CN202729401U

CN202729401U - C-shaped ring mechanical expanding shaft

Info

Publication number: CN202729401U
Application number: CN 201220375292
Authority: CN
Inventors: 柳燕明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-02-13
Anticipated expiration: 2022-07-31

Abstract

The utility model discloses a C-shaped ring mechanical expanding shaft which is used for metal and nonmetal foil/film shape coiled materials and suitable for process of aluminum belts and aluminum foil. An inclined surface-to-circle novel structure which has self-retraction capability, and has a thin blade which is capable of being cut in deeply is provided, in allusion to solve the problems of no foundation and no self-locking in friction caused by the execution expansion strip and the inclined surface expansion block of an existing air bag type or inclined surface-to-inclined surface type mechanical expanding shaft, and the problems of skidding, and low accuracy and low structural strength of the shaft caused thereby. The C-shaped ring mechanical expanding shaft takes the place of the typical structure of inclined surface to inclined surface, and comprises a cylindrical shaft and a plurality of tapered wedge tubes sleeved on the cylindrical shaft. A push-pull nut is turned so that the C-shaped ring having a plurality of blades sleeved on the conical surface is expanded outwards so as to clamp a coiled core tube. The inclined surface-to-circle structure is small in radial dimension, so that the strength of the expansion shaft is improved; and due to vanishing of the gap between the circle and the shaft in clamping, radial jumping errors of the shaft are reduced. Besides, the C-shaped ring mechanical expanding shaft is suitable for coiling process for thin tube cores, large breadths and no air pressure sources.

Description

C shape circle mechanical type expanding shaft

Technical field

The utility model relates to a kind of C shape circle mechanical type expanding shaft, belongs 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 large wide cut coiled material bundling the program of the finished product coiled material of different in width to be: will roll up first the core pipe and be through on the winding off spindle, then with the swelling shaft of different swelling modes and disalignment header structure, be clamped in and finish uncoiling between the folder axle of reel rotation and batch.

The winding off spindle that three kinds of versions are arranged at present, a kind of is that volume core pipe is through on the solid axle that does not have the breathing function, or with volume core end surfaces key, clamps with nut.The method with volume core pipe tolerance clearance of dwindling this solid axle owing to utilize improves batches precision, the tooling cost of therefore rolling up the core pipe is high, it is contradiction that the gap is reduced with smoking axle light, it is usually used in carefully rolling up batching in the 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 the air bag swelling shaft that the breathing function is arranged during tradition is used, its advantage is that volume core pipe is adjusted centering conveniently, and weak point is because the compressibility of gas causes the coiled material radial runout in batching, thereby affects the raising of precision.Spindle tube circumference commonly used 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 the bending shaft distortion, also exists in addition the axle tension force little, easily skids and air bag gas leakage, the swollen bar distortion problem such as do not bounce back.

The deficiency that exists in order to solve above two kinds of structure swelling shafts, the not mechanical type expanding shaft of roll coil of strip core end key has appearred in the technology of having powerful connections, for example: the patent No. is: 200620030689.3 utility models " High-accuracy Balling and Expanding Axle ", it adopts the inclined-plane to the typical structure on inclined-plane, the tension force of this class formation axle, depend on the conformability that the 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 both participate in outer swollen, this is so that tooling cost is high, ramp blocks itself does not have retraction function in addition, because there are tolerance clearance in expansion core and elongated main shaft, so the radial runout of swelling shaft has affected the raising of axle precision.This class inclined-plane is to the mechanical expansion shaft of 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 the top air-expanding shaft and the mechanical type swelling shaft has a common ground: be exactly the swollen bar of execution and inner cone inclined-plane expansion block above them be metal, or made by elastomeric material.In order to obtain larger tension force, will increase axial number, piece number in the manufacturing strengthening by the frictional area of swollen volume core bore, and this and increase the mutual contradiction of intensity of swelling shaft.For the internal diameter of the volume core pipe that expanded, 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.

The utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and be specially adapted to tubule core commonly used in the processing of aluminium strip, paper tinsel, wide format, without the C shape circle mechanical type expanding shaft in the processing of batching of pneumatics source of the gas, the phenomenon that skidding appears in volume core pipe when having avoided bundling.

C shape circle mechanical type expanding shaft described in the utility model, comprise cylinder axis, it is characterized in that: push-tight mechanism, cone wedge pipe group and detent mechanism are installed on the cylinder axis from left to right successively, cone wedge pipe group is comprised of a plurality of cone wedge pipes that are arranged side by side, between cone wedge pipe and the push-tight mechanism, between adjacent two cone wedge pipes and C shape all is installed between cone wedge pipe and the detent mechanism encloses.

During use, can be from the left side of expanding shaft, also can transfer to expanding ring to penetrate volume core pipe and volume core tube head from the right side of expanding shaft, then expanding shaft is installed on the reel, switching push-tight mechanism moves to the right, under the effect of cooperatively interacting of push-tight mechanism, cone wedge pipe group and detent mechanism, there is stopping of end face the C shape circle front that is enclosed within on the conical head, internal diameter has the promotion of conical head, and thus one group promote one group, impel the swelling of C shape circle, thereby finish fixing between cylinder axis and the volume core pipe, can carry out bundling work.After bundling was complete, oppositely switching push-tight mechanism moved left again, because C shape coil structures bounces back it voluntarily, thereby made C shape circle external diameter break away from the internal diameter of volume core pipe.When practical application, C shape circle can be installed between cone wedge pipe and the push-tight mechanism and between cone wedge pipe and the detent mechanism, also can C shape circle be installed between cone wedge pipe and the push-tight mechanism or between cone wedge pipe and the detent mechanism, but between two adjacent cone wedge pipes C shape circle must must be installed.

Wherein, preferred described C shape is enclosed an end and is prolonged the circle center position and be extended with a circle key, and the distance between circle a key and the other end circle tail is 10-50mm, and wherein, the external diameter surface that encloses C shape is provided with Non-slip material.C shape ring cross-section is rounded, or at circle at least one plane is arranged, and its external diameter is less than the external diameter of cone wedge pipe, to store the retraction elasticity dynamics of self.

The utility model further preferred described Non-slip material is comprised of a plurality of continuous semi arches or concave station, and the spacing between semi arch or the concave station is 0.1-10mm, makes it further effectively to increase and roll up the clamping force between the core pipe.

By above-mentioned continuous semi arch or concave station, consisted of anti-skidding sword at C shape circle outside face.Just in time opposite by the method that increases frictional area with the mechanical expansion shaft on existing air bag swelling shaft and inclined-plane, the utility model is by changing the size of C shape circle external diameter, make anti-skidding sword and volume core pipe close contact, realized by the secondary mechanical reinforcement of cone wedge pipe inclined-plane to the circle generation, produce the above clamping force of ton, 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.

In the utility model, offer a circle keyway I on the conical head I of described cone wedge pipe, a circle key of C shape circle passes a circle keyway I and is installed in the long keyway of cylinder axis, be provided with screw auxiliary connection groove I in cone wedge pipe, two adjacent cone wedge pipes are connected by screw pair and pass screw auxiliary connection groove I and link together.

Offer the axial groove I on the conical head I of described cone wedge pipe.

The length of described cone wedge pipe and with the configuration quantity of C shape circle combination, roll up minimum fabric width degree in the core pipe and the length of expanding shaft is decided according to product.

Described push-tight mechanism comprises cone wedge ejector sleeve and the push-and-pull nut of working in coordination, push-and-pull nut and cylinder axis are threaded connection together, cone wedge ejector sleeve left end is enclosed within on the push-and-pull nut right-hand member, and link together by steel ball, cone wedge ejector sleeve is connected with cylinder axis by feather key, conical head II at cone wedge ejector sleeve offers axial groove II and a circle keyway II, a circle key of C shape circle passes a circle keyway II and is installed in the long keyway of cylinder axis, and cone wedge ejector sleeve right side is connected by screw secondary and adjacent cone wedge pipe left side and is connected.

During use, be connected by screw adjutant's adjacent two cones wedge pipes and cone wedge ejector sleeves and link together with cone wedge pipe, can make cone wedge ejector sleeve and cone wedge pipe accomplish unified retreating, and with retraction and the swelling of the shortest Stroke Control C shape circle, improved work efficiency.Because the internal diameter of volume core pipe is variant, so the conical head I at cone wedge pipe is offered axial groove, on the conical head II of cone wedge ejector sleeve, also offer axial groove II and internal diameter platform simultaneously, mainly be to provide an elastic space for C shape circle, thereby balanced be enclosed within volume core pipe above the C shape circle to the impact of clamping force, make the discrepant volume core of the internal diameter size pipe also can be fine by swelling card jail.

In order further to make the utility model easy to use, described push-and-pull nut left side is provided with binding nut and clamp nut from right to left successively, binding nut all is threaded connection with cylinder axis with clamp nut is in the same place.

Described cylinder axis left end is equipped with the active side spindle nose, be provided with the first spindle nose key between active side spindle nose and the cylinder axis, between active side spindle nose and clamp nut, be provided with open washer, open washer is sleeved on the cylinder axis, the cylinder axis right-hand member is equipped with the transmission side spindle nose, is provided with the second spindle nose key between transmission side spindle nose and the cylinder axis.

Open washer is set, further determined the position of clamp nut right side, thereby determined the advance and retreat point of binding nut and push-and-pull nut, shortest route when further having played with the retraction of the collaborative C of adjustment of screw auxiliary connection shape circle and swelling is so that bundling is extracted the utility model out after finishing like a cork from volume core pipe.At the cylinder axis right-hand member transmission side spindle nose is installed, is provided with the second spindle nose key between transmission side spindle nose and the cylinder axis, convenient installation of the present utility model during use, gets final product the Transmission connection relevant with reel of transmission side spindle nose.

Wherein, described detent mechanism comprises stationary pipes and adjusts pipe, stationary pipes is sleeved on the cylinder axis, corresponding stationary pipes right-hand member is provided with elastic spring at cylinder axis, elastic spring is fixed on the cylinder axis, adjust the pipe left end and be sleeved on the external diameter platform of stationary pipes, adjust pipe right-hand member and cylinder axis and be threaded connection together.

Elastic spring is used for blocking stationary pipes and moves right at cylinder axis; Adjust the axial location that pipe is used for adjusting volume core pipe.

In order to realize can taking out volume core pipe at the cylinder axis two ends, be provided with expanding ring in described adjustment pipe outer circumference, make installing/dismounting very convenient.

Compared with prior art, the utlity model has following beneficial effect:

1, pass through the utility model, owing to having adopted C shape coil structures, can produce in use outer swollen mechanical booster, it is incompressible, the Non-slip material that the semi arch that encloses by C shape or concave station form can produce the clamping force more than several tons, the mechanical expansion shaft that adds the inclined-plane with air bag swelling shaft and the inclined-plane of original technology by the method that increases frictional area antithesis, the blade that semi arch on the C shape circle or the spacing between the concave station consist of, under equal propelling thrust, the blade clamping force is than large many of large-area friction tension force, can repair in addition by the out of roundness of swollen volume core pipe internal-and external diameter, be conducive to reduce the tooling cost of circle core pipe, be conducive to swelling shaft and batch the again raising of precision, the phenomenon that skidding appears in volume core pipe when having avoided simultaneously bundling.

2, owing on the conical head of cone wedge pipe and cone wedge ejector sleeve, all offering axial groove, so in promoting chucking, eliminated the tolerance clearance of cone wedge pipe and cone wedge ejector sleeve and cylinder axis, the internal diameter difference of simultaneously also balanced volume core pipe is on the impact of clamping force, thus improved expanding shaft batch precision and reliability.

Adopt this inclined-plane little to the radial dimension of circle clamping structure, and make the cylinder axis diameter of load-bearing large, larger 1/4 than air-expanding shaft sectional area just commonly used, this makes the bending resistance of whole mechanical axis and torsion stiffness large, be conducive to reduce and take out the aerial flexural deformation of axle suspension, be conducive to the maintenance of axle precision.

3, the both sides from expanding shaft can install arbitrarily volume core pipe, can take out arbitrarily axle again from the both sides of volume core pipe, are easy to operate.

4, design of the present utility model and processing lay particular emphasis on gauge members such as using spring, and are processed as the master with lathe, grinding machine, so efficient is high, precision is high, cost is low.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is C shape circle block diagram of the present utility model;

Fig. 3 is cone wedge ejector sleeve sectional axonometric drawing of the present utility model;

Fig. 4 is cone wedge pipe sectional axonometric drawing of the present utility model;

Fig. 5 is push-and-pull nut sectional axonometric drawing of the present utility model;

Fig. 6 is stationary pipes sectional axonometric drawing of the present utility model;

Fig. 7 is adjustment pipe sectional axonometric drawing of the present utility model;

Fig. 8 is cylinder axis block diagram of the present utility model;

Among the figure: 1 active side spindle nose; 2 first spindle nose keys; 3 open washers; 4 clamp nuts; 5 binding nuts; 6 push-and-pull nuts; 6.1 hook is pulled groove; 6.2 external diameter; 6.3 pillow block; 6.4 half-arc groove I; 6.5 negative thread I; 6.6 internal diameter platform III; 7 steel balls; 8 cone wedge ejector sleeves; 8.1 front end face II; 8.2 internal diameter platform II; 8.3 axial groove II; A 8.4 circle keyway II; 8.5 screw auxiliary connection groove II; 8.6 conical head II; 8.7 pipe external diameter II; 8.8 adjusting hole II; 8.9 the throwing hole of bead; 8.10 bore II; 8.11 bore axes chamber; 8.12 half-arc groove II; 8.13 undercut II; 9 feather keys; 10, screw auxiliary connection; 11 cone wedge pipes; 11.1 front end face I; 11.2 internal diameter platform I; 11.3 axial groove I; A 11.4 circle keyway I; 11.5 screw auxiliary connection groove I; 11.6 conical head I; 11.7 pipe external diameter I; 11.8 adjusting hole I; 11.9 bore I; 11.10 limit dais I; 11.11 aft end face; 11.12 undercut I; 12 volume core pipes; 13 C shapes circle; 13.1 semi arch; 13.2 anti-skidding sword; A 13.3 circle key; 13.4 circle tail; 14 stationary pipes; 14.1 aft end face; 14.2 limit dais; 14.3 internal diameter; 14.4 external diameter head; 14.5 external diameter platform; 14.6 chamfering inclined-plane; 15 volume core tube heads; 16 elastic springs; 17 adjust pipe; 17.1 front end face; 17.2 inner diameter hole; 17.3 half-arc groove; 17.4 negative thread II; 17.5 pipe external diameter; 18 cylinder axis; 18.1 pillow block keyway; 18.2 spindle nose platform; 18.3 outside thread; 18.4 axle external diameter; 18.5 long keyway; 18.6 back-up ring annular groove; 18.7 pillow block keyway; 19 transmission side spindle noses; 20 second spindle nose keys; 21 expanding rings

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further:

Such as Fig. 1, shown in Figure 2, C shape circle mechanical type expanding shaft, comprise cylinder axis 18, push-tight mechanism is installed on the cylinder axis 18 from left to right successively, cone wedge pipe group and detent mechanism, cone wedge pipe group is comprised of a plurality of cone wedge pipes 11 that are arranged side by side, between cone wedge pipe 11 and the push-tight mechanism, bore between the wedge pipes 11 and C shape all is installed between cone wedge pipe 11 and the detent mechanism for adjacent two and enclose 13, C shape enclose 13 1 ends prolong the circle center position be extended with the circle key 13.3, distance between a circle key 13.3 and the other end circle tail 13.4 is 10-50mm, wherein, external diameter surface at C shape circle 13 is provided with Non-slip material, Non-slip material is comprised of a plurality of continuous semi arches 13.1 or concave station, and the spacing between semi arch or the concave station is 0.1-10mm.

In the present embodiment, such as Fig. 2, shown in Figure 4, Non-slip material adopts semi arch 13.1, encloses 13 outside faces by continuous semi arch 13.1 C shape and has consisted of anti-skidding sword 13.2; In order further to guarantee the outside swollen rear fast bullet contracting power of retraction of C shape circle 13, in the circle external diameters of the C shape circle 13 between two cone wedge pipes 11 and between cone wedge pipe 11 and the detent mechanism pipe external diameter I 11.7 less than cone wedge pipe 11, the length of cone wedge pipe 11 and quantity will be according to the length of the volume core pipe 12 of bundling and the quantity after wanting bundling determine.

C shape ring cross-section is rounded or at circle at least one plane is arranged, and its external diameter is less than the external diameter of cone wedge pipe, to store the retraction elasticity dynamics of self.

Such as Fig. 1, Fig. 4, shown in Figure 8, the conical head I 11.6 of cone wedge pipe 11 begins to offer axial groove I 11.3 and a circle keyway I 11.4 from front end face I 11.1, a circle key 13.3 of C shape circle 13 passes a circle keyway I 11.4 and is installed in the long keyway 18.5 of offering on the cylinder axis 18, in cone wedge pipe 11, be provided with screw auxiliary connection groove I 11.5, adjacent two cone wedge pipes 11 are connected by screw secondary 10 and pass screw auxiliary connection groove I 11.5 and link together, for the elastomeric supporting of radially formation that makes conical head I 11.6, be provided with internal diameter platform I 11.2 at conical head I 11.6 madial walls, impact when in order to the difference in internal diameters that overcomes volume core pipe 12 C shape being enclosed 13 swelling, as shown in Figure 4, stop in order to enclose 13 1 for the C shape that is sleeved on the conical head I 11.6, impel it outer swollen, be provided with aft end face 11.11 at cone wedge pipe 11 left ends, opposite rear end face 11.11 is provided with limit dais I 11.10 at cone wedge pipe 11 left end madial walls, the degree of depth between aft end face 11.11 and the limit dais I 11.10 has formed C shape and has enclosed the stroke of 13 breathing, limit dais I 11.10 madial walls have consisted of a bore I 11.9 that is used for cooperating with the axle external diameter 18.4 of cylinder axis 18 installation, easy to adjust when connecting for screw auxiliary connection 10, corresponding screw auxiliary connection groove I 11.5 offers two adjusting hole I 11.8 and offers undercut I 11.12 at cone wedge pipe 11 madial walls at cone wedge pipe 11.

Such as Fig. 1, Fig. 3, shown in Figure 5, described push-tight mechanism comprises cone wedge ejector sleeve 8 and the push-and-pull nut 6 of working in coordination, push-and-pull nut 6 is threaded connection together with cylinder axis 18, cone wedge ejector sleeve 8 left ends are enclosed within on push-and-pull nut 6 right-hand members, and link together by steel ball 7, cone wedge ejector sleeve 8 is connected with cylinder axis 18 by feather key 9, conical head II 8.6 at cone wedge ejector sleeve 8 offers axial groove II 8.3 and a circle keyway II 8.4, for feather key 9 is installed screw auxiliary connection groove II 8.5 is extended, a circle key 13.3 passes a circle keyway II 8.4 and is installed in the long keyway 18.5 on the cylinder axis 18, and cone wedge ejector sleeve 8 right sides are connected by screw secondary 10 and are connected with adjacent cone wedge pipe 11 left sides.

Such as Fig. 3, shown in Figure 8, conical head II 8.6 madial walls at cone wedge ejector sleeve 8 are provided with internal diameter platform II 8.2, be provided with the bore II 8.10 of installing for cooperating with the axle external diameter 18.4 of cylinder axis 18 on the madial wall at cone wedge ejector sleeve 8 middle parts, offer undercut II 8.13 on cone wedge ejector sleeve 8 madial walls between internal diameter platform II 8.2 and the bore II 8.10, in cone wedge ejector sleeve 8, be provided with screw auxiliary connection groove II 8.5, screw auxiliary connection 10 passes a circle key 13.3 of C shape circle, neutral gear between the circle tail 13.4, being connected by screw secondary groove II 8.5 links together adjacent cone wedge pipe 11, corresponding screw auxiliary connection groove II 8.5 offers adjusting hole II 8.8 at cone wedge ejector sleeve 8, offer for the half-arc groove II 8.12 of placing steel ball 7 at cone wedge ejector sleeve 8 left end madial walls, corresponding half-arc groove II 8.12 offers be used to the throwing hole of bead 8.9 of throwing steel ball 7 at cone wedge ejector sleeve 8, between half-arc groove II 8.12 and bore II 8.10, be provided with bore axes chamber 8.11, push-and-pull nut 6 and other method that can also adopt except aforesaid way that is connected of boring wedge ejector sleeve 8.

At cone wedge ejector sleeve 8 C shape being installed enclosed 13 o'clock, C shape circle 13 front end face II 8.1 ends from conical head II 8.6 are inserted in, circle key 13.3 with C shape circle 13 passes a circle keyway II 8.4 at last, be stuck in simultaneously in the cylinder axis long keyway 18.5, for the further outside bullet contracting power of swollen rear quick retraction of C shape circle 13 that guarantees, the C shape between cone wedge pipe 11 and cone wedge ejector sleeve 8 is enclosed 13 circle external diameter less than the pipe external diameter II 8.7 of boring wedge ejector sleeve 8.

Such as Fig. 5, shown in Figure 8, at push-and-pull nut 6 left end madial wall circumference negative thread I 6.5 is set, corresponding negative thread I 6.5 is provided with outside thread 18.3 at cylinder axis 18, be provided with hook on the circumference of lateral wall and pull groove 6.1, on the push-and-pull nut 6 right-hand member madial wall circumference internal diameter platform III 6.6 is set, be provided with pillow block 6.3 on the circumference of lateral wall, corresponding half-arc groove II 8.12 offers half-arc groove I 6.4 at pillow block 6.3.

When push-and-pull nut 6 right-hand members cooperates with cone wedge ejector sleeve 8 left ends install after, the tracks of a steel ball 7 of formation between half-arc groove I 6.4 and the half-arc groove II 8.12, the external diameter 6.2 of push-and-pull nut 6 is less than the internal diameter of rolling up core pipe 12.

As shown in Figure 1, described push-and-pull nut 6 left sides are provided with binding nut 5 and clamp nut 4 from right to left successively, and binding nut 5 all is threaded connection with cylinder axis 18 with clamp nut 4 is in the same place.

Such as Fig. 1, Fig. 6, Fig. 7, shown in Figure 8, described detent mechanism comprises stationary pipes 14 and adjusts pipe 17, the internal diameter 14.3 of stationary pipes 14 is sleeved on the cylinder axis 18, aft end face 14.1 and limit dais 14.2 and cone wedge pipe 11 are the same to play the effect that stops and consist of stroke to C shape circle 13, external diameter head 14.4 is less than the internal diameter of volume core pipe 12, corresponding stationary pipes 14 right-hand members are provided with back-up ring annular groove 18.6 at cylinder axis 18, be provided with chamfering inclined-plane 14.6 at stationary pipes 14 right-hand members, elastic spring 16 is fixed on the cylinder axis 18, adjust the front end face 17.1 of pipe 17 towards the left side of axle, inner diameter hole 17.2 is sleeved on the external diameter platform 14.5 of stationary pipes 14, be provided with negative thread II 17.4 on the right-hand member madial wall, corresponding negative thread II 17.4 arranges the outside thread that cooperates with it at cylinder axis 18, adjusting pipe 17 is installed on the cylinder axis 18 by negative thread II 17.4 and externally threaded cooperation, its pipe external diameter 17.5 is provided with half-arc groove 17.3, is inserted with easy-to-dismount expanding ring 21 on the half-arc groove 17.3.

Such as Fig. 1, shown in Figure 8, the axle external diameter 18.4 of described cylinder axis 18 is provided with a long keyway 18.5 at least, two ends, cylinder axis 18 left and right sides are provided with pillow block keyway 18.1,18.7, cylinder axis 18 left ends are equipped with active side spindle nose 1, be provided with the first spindle nose key 2 between the spindle nose platform 18.2 of active side spindle nose 1 and cylinder axis 18, between active side spindle nose 1 and clamp nut 4, be provided with open washer 3, open washer 3 is sleeved on the cylinder axis 18, cylinder axis 18 right-hand members are equipped with transmission side spindle nose 19, are provided with the second spindle nose key 20 between transmission side spindle nose 19 and the cylinder axis 18.

Use procedure and principle are as follows:

Such as Fig. 1, from the left side of swelling shaft or push expanding ring 21 aside volume core pipe 12 and volume core tube head 15 are put on, swelling shaft is put into and two the clamping between the coneheads of reel, pipe 17 is adjusted in rotation, from volume core tube head 15, the end face of volume core pipe 12 is alignd with the foil end face that will batch.

Take the outer diameter flat of active side spindle nose 1 as benchmark, utilize hook-shaped spanner or reinforcement instrument, the hook that hooks push-and-pull nut 6 is pulled groove 6.1 and rotation, promotes forward to bore wedge ejector sleeve 8 by steel ball 7.

The C shape circle 13 of one circle circle, under the conical surface of conical head II 8.6 and conical head I 11.6 promotes, on each C shape circle 13 tens is anti-skidding sword to advance along the axis of sword along volume core pipe 12, and C shape circle external diameter is increased, and is that chisel edge laterally is clamped on the internal diameter of volume core pipe 12 at last.

Because the length of cone wedge pipe 11 and C shape circle arranged with interval relation, if the position of C shape circle 13, be in an end or two ends at volume core pipe 12 places, when not expanding to volume core pipe 12, front end face II 8.1, the front end face I 11.1 of cone wedge ejector sleeve 8 and cone wedge pipe 11 will lean on the limit dais I 11.10 of managing in front rear side, C shape circle 13 has just stopped outer swollen, does not affect to promote moving on of next stage cone wedge pipe 11.

Batch machine after, unclamp binding nut 5, opposite spin push-and-pull nut 6 in the same way again in the retreating of steel ball 7 pulling cone wedge ejector sleeves 8, and from right to left successively in the pulling, draws back each cone wedge pipe 11 by each screw auxiliary connection.Because conical head is drawn back, expand in the top that makes C shape circle 13 break away from conical head II 8.6 and conical head I 11.6, and C shape circle 13 elasticity own bounce back voluntarily, makes C shape circle external diameter break away from the internal diameter of volume core pipe 12.

The operator will release expanding shaft easily from any side of mechanical expansion shaft from the volume core pipe 12 with the material volume.

Claims

1. a C shape is enclosed the mechanical type expanding shaft, comprise cylinder axis (18), it is characterized in that: push-tight mechanism, cone wedge pipe group and detent mechanism are installed on the cylinder axis (18) from left to right successively, cone wedge pipe group is comprised of a plurality of cone wedge pipes (11) that are arranged side by side, between cone wedge pipe (11) and the push-tight mechanism, between adjacent two cone wedge pipes (11) and bore and C shape all is installed between wedge pipe (11) and the detent mechanism encloses (13).

2. C shape according to claim 1 is enclosed the mechanical type expanding shaft, it is characterized in that: described C shape circle (13) one ends prolong the circle center position and are extended with a circle key (13.3), distance between a circle key (13.3) and the other end circle tail (13.4) is 10-50mm, wherein, the external diameter surface at C shape circle (13) is provided with Non-slip material.

3. C shape according to claim 2 is enclosed the mechanical type expanding shaft, and it is characterized in that: described Non-slip material is comprised of a plurality of continuous semi arches or concave station, and the spacing between semi arch or the concave station is 0.1-10mm.

4. according to claim 2 or 3 described C shapes circle mechanical type expanding shafts, it is characterized in that: offer a circle keyway I (11.4) on the conical head I (11.6) of described cone wedge pipe (11), a circle key (13.3) of C shape circle (13) passes a circle keyway I (11.4) and is installed in the long keyway (18.5) of offering on the cylinder axis (18), be provided with screw auxiliary connection groove I (11.5) in cone wedge pipe (11), adjacent two cone wedge pipes (11) are connected by screw pair (10) and pass screw auxiliary connection groove I (11.5) and link together.

5. C shape according to claim 4 is enclosed the mechanical type expanding shaft, it is characterized in that: offer axial groove I (11.3) on the conical head I (11.6) of described cone wedge pipe (11), inwall in conical head I (11.6) is provided with an internal diameter platform (11.2), and the aft end face (11.11) of cone wedge pipe (11) is provided with limit dais (11.10).

6. C shape according to claim 5 is enclosed the mechanical type expanding shaft, it is characterized in that: described push-tight mechanism comprises cone wedge ejector sleeve (8) and the push-and-pull nut (6) of working in coordination, push-and-pull nut (6) is threaded connection together with cylinder axis (18), cone wedge ejector sleeve (8) left end is enclosed within on push-and-pull nut (6) right-hand member, and link together by steel ball (7), cone wedge ejector sleeve (8) is connected with cylinder axis (18) by feather key (9), conical head II (8.6) at cone wedge ejector sleeve (8) offers axial groove II (8.3) and a circle keyway II (8.4), a circle key (13.3) is installed in the circle keyway II (8.4), and cone wedge ejector sleeve (8) right side is connected on the left of being connected by screw pair (10) and adjacent cone wedge pipe (11).

7. C shape according to claim 6 is enclosed the mechanical type expanding shaft, it is characterized in that: described push-and-pull nut (6) left side is provided with binding nut (5) and clamp nut (4) from right to left successively, and binding nut (5) and clamp nut (4) all are threaded connection together with cylinder axis (18).

8. C shape according to claim 7 is enclosed the mechanical type expanding shaft, it is characterized in that: described detent mechanism comprises stationary pipes (14) and adjusts pipe (17), stationary pipes (14) is sleeved on the cylinder axis (18), corresponding stationary pipes (14) right-hand member is provided with elastic spring (16) at cylinder axis (18), elastic spring (16) is fixed on the cylinder axis (18), adjust pipe (17) left end and be sleeved on the external diameter platform (14.5) of stationary pipes (14), adjust pipe (17) right-hand member and cylinder axis (18) and be threaded connection together.

9. C shape circle mechanical type expanding shaft according to claim 8 is characterized in that: be provided with expanding ring (21) on described adjustment pipe (17) outer circumference.

10. C shape according to claim 9 is enclosed the mechanical type expanding shaft, it is characterized in that: described cylinder axis (18) left end is equipped with active side spindle nose (1), be provided with the first spindle nose key (2) between active side spindle nose (1) and the cylinder axis (18), between active side spindle nose (1) and clamp nut (4), be provided with open washer (3), open washer (3) is sleeved on the cylinder axis (18), cylinder axis (18) right-hand member is equipped with transmission side spindle nose (19), is provided with the second spindle nose key (20) between transmission side spindle nose (19) and the cylinder axis (18).