CN102745556B - Mechanical expansion shaft of air control C-shaped rings - Google Patents
Mechanical expansion shaft of air control C-shaped rings Download PDFInfo
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- CN102745556B CN102745556B CN201210268830.3A CN201210268830A CN102745556B CN 102745556 B CN102745556 B CN 102745556B CN 201210268830 A CN201210268830 A CN 201210268830A CN 102745556 B CN102745556 B CN 102745556B
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Abstract
The invention discloses a mechanical expansion shaft of air control C-shaped rings, which is used for metal and non-metal foil and a film-shaped coiled material and is suitable for production of an aluminium strip and foil. In order to solve the problem of compressibility of an expanded strip, no foundation in friction of an slope expansion block and low precision and structural strength in the existing gasbag type and slope-to-slope type mechanical expansion shaft, the invention provides a novel slope-to-round structure with automatically retracting capacity to replace the typical slope-to-slope old-fashioned structure; the novel slope-to-round structure comprises a main shaft pipe and an expansion mechanism; a plurality cone-shaped wedge pipes and a plurality of C-shaped rings are symmetrically sleeved on the expansion mechanism; and propulsion of the cone-shaped wedge pipes in opposite directions lead the C-shaped rings with a plurality of anti-skidding blades on the conical surface in a sleeving way to expand outward, so as to become secondary mechanical increasing force to tightly clamp a core rolling pipe. According to the invention, the slope-to-round structure is small in radial size, so that the strength of the expansion shaft is enhanced; the radial run-out error of the shaft is reduced due to disappearance of gaps between the blades and the shaft during the clamping; and the mechanical expansion shaft is applicable to the production for rolling thick pipe cores in wide roll width.
Description
Technical field
The present invention relates to a kind of gas control C shape circle mechanical type expanding shaft, belong to the technical field of metal and non-metal paper tinsel, membranaceous coiled material bundling machining shaft.
Background technology
In metal and non-metal paper tinsel, membranaceous coiled material and aluminium strip, aluminium foil processing, become the program of the finished product coiled material of different in width to be large wide cut coiled material bundling: first volume core pipe to be through on winding off spindle, then by the swelling shaft of different swelling modes and disalignment header structure, be clamped between the folder axle of reel rotation and complete uncoiling and batch.
The winding off spindle that has at present three kinds of versions, a kind of is that volume core pipe is through on the solid axle that there is no breathing function, or with volume core end surfaces key, with nut, clamps.This solid axle is because utilization is dwindled method with volume core pipe tolerance clearance and improved and batch precision, the tooling cost of therefore rolling up core pipe is high, it is contradiction that gap is reduced with smoking axle light, it is usually used in carefully rolling up batching in work of core pipe, wide cut rewinding, weak point be batch low precision, volume core pipe end is worn key, is inconvenient to roll up adjustment centering and the operation of core pipe.
In order to improve the precision of this class winding off spindle, the applicant once declared two utility model patents, and the patent No. is respectively: ZL201020127985.1 ZL201020589518.0
Another: be that in tradition application, to have the air bag swelling shaft of breathing function, its advantage to be that volume core pipe is adjusted centering convenient, weak point is the compressibility due to gas, causes the coiled material radial runout in batching, thereby affects the raising of precision.Conventional spindle tube circumference has the deep trouth of 5 to 12 elongated installation air bags, this is without the solidifying intensity that has reduced axle, own wt has strengthened again unsettledly to be taken out axle operation and makes bending shaft distortion, also exists in addition axle tension force little, easily skids and air bag gas leakage, swollen distortion problem such as do not bounce back.
The deficiency existing in order to solve above two kinds of structure swelling shafts, in prior art, there is the not mechanical type expanding shaft of roll coil of strip core end key, for example: the patent No. is: 200620030689.3 utility models " High-accuracy Balling and Expanding Axle ", it adopts the typical structure of inclined-plane to inclined-plane, the tension force of this class formation axle, depend on the conformability that slotted hole axial dimension is closed in every group of ramp blocks stub end size and the every assembly that will install, each ramp blocks of guarantee can participate in outer swollen, this makes tooling cost high, ramp blocks itself does not have retraction function in addition, owing to there is tolerance clearance in expansion core and elongated main shaft, therefore swollen shaft runout has affected the raising of axle precision.This class inclined-plane mechanical expansion shaft to ramp structure, because the radial dimension of inclined-plane expansion block is large, has compressed the design space of the center diameter of axle, has affected the raising of the flexural strength of this class formation swelling shaft.
Outer cone expansion core in air bag in air-expanding shaft and mechanical type swelling shaft has a common ground above: be exactly swollen of execution above them and inner cone inclined-plane expansion block be metal, or manufactured by elastomeric material.In order to obtain larger tension force, in manufacture, will increase axial number, piece number to strengthen by the frictional area of swollen volume core bore, and this is conflicting with the intensity that increases swelling shaft.For by the internal diameter of swollen volume core pipe, they are that whoever does not destroy the radial friction contact of whose degree of finish face-to-face, are the swellings without foundation and self-lock ability.Under the pulling of coiling tension, occur skidding, coiled material radial runout, plate face neglect and tightly neglect pine, end face staggered floor, speed and put forward the phenomenon of not coming up and happen occasionally.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: a kind of gas control C shape circle mechanical type expanding shaft in processing that batches that is specially adapted to extra heavy pipe core conventional in aluminium strip, paper tinsel processing, wide format is provided, rolls up core pipe and occur the phenomenon of skidding while having avoided bundling.
The technical solution adopted for the present invention to solve the technical problems is: described gas control C shape circle mechanical type expanding shaft, it is characterized in that: comprise spindle tube and the transmission side spindle nose that is arranged on spindle tube two ends, active side spindle nose, spindle tube is set with cone wedge pipe group and meta pipe outward, meta pipe is fixed on the middle part of spindle tube, cone wedge pipe group symmetry is arranged on the both sides of meta pipe, cone wedge pipe group is formed by connecting in turn by least two cone wedge pipes, the front end of cone wedge pipe is conical head, conical head is towards meta pipe, on conical head, cover has C shape circle, outermost cone wedge pipe is connected with spindle tube by connecting device, outermost cone wedge pipe connects pneumatic pushing mechanism.
During use, can volume core pipe be put at the either side of expanding shaft, then expanding shaft is hung on reel, by pneumatic pushing mechanism, promoted outermost cone wedge pipe and bored wedge Guan Zuxiang meta pipe direction and move, the C shape circle being enclosed within on conical head has stopping of end face above, and internal diameter has the promotion of conical head, and thus one group promote one group, impel the outer swollen of C shape circle, thereby complete fixing between spindle tube and volume core pipe, can carry out bundling work.After bundling, by air operated control reverse push mantle wedge pipe group again, make it depart from meta pipe, because C shape circle has retraction voluntarily, thereby make C shape circle external diameter depart from the internal diameter of volume core pipe.
Described pneumatic pushing mechanism comprises piston rod, cylinder and charge valve, in spindle tube, be provided with a left side, the piston rod of right two symmetries, the outer end of piston rod is fixedly connected with connecting device, the every piston rod at least one group of cylinder that be installed in series from outside to inside, every group of cylinder is comprised of two cylinder end caps and the cylinder piston between two cylinder end caps, cylinder end cap is fixedly connected with spindle tube, cylinder piston is fixed by elastic spring and piston rod, cylinder end cap and cylinder piston and piston rod, the contact position of spindle tube is all provided with seal ring, charge valve is arranged in the endoporus of transmission side spindle nose, corresponding charge valve is provided with two pores in transmission side spindle nose, two pores respectively with spindle tube tube wall in free air diffuser, exhaust passage communicates, free air diffuser, exhaust passage communicates with the chamber, two ends of cylinder inner casing piston respectively, spindle tube middle part is provided with free vent.Spindle tube itself is axis, is also cylinder barrel.
Described connecting device is the straight pin that runs through outermost cone wedge pipe, and corresponding circle pin is provided with strip hole on spindle tube.
In described cone wedge pipe, be provided with screw auxiliary connection groove, two adjacent cone wedge pipes are connected by screw the secondary screw auxiliary connection groove that passes and link together.In work, the wedge pipe unification of respectively boring of boring wedge pipe group is retreated, and retraction and the swelling of with the shortest Stroke Control C shape, enclosing, work efficiency improved.
Described C shape circle one end is prolonged circle center position and is extended with a circle key, correspondence ring head key offers a circle keyway and on spindle tube, has at least one long keyway on the conical head of cone wedge pipe, a circle key of C shape circle is arranged in the long keyway of spindle tube through a circle keyway, make to bore wedge pipe and C shape circle on spindle tube, can only move vertically and can not rotate.Length and the quantity of cone wedge pipe, determine according to the length of minimum winding width and expanding shaft in product.
Distance between a described circle key and other end circle tail is 10-50mm, on the external diameter surface of C shape circle, be provided with Non-slip material, C shape ring cross-section is rounded, or on circle, has at least one plane, the external diameter of C type circle is less than the pipe external diameter of cone wedge pipe, to store the retraction elasticity dynamics of self.
Described Non-slip material is comprised of a plurality of continuous semi arches or concave station, and the spacing between adjacent semi arch or concave station is 0.1-10mm.By continuous semi arch or concave station, on C shape circle outside face, formed numerous anti-skidding swords.Just in time contrary by the method for increase frictional area with the mechanical expansion shaft on existing air bag swelling shaft and inclined-plane, the present invention is by changing the size of C shape circle external diameter, make anti-skidding sword and volume core pipe close contact, inclined-plane by conical head has produced secondary mechanical reinforcement to C shape circle, to produce several tons of above clamping forces, under equal propelling thrust, the horizontal clamping level of C shape circle is much more firm than large-area friction swelling.When practical application, Non-slip material can also adopt other shape except above-mentioned shape.
On the conical head of described cone wedge pipe front end, evenly have a plurality of axial grooves, the rear end of cone wedge pipe is provided with the limit dais corresponding with conical head.Its object, is for an elastomeric space being set to the C shape circle be enclosed within on conical head, the impact in order to the difference in internal diameters that overcomes volume core pipe on clamping force, make volume core pipe adjacent and that internal diameter gap there are differences also can swelling, clip.In addition, cone wedge pipe and spindle tube tolerance clearance can be eliminated again in this elastomeric space, thus raising expanding shaft batch precision and reliability.
Described charge valve is arranged in the mounting hole of transmission side spindle nose by circlip.Between the nose end of transmission side spindle nose and spindle tube free air diffuser, exhaust passage, be provided with the flat rubber cushion sealing of cambered surface.Wherein, described charge valve is two-position three way charge valve, comprise inflation spool, valve core base, sealing column and spool spring, sealing column is arranged in inflation spool by spool spring and is positioned at the central hole of inflation spool, inflation spool and valve core base sealing are installed as one, valve core base is provided with block hole, block hole is communicated with two pores in inflation spool annular seal space and transmission side spindle nose, the plane that valve core base contacts with transmission side spindle nose is provided with air discharge duct and packing groove, in packing groove, be provided with ring seal plain cushion, ring seal plain cushion is close to pore by valve body spring.Two pores are connected with free air diffuser, the exhaust passage of spindle tube respectively, thereby realize, fill, exit with the centre hole with inflation spool, make to fill, exit and be fast, compare more convenient to operate, quick with air sac breathing axle.
The length of described cone wedge pipe and with the configuration quantity of C shape circle combination, roll up minimum fabric width degree in core pipe and the length of expanding shaft is determined according to product.
Except above-mentioned points, in this expanding shaft, the number of cylinder number of pistons, the size of thrust, winding diameter, weight and the compressed-air actuated size that batch middle carrying according to expanding shaft are determined; Cylinder piston and cylinder end cap in spindle tube preferentially adopt engineering plastics processing and manufacturing, thereby make the weight of this expanding shaft, are only 2/3 of air bag swelling shafts, and the alleviating of axle weight is conducive to reduce takes out the aerial bending of axle suspension, thereby is conducive to the maintenance of axle precision.The both ends of the surface of meta pipe are symmetrically arranged with same limit dais, have screw via hole, thereby fix by screw and spindle tube in the middle of meta pipe.On spindle tube, also meta pipe can be set, and to the other end, directly promote to bore the cone wedge pipe of wedge Guan Zuzhong by one end of spindle tube, for obtaining larger tension force, batch larger coiled material, also air operated control can be changed into fluid control.
The beneficial effect that the present invention has is:
1, this gas control C shape circle mechanical type expanding shaft is rational in infrastructure, by increase cylinder piston in spindle tube, can obtain larger propelling thrust, realizes one-time mechanical reinforcement;
2, on the conical head of cone wedge pipe, C shape circle is set, the clamping structure of this inclined-plane to circle, because radial dimension is little, elongated spindle tube external diameter is large, make the bending resistance torsion stiffness of whole expanding shaft large, the unique design of the C shape circle in this expanding shaft, can produce several tons of above clamping forces, realize secondary mechanical reinforcement, can also repair by the out of roundness of swollen volume core pipe internal-and external diameter simultaneously;
3, the design of conical head, axial groove and internal diameter platform in cone wedge pipe, can eliminate the tolerance clearance of cone wedge pipe and spindle tube, can balanced respectively roll up the impact of the difference in internal diameters of core pipe on clamping force simultaneously, thus raising expanding shaft batch precision and reliability;
4, the cylinder piston in spindle tube and cylinder end cap adopt double containment, have improved the reliability of sealing, the occasion that applicable anticyclonic pressure, long-time pressurize are used;
5, the charge, exhaust of expanding shaft is same with a hole, with at one end, and charge, exhaust is faster than air bag type expanded shaft, and the time is short, easy to operate;
6, design of the present invention and processing, lays particular emphasis on gauge members such as using spring, and be processed as master with lathe, grinding machine, so efficiency is high, precision is high, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the block diagram of C shape circle in the present invention;
Fig. 3 is the sectional axonometric drawing of boring wedge pipe in the present invention;
Fig. 4 is the block diagram of spindle tube in the present invention;
Fig. 5 is the sectional axonometric drawing of outermost cone wedge pipe in the present invention;
Fig. 6 is the partial enlarged drawing at I position in Fig. 1;
Fig. 7 is the sectional axonometric drawing of inflating spool in Fig. 6;
Fig. 8 is the block diagram of valve core base in Fig. 6.
In figure: 1, transmission side spindle nose; 1.1, pore; 1.2, pore; 2, spindle nose key; 3, outermost cone wedge pipe; 3.1, front end face; 3.2, internal diameter platform; 3.3, axial groove; 3.4, a circle keyway; 3.5, screw auxiliary connection groove; 3.6, conical head; 3.7, pipe external diameter; 3.8, adjusting hole; 3.9, cylinder pin hole; 3.10, bore; 3.11, undercut; 4, straight pin; 5, strip hole; 6, screw auxiliary connection; 7, C shape circle; 7.1, semi arch; 7.2, anti-skidding sword; 7.3, a circle key; 7.4, circle tail; 8, cone wedge pipe; 8.1, front end face; 8.2, internal diameter platform; 8.3, axial groove; 8.4, a circle keyway; 8.5, screw auxiliary connection groove; 8.6, conical head; 8.7, pipe external diameter; 8.8, adjusting hole; 8.9, bore; 8.10, limit dais; 8.11, aft end face; 8.12, undercut; 9, spindle tube; 9.1, inwall; 9.2, free air diffuser; 9.3, exhaust passage; 9.4, inner-diameter end keyway; 9.5, spindle tube external diameter; 9.6, strip hole; 9.7, cylinder end cap fixed orifice; 9.8, long keyway; 9.9, free vent; 10, meta pipe; 11, volume core pipe; 12, active side spindle nose; 13, screw; 14, piston rod; 15, cylinder end cap; 16, elastic spring; 17, cylinder piston; 18, seal ring; 19, the flat rubber cushion of cambered surface; 20, charge valve; 20.1, valve core base; 20.1.1, air discharge duct; 20.1.2, packing groove; 20.1.3, block hole; 20.2, valve body spring; 20.3, circlip; 20.4, inflation spool; 20.4.1, guiding surface; 20.4.2, turn to groove; 20.4.3, centre hole; 20.4.4, annular seal space; 20.5, sealing column; 20.6, spool spring; 20.7, ring seal plain cushion.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, gas control C shape circle mechanical type expanding shaft, comprise spindle tube 9, spindle tube 9 two ends are separately installed with transmission side spindle nose 1 by spindle nose key 2, active side spindle nose 12, outer cone wedge pipe group and the meta pipe 10 of being set with of spindle tube 9, meta pipe 10 is fixed on the middle part of spindle tube 9, the both ends of the surface of meta pipe 10 are symmetrically arranged with same limit dais, there is screw via hole centre, cone wedge pipe group symmetry is arranged on the both sides of meta pipe 10, cone wedge pipe group is formed by connecting in turn by least two cone wedge pipes 8, the front end of cone wedge pipe 8 is conical head, conical head is towards meta pipe 10, on conical head, cover has C shape circle 7, straight pin 4 runs through outermost cone wedge pipe 3 and is connected with spindle tube 9 and pneumatic pushing mechanism.
During use, can volume core pipe be put at the either side of expanding shaft, then expanding shaft is hung on reel, by pneumatic pushing mechanism, promote outermost cone wedge pipe 3 and bore wedge Guan Zuxiang meta pipe 10 directions and move, make C shape enclose 7 swellings, thereby complete fixing between spindle tube 9 and volume core pipe 11, can carry out bundling work.After bundling, then reverse push mantle wedge pipe group, make it depart from meta pipe 9, because the external diameter of C shape circle 7 is less than the pipe external diameter 8.7 of cone wedge pipe, itself there is the characteristic of retraction voluntarily, thereby make C shape enclose the internal diameter that 7 external diameters have departed from volume core pipe 11.
Wherein:
Pneumatic pushing mechanism comprises piston rod 14, cylinder and charge valve 20, in spindle tube 9, be provided with a left side, the piston rod 14 of right two symmetries, the outer end of piston rod 14 is fixedly connected with straight pin 4 by screw 13, the every piston rod 14 at least one group of cylinder that be installed in series from outside to inside, every group of cylinder is comprised of two cylinder end caps 15 and the cylinder piston 17 between two cylinder end caps 15, cylinder end cap 15 is fixedly connected with spindle tube 9 by fastener, cylinder piston 17 is fixing with piston rod 14 by elastic spring 16, cylinder end cap 15 and cylinder piston 17 and piston rod 14, the contact position of spindle tube 9 is all provided with seal ring 18, charge valve is arranged in the endoporus of transmission side spindle nose 1, corresponding charge valve is provided with two pores 1.1 in transmission side spindle nose 1, 1.2(as shown in Figure 6), pore 1.1, pore 1.2 respectively with spindle tube 9 tube walls in free air diffuser 9.2, exhaust passage 9.3 communicates, free air diffuser 9.2, exhaust passage 9.3 communicates with the chamber, two ends of spindle tube 9 inner casing pistons respectively, spindle tube middle part is provided with free vent 9.9.Wherein, connecting device is the straight pin 4 that runs through outermost cone wedge pipe 3, and corresponding circle pin 4 is provided with strip hole 5 on spindle tube 9.Wherein, spindle tube 9 itself is axis, is also cylinder barrel.
C shape coil structures as shown in Figure 2, prolong circle center position and be extended with a circle key 7.3 by C shape circle one end, and the distance between a circle key 7.3 and other end circle tail 7.4 is 10-50mm, on the external diameter surface of C shape circle, is provided with Non-slip material.Wherein, C shape ring cross-section is rounded, or on circle, has at least one plane, and the external diameter of C type circle is less than the pipe external diameter 8.7 of cone wedge pipe 8, when the swelling of C shape circle, can further effectively increase and roll up the clamping force between core pipe.Wherein, Non-slip material is comprised of a plurality of continuous semi arches or concave station, and the spacing between adjacent semi arch or concave station is 0.1-10mm, adopts semi arch 7.1 in the present embodiment, by continuous semi arch 7.1, on C shape circle outside face, has formed numerous anti-skidding swords 7.2.Just in time contrary by the method for increase frictional area with the mechanical expansion shaft on existing air bag swelling shaft and inclined-plane, the present invention is by changing the size of C shape circle external diameter, make anti-skidding sword 7.2 and volume core pipe 11 close contacts, inclined-plane by conical head 8.6 has produced secondary mechanical reinforcement to C shape circle, under equal propelling thrust, the horizontal clamping level of C shape circle is much more firm than large-area friction swelling.Non-slip material can also adopt other shape except above-mentioned shape.
Cone wedge tubular construction as shown in Figure 3, in cone wedge pipe 8, the front end face of conical head 8.6 is towards meta pipe 10, on the conical head 8.6 of cone wedge pipe 8, offer axial groove 8.3 and a circle keyway 8.4, a circle key 7.3 of C shape circle 7 is inserted in and is arranged in the long keyway 9.8 that spindle tube 9 offers through a circle keyway 8.4 from front end face 8.1, in cone wedge pipe 8, be provided with screw auxiliary connection groove 8.5, screw auxiliary connection 6, through a circle key 7.3 of C shape circle, the neutral gear between circle tail 7.4, is connected by screw secondary groove 8.5 two adjacent cone wedge pipes 8 is linked together, in order to make elastomeric supporting of radially formation of conical head 8.6, on conical head 8.6 madial walls, be provided with internal diameter platform 8.2, the impact while C shape being enclosed to 7 swelling in order to overcome the difference in internal diameters of volume core pipe 11, in order to stop to 7 one, the C shape circle being sleeved on conical head 8.6, impel it outer swollen, the aft end face 8.11 of corresponding cone wedge pipe 8 is provided with limit dais 8.10 on madial wall in its back-end, the degree of depth between aft end face 8.11 and limit dais 8.10 has formed C shape and has enclosed the stroke of 7 breathing, limit dais 8.10 madial walls have formed one and for the spindle tube external diameter 9.5 with spindle tube 9, have coordinated the bore 8.9 of installing, for screw auxiliary connection 6 easy to use when connecting, corresponding screw auxiliary connection groove 8.5 offers adjusting hole 8.8 and offer undercut 8.12 on cone wedge pipe 8 madial wall on cone wedge pipe 8.During use, be connected by screw secondary 6 two adjacent cone wedge pipes are linked together, can make the wedge pipe unification of respectively boring of boring wedge pipe group retreat, and retraction and the swelling of with the shortest Stroke Control C shape, enclosing, work efficiency improved.By axial groove 8.3 and internal diameter platform 8.2, in promoting clamping process, can eliminate the tolerance clearance of cone wedge pipe 8 and spindle tube 9, simultaneously also balanced respectively roll up the impact of the difference in internal diameters of core pipe 11 on clamping force, that has also improved expanding shaft simultaneously batches precision and reliability.Wherein, the cone angle of the conical head 8.6 of cone wedge pipe 8 is greater than 27 °.
Outermost cone wedge tubular construction as shown in Figure 5, also comprise front end face 3.1, internal diameter platform 3.2, axial groove 3.3, a circle keyway 3.4, screw auxiliary connection groove 3.5, conical head 3.6, adjusting hole 3.8 and undercut 3.11, different from other cone wedge pipes is, on outermost cone wedge pipe, be provided with cylinder pin hole 3.9, and pipe external diameter 3.7 is less than the internal diameter of volume core pipe 11 equally, and bore 3.10 coordinates installation with the spindle tube external diameter 9.5 of spindle tube 9.
Spindle tube structure as shown in Figure 4, inwall 9.1 two ends of spindle tube 9 are provided with the inner-diameter end keyway 9.4 that spindle nose key 2 use are installed, in the tube wall of spindle tube 9, be provided with free air diffuser 9.2 and exhaust passage 9.3, on spindle tube, be also provided with at least one long keyway 9.8 that coordinates with a C shape circle circle key 7.3, coordinate the strip hole 9.6 of radial symmetry also with straight pin 4 and fixedly mount the cylinder end cap fixed orifice 9.7 that cylinder end cap is used, except above-mentioned points, on spindle tube, be also provided with the free vent 9.9 that spindle tube inner chamber communicates with ambient atmosphere.
Charge valve 20 is two-position three way charge valves, as shown in Figure 6, comprise inflation spool 20.4, valve core base 20.1, sealing column 20.5 and spool spring 20.6, sealing column 20.5 is arranged in inflation spool 20.4 by spool spring 20.6 and is positioned at the centre hole 20.4.3 place of inflation spool 20.4, inflation spool 20.4 is installed as one with valve core base 20.1 sealings, valve core base 20.1 is provided with block hole 20.1.3, block hole 20.1.3 is communicated with two pores 1.1 in inflation spool annular seal space 20.4.4 and transmission side spindle nose 1, 1.2, these, two pores are induction opening, one is deflation hole, the plane that valve core base 20.1 contacts with transmission side spindle nose 1 is provided with air discharge duct 20.1.1 and packing groove 20.1.2, in packing groove 20.1.2, be provided with ring seal plain cushion 20.7, ring seal plain cushion 20.7 is close to pore by valve body spring 20.2, whole charge valve is arranged in the mounting hole of transmission side spindle nose 1 by circlip 20.3, at transmission side spindle nose 1 and spindle tube 9 free air diffusers, between the nose end of exhaust passage, be provided with two flat rubber cushion 19 sealings of cambered surface, two pores respectively with the free air diffuser of spindle tube, exhaust passage connects, thereby realize, fill, venting is with the centre hole with inflation spool, make to fill, venting is fast, compare more convenient to operate with air sac breathing axle, fast.The inflation spool of charge valve is provided with guiding surface 20.4.1, turns to groove 20.4.2, centre hole 20.4.3 and annular seal space 20.4.4, as shown in Figure 7; Valve core base is provided with air discharge duct 20.1.1, packing groove 20.1.2 and block hole 20.1.3, and ring seal plain cushion 20.7 is contained in packing groove 20.1.2, as shown in Figure 8.
The length of described cone wedge pipe 8 and with the configuration quantity of C shape circle 13 combinations, roll up minimum fabric width degree in core pipe 11 and the length of expanding shaft is determined according to product.
Except above-mentioned points, in this expanding shaft, the number of cylinder piston 17 quantity, the size of thrust, winding diameter, weight and the compressed-air actuated size that batch middle carrying according to expanding shaft are determined; Cylinder piston 17 in spindle tube 9 and cylinder end cap 15 are preferentially used engineering plastics processing and manufacturing, thereby make the weight of this expanding shaft, are only 2/3 of air bag swelling shafts, and the alleviating of axle weight is conducive to reduce takes out the aerial bending of axle suspension, thereby is conducive to the maintenance of axle precision.On spindle tube 9, also meta pipe 10 can be set, and to the other end, directly promote to bore the cone wedge pipe 8 of wedge Guan Zuzhong by one end of spindle tube 9, for obtaining larger tension force, batch larger coiled material, also air operated control can be changed into fluid control.
Use procedure and the principle of the present embodiment are as follows:
(1) in the time of need to working when expanding shaft needs swelling volume core pipe 11:
As shown in Figure 1 be the retracted state of C shape circle mechanical type expanding shaft, volume core pipe 11, through on expanding shaft, then is put into expanding shaft between the clamping conehead of reel, core pipe 11 is rolled up in left and right adjustment, and its both sides end face is alignd with the foil end face that will batch.
The inflation nozzle of charge gun, the guiding surface 20.4.1 of the inflation spool 20.4 by two position three-way valve, lean the centre hole 20.4.3 place in inflation, the projection of charge gun both sides is stuck in and turns in groove 20.4.2 simultaneously, 90 ° are rotated inflation spool 20.4 and pull charge gun, air nozzle penetrates the compressed air stream that a length is controlled by operator, air-flow is by the centre hole 20.4.3 of inflation spool 20.4, push sealing column 20.5 open and enter in annular seal space 20.4.4, and by block hole 20.1.3, ring seal plain cushion 20.7, enter in the free air diffuser 9.2 of spindle tube 9.Air-flow enters into the left chamber of expanding shaft left side cylinder piston and the right chamber of right side cylinder piston by pore road 9.2.
Under the drive of expanding shaft both sides cylinder piston 17, both sides piston rod 14 promotes outermost cone wedge pipe 3 by straight pin 4, makes conical head 8.6 in a plurality of cone wedge pipes 8 push meta pipe 10 places of expanding shaft to.The C shape circle 7 that one circle encloses, under the promotion of conical head 3.6,8.6, tens on each C shape circle 7 is along sword anti-skidding sword 7.2, along the axis propelling of volume core pipe 11, makes C shape enclose 7 external diameters and increases, and is finally that chisel edge is laterally clamped on the internal diameter of volume core pipe 11.
Meanwhile, the right chamber of expanding shaft left side cylinder piston and the left chamber gas of opposite side cylinder piston, entered in two-position three way charge valve 20 valve core bases 20.1 air discharge duct 20.1.1 below by the exhaust passage 9.3 of spindle tube 9, is discharged in atmosphere and goes.
(2) when expanding shaft needs exhaust, when expanding shaft is released from volume core pipe 11:
After having batched, 90 ° are rotated inflation spool 20.4 in the opposite direction, and pull charge gun, air nozzle penetrates the compressed air stream that a length is controlled by operator, the same with swelling air-flow above, also be by two-position three way charge valve, but changed individual direction, entered in exhaust passage 9.3, air-flow enters into the right chamber of swelling shaft left side cylinder piston and the left chamber of right side cylinder piston simultaneously, two outermost cone wedge pipes 3 of piston rod 14 last drive, and by each screw auxiliary connection 6, drive each cone wedge pipe 8 to retreat to the left and right sides of axle.
Meanwhile, the left chamber of expanding shaft left side cylinder piston, the gas stopping in the right chamber of expanding shaft right side cylinder piston is discharged in atmosphere and goes in Cong Yuan road in the valve core base air discharge duct 20.1.1 of the two-position three way charge valve 20 of Fig. 6.
Because conical head 8.6 is drawn back, make C shape circle 7 depart from the promotion of conical head, the elasticity of itself bounces back voluntarily, has departed from the internal diameter of volume core pipe 11, and operator can, in any one end of expanding shaft, in the volume core pipe 11 with material volume, be released expanding shaft.
The outside promotion of two piston rods 14, overcomes the weight of expanding shaft self, pulls respectively to bore wedge pipe and retreat, needed strength is very little, in the situation that multi-cylinder piston combines, use less a cylinder piston to participate in retraction, can save pressurized air, and improve the retraction speed of expanding shaft.
Claims (7)
1. a gas control C shape is enclosed mechanical type expanding shaft, it is characterized in that: comprise spindle tube (9) and be arranged on the transmission side spindle nose (1) at spindle tube (9) two ends, active side spindle nose (12), outer cone wedge pipe group and the meta pipe (10) of being set with of spindle tube (9), meta pipe (10) is fixed on the middle part of spindle tube (9), cone wedge pipe group symmetry is arranged on the both sides of meta pipe (10), cone wedge pipe group is formed by connecting in turn by least two cone wedge pipes (8), the front end of cone wedge pipe (8) is conical head (8.6), conical head (8.6) is towards meta pipe (10), the upper cover of conical head (8.6) has C shape circle (7), outermost cone wedge pipe (3) is connected with spindle tube (9) by connecting device, outermost cone wedge pipe (3) connects pneumatic pushing mechanism,
Described C shape circle (7) one end is prolonged circle center position and is extended with a circle key (7.3), correspondence ring head key (7.3) offers a circle keyway (8.4) and on spindle tube (9), has at least one long keyway (9.8) on the conical head (8.6) of cone wedge pipe (8), and a circle key (7.3) of C shape circle is arranged in the long keyway (9.8) of spindle tube through a circle keyway (8.4);
Distance between a described circle key (7.3) and other end circle tail (7.4) is 10-50mm;
Described pneumatic pushing mechanism comprises piston rod (14), cylinder and charge valve, spindle tube is provided with a left side in (9), the piston rod (14) of right two symmetries, the outer end of piston rod (14) is fixedly connected with connecting device, every piston rod (14) at least one group of cylinder that be installed in series from outside to inside, every group of cylinder is comprised of two cylinder end caps (15) and the cylinder piston (17) that is positioned between two cylinder end caps (15), cylinder end cap (15) is fixedly connected with spindle tube (9), cylinder piston (17) is fixing by elastic spring (16) and piston rod (14), cylinder end cap (15) and cylinder piston (17) and piston rod (14), the contact position of spindle tube (9) is all provided with seal ring (18), charge valve (20) is arranged in the endoporus of transmission side spindle nose (1), corresponding charge valve (20) is provided with two pores (1.1) in transmission side spindle nose (1), (1.2), two pores (1.1), (1.2) respectively with spindle tube (9) tube wall in free air diffuser (9.2), exhaust passage (9.3) communicates, free air diffuser (9.2), exhaust passage (9.3) communicates with the chamber, two ends of cylinder inner casing piston (17) respectively, spindle tube (9) middle part is provided with free vent (9.9),
Described charge valve (20) is two-position three way charge valve, comprise inflation spool (20.4), valve core base (20.1), sealing column (20.5) and spool spring (20.6), sealing column (20.5) is arranged in inflation spool (20.4) by spool spring (20.6) and the centre hole (20.4.3) that is positioned at inflation spool (20.4) is located, inflation spool (20.4) is installed as one with valve core base (20.1) sealing, valve core base (20.1) is provided with block hole (20.1.3), block hole (20.1.3) is communicated with two pores (1.1) (1.2) in inflation spool annular seal space (20.4.4) and transmission side spindle nose (1), the plane that valve core base (20.1) contacts with transmission side spindle nose (1) is provided with air discharge duct (20.1.1) and packing groove (20.1.2), in packing groove (20.1.2), be provided with ring seal plain cushion (20.7), ring seal plain cushion (20.7) is close to pore by valve body spring (20.2).
2. gas control C shape according to claim 1 is enclosed mechanical type expanding shaft, it is characterized in that: described connecting device is the straight pin (4) that runs through outermost cone wedge pipe (8), and corresponding circle pin (4) is provided with strip hole (9.6) on spindle tube (9).
3. gas control C shape according to claim 1 is enclosed mechanical type expanding shaft, it is characterized in that: in described cone wedge pipe (8), be provided with screw auxiliary connection groove (3.5), adjacent two cone wedge pipes (8) are connected by screw pair (6) and link together through screw auxiliary connection groove (3.5).
4. gas control C shape circle mechanical type expanding shaft according to claim 1, is characterized in that: on the external diameter surface of C shape circle (7), be provided with Non-slip material.
5. gas control C shape circle mechanical type expanding shaft according to claim 4, is characterized in that: described Non-slip material is comprised of a plurality of continuous semi arches or concave station, and the spacing between adjacent semi arch or concave station is 0.1-10mm.
6. gas control C shape according to claim 1 is enclosed mechanical type expanding shaft, it is characterized in that: on the conical head (8.6) of described cone wedge pipe (8) front end, evenly have a plurality of axial grooves (8.3), on the inwall of conical head (8.6), be provided with an internal diameter platform (8.2), the rear end of cone wedge pipe (8) is provided with limit dais (8.10).
7. gas control C shape circle mechanical type expanding shaft according to claim 1, is characterized in that: described charge valve (20) is arranged in the mounting hole of transmission side spindle nose (1) by circlip (20.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268830.3A CN102745556B (en) | 2012-07-31 | 2012-07-31 | Mechanical expansion shaft of air control C-shaped rings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268830.3A CN102745556B (en) | 2012-07-31 | 2012-07-31 | Mechanical expansion shaft of air control C-shaped rings |
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| Publication Number | Publication Date |
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| CN102745556A CN102745556A (en) | 2012-10-24 |
| CN102745556B true CN102745556B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210268830.3A Expired - Fee Related CN102745556B (en) | 2012-07-31 | 2012-07-31 | Mechanical expansion shaft of air control C-shaped rings |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102291992B1 (en) * | 2014-01-22 | 2021-08-19 | 가부시키가이샤 토신 | Winding shaft of sheet, winding method of sheet with a low tension, and air tight structure of piston used for such the winding method |
| CN103738757B (en) * | 2014-01-28 | 2015-12-16 | 江阴市申港电讯器材厂 | Air expansion sleeve |
| KR102248117B1 (en) * | 2020-09-23 | 2021-05-04 | 일성기계공업 주식회사 | Friction shaft structure |
| CN112722988B (en) * | 2021-01-06 | 2022-11-15 | 国网甘肃省电力公司金昌供电公司 | Linkage shaft for cable reel and cable unfolding lifting device |
| CN112607499B (en) * | 2021-01-06 | 2022-11-22 | 国网黑龙江省电力有限公司大庆供电公司 | Rotating shaft with braking function and pay-off device with rotating shaft |
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| CN2734703Y (en) * | 2004-10-29 | 2005-10-19 | 西南铝业（集团）有限责任公司 | Aluminium foil cutting and winding expand axle |
| KR20110038958A (en) * | 2009-10-09 | 2011-04-15 | 두산인프라코어 주식회사 | Guide bushing for lathe cutting |
| CN202729475U (en) * | 2012-07-31 | 2013-02-13 | 柳燕明 | Air control C-shaped circle mechanical expansion and shrink shaft |
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- 2012-07-31 CN CN201210268830.3A patent/CN102745556B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2560614Y (en) * | 2002-07-12 | 2003-07-16 | 宋伯祥 | Spliced expanding block pneuamtic friction taking-up axle |
| CN2734703Y (en) * | 2004-10-29 | 2005-10-19 | 西南铝业（集团）有限责任公司 | Aluminium foil cutting and winding expand axle |
| KR20110038958A (en) * | 2009-10-09 | 2011-04-15 | 두산인프라코어 주식회사 | Guide bushing for lathe cutting |
| CN202729475U (en) * | 2012-07-31 | 2013-02-13 | 柳燕明 | Air control C-shaped circle mechanical expansion and shrink shaft |
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| CN102745556A (en) | 2012-10-24 |
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Address after: 072750 Hebei Zhuozhou Huabei Aluminum Co., Ltd. retirement Office Applicant after: Liu Yanming Address before: 301, room 1, unit 215, building No. 136, South Gate Street, Zhuozhou, Baoding, Hebei 072750, China Applicant before: Liu Yanming |
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Granted publication date: 20140924 Termination date: 20200731 |