylinder body 22 comprises a spacer 225 arranged inside the cylinder body 22, the spacer 225 divides the inside of the cylinder body 22 into an inner cavity 222 and an outer cavity 221, the inner cavity 222 is communicated with the outer cavity 221 at one end position inside the cylinder body 22, a backflow hole 223 (shown in a part B in fig. 5 and fig. 15) is arranged on the spacer 225 at the other end position inside the cylinder body 22, and fluid is contained in the cylinder body 22;
a piston rod 43 arranged at one end of the driving disk 4, wherein the outer wall of the rod part of the piston rod 43 is provided with threads (the threads adopt fine threads and have good sealing property); the piston rod 43 is screwed to the cylinder 22 and extends into the inner cavity 222.
A piston cylinder 32 arranged at one end of the driven disc 3, wherein a pressure receiving plate 33 is arranged at one end of the piston cylinder 32 far away from the driven disc 3, the pressure receiving plate 33 is composed of an inner ring portion 331 positioned inside the piston cylinder 32 and an outer ring portion 332 positioned at the periphery of the piston cylinder 32, a plurality of through holes 34 (shown in part C in fig. 5 and fig. 8) are arranged at positions on the cylinder wall of the piston cylinder 32 close to the pressure receiving plate 33, and fluid can pass through the through holes 34; the piston cylinder 32 is slidably mounted in the outer cavity 221 of the cylinder 22.
Referring to fig. 5 and 12, when the driving disks 4 and the driven disks 3 on both sides approach the transition disk 2 in the center at the same time;
the driving disc 4 rotates, under the action of the screw transmission, the driving disc 4 moves towards the transition disc 2 (shown in the figure to the right), the driving disc 4 presses the fluid into the piston cylinder 32 through the piston rod 43 while moving, because the piston cylinder 32 is communicated with the inside of the outer cavity 221 through the through hole 34, the pressurized fluid flows into the outer cavity 221 located outside the piston cylinder 32 through the through hole 34 and presses one side of the outer ring part 332, the fluid pushes the pressure receiving plate 33 to move to the left, the pressure receiving plate 33 drives the driven disc 3 to move to the left, and at this time, the fluid in the outer cavity 221 located on the left side flows back to the inner cavity 222 through the backflow hole 223.
Referring to fig. 16, preferably, at the connection point (shown as D in fig. 5) of the cylinder block 22 and the piston cylinder 32, a check pad 224 is mounted on the cylinder block 22, the check pad 224 includes an arc portion, the top of the arc portion is in pressing contact with the outer wall of the piston cylinder 32, the piston cylinder 32 can only move on one side (move to the left in the drawing) under the action of the check pad 224, and when the piston cylinder 32 tends to move to the right during operation, the check pad 224 presses the outer wall of the piston cylinder 32, so as to brake the piston cylinder 32.
Referring to fig. 13 and 14, preferably, a switching member 400 is mounted on the cylinder 22 at a connection port (shown as a portion a in fig. 5) of the piston rod 43, the switching member 400 includes an outer support sleeve 401 and an inner rotating sleeve 402 rotatably mounted in the outer support sleeve 401, the outer support sleeve 401 is fixedly connected to the cylinder 22, an inner thread matched with the piston rod 43 is disposed on an inner wall of the inner rotating sleeve 402, the outer support sleeve 401 is mounted with a magnetic switch 8, and the outer support sleeve 401 and the inner rotating sleeve 402 can be switched between a rotating state and a locking state under the action of the magnetic switch 8.
When the driving disc 4, the driven disc 3 and the transition disc 2 are in a locked state, the supporting outer sleeve 401 and the rotating inner sleeve 402 cannot rotate relatively, the rotating piston rod 43 and the rotating inner sleeve 402 are in threaded transmission, and therefore distance adjustment of the driving disc 4, the driven disc 3 and the transition disc 2 is achieved.
When the driving disc 4 and the driven disc 3 only rotate, and distance adjustment cannot occur.
Referring to fig. 14, the magnetic switch 8 includes a locking groove 4021 formed in an outer wall of the rotating inner sleeve 402, a magnetic pillar receiving groove 4011 formed in an inner wall of the support outer sleeve 401, a magnetic pillar 403 movably installed in the magnetic pillar receiving groove 4011, an electromagnetic coil 404 installed on an outer wall of the support outer sleeve 401 and located above the magnetic pillar 403, and a driver connected to the electromagnetic coil 404; the depth of the card slot 4021 is smaller than the height of the magnetic pillar 403;
the driver comprises a power supply 405 and a control module 406; one end of the control module 406 is connected with a power supply 405, and the other end is connected with an electromagnetic coil 404; the control module 406 can change the current transmitted by the power supply 405 to the electromagnetic coil 404, so as to realize the exchange of the positive electrode and the negative electrode of the electromagnetic coil 404; the control module 406 is communicatively coupled to the pressure sensor 202;
when the supporting outer sleeve 401 and the rotating inner sleeve 402 are in a locked state, the electromagnetic coil 404 and the magnetic column 403 generate a magnetic repulsive force, the magnetic column 403 is pressed to the joint of the clamping groove 4021 and the magnetic column accommodating groove 4011, and the supporting outer sleeve 401 and the rotating inner sleeve 402 are clamped through the magnetic column 403.
When the supporting outer sleeve 401 and the rotating inner sleeve 402 are in a rotating state, the electromagnetic coil 404 and the magnetic column 403 generate magnetic attraction, the magnetic column 403 is sucked out from the clamping groove 4021, the magnetic column 403 is completely arranged in the magnetic column accommodating groove 4011, and the supporting outer sleeve 401 and the rotating inner sleeve 402 can rotate relatively.
Referring to fig. 5 and 6, the rotating motor 6 is connected with the driving disc 4 through a sleeve assembly, so that after the driving disc 4 moves, the rotating motor 6 can normally drive the driving disc 4 to rotate. The sleeve component comprises a driving inner sleeve 42 arranged on one side of the driving disc 4 and a driving outer sleeve 61 fixedly arranged at the output end of the rotating motor 6, the driving inner sleeve 42 is sleeved in the driving outer sleeve 61, and the driving inner sleeve 42 is connected with the driving outer sleeve 61 through a spline, so that the driving inner sleeve 42 and the driving outer sleeve 61 can only move axially.
Referring to fig. 3, 4 and 9, the driven disc 3 and the bobbin 7 are connected by a rotating assembly, so that after the driven disc 3 moves, the bobbin 7 can be further connected with the driven disc 3; the rotating assembly comprises a connecting sleeve 71 arranged in the bobbin 7, the connecting sleeve 71 is sleeved with the driven disc 3, a positioning block 711 is arranged on the inner wall of the connecting sleeve 71, and the positioning block 711 is embedded in the outer wall of the driven disc 3. The positioning block 711 realizes that the connecting sleeve 71 and the driven disc 3 only move along the axial direction and do not rotate relatively.
In this example, in the initial state (the tension of the cable is good), the rotating motor 6 drives the driving disc 4 to rotate, the driving disc 4 is far away from the driven disc 3, the magnetization effect is poor, and the braking effect of the driven disc 3 on the bobbin 7 is not obvious.
When the tension of the cable is insufficient, the detecting part 200 sends a signal to control the switching part 400 to enter a locking state, the piston rod 43 and the rotating inner sleeve 402 are in threaded transmission, the driving disc 4 and the driven disc 3 positioned at two sides simultaneously approach to the transition disc 2 positioned at the center position, the magnetic effect begins to be enhanced along with the movement, the piston rod moves to a preset distance (the control of the preset distance can be converted into the control of preset time through an external PLC (programmable logic controller) because the rotating speed of the rotating motor 6 is fixed, the detecting part 200 sends a signal to control the switching part 400 to enter the locking state, then the PLC performs preset time calculation, and when the preset time is over, the detecting part 200 controls the switching part 400 to enter the rotating state, the driving disc 4 and the driven disc 3 positioned at two sides stop approaching, in this state, the magnetic force effect is increased, so that the braking effect of the driven disc 3 is increased, the driven disc 3 generates a braking effect on the winding drum 7, and the braked winding drum 7 tensions the cable.
In summary, the invention provides an intelligent cable tensioning device, which comprises a detection component for detecting the tension of a cable and an adjustable reel controlled by the detection component in a communication manner; the adjustable reel comprises reel brackets positioned on two sides; the winding reel is rotatably arranged between the two wire wheel brackets and is wound with a wire cable; the braking mechanism bracket is positioned in the winding reel and fixedly arranged on the wire wheel bracket; the magnetic braking mechanism comprises a driven disc, a transition disc and a driving disc which are coaxially connected in sequence from left to right; the driven disc and the driving disc are arranged symmetrically left and right relative to the transition disc; a plurality of large magnetic blocks are annularly arranged on the disc surface of the driving disc; the magnetic poles of two adjacent big magnetic blocks are opposite; a plurality of magnetic conduction pieces are annularly arranged on the disc surface of the transition disc; a plurality of small magnetic blocks are annularly arranged on the disc surface of the driven disc; the magnetic poles of two adjacent small magnetic blocks are opposite; the rotating motor is fixedly arranged on the wire wheel bracket, and one end of the driving disc is arranged at the output end of the rotating motor; the driven disc is connected with the winding reel. The invention can utilize magnetic force to replace the traditional friction force to brake the wire wheel, solves the problem of abrasion and further improves the speed in the process of adjusting the tension of the cable.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. The intelligent cable tensioning device based on the paying-off process is characterized by comprising a detection component for detecting the tensioning force of a cable and an adjustable reel which is subjected to communication control by the detection component and pays off the cable;
the detection component comprises a shell with a cylindrical structure and a pressure sensor arranged at the lower end position of the inner wall of the shell;
the adjustable reel includes:
the wire wheel brackets are positioned on two sides;
the wire winding drum is rotatably sleeved between the two wire wheel brackets, and a wire cable is wound on the wire winding drum;
the braking mechanism bracket is positioned in the winding reel and fixedly arranged on the wire wheel bracket;
the magnetic braking mechanism comprises a driven disc, a transition disc and a driving disc which are coaxially arranged from left to right in sequence; the driven disc and the driving disc are symmetrically arranged relative to the transition disc;
a plurality of large magnetic blocks are uniformly arranged on the disc surface of the driving disc in a surrounding manner; two adjacent big magnetic blocks are arranged with opposite magnetic poles;
a plurality of magnetic conduction pieces are uniformly arranged on the disc surface of the transition disc in a surrounding manner;
a plurality of small magnetic blocks are uniformly arranged on the disc surface of the driven disc in a surrounding manner; two adjacent small magnetic blocks are arranged with opposite magnetic poles;
the rotating motor is fixedly arranged on the wire wheel bracket, and one end of the driving disc is arranged at the output end of the rotating motor;
the driven disc is connected with the winding reel;
a power disc starting assembly is arranged among the driven disc, the transition disc and the driving disc; the power disc starting assembly comprises a magnetic switch which is in communication connection with the detection part, and when the detection part controls the magnetic switch to start, the driving disc and the driven disc positioned on two sides simultaneously approach to the transition disc positioned in the center;
the power disc actuation assembly includes:
the cylinder body is arranged at the center of the transition disc and comprises a spacer bush arranged inside the cylinder body, and the spacer bush divides the inside of the cylinder body into an inner cavity and an outer cavity; the inner cavity is communicated with the outer cavity, the other end of the inner cavity is provided with a backflow hole; the cylinder body is filled with fluid;
the piston rod is arranged at one end of the driving disc, and the outer wall of the rod part of the piston rod is provided with threads; the piston rod is in threaded connection with the cylinder body and extends into the inner cavity;
the piston cylinder is arranged at one end of the driven disc, a pressure receiving plate is arranged at one end, far away from the driven disc, of the piston cylinder, the pressure receiving plate consists of an inner ring part positioned in the piston cylinder and an outer ring part positioned on the periphery of the piston cylinder, and a plurality of through holes are formed in the cylinder wall of the piston cylinder at positions close to the pressure receiving plate; the piston cylinder is arranged in the outer cavity in a sliding manner;
the cylinder body is positioned at the connecting port of the piston rod, and the switching piece is arranged on the cylinder body;
the switching piece comprises a supporting outer sleeve and a rotating inner sleeve which is rotatably arranged in the supporting outer sleeve, the supporting outer sleeve is fixedly connected to the cylinder body, an internal thread matched with the piston rod is arranged on the inner wall of the rotating inner sleeve, a magnetic switch is arranged on the supporting outer sleeve, and the supporting outer sleeve and the rotating inner sleeve can be switched between a rotating state and a locking state under the action of the magnetic switch;
the magnetic switch comprises a clamping groove arranged on the outer wall of the rotating inner sleeve, a magnetic column accommodating groove arranged on the inner wall of the supporting outer sleeve, a magnetic column movably arranged in the magnetic column accommodating groove, an electromagnetic coil arranged on the outer wall of the supporting outer sleeve and positioned above the magnetic column, and a driver connected with the electromagnetic coil; the depth of the clamping groove is smaller than the height of the magnetic column.
2. The intelligent cable tensioning device based on the paying-off process as claimed in claim 1, wherein the driver comprises a power supply and control module; one end of the control module is connected with the power supply, and the other end of the control module is connected with the electromagnetic coil.
3. The intelligent cable tensioning device based on the paying-off process is characterized in that the rotating motor is connected with the driving disc through a sleeve assembly;
the sleeve assembly comprises a driving inner sleeve arranged on one side of the driving disc and a driving outer sleeve fixedly arranged at the output end of the rotating motor, and the driving inner sleeve is sleeved in the driving outer sleeve through a spline structure.
4. The intelligent cable tensioning device based on the paying-off process is characterized in that the driven disc is connected with the winding drum through a rotating assembly;
the rotating assembly comprises a connecting sleeve arranged in the bobbin, the connecting sleeve is sleeved with the driven disc, a positioning block is arranged on the inner wall of the connecting sleeve, and the positioning block is embedded in the outer wall of the driven disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210078175.9A CN114104857B (en) | 2022-01-24 | 2022-01-24 | Intelligent cable tensioning device |
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| CN202210078175.9A CN114104857B (en) | 2022-01-24 | 2022-01-24 | Intelligent cable tensioning device |
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| CN114104857A CN114104857A (en) | 2022-03-01 |
| CN114104857B true CN114104857B (en) | 2022-05-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05270735A (en) * | 1992-03-30 | 1993-10-19 | Mitsubishi Electric Corp | Wire winding device |
| CN102710098B (en) * | 2012-06-13 | 2014-04-16 | 安徽理工大学 | Soft starting device capable of controlling magnetic force |
| CN105502091A (en) * | 2015-12-30 | 2016-04-20 | 宁波长壁流体动力科技有限公司 | Magnetically-controlled wire unwinding spindle |
| CN107277715B (en) * | 2017-07-17 | 2019-11-19 | 佛山市川东磁电股份有限公司 | A kind of straight line double-station electromagnetic switch |
| CN108631546A (en) * | 2018-08-02 | 2018-10-09 | 安徽理工大学 | A kind of novel adjustable speed disc type asynchronous magnetic coupler |
| CN211141129U (en) * | 2019-09-10 | 2020-07-31 | 于都捷信智造科技有限公司 | Automatic winding device for data connection line production |
| US20210219529A1 (en) * | 2020-01-21 | 2021-07-22 | Jeffrey Byrne | Magnetic Braking System |
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