CN211815144U - Constant tension pay-off - Google Patents
Constant tension pay-off Download PDFInfo
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- CN211815144U CN211815144U CN202020118528.XU CN202020118528U CN211815144U CN 211815144 U CN211815144 U CN 211815144U CN 202020118528 U CN202020118528 U CN 202020118528U CN 211815144 U CN211815144 U CN 211815144U
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- 229910000831 Steel Inorganic materials 0.000 description 30
- 239000010959 steel Substances 0.000 description 30
- 238000005096 rolling process Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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Abstract
The utility model discloses a constant tension pay-off device, which comprises a spool, a damping brake disc, a vertical force arm rod, a horizontal force arm rod, a force arm guide wheel, a connecting rod, a central rotating shaft, a pay-off conduit, a cradle bracket, a swing arm, an end plate, a cradle guide wheel, a force arm adjusting device, a force arm tension spring and a damping device; the swing arm comprises a rotating sleeve, a side wall rod and a swing rod, one end of the swing rod is rotatably connected with a roller, and a swing arm tension spring is arranged between the cradle bracket and the swing rod; the damping device comprises a damping adjusting device and a chain type damper, one end of the chain type damper is fixedly provided with a damping tension spring, one end of the damping tension spring is fixedly provided with a damping pull rope, and one end of the damping pull rope is wound on the circumferential wall of the rotating sleeve and is fixed on the circumferential wall of the rotating sleeve. Through the setting, along with the spool wire rope roll diameter diminishes, wire rope's tension can grow gradually, and the unwrapping wire damping can be according to the automatic fine setting of the size of wire rope roll diameter this moment, guarantees that unwrapping wire in-process wire rope tension is unanimous, and then promotes product quality.
Description
Technical Field
The utility model relates to wire rope stranding technique, concretely relates to permanent tension pay-off.
Background
In the operation process of the tubular strander, the tension of the strand needs to be strictly controlled, particularly in the project with higher requirement on the surface quality of the steel wire rope, the quality of a finished product is directly influenced by the change of the tension of the strand, and the paying-off damping of the strand is constant in the whole paying-off process. The existing pay-off seat comprises a pay-off shaft fixed on a bottom plate, a chassis connected with the pay-off shaft through a bearing, a counterweight iron plate is fixed on the chassis, a friction ring is fixed below the chassis, a friction plate is fixed on the bottom plate, the friction ring is pressed on the friction plate under the action of gravity, and when a spool rotates for pay-off, the friction force between the friction plate and the friction plate must be overcome, so that a steel wire rope is guaranteed to have a certain tension force.
The strand tension can be gradually increased along with the gradual reduction of the spool strand roll diameter, a certain range difference exists between the strand tension in a full-wheel state and the strand tension in an empty spool state, the range difference can cause the difference of the surface quality of the front part and the rear part of a finished steel wire rope, however, the friction surface between the friction disc and the friction disc is kept unchanged, the paying-off tension of the steel wire rope cannot be adjusted, and therefore the paying-off damping in the whole paying-off process in the prior art is constant, and the use is limited.
Disclosure of Invention
The utility model aims at the problem that prior art exists, provide a permanent tension pay-off, finely tune unwrapping wire damping according to wire rope's book footpath size, and then can guarantee that the tension of unwrapping wire in-process wire rope is unanimous.
In order to achieve the above object, the utility model adopts the following technical scheme:
a constant tension pay-off device comprises a damping brake disc, a spool coaxially connected with the damping brake disc, a pay-off guide pipe arranged on one side of the spool and a vertical arm rod arranged on the other side of the spool, the upper end of the vertical force arm rod is rotatably connected with a force arm guide wheel, the lower end of the vertical force arm rod is fixedly connected with a connecting rod, the two ends of the connecting rod are fixedly provided with a central rotating shaft, a transverse arm rod is fixedly arranged at the middle section of the vertical arm rod, a cradle bracket is arranged between the I-shaped wheel and the vertical arm rod, one end of the cradle bracket is fixed, the other end of the cradle bracket is rotatably connected with a cradle guide wheel, it is characterized in that one end of the connecting rod is fixedly provided with an end plate, the cradle bracket is provided with a force arm adjusting device, a force arm tension spring is connected between the force arm adjusting device and the end plate, and one end of one central rotating shaft is rotatably connected with a swing arm;
the swing arm comprises a rotating sleeve rotatably connected with the central rotating shaft, a side wall rod fixedly arranged on the peripheral wall of the rotating sleeve and a swing rod fixedly arranged at one end, far away from the rotating sleeve, of the side wall rod, one end, far away from the side wall rod, of the swing rod is rotatably connected with a roller wheel, a swing arm tension spring is fixedly arranged between the cradle support and the swing rod, the roller wheel is positioned below the I-shaped wheel, and a damping device is arranged between the transverse force arm rod and the damping brake disc;
damping device including set up in damping adjusting device and one end on the horizontal force armed lever set firmly in chain damping on the damping adjusting device, the other one end of chain damping is walked around damping tension spring has set firmly behind the damping brake disc, the damping tension spring is kept away from chain damped one end has set firmly the damping stay cord, the damping stay cord is kept away from the one end of damping tension spring is around locating change cover perisporium back end portion and be fixed in change on the cover perisporium.
Through the technical scheme, the spool wound with the steel wire rope is installed in the machine body, the end part of the spool is connected with the damping brake disc, the roller abuts against the lower side end of the steel wire rope, and the damping tension spring and the swing arm tension spring are both in a stretching state. The end part of the steel wire rope is paid off sequentially through a paying off guide pipe, a force arm guide wheel and a cradle guide wheel, a force arm adjusting screw is adjusted before paying off, the main force of the device can be adjusted through the cooperation between the force arm adjusting screw and a force arm tension spring, then a damping adjusting screw is adjusted, the tension of chain damping can be adjusted through the damping adjusting screw, and the paying off is started after the adjustment is completed. During paying off, the steel wire rope leaves the spool gradually, so that the winding radius of the steel wire rope is smaller and smaller, and the roller is kept to abut against the steel wire rope under the action of the tension of the swing arm tension spring at the moment, so that the winding radius of the steel wire rope is fed back in real time. When the winding radius of the steel wire rope is gradually reduced, the swing arm swings towards the spool to drive the rotating sleeve to rotate, the damping pull rope wound on the peripheral wall of the rotating sleeve can be gradually separated from the rotating sleeve when the rotating sleeve rotates, the damping tension spring can contract at the moment, and the linear change of chain damping is realized by utilizing the linear relation between the damping tension spring, the length of the damping pull rope and the tension, so that the constant tension of the wire outlet can be ensured.
Further, arm of force adjusting device including running through the arm of force adjusting screw of cradle support and with arm of force adjusting screw threaded connection's two arm of force adjusting nut, the cradle support is located two between the arm of force adjusting nut, arm of force extension spring one end with arm of force adjusting screw fixed connection.
Through the technical scheme, the arm of force adjusting screw is screwed, and the main tension can be adjusted through the matching between the arm of force adjusting screw and the arm of force adjusting nut.
Furthermore, the damping adjusting device comprises a damping adjusting screw penetrating through the transverse force arm rod and two damping adjusting nuts in threaded connection with the damping adjusting screw, the transverse force arm rod is located between the two damping adjusting nuts, and one end of the chain type damping is fixedly connected with the damping adjusting screw.
Through the technical scheme, the damping adjusting screw rod is screwed, and the tension of the chain type damping can be adjusted through the matching between the damping adjusting screw rod and the damping adjusting nut.
Furthermore, a plurality of connecting bearings are fixedly arranged on the central rotating shaft, the rotating sleeve is rotatably connected with the central rotating shaft through the connecting bearings, and the connecting bearings are fixedly arranged at one ends, far away from the connecting rod, of the central rotating shaft.
Through above-mentioned technical scheme, change the cover and realize through two connection bearing and be connected with the rotation between the central pivot.
Furthermore, a groove is formed in the position of the damping pull rope on the peripheral wall of the rotating sleeve, and the damping pull rope is clamped in the groove.
Through above-mentioned technical scheme, the damping stay cord is located the recess, and damping stay cord slides on changeing cover week wall when can preventing to change the cover rotation, and when changeing cover rolling damping stay cord, the rolling orbit of damping stay cord can be restricted to the recess simultaneously.
Furthermore, the damping stay cord is kept away from one end part of the damping tension spring and a locking screw is arranged between the grooves, the locking screw is in threaded connection with the grooves, a locking nut is in threaded connection with the locking screw, and the end part of the damping stay cord is fixedly connected with the rotating sleeve through the locking screw.
Through the technical scheme, the end part of the damping pull rope is fixed at the end part of the groove through the matching of the locking screw and the locking nut.
Furthermore, the swing rod is arranged in a bending mode back to the spool, and the bending radian of the swing rod is consistent with the radian of the peripheral wall of the end portion of the spool.
Through above-mentioned technical scheme, the crooked setting of pendulum rod can prevent the pole body and the wire rope butt of pendulum rod.
Furthermore, the force arm guide wheel is opposite to the cradle guide wheel.
Through the technical scheme, the steel wire rope sequentially passes through the force arm guide wheel and the cradle guide wheel, and the peripheral walls of the two guide wheels are arranged oppositely, so that the steel wire rope can run stably between the two guide wheels.
Furthermore, the vertical force arm rod is far away from one end of the connecting rod is in threaded connection with a fixing bolt, a plurality of rotating bearings are fixedly arranged on the fixing bolt, the force arm guide wheel sleeve is arranged on the rotating bearings, one end of the cradle support is fixedly provided with the fixing bolt, a plurality of rotating bearings are fixedly arranged on the fixing bolt, and the cradle guide wheel sleeve is arranged on the rotating bearings.
Through the technical scheme, the fixing bolt on the vertical force arm rod is matched with the rotating bearing to realize the rotating connection of the force arm guide wheel on the vertical force arm rod, and the fixing bolt on the cradle support is matched with the rotating bearing to realize the rotating connection of the cradle guide wheel on the end part of the cradle support.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the swing arm tension spring is arranged, so that a tensile force can be provided, the roller is enabled to be tightly attached to the diameter of the steel wire rope wound in the spool, when the steel wire rope is gradually separated from the spool, the diameter of the steel wire rope wound on the spool is gradually reduced, at the moment, the roller can be kept in abutting joint with the diameter of the steel wire rope due to the action of the swing arm tension spring, and the size of the diameter can be fed back in real time;
2. by arranging the damping tension springs and the damping pull ropes, when the coil diameter of the steel wire rope is reduced, the swing rods swing and feed back the change to the side wall rods, so that the rotating sleeve is driven to rotate, the damping pull ropes are released by the rotating sleeve, the deformation of the damping tension springs is reduced, and the tension of chain type damping can be adjusted in real time;
3. through setting up the recess, arrange the damping stay cord in the recess, prevent that the position of damping stay cord on changeing the cover perisporium from taking place the skew, when changeing cover rolling damping stay cord simultaneously, the recess can be as the effect of a guide rail, the rolling orbit of restriction damping stay cord.
Drawings
FIG. 1 is a schematic structural view of a constant tension pay-off device of the present invention;
FIG. 2 is a left side schematic view of FIG. 1;
FIG. 3 is a rear view of FIG. 1;
in the figure: 1. a spool; 2. damping a brake disc; 3. a vertical arm lever; 4. a transverse arm lever; 5. a connecting rod; 6. fixing the bolt; 7. a rotating bearing; 8. a moment arm guide wheel; 9. a wire-laying catheter; 10. a central rotating shaft; 12. rotating the sleeve; 13. a sidewall bar; 14. connecting a bearing; 15. a swing rod; 151. connecting a screw rod; 152. a connecting nut; 16. a roller; 17. a damping adjusting screw; 18. a damping adjusting nut; 19. chain damping; 20. a damping tension spring; 21. a damping pull rope; 22. a groove; 23. locking the screw; 24. locking the nut; 25. a cradle support; 26. a cradle guide wheel; 27. a swing arm tension spring; 28. an end plate; 29. a force arm adjusting screw; 30. a moment arm adjusting nut; 31. a tension spring of force arm; 32. full wheel radial line.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, the constant-tension pay-off device is arranged in a machine body (not shown in the figure), and comprises a damping brake disc 2 and a spool 1, wherein the damping brake disc 2 is rotatably connected in the machine body, the center of one end of the spool 1 is coaxially and fixedly connected with the damping brake disc 2, a vertical force arm rod 3 is fixedly arranged beside the spool 1 in the machine body, and the length direction of the vertical force arm rod 3 is orthogonal to the axis of the spool 1. The middle section of the vertical arm rod 3 is fixedly provided with a transverse arm rod 4, the length direction of the transverse arm rod 4 is parallel to the axis of the spool 1, one end of the transverse arm rod 4, far away from the vertical arm rod 3, is arranged towards the damping brake disc 2, and the position of the transverse arm rod 4 in the space is flush with the upper side end of the damping brake disc 2. The lower end of the vertical arm lever 3 is fixedly provided with a connecting rod 5, the end part of the vertical arm lever 3 is fixedly connected with one end of the connecting rod 5, and the other end of the connecting rod 5 and the transverse arm lever 4 are positioned at the same side of the vertical arm lever 3. Connecting rod 5 is the cylinder pole, and 5 axes of connecting rod are parallel with 4 length direction of horizontal arm pole, and 5 both ends of connecting rod all coaxially set firmly central pivot 10, and central pivot 10 is the cylinder pole. The upper end of the vertical arm lever 3 is back to one side of the transverse arm lever 4 and is located away from one end of the connecting rod 5, the threaded connection is provided with a fixing bolt 6, the axis of the fixing bolt 6 is perpendicular to the axis of the vertical arm lever 3, the fixing bolt 6 is coaxially sleeved with two rotating bearings 7, the outer wall of the two rotating bearings 7 is sleeved with the same arm of force guide wheel 8, the axis of the arm of force guide wheel 8 coincides with the axis of the rotating bearings 7, and the arm of force guide wheel 8 is rotatably connected with the vertical arm lever 3 through the rotating bearings 7 and the fixing bolt 6. A paying-off guide pipe 9 is fixedly arranged on one side, close to the spool 1 and back to the force arm guide wheel 8, in the machine body, the spool 1 is located between the paying-off guide pipe 9 and the force arm guide wheel 8, the axis of the paying-off guide pipe 9 is parallel to the axis of the spool 1, and the height of the paying-off guide pipe 9 in the machine body is equal to the height of the force arm guide wheel 8 in the machine body. One end of the steel wire rope extends out of the spool 1, winds the paying-off guide pipe 9, extends towards the force arm guide wheel 8 after being arranged at the half side, back to the force arm guide wheel 8, of the paying-off guide pipe 9, winds the circumferential wall of the force arm guide wheel 8, and is positioned between the force arm guide wheel 8 and the paying-off guide pipe 9 and is horizontal.
Rotate on the central pivot 10 with horizontal power armed lever 4 homonymy and be provided with the swing arm, the swing arm is close to connecting rod 5 and sets up, the swing arm includes that coaxial rotation connects commentaries on classics cover 12 and an organic whole on changeing cover 12 perisporium and connect in commentaries on classics side wall pole 13, change the downside perisporium of cover 12 and damping brake disc 2's downside parallel and level, change cover 12 one end of connecting rod 5 dorsad and damping brake disc 2 just to setting up, it is less than horizontal power armed lever 4 dorsad vertical power armed lever 3 one end and the distance between the vertical power armed lever 3 to change the distance between cover 12 dorsad connecting rod 5 one end and the vertical power armed lever 3. Four connecting bearings 14 are coaxially and fixedly arranged on the central rotating shaft 10, wherein two connecting bearings 14 are respectively embedded into two ends of the rotating sleeve 12 to realize the rotating connection of the rotating sleeve 12 and the central rotating shaft 10, and the other two connecting bearings 14 are respectively and fixedly arranged at the end parts of the two central rotating shafts 10 far away from the connecting rod 5.
Referring to fig. 1 and 2, the side wall rod 13 is fixedly connected to one side of the rotating sleeve 12 close to the connecting rod 5, a swing rod 15 is fixedly arranged at one end of the side wall rod 13, which is back to the rotating sleeve 12, the length direction of the swing rod 15 is orthogonal to the axis of the rotating sleeve 12, an obtuse angle is formed between the swing rod 15 and the side wall rod 13, the swing rod 15 is obliquely arranged towards the bottommost side of the spool 1, the swing rod 15 is arranged in a manner of being back to the spool 1 in a bent mode, and the bent radian of the swing rod 15 is identical. The swing rod 15 is kept away from lateral wall pole 13 one end and is run through there is connecting screw 151, connecting screw 151 axis is parallel with the axis of I-shaped wheel 1, threaded connection has coupling nut 152 behind the one end of connecting screw 151 runs through swing rod 15, the cover is equipped with two rolling bearing 7 on the perisporium between connecting screw 151 is located the one end of keeping away from coupling nut 152 and swing rod 15, the cover is equipped with a gyro wheel 16 on two rolling bearing 7, gyro wheel 16 passes through rolling bearing 7 and connecting screw 151's cooperation realization and is connected with the rotation of swing rod 15. The spool 1 is positioned between the pay-off guide pipe 9 and the swing rod 15, and the swing rod 15 can be driven to swing by rotating the rotating sleeve 12, so that the rolling way can be driven to swing to abut against a steel wire rope on the spool 1.
The transverse force arm rod 4 is just provided with a damping adjusting device at the position of one end of the rotating sleeve 12 far away from the connecting rod 5, the damping adjusting device comprises a damping adjusting screw rod 17 and two damping adjusting nuts 18, wherein the damping adjusting screw rod 17 penetrates through the transverse force arm rod 4, the length direction of the damping adjusting screw rod 17 is perpendicular to the length direction of the transverse force arm rod 4 and orthogonal to the length direction of the vertical force arm rod 3, and the axis of the damping adjusting screw rod 17 is parallel and level with the upper side of the damping brake disc 2. The two damping adjusting nuts 18 are respectively in threaded connection with the parts of the damping adjusting screw 17, which are positioned on the two sides of the cross-arm lever 4, so that the cross-arm lever 4 is positioned between the two damping adjusting nuts 18. The damping brake disc 2 is equipped with chain damping 19 in the winding way to vertical power armed lever 3 one side dorsad, chain damping 19 one end is towards the extension of damping adjusting screw 17 and with the last one end fixed connection towards the I-shaped wheel 1 of damping screw, the length direction of the part that chain damping 19 is located between damping brake disc 2 and the damping adjusting screw 17 is parallel with the axis of damping adjusting screw 17, the other one end of chain damping 19 is towards changeing the cover 12 extension and the tip sets firmly the one end of damping extension spring 20, the other one end of damping extension spring 20 sets firmly the one end of damping stay cord 21, the other one end of damping stay cord 21 is around locating on changeing the cover 12 and keeping away from the perisporium of connecting rod 5 one. The chain-type damper 19, the damping tension spring 20, the damping pull rope 21 and the damping brake disc 2 are positioned in the same rotating plane, and the length direction of the damping tension spring 20 and the length direction of the part of the damping pull rope 21 positioned between the damping tension spring 20 and the rotating sleeve 12 are parallel to the axis of the damping adjusting screw 17. The damping adjusting screw 17 is screwed to adjust the tension of the chain type damping 19, the length of the damping tension spring 20 is in a linear relation with the tension, when the rotary sleeve 12 releases the damping pull rope 21, the damping tension spring 20 contracts, the tension is reduced, and when the rotary sleeve 12 winds the damping pull rope 21, the damping tension spring 20 extends, and the tension is increased.
The one end of the rotating sleeve 12 periphery wall far away from the connecting rod 5 is provided with a groove 22 around the axis, the length of the groove 22 is greater than half of the rotating sleeve 12 periphery length, the groove 22 is arranged on one side of the rotating sleeve 12 periphery wall back to the side wall rod 13, one end of the groove 22 is arranged on one side of the rotating sleeve 12 back to the transverse force arm rod 4, the other end of the groove 22 is arranged on one side of the rotating sleeve 12 periphery wall towards the transverse force arm rod 4, one end of the groove 22 arranged on one side of the rotating sleeve 12 back to the transverse force arm rod 4 is smoothly connected with the rotating sleeve 12 periphery wall, and the groove 22 is arranged on the damping stay cord 21 around the position. The damping stay cord 21 is kept away from damping extension spring 20 one end and gets into in the recess 22 from recess 22 back to horizontal power armed lever 4 one end, then winds the recess 22 trend and establishes around extending to recess 22 towards horizontal power armed lever 4 one end, and the position of damping stay cord 21 can be restricted to recess 22, prevents that damping stay cord 21 from sliding on the 12 week walls of commentaries on classics cover. One end of the groove 22 facing the transverse force arm rod 4 is in threaded connection with a locking screw 23, the locking screw 23 is in threaded connection with a locking nut 24, and the end part of the damping pull rope 21 is fixedly connected with the end part of the groove 22 through the locking screw 23. The damping pull rope 21 is located in the groove 22, so that position deviation is not prone to occurring, and meanwhile, when the damping pull rope 21 is wound by the rotary sleeve 12, the winding track of the damping pull rope 21 is limited by the groove 22.
Referring to fig. 1 and 2, a cradle support 25 is arranged between the vertical arm 3 and the spool 1, the length direction of the cradle support 25 is parallel to the length direction of the transverse arm 4 and orthogonal to the length direction of the vertical arm 3, the cradle support 25 is located below the transverse arm 4 and close to the transverse arm 4, and the cradle support 25 and the transverse arm 4 are located on the same side of the vertical arm 3. One end of the cradle support 25, far away from the vertical force arm rod 3, is fixedly arranged, the other end of the cradle support is also in threaded connection with a fixing bolt 6, the axis of the fixing bolt 6 is parallel to the length direction of the cradle support 25, two rotating bearings 7 are coaxially sleeved on the fixing bolt 6, the same cradle guide wheel 26 is coaxially and fixedly sleeved on the two rotating bearings 7, the cradle guide wheel 26 is rotatably connected to the end part of the cradle support 25 through the fixing bolt 6, and the cradle guide wheel 26 is opposite to the force arm guide wheel 8.
Referring to fig. 3, one end of a swing arm tension spring 27 is fixedly arranged on the cradle support 25 opposite to the swing rod 15, and the other end of the swing arm tension spring 27 is fixedly connected with the joint of the swing rod 15 and the side wall rod 13. One end of the connecting rod 5 close to the rotating sleeve 12 is fixedly provided with an end plate 28, the length direction of the end plate 28 is vertical to the axis of the rotating sleeve 12, one end of the end plate 28 far away from the shaft sleeve is arranged under the cradle support 25, a force arm adjusting device is arranged on the cradle support 25 and is opposite to the end part of the end plate 28, the force arm adjusting device comprises a force arm adjusting screw 29 penetrating through the cradle support 25 and two force arm adjusting nuts 30, wherein the axis of the force arm adjusting screw 29 is vertical to the length direction of the cradle support 25 and is parallel to the length direction of the vertical force arm rod 3, the two force arm adjusting nuts 30 are respectively in threaded connection with parts of the force arm adjusting screw 29, which are positioned at two sides of the cradle support 25, and thus the cradle support 25. A force arm tension spring 31 is fixedly arranged between the force arm adjusting screw 29 and the end plate 28, and two ends of the force arm tension spring 31 are respectively fixed on one end of the force arm adjusting screw 29 facing the end plate 28 and one end of the end plate 28 far away from the connecting rod 5.
Referring to fig. 1, full wheel radial lines 32 are arranged at two ends of a spool 1, a steel wire rope is wound in the spool 1 for one circle, when the wound diameter of the steel wire rope is coincident with the full wheel radial lines 32, winding is stopped, at the moment, the spool 1 is in a full-wheel state, the spool 1 is installed in a machine body, a damping brake disc 2 is fixedly connected with one end of the spool 1, at the moment, a roller 16 abuts against the steel wire rope below the spool 1, a force arm tension spring 31, a swing arm tension spring 27 and a damping tension spring 20 are all in a stretching state, main tension can be adjusted by adjusting a force arm adjusting screw 29, at the moment, the end part of the damping pull rope 21, far away from the damping tension spring 20, is positioned on one side of a cradle support 25 on a rotating sleeve 12, one end of the damping pull rope 21, far away from the damping tension spring 20, is wound on the peripheral.
The working principle and the effect of the technical scheme are as follows:
after the device is assembled, firstly, a spool 1 with a diameter (empty spool state) of a spool bottom roll is thrown, a roller 16 is tightly attached to the spool bottom, and the outgoing line tension of the steel wire rope is adjusted to the process standard through adjusting a force arm adjusting screw 29 and a damping adjusting screw 17; then the spool 1 with the full-wheel winding diameter is thrown in, the idler wheel 16 is pressed down by the self weight of the spool 1, the rotating sleeve 12 rotates around the central rotating shaft 10, at the moment, the damping pull rope 21 is tightened, the deformation of the damping tension spring 20 is increased, the friction force exerted on the damping brake disc 2 by the chain type damping 19 is increased, and the wire outlet tension of the steel wire rope is detected to be consistent with that of the idle wheel state again; then the end part of the steel wire rope is sequentially wound on the paying-off guide pipe 9, the force arm guide wheel 8 and the cradle guide wheel 26 to be ledAfter the machine tool normally operates, the roll diameter of the spool 1 is gradually reduced, and the roll diameter is monitored by the swing rod 15 in real time, so that the swing rod 15 swings, the swing rod 15 drives the rotating sleeve 12 to rotate by the central rotating shaft 10, the damping pull rope 21 is released, and the deformation of the damping tension spring 20 is reduced, so that the effect that the force applied by the chain type damping 19 forms proportional change along with the roll diameter of the spool is achieved. The principle of the scheme is based on a formula FResistance device×RResistance device＝FSheet of paper×RRoll of paperWherein F isResistance deviceForce applied for chain damping 19, RResistance deviceTo damp the radius of the brake disc 2, FSheet of paperIs the wire outlet tension of the steel wire rope, RRoll of paperThe diameter of the wire rope on the spool 1 is coiled. From the above formula, the diameter R of the damping brake disc 2Resistance deviceConstant and constant steel wire rope coil diameter RRoll of paperUnder the condition of reducing, the wire outlet tension F of the steel wire rope needs to be ensuredSheet of paperConstant, it is necessary to be at RRoll of paperReduced while ensuring FResistance deviceThe reduction, among the above-mentioned technical scheme, the deformation of damping extension spring 20 reduces and can reduce FResistance device。
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A constant tension pay-off device comprises a damping brake disc, a spool coaxially connected with the damping brake disc, a pay-off guide pipe arranged on one side of the spool and a vertical arm rod arranged on the other side of the spool, the upper end of the vertical force arm rod is rotatably connected with a force arm guide wheel, the lower end of the vertical force arm rod is fixedly connected with a connecting rod, the two ends of the connecting rod are fixedly provided with a central rotating shaft, a transverse arm rod is fixedly arranged at the middle section of the vertical arm rod, a cradle bracket is arranged between the I-shaped wheel and the vertical arm rod, one end of the cradle bracket is fixed, the other end of the cradle bracket is rotatably connected with a cradle guide wheel, it is characterized in that one end of the connecting rod is fixedly provided with an end plate, the cradle bracket is provided with a force arm adjusting device, a force arm tension spring is connected between the force arm adjusting device and the end plate, and one end of one central rotating shaft is rotatably connected with a swing arm;
the swing arm comprises a rotating sleeve rotatably connected with the central rotating shaft, a side wall rod fixedly arranged on the peripheral wall of the rotating sleeve and a swing rod fixedly arranged at one end, far away from the rotating sleeve, of the side wall rod, one end, far away from the side wall rod, of the swing rod is rotatably connected with a roller wheel, a swing arm tension spring is fixedly arranged between the cradle support and the swing rod, the roller wheel is positioned below the I-shaped wheel, and a damping device is arranged between the transverse force arm rod and the damping brake disc;
damping device including set up in damping adjusting device and one end on the horizontal force armed lever set firmly in chain damping on the damping adjusting device, the other one end of chain damping is walked around damping tension spring has set firmly behind the damping brake disc, the damping tension spring is kept away from chain damped one end has set firmly the damping stay cord, the damping stay cord is kept away from the one end of damping tension spring is around locating change cover perisporium back end portion and be fixed in change on the cover perisporium.
2. The constant tension pay-off device according to claim 1, wherein the force arm adjusting device comprises a force arm adjusting screw penetrating through the cradle support and two force arm adjusting nuts in threaded connection with the force arm adjusting screw, the cradle support is located between the two force arm adjusting nuts, and one end of the force arm tension spring is fixedly connected with the force arm adjusting screw.
3. A constant tension pay-off device as claimed in claim 1, wherein the damping adjustment device comprises a damping adjustment screw penetrating through the cross-force arm and two damping adjustment nuts threadedly connected with the damping adjustment screw, the cross-force arm is located between the two damping adjustment nuts, and one end of the chain-type damper is fixedly connected with the damping adjustment screw.
4. A constant tension pay-off device as claimed in claim 1, wherein a plurality of connecting bearings are fixedly arranged on the central rotating shaft, the rotating sleeve is rotatably connected with the central rotating shaft through the connecting bearings, and the connecting bearings are fixedly arranged at both ends of the two central rotating shafts far away from the connecting rods.
5. A constant tension pay-off device as claimed in claim 1, wherein a groove is formed in the circumferential wall of the rotary sleeve at the position of the damping pull rope, and the damping pull rope is clamped in the groove.
6. A constant-tension pay-off device as claimed in claim 5, wherein a locking screw is arranged between one end part of the damping pull rope, which is far away from the damping tension spring, and the groove, the locking screw is in threaded connection with the groove, a locking nut is in threaded connection with the locking screw, and the end part of the damping pull rope is fixedly connected with the rotary sleeve through the locking screw.
7. A constant tension pay-off device as defined in claim 1, wherein said rocker is curved away from said spool, said rocker curvature corresponding to the curvature of the peripheral wall of the end of said spool.
8. A constant tension pay-off device as defined in claim 1, wherein said arm guide wheel is disposed opposite to said cradle guide wheel.
9. The constant tension pay-off device as claimed in claim 1, wherein a fixing bolt is threadedly connected to an end of the vertical arm lever away from the connecting rod, a plurality of rotating bearings are fixedly arranged on the fixing bolt, the arm guide wheel is sleeved on the rotating bearings, the fixing bolt is also fixedly arranged at an end of the cradle support, a plurality of rotating bearings are also fixedly arranged on the fixing bolt, and the cradle guide wheel is sleeved on the rotating bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020118528.XU CN211815144U (en) | 2020-01-15 | 2020-01-15 | Constant tension pay-off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020118528.XU CN211815144U (en) | 2020-01-15 | 2020-01-15 | Constant tension pay-off |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647329A (en) * | 2021-01-20 | 2021-04-13 | 江阴鼎天科技有限公司 | Mechanical constant-tension pay-off device for producing steel wire rope |
| CN113734901A (en) * | 2021-09-02 | 2021-12-03 | 贵州钢绳股份有限公司 | Steel wire paying-off tension device and using method thereof |
-
2020
- 2020-01-15 CN CN202020118528.XU patent/CN211815144U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647329A (en) * | 2021-01-20 | 2021-04-13 | 江阴鼎天科技有限公司 | Mechanical constant-tension pay-off device for producing steel wire rope |
| CN113734901A (en) * | 2021-09-02 | 2021-12-03 | 贵州钢绳股份有限公司 | Steel wire paying-off tension device and using method thereof |
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