CN202701026U

CN202701026U - Expansion compression device, uncoiler and winding and unwinding machine

Info

Publication number: CN202701026U
Application number: CN 201220190868
Authority: CN
Inventors: 李也庚
Original assignee: Tianjin Sainteagle Welding Co Ltd
Current assignee: Tianjin Sainteagle Welding Co Ltd
Priority date: 2012-05-02
Filing date: 2012-05-02
Publication date: 2013-01-30
Anticipated expiration: 2022-05-02

Abstract

The utility model discloses an expansion compression device, an uncoiler provided with the expansion compression device and a winding and unwinding machine provided with the expansion compression device. A compression spring is arranged between components which transmits axial force used for expansion. The expansion compression device has the advantages of transmitting force through the spring, improving expansion force on the inner side of a steel belt coil and being more stable and reliable in operation of the machines and more convenient to operate.

Description

Support reduction device and uncoiler and unwinding and rewinding machine

Technical field

The utility model belongs to " but hole enlargement or contractile reel ", belong to B21C 47/30 group, and " unwinding or uncoiling metal wire, metal tape or other flexible metallic materials on spool or the reel ", B21C 47/18 group that belongs to the IPC classification, and " rolling tightly, reeling of metal wire, metal tape or other flexible metallic materials ", belong to B21C 47/02 group of IPC classification, particularly relate to support reduction device and a kind of uncoiler and a kind of unwinding and rewinding machine that uses this support reduction device that has used this support reduction device.

Background technology

In existing rolling/uncoiler, if there is employing cylinder/hydraulic cylinder to realize the swelling function of swelling watt, all do not have auto-lock function.That is, when cylinder/hydraulic cylinder or the gas circuit that is connected with it/fluid pressure line occured to reveal, the air pressure or the hydraulic pressure that act in the cylinder body on the piston descended, and swelling watt will lose enough tension forces.When swelling watt loses enough tension forces, for the machine of vertical uncoiling/rolling, still can owing to the deadweight of material volume, the material volume still can be positioned in the swelling watt (or being referred to as reel).But for the machine of horizontal uncoiling/rolling, tension force when being easy to owing to rolling/uncoiling or the reasons such as whirling vibration of machine cause the material volume to fly out or expect that volume scatters, and in case loose volume occurs, then generally raw material can't be reverted to original state again, so this just causes serious security incident or causes serious wastage of material.

If but the cylinder/hydraulic cylinder that will have simply auto-lock function is applied to uncoiling/winder field, can have following problem again:

1, the self-locking of cylinder/hydraulic cylinder only is to keep the position of actuating strut motionless, and can't guarantee to provide a lasting constantly active force so that the swelling watt inboard that has enough tension forces to come distensible material to roll up, watt can not retract and only satisfy swelling, it only is the simple passive non-active tension force of support force between swelling watt and the material volume inboard, be actually like this and rise not tightly, for example patent application 201010138295.0 disclosed spool material retractable feeders just do not adopt self-locking cylinder to hold out against I-beam wheel; If the internal diameter of 2 material volumes is not completely unified, internal diameter is less than normal slightly, will cause the piston of self-locking cylinder/hydraulic cylinder full action to put in place, self-locking device can't start, internal diameter is bigger than normal slightly, will cause the piston full action of self-locking cylinder/hydraulic cylinder to put in place after, self-locking device starts, it is inboard that swelling watt also can't the distensible material volume, also or should have more than is needed self-locking cylinder/hydraulic cylinder.

So self-locking cylinder/hydraulic cylinder is applied to uncoiling/winder field, avoid leaking gas or leakage on the impact of machine safety in operation and reliability, be that those skilled in the art thirsts for solving and the problem of failing to succeed always.

The utility model content

The utility model provides a kind of support reduction device and a kind of uncoiler and a kind of unwinding and rewinding machine that uses this support reduction device that has used this support reduction device for solving the technical problem that exists in the known technology, and this support reduction device can remain the tension force to the steel coil strip inboard.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:

A kind of support reduction device is characterized in that: be provided with Compress Spring between the parts that transmit the axial force that is used for swelling.

Preferably, comprise some swellings watt of being arranged on the turnbarrel periphery, be installed in the described turnbarrel and the push-and-pull action bar that links to each other with self-locking air cylinder, the breathing mechanism that is installed in push-and-pull action bar outer end, it is characterized in that: be provided with two-direction thrust bearing in the breathing mechanism, between cylinder, push-and-pull action bar, two-direction thrust bearing and the breathing mechanism of the thrust that transmit to be used for swelling or pulling force, be provided with Compress Spring.

Preferably, described swelling watt is by supporting arrangement or directly link to each other with described turnbarrel or with Internal baffle on being installed in turnbarrel, and the outside of described breathing mechanism and described swelling watt are connected; Described breathing mechanism and push-and-pull action bar, swelling watt, turnbarrel or Internal baffle or above-mentioned four consist of mechanism with single degree of freedom with supporting arrangement is common in the breathing plane of movement of every tensioner watt, it is characterized in that: in the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with sliding bearing chamber or sliding sleeve, the mode that connects with the N free degree is connected with turnbarrel, M, N are 1 or 2, and M+N=3.

Preferably,

Described push-and-pull action bar is pull bar, the inner of described pull bar is connected with the sleeve bearing chamber, the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that: described sleeve bearing is indoor from the outer end to inner two-direction thrust bearing, the first Compress Spring and the limiting component that is installed on the described pull bar that be provided with successively, described pull bar is provided with first shaft shoulder, described the first Compress Spring is installed between first shaft shoulder of described limiting component and described pull bar, and described pull bar is provided with for the force application structure that inwardly promotes described two-direction thrust bearing;

The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve, described the first inner ring sleeve is being sleeved on the described pull bar with respect to the mode of pull bar along pull rod shaft to inside slip, described the first inner ring sleeve is in the outer outer ring of described two-direction thrust bearing, and be provided with for second shaft shoulder that inwardly holds out against the two-direction thrust bearing inner ring, described the first Compress Spring acts on elastic force on the inner face of described the first inner ring sleeve directly or indirectly.

Preferably, described push-and-pull action bar is pull bar, and the inner of described pull bar is connected with the sleeve bearing chamber, and the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the inner to the outer end of described sleeve bearing, described pull bar is provided with the 3rd shaft shoulder, the 3rd shaft shoulder props up the inner face of two-direction thrust bearing inner ring, the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve, and described sleeve bearing chamber is provided with for the force application structure that props up outward described two-direction thrust bearing; Described the first outer ring sleeve is being sleeved on described sleeve bearing chamber internal surface with respect to the mode of axially outwards sliding along the sleeve bearing chamber in the sleeve bearing chamber, and be provided with for the 5th shaft shoulder that holds out against the outer outer ring of two-direction thrust bearing to the inner, described the first Compress Spring acts on elastic force on the outer face of described the first outer ring sleeve directly or indirectly.

Preferably, described push-and-pull action bar is push rod, and the inner of described push rod is connected with the sleeve bearing chamber, and the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that:

Indoor limiting component, two-direction thrust bearing, the first Compress Spring that is installed on the described push rod that be provided with successively from the inner to outer end of described sleeve bearing, described push rod is provided with for first shaft shoulder or the force application apparatus that inwardly promote described the first Compress Spring, and described the first Compress Spring is installed between first shaft shoulder or force application apparatus of described limiting component and described push rod; The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve, described the first inner ring sleeve is being sleeved on the described push rod with respect to the mode of push rod along push rod shaft to outside slip, the outer end of described the first inner ring sleeve outwards leans out the outer outer ring of two-direction thrust bearing, and be provided with for second shaft shoulder that inwardly holds out against the two-direction thrust bearing inner ring, described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly.

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the outer end to the inner of described sleeve bearing, described push rod is provided with the 6th shaft shoulder, the 6th shaft shoulder props up the outer face of two-direction thrust bearing inner ring, the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve, and described sleeve bearing chamber is provided with for the force application structure that props up described two-direction thrust bearing to the inner; Described the first outer ring sleeve is being sleeved on described sleeve bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sleeve bearing chamber in the sleeve bearing chamber, and be provided with for holding out against outward five shaft shoulder of two-direction thrust bearing by inner outer ring, described the first Compress Spring acts on elastic force on the inner face of described the first inner ring sleeve directly or indirectly.

Preferably, the inner of described push-and-pull action bar is provided with slip cap, and described slip cap is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

The indoor two-direction thrust bearing that is sleeved on the described push-and-pull action bar that is provided with of described sliding bearing, and at the first stopping means and second stopping means of the indoor two-direction thrust bearing of sliding bearing; Be provided with the 3rd stopping means and the 4th stopping means on the described push-and-pull action bar in the two-direction thrust bearing both sides; Be provided with the first Compress Spring in the described slip cap, be connected in the 5th limiting component and the 6th limiting component on the sliding sleeve, described the first Compress Spring is installed between the 5th limiting component and the 6th limiting component, described push-and-pull action bar is provided with the 7th limiting component and the 8th limiting component, and described the first Compress Spring is installed between described the 7th limiting component and described the 8th limiting component.

Preferably, described push-and-pull action bar is pull bar, and the inner of described pull bar is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component that is installed on the described pull bar that be provided with successively from the inner to outer end of described sliding bearing, described pull bar is provided with first shaft shoulder, described the first Compress Spring is installed between first shaft shoulder of described limiting component and described pull bar, and described pull bar is provided with for the force application structure that outwards promotes described two-direction thrust bearing; The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve, described the first inner ring sleeve is being sleeved on the described pull bar with respect to the mode of pull bar along pull rod shaft to outside slip, described the first inner ring sleeve is in the outer outer ring of described two-direction thrust bearing, and be provided with for second shaft shoulder that inwardly holds out against the two-direction thrust bearing inner ring, described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly.

Preferably, described push-and-pull action bar is pull bar, and the inner of described pull bar is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected;

It is characterized in that: indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the outer end to the inner of described sliding bearing, described pull bar is provided with the 3rd shaft shoulder, the 3rd shaft shoulder props up the outer face of two-direction thrust bearing inner ring, the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve, and described sliding bearing chamber is provided with for the force application structure that props up described two-direction thrust bearing to the inner; Described the first outer ring sleeve is being sleeved on described sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, and be provided with for holding out against outward five shaft shoulder of two-direction thrust bearing by inner outer ring, described the first Compress Spring acts on elastic force on the inner face of described the first outer ring sleeve directly or indirectly.

Preferably, described push-and-pull action bar is push rod, and the inner of described push rod is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

Described sliding bearing is indoor from the outer end to inner limiting component, two-direction thrust bearing, the first Compress Spring that is installed on the described push rod that be provided with successively, described push rod is provided with for first shaft shoulder or the force application apparatus that outwards promote described the first Compress Spring, and described the first Compress Spring is installed between first shaft shoulder or force application apparatus of described limiting component and described push rod; The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve, described the first inner ring sleeve is being sleeved on the described push rod with respect to the mode of push rod along push rod shaft to inside slip, the inner of described the first inner ring sleeve inwardly leans out two-direction thrust bearing by inner outer ring and is provided with for second shaft shoulder that outwards holds out against the two-direction thrust bearing inner ring, and described the first Compress Spring acts on elastic force on the inner face of described the first inner ring sleeve directly or indirectly.

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the inner to the outer end of described sliding bearing, described push rod is provided with the 6th shaft shoulder, the 6th shaft shoulder props up the inner face of two-direction thrust bearing inner ring, the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve, and described sliding bearing chamber is provided with for the force application structure that props up outward described two-direction thrust bearing; Described the first outer ring sleeve is being sleeved on described sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, and be provided with for the 5th shaft shoulder that holds out against the outer outer ring of two-direction thrust bearing to the inner, described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly

Preferably, be coated with the push-and-pull action bar in the described turnbarrel, the inner of described push-and-pull action bar is provided with the sleeve bearing chamber, and described sleeve bearing chamber is characterized in that by connecting plate or by leverage or directly be connected with the start cylinder:

The indoor two-direction thrust bearing that is sleeved on the described push-and-pull action bar that is provided with of described sleeve bearing, and at the first stopping means and second stopping means of the indoor two-direction thrust bearing of sleeve bearing; Be provided with the 3rd stopping means and the 4th stopping means on the described push-and-pull action bar in the two-direction thrust bearing both sides; Be provided with the first Compress Spring in the described sliding sleeve, be connected in the 5th limiting component and the 6th limiting component on the sliding sleeve, described the first Compress Spring is installed between the 5th limiting component and the 6th limiting component, described push-and-pull action bar is provided with the 7th limiting component and the 8th limiting component, and described the first Compress Spring is installed between described the 7th limiting component and described the 8th limiting component.

Preferably, clamped the adjustment packing ring between first shaft shoulder of described the first Compress Spring and described pull bar, described adjusting pad snare is contained on the described pull bar.

Preferably, clamped the adjustment packing ring between described the first Compress Spring and the first outer ring sleeve, described adjusting pad snare is contained on the inwall of described sleeve bearing chamber.

A kind of uncoiler that has adopted above-mentioned support reduction device.

A kind of unwinding and rewinding machine that has adopted above-mentioned support reduction device.

Advantage and the good effect that the utlity model has are: in support and contracting mechanism, adopt the Compress Spring power transmission, the tension force that mechanism provides is greater than the required support force of material volume, make mechanism can remain tension force to the steel coil strip inboard, make the operation of machine more stable, reliably, more convenient to operate.And in support and contracting mechanism, adopt the Compress Spring power transmission, can remedy the rigging error of machine, reduce the manufacturing cost of machine.

Description of drawings

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

Fig. 2 a and Fig. 2 b are the partial structurtes schematic diagrames that embodiment 1 pull bar is drawn to diverse location;

Fig. 3 is the schematic perspective view that the utility model embodiment 1 start cylinder group is arranged;

Fig. 4 is the partial structurtes schematic diagram after the utility model improves embodiment 1;

Fig. 5 is the partial structurtes schematic diagram of the utility model embodiment 5.

Fig. 6 is the first cylinder of the utility model embodiment 2 is connected partial structurtes with pull bar schematic diagram.

Fig. 7 is the 2nd kind of cylinder of the utility model embodiment 2 is connected partial structurtes with pull bar schematic diagram;

Fig. 8 a and Fig. 8 b are the partial schematic diagrams of the utility model embodiment 3 the 1st, 2 kind of cylinder and bar jointing structure;

Fig. 9 a and Fig. 9 b are the partial schematic diagrams of the utility model embodiment 3 the 3rd, 4 kind of cylinder and bar jointing structure;

Figure 10 is the first structural scheme of mechanism of the utility model embodiment 6;

Figure 11 is the 2nd kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 12 is the 3rd kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 13 is the 4th kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 14 is the 5th kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 15 is the 6th kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 16 is the 7th kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 17 is the 8th kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 18 is the 9th kind of structural scheme of mechanism of the utility model embodiment 6;

Figure 19 is the structural representation of the breathing mechanism of the utility model embodiment 7;

Figure 20 is the structural representation of the breathing mechanism of the utility model embodiment 8;

Figure 21 is the structural representation of the breathing mechanism of the utility model embodiment 9;

Figure 22 is the structural representation of the breathing mechanism of the utility model embodiment 10;

Figure 23 is the partial structurtes schematic diagram of the utility model embodiment 11;

Figure 24 is the structural representation of the utility model embodiment 12 one-sided uncoilers;

Figure 25 is the structural representation of the utility model embodiment 13 one-sided unwinding and rewinding machines;

Figure 26 is the structural representation of the utility model embodiment 14;

Figure 27 is the schematic perspective view that the utility model embodiment 14 start cylinder groups are arranged;

Figure 28 is the partial structurtes schematic diagram after the utility model improves embodiment 14;

Figure 29 is the partial structurtes schematic diagram after the utility model embodiment 14 clamps the adjusted size packing ring;

Figure 30 is the first structural representation of the utility model embodiment 15;

Figure 31 a and Figure 31 b are the second of the utility model embodiment 15 and the schematic diagram of the third structure.

Figure 32 a and Figure 32 b are the schematic diagrames of the 1st kind and the 2nd kind structure of the utility model embodiment 16.

Figure 33 a and Figure 33 b are the schematic diagrames of the 3rd kind and the 4th kind structure of the utility model embodiment 16.

Figure 34 is the partial structurtes schematic diagram of the utility model embodiment 17 breathing mechanisms;

Figure 35 is the partial structurtes schematic diagram of the utility model embodiment 18 breathing mechanisms;

Figure 36 is the partial structurtes schematic diagram of the utility model embodiment 19 breathing mechanisms;

Figure 37 is the partial structurtes schematic diagram of the utility model embodiment 20 breathing mechanisms;

Figure 38 is the partial structurtes schematic diagram of the utility model embodiment 21;

The specific embodiment

For further understanding utility model content of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:

Embodiment 1:

See also Fig. 1,

Turnbarrel 27 outer is arranged with some swellings watts 7, is equipped with two groups of parallel isometric support link 9 between every swelling watts 7 and turnbarrel 27.In the present embodiment, swelling watts 7 is provided with inner reinforced plate, and turnbarrel 27 is provided with outer gusset, and an end of swelling watt inner reinforced plate 8 and two groups of support link 9 is hinged, and the outer gusset 11 of the other end of two groups of support link 9 and turnbarrel is hinged.These two groups parallel isometric support link make swelling watt can only carry out parallel, and any rotation or swing do not occur.

Above-mentioned support and contracting mechanism comprises that the inner is positioned at turnbarrel 27 ports and the outer end is positioned at the outer slip cap 13 of this port of turnbarrel, and this slip cap 13 is in axial sliding connection with turnbarrel 27, and internal-and external diameter cooperatively interacts, and relative rotation does not circumferentially occur.Outer end at slip cap 13 has a shaft shoulder at excircle, and the inner of limit slippage cover 13 puts in the degree of depth of turnbarrel 27.It is that outer end portion is provided with outer gusset that slip cap 13 is positioned at the outer part of port, between slip cap 13 and every swelling watt inner reinforced plate 8, be equipped with swelling connecting rod 10, one end and the swelling watt inner reinforced plate 8 of swelling connecting rod 10 are hinged, and the other end is hinged on the outer gusset 12 of slip cap.The swelling connecting rod 10 that links to each other with same swelling watt inner reinforced plate and support link 9 are positioned at same plane and are splayed arranges, slip cap is connected the end and is connected in two-way in the axial direction fixing mode with pull bar.

The inner of pull bar is provided with the sleeve bearing chamber, in sleeve bearing chamber 71, from the outer end, be provided with the two-direction thrust bearing 20, dish spring support ring 19, disk spring group 18 and the disc spring sleeve 15 that are sleeved on successively on the pull bar 17, disk spring group 18 is contained in the disc spring sleeve 15, disc spring sleeve is bowl-type, and the bottom of bowl is sleeved on the pull bar, and disc spring sleeve 15 is positioned at the inboard of two-direction thrust bearing 20 and opening towards two-direction thrust bearing 20; Pull bar 17 passes disc spring sleeve 15 and is provided with one section external screw thread, is connected with nut 16 on the screw thread of pull bar outer end, the bottom inside adjacency of nut 16 and disc spring sleeve 15.

Disk spring group 18 is comprised of some disk springs, and cramping is between the bottom and dish spring support ring 19 of disc spring sleeve 15, and inboard bottom outside with disc spring sleeve 15 is adjacent, the outside and dish spring support ring 19 inboard adjacent.Disk spring group 18 and disc spring sleeve 15 all are sleeved on the pull bar 17.Dish spring support ring 19 is an endless member that inside and outside two sides are parallel, between disk spring group 18 and the first inner ring sleeve 21.Certainly, the opening direction of disc spring sleeve also can be reverse, and namely dish spring support ring is positioned at the inboard of dish spring group, and with the nut adjacency, during rotating nut, nut promotes dish spring support ring compact disc spring group.

The inner ring of two-direction thrust bearing 20 is installed between the first inner ring sleeve 21 and the second inner ring sleeve 22.The first inner ring sleeve 21 to be can being sleeved on the pull bar 17 along the modes that pull bar 17 axially inwardly slides, and be larger matched in clearance between the pull bar 17, causes unnecessary wearing and tearing to avoid the first inner ring sleeve 21 and pull bar 17 to come in contact.The second inner ring sleeve 22 suits are fixed on the first inner ring sleeve 21.The inner end portion of the first inner ring sleeve 21 outer walls is provided with second shaft shoulder 94, and this second shaft shoulder props up the inboard of two-direction thrust bearing 20 inner rings, and the medial surface of the second inner ring sleeve 22 props up the outside of two-direction thrust bearing 20 inner rings.The outer ring of two-direction thrust bearing 20 is installed in the sleeve bearing chamber 13, and the inner of sleeve bearing chamber 13 is connected with bearing (ball) cover 14 by bolt, and this bearing (ball) cover 14 is a tubular construction, and the inner of tubular is provided with flange, is used for being connected with the inner face of sliding bearing chamber; The outer end of tubular props up the inboard outer ring of two-direction thrust bearing 20, is used for the location of this outer ring.

Disc spring sleeve 15 is positioned at the tubular construction of bearing (ball) cover 14, and does not contact with the tubular construction inwall of bearing (ball) cover 14.

Also be provided with a circlip for shaft 23 on the pull bar 17, circlip 23 is positioned at the outside of the first inner ring sleeve 21 and the second inner ring sleeve 22, is used for by the first inner ring sleeve 21 and the second inner ring sleeve 22 pushing drawing rods.Before each material loading, pull bar is extrapolated, so that slip cap is outwards mobile, and then drive swelling by the swelling connecting rod and watt close up with convenient upper volume, because required thrust is little, so be provided with a circlip for shaft 23 at pull bar, the installation site of this circlip for shaft 23 is the outside of swelling first inner ring sleeve 21 when watt strutting fully.When pull bar 17 moves laterally, cylinder shrinks, drive the sleeve bearing chamber by connecting plate outwards mobile, the sleeve bearing chamber promotes two-direction thrust bearing by the bearing (ball) cover that is connected with the sleeve bearing chamber, and then promote the first inner ring sleeve and the second inner ring sleeve, and then it is outwards mobile to drive pull bar by circlip for shaft, make slip cap 13 outer moving, the lower end that drives swelling connecting rod 10 is outwards mobile, the 10 pulling swelling watt 7 downward translations of swelling connecting rod, finish closing up of swelling watt, so that the smooth installation of steel coil strip.

When pull bar 17 moves to the inside, driving the sleeve bearing chamber by connecting plate moves inward, sleeve bearing chamber 13 passes to the first inner ring sleeve 21 by two-direction thrust bearing 20 with power, the first inner ring sleeve 21 with force transmission to by on the dish spring support ring 19, the 18 stressed contractions of disk spring group, disk spring group 18 with force transmission to disc spring sleeve 15, disc spring sleeve 15 promotes to be threaded in the nut 16 of tie rod end, nut drives pull bar and moves inward, slip cap 13 is mobile to the inside, the lower end that drives swelling connecting rod 10 moves inward, swelling connecting rod 10 promote swellings watts 7 upwards translation open, finish the swelling process of material volume.

The length of above-mentioned disc spring sleeve 15 should guarantee when butterfly spring group 18 does not stress fully, distance between the bottom outside of disc spring sleeve 15 and the two-direction thrust bearing 20 is greater than the decrement of butterfly spring, in order to avoid butterfly spring group 18 contacts with two-direction thrust bearing 20 because of disc spring sleeve 15 when compression, the problem that butterfly spring group 18 can't continue to compress occurs.

The supporting structure of above-mentioned turnbarrel 27 is selected single thrust bearing, select the structure of two-direction thrust bearing in the support and contracting mechanism, because in actual production process, angle is as shown in Figure 1 arrived in swelling watt impossible swelling, can only swelling to the position shown in the left first half of Fig. 2 b, the size that this part represents is the theoretical internal diameter of material volume.If swelling is to angle shown in Figure 1, namely support link is vertical with the axis of pull bar 17, and swelling watt swelling is to full-size so.At the internal diameter size of steel coil strip during greater than theoretical size, that swelling watt just can't the swelling steel coil strip or has been tied with the inner tube of a tyre paper web of steel band.So swelling watt in fact can not swelling to full-size, should keep one less than 90 ° angle with axis, maintain enough frictional force for the weight of bearing steel coil strip and to innermost layer steel band or paper web like this, support link and swelling connecting rod just produce an axial force to corresponding gusset, and be delivered on slip cap and the turnbarrel 27, make the two that relative trend that expands outwardly be arranged respectively, therefore all should adopt thrust bearing for this trend in the supporting structure of turnbarrel 27 and in the support and contracting mechanism, this thrust bearing can bear the axial force that this trend produces.Again because, thrust bearing in the support and contracting mechanism also will be when pull bar outwards moves, bearing (ball) cover imposes on its outside active force, therefore the thrust axis in the sleeve bearing chamber 13 is promised to adopt and can be born the two-direction thrust bearing of bi-directional axial load, and the block bearing of turnbarrel 27 adopts single thrust bearing to get final product.

The present embodiment is not limited to the said structure form to the installation form of above-mentioned two-direction thrust bearing 20 and the force transferring structure of pull bar 17, also can adopt other mounting structure and force transferring structure, see also Fig. 4, pull bar 17 is provided with the outside that should be positioned at the inner ring of two-direction thrust bearing 20 for the 6th shaft shoulder 172, the six shaft shoulders that inwardly promote two-direction thrust bearing 20.The 6th shaft shoulder has directly substituted the second inner ring sleeve that is installed on the first inner ring sleeve, and the circlip for shaft that is used for holding out against the first inner ring sleeve and the second inner ring sleeve.Also can cancel dish spring support ring 19, dish spring group 18 directly acts on elastic force on the outer face of the first inner ring sleeve 21.

In the present embodiment, start cylinder 33 has two.See also Fig. 1 and Fig. 3, the start cylinder cylinder bar of pull bar stretches out to the right on the left of being used for driving, and the start cylinder afterbody that is used for driving left side pull bar is installed in left side vertical plate.Two groups of four displacement cylinders 33 are installed in the casing alternately, and two cylinders that become a group are on a pair of linea angulata, and the cylinder bar is all towards away from being stretched out by the pull bar direction of its drive, and the piston rod of each cylinder is the link of boards by connecting plate and sleeve bearing outside all.

See also Fig. 1, Fig. 3, the cylinder bar of start cylinder 33 is hinged with the end of connecting plate 35 by connector 36.

See also Fig. 1, scatter in order to prevent the inside side of steel band in the steel coil strip, be provided with Internal baffle assembly 2 at drive socket 28, drive socket 28 is packed in the outside of turnbarrel 13, the Internal baffle assembly is packed in the outside of drive socket 28, drive socket 28 outer ends are provided with the shaft shoulder for Internal baffle assembly inboard, location, and the outside of Internal baffle assembly is held out against by Internal baffle locating ring 29, Internal baffle locating ring 29 by screw fastening on drive socket 28.

Such as Fig. 2 a～Fig. 2 b and shown in Figure 1, the operation principle of the present embodiment is:

One) shown in Fig. 2 a the first half, before the steel belt for lifting volume, the displacement cylinder group of respective side is shunk, it is outwards mobile that displacement cylinder drives the sleeve bearing chamber by connecting plate, the sleeve bearing chamber promotes the inner outer ring of two-direction thrust bearing by the bearing (ball) cover that is connected with it, two-direction thrust bearing promotes the first inner ring sleeve and the second inner ring sleeve, the circlip for shaft that the first inner ring sleeve and the second inner ring sleeve outwards move by the pull bar pushing drawing rod.Because pull bar and slip cap are connected in the axial direction, slip cap is also along with pull bar is outwards mobile together, the outer gusset of slip cap that is packed on the slip cap is also thereupon outwards mobile together, angle between swelling connecting rod and the axis reduces, angle between support link and the axis reduces simultaneously, the circular arc of swelling watt edge take the distance between two pin joints of support link and swelling connecting rod as radius is outwards mobile, and the external diameter of simultaneously swelling watt also dwindles thereupon.When the outer gusset of the inner reinforced plate of swelling watt and turnbarrel contacted, the external diameter of swelling watt was retracted to minimum of a value, and start this moment cylinder still may not shrink and put in place.

Because the axial location of inboard positioner on swelling watt gusset can be regulated, so before the steel belt for lifting volume, need to adjust the position of determining inboard positioner.If directly steel coil strip is placed in the swelling watt, the standard of neither one location, the workman determines the position of steel coil strip entirely by rule of thumb, so very possible bigger than normal or less than normal, if steel coil strip is excessively near apart from the outer end, will cause swelling watt after swelling, the inboard of steel coil strip still can't touch on the square tube of Internal baffle, steel coil strip does not have the location, side, and the steel band that keeps to the side most still might subside.If inboard positioner is excessively far away apart from the outer end, although can utilize the square tube of Internal baffle accurately locates the side of steel coil strip, but can increase the distance of the friction of steel coil strip and swelling watt support, for the steel coil strip that does not have paper web, this is with the most inboard steel strip surface in the heavy wear steel coil strip, and the wire feed when administration core welding wire is produced follow-up drawing work or use brings difficulty; For the steel coil strip that has paper web as the inner tube of a tyre, although there is not the problem of the steel strip surface of wearing and tearing, also can strengthen the wearing and tearing to recycled paper web.And except wear problem, when steel coil strip and swelling watt relatively moved, frictional force needed the active force of start cylinder to overcome, and undoubtedly can increase the load of start cylinder, might cause the increase of start cylinder size.After having increased inboard positioner, can be after once adjusting to the right place, it is carried out fastening, just a good reproducibility has been arranged during each upper volume, the position reference of accurate positioning need not again to adjust, and can avoid above-mentioned problem.

Two) steel coil strip is placed in the upper and axial location of swelling watt after, the start cylinder stretches out, connector on the start cylinder bar drives connecting plate, and then retract in drive sleeve bearing chamber, the tight two-direction thrust bearing of sleeve bearing constant pressure, and by two-direction thrust bearing, the first inner ring sleeve, dish spring support ring compression butterfly spring group.Because the butterfly spring group is not in compressive state when pull bar stretches out fully little when decrement will be more than the lifting steel coil strip in other words, so start this moment cylinder only is by pull bar compression butterfly spring group, and do not cause other variations, for example can suppose that the distance between this moment dish spring support ring and first shaft shoulder is 5mm, state is shown in the bottom of Fig. 2 a is divided at this moment.Certainly, if in order to reduce space in the casing and the start cylinder of selection of small stroke, swelling watt inner reinforced plate still is suspended from the outer gusset of turnbarrel in the time of can causing the contraction of start cylinder to put in place, both do not contact, if will expect in this case volume is placed in the swelling watt, can slip cap be moved outward by the swelling connecting rod, the nut by slip cap, pull bar and pull bar the inner on dish spring group, compresses force transmission with dish spring group.Certainly also might be above the two combination, i.e. the swelling watt inner reinforced plate segment distance that descends, after one section of dish spring group compression, swelling watt inner reinforced plate falls to placing on the outer gusset of turnbarrel, when then pull bar moves inward, again dish spring group is continued one section of compression.

When compression stress suffered on the butterfly spring group reaches steel coil strip need to be risen required active force the time, pull bar is under the elastic force effect of butterfly spring, inner mobile to turnbarrel, and then by swelling connecting rod and support link swelling watt is propped up, this moment, the center of gravity of steel coil strip constantly rose.

Because the angle of swelling watt swelling when swelling connecting rod and support link are greater than these two connecting rods and have just begun the lifting steel coil strip with respect to the angle of axis when putting in place, so stressed (butterfly spring stressed) during swelling on the connecting rod is less than the power when just beginning the lifting steel coil strip, the length of butterfly spring is greater than its length when just beginning the lifting steel coil strip, in lifting the process of steel coil strip, butterfly spring is in fact to discharge its decrement constantly, distance between dish spring support ring and first shaft shoulder is 1.5mm at this moment, and this moment, state was shown in the first half of Fig. 2 b.This moment, dish spring group still had certain compression surplus.So watt with steel coil strip after the complete swelling, the start cylinder still continues to release a segment distance in swelling, pull bar continues to shrink inwards, dish spring support ring compression butterfly spring group.Until reach start cylinder stroke, the lock of start cylinder interior with lock is locked the start cylinder, prevents that the start cylinder from losing thrust because of gas leakage, causes expecting to roll up the accident that flies out, distance between dish spring support ring and first shaft shoulder is 3.5mm at this moment, and this moment, state was shown in the latter half of Fig. 2 b.Be butterfly spring by the length of another compression in the swelling watt length that start cylinder bar continues to stretch out after the complete swelling with the steel coil strip increment of distance (and between the first inner ring sleeve and the circlip for shaft), then this length is 2mm.When the parts such as start cylinder, connecting plate, connector, pull bar are installed more accurately, this length is needed just less, and the second-compressed amount of spring is also just less, and the pressure during final uncoiler operation on the dish spring group is also just less.For above-mentioned reasons, in uncoiler when operation,, in other words, the axial force after the steel coil strip swelling is less, and after machine run got up, the two-direction thrust bearing in the outside and inboard thrust bearing stressed also less was conducive to improve the thrust bearing life-span.

The generation of second-compressed amount is not only in order to remedy the error when installing, and has the effect that tension force is provided concurrently.Because in fact in the swelling watt process that constantly struts, the swelling watt holding power for the material volume also only is to equal to expect the gravity rolled up, then the elastic force on butterfly spring this moment also with this holding power to corresponding.If there is not second-compressed, that swelling watt will be the same (owing to the geometrical relationship between swelling connecting rod, swelling watt, support link and the pull bar with not using dish spring group to the tension force of material volume, can not produce larger tension force, otherwise will cause structural damage) use so the advantage of disk spring group to give prominence to.And the generation of this second-compressed amount, then over against the generation of having answered additional tension force, and this tension force can not disappear because of the gas leakage/leakage of start cylinder, and this additional tension force exactly, guaranteeing can have enough frictional force between swelling watt and the material volume the most inboard (or material roll up paper web), raising speed/reductions of speed that control honest material convolution turns etc. have improved Security of the system and reliability.For example, the weight of material volume is 1000 kilograms, when swelling watt will be expected the complete swelling of volume, active force on the dish spring group is 800kgf, because the second-compressed of dish spring group, active force on the dish spring group has increased again 320kgf, increased again so the tension force of 400kgf between swelling watt and the material volume inboard, and this has just increased swelling watt and material and has rolled up frictional force between the inboard.

Owing to adopting uncoiler or the winder of swelling watt distensible material volume inner core to be different from I-beam wheel unwinding and rewinding machine.The material of I-beam wheel unwinding and rewinding machine volume is placed on the I-beam wheel (or being referred to as drum), and the rotary speed of I-beam wheel is to embed in the hole in the I-beam wheel by the finger on the unwinding and rewinding machine, stirs I-beam wheel and rotates to regulate its rotating speed.And adopt the rotating speed of the confidential adjusting material volume of material retractable of swelling watt to regulate its rotating speed by the frictional force that swelling watt and material are rolled up between the inner core, and frictional force is determined by tension force and coefficient of friction, and coefficient of friction be immobilize moving, so can only improve frictional force by increasing tension force.

In case the piston movement of self-locking cylinder puts in place, the active force that the cylinder of the uncoiler of the existing form of employing externally applies is and overcomes the required corresponding dish spring force of holding power of material volume weight, and for example the piston area of cylinder is 314cm ², air pressure is 4kgf/cm ², then the cylinder power that can externally apply in theory is 1256kgf, but in fact can only externally apply 800kgf after the self-locking, remaining 1256-800=456kgf can only act on the cylinder bottom of cylinder.For example the coefficient of friction between tensioner watt and the material volume is 0.3, then the frictional force of every swelling this moment watt can only be 300kgf.If tensioner puts in place before self-locking, cylinder no longer moves, and cylinder on the contrary can outwards be exported the 1256kgf active force, but has not had self-locking, in case cylinder leakage tester will be easy to expect to roll up the accident that flies out.

But after the utility model has increased butterfly spring, butterfly spring can also carry out second-compressed, swelling watt can increase extra tension force again, for example increase mentioned above the tension force of 400kgf, and each swelling watt total can increase again the frictional force of 120kgf.And the technical scheme in employing the present embodiment, raising tension force that can be larger, and then improve the unwinding and rewinding machine of employing swelling watt form to the control ability of material volume velocity variations, the acceleration that needs are larger in the time of can adapting to speed governing and/or material are rolled up the larger occasion of rotary inertia, have expanded the scope of application of such machine.

Three) after the swelling operation is finished; outer baffle is contained in the swelling watt; utilize two abutment sleeves and two guide posts to realize location to outer baffle; wherein two abutment sleeves have been finished point location jointly; long abutment sleeve has also been finished and has been prevented the location that swings; then use nut check, can play the protective effect to the outer side edges of steel coil strip.

After finishing the location, the outside of steel coil strip, can begin the passive band of putting.

Dish spring group in the present embodiment also can be replaced by the elasticity of compression parts of other type, other compressibility springs of mentioning in can the 11st piece of spring chapter 1 spring of Chemical Industry Press's version " mechanical design handbook " in 2002 the 3rd volume referring to Cheng Daxian chief editor, resilient sleeve for example, cylindroid helical-coil compression spring etc.Nut 16 can be replaced by the limited block of pin joint or the alignment pin by the pull bar axis.

Embodiment 2:

Most of identical with embodiment 1, just changed the connected mode of start cylinder and pull bar.In embodiment 1, stretch the contraction that realizes pull bar by the start cylinder, in the present embodiment, shrink the contraction that realizes pull bar by the start cylinder.

See also Fig. 6, take the pull bar in left side as example, the start cylinder 33 that drives pull bar 17 also is two one group, but different is cylinder bar towards the left side (near the direction of connected pull bar outer end) stretch out, the end of each start cylinder cylinder bar also is to be connected with a side arm end of connecting plate 35 by a connector 36.Different is: the connecting plate among the connecting plate Length Ratio embodiment 1 in the present embodiment is short, and opening direction is different from embodiment 1.

The present embodiment also provides the syndeton of another kind of start cylinder cylinder bar and pull bar:

Referring to Fig. 7, still take the pull bar in left side as example, drive the start cylinder 33 cylinder bars that pull bar moves and also stretch out towards the left side, but start cylinder 33 cylinder bars are different from the connected mode of pull bar 17 the inners.In Fig. 8, the cylinder bar that is used for the start cylinder group of driving pull bar 17 is provided with the connecting plate vertical with them 46, and the outer circumference surface of sleeve bearing chamber is provided with the otic placode vertical with the bearing chamber axis 711, and otic placode is fastenedly connected by bolt and connecting plate.Draw among the figure be sleeve bearing chamber and connecting plate by tying the scheme that connects, also can be directly with the sleeve bearing chamber directly and connecting plate integrally welded.

Embodiment 3:

The first structure: see also Fig. 1 and Fig. 8 a, the afterbody of each start cylinder all is hinged on the riser of casing, and the cylinder bar is connected with the sleeve bearing chamber by a lever 35.The sleeve bearing outside is connected with the second otic placode 712 that is parallel to the sleeve bearing chamber axis, start cylinder cylinder club head is equipped with Y-shaped connector 34, the two ends of lever 35 are hinged with the second otic placode 712 and Y-shaped connector 34 respectively, wherein be the elongated slot non-circular hole with the hinged part of the second otic placode, the middle part of lever 35 is hinged with the bearing 63 that is fixed on the casing riser, is connected with casing riser and the 17 homonymy settings of driven pull bar of bearing 63.

The second structure: see also Fig. 8 b, form the second structure that two start cylinders 33 of one group are connected with pull bar: be with the difference of above-mentioned the first structure, the afterbody of start cylinder 33 is directly installed on the riser of casing, lever 35 is used for should be elongated slot with the hinged junction, end of the second otic placode 712 and Y-shaped connector 34 and non-circular hole will cause lever to rotate otherwise the connection between the three is the structure of " bearing pin+circular hole ".

Below 2 kinds of leverages different from above two kinds of leverages be to have changed the connected mode of start cylinder and pull bar.Realize the contraction of pull bar in embodiment 1 by stretching of start cylinder cylinder bar, in the present embodiment, contraction by start cylinder cylinder bar realizes the contraction of pull bar.

The 3rd kind of structure: see also Fig. 9 a, be with the difference of the first structure among the embodiment 1: the second otic placode 712 of the middle part of lever 35 and sleeve bearing chamber 71 is hinged, the part hinged with the second otic placode is the elongated slot non-circular hole, one end and the Y-shaped connector 34 of lever 35 are hinged, the other end of lever 35 is hinged with the bearing 63 that is fixed on the casing riser, and bearing 63 and start cylinder were located at the both sides of pull bar 17 in 33 minutes.When the start cylinder stretched out, pull bar is side shifting outside casing, and a swelling watt radius is reduced; When the start cylinder shrank, pull bar moved to box house, made swelling watt spreading to setting diameter.

The 4th kind of structure: see also Fig. 9 b, be with the difference of above-mentioned the first structure, the afterbody of start cylinder 33 is directly installed on the riser of casing, cylinder bar 35 is used for should be elongated slot with the hinged junction, end of the first Y-shaped connector 34 with the hinged junction, middle part of Y-shaped connector 36 and non-circular hole will cause lever to rotate otherwise the connection between the three is the structure of " bearing pin+circular hole ".

Embodiment 4:

Directly connect a transition sleeve with bolt again on bearing (ball) cover, the other end directly is threaded with the head of piston rod, and this kind structure is comparatively simple, describes without accompanying drawing.

Embodiment 5:

See also Fig. 5, and the difference of embodiment 1 is: between first shaft shoulder of dish spring support ring 19 and pull bar, clamp and adjust packing ring 60, adjust packing ring 60 and be sleeved on the pull bar 17.Dish spring support ring 19 does not directly contact with first shaft shoulder 171 of pull bar, but contact with the adjustment packing ring 60 that is used for adjusted size, the internal diameter of adjusting packing ring 60 is identical with the external diameter of pull bar 17, the external diameter of adjusting packing ring 60 is identical with the internal diameter of the first inner ring sleeve 21, and can endwisely slip between the first inner ring sleeve 21.

In process of production, the internal diameter of steel band material volume can not be completely unified, and the utility model depends on the locking start cylinder of pulling pull bar and can move fully and put in place, utilizes lock in the start cylinder to guarantee not occur the material volume accident that flies out.But the position of material volume internal diameter and pull bar pulling is to have certain relation of interdependence, if the internal diameter of material volume is larger than theoretical value, after putting in place, the start cylinder cylinder bar that causes driving pull bar still can't increase to the position, also can't guarantee even again discharge decrement by butterfly spring, so just need to adjust the relative position of dish spring support ring and pull bar.For example, the position of dish spring support ring is moved inward, then needing increases thickness or the quantity of adjusting packing ring, so that the start cylinder is when moving to terminal, the external diameter of swelling watt is less than original steel coil strip internal diameter; Vice versa.Adjust packing ring various ways can be arranged: 1) for certain material volume internal diameter size, calculate the every increase certain size of internal diameter (for example 1mm or 0.5mm), the thickness of needed adjustment packing ring, each adjusts the internal diameter of corresponding a kind of material volume of thickness of packing ring, when the internal diameter of steel coil strip changes to some extent, increase or reduce corresponding adjustment packing ring number; The size of required adjusted size packing ring when 2) calculating respectively discharging volume internal diameter and be different size is made respectively the adjustment packing ring of coil diameter in corresponding each steel band, when the internal diameter of steel coil strip changes to some extent, and integral replacing adjusted size packing ring.

Embodiment 6:

Among the embodiment 1, swelling watts 7 is connected with the swelling connecting rod by swelling watt inner reinforced plate 8 and is connected with the outer gusset 12 of slip cap, the outer gusset plane of swelling connecting rod one end and slip cap is hinged, the other end and swelling watt inner reinforced plate plane is hinged, and the outer gusset of slip cap and slip cap are connected, and swelling watt inner reinforced plate and swelling watt are connected.Under the constraint that does not have other, in the swelling plane of movement of swelling watt, the swelling connecting rod can carry out with respect to slip cap the swing of single-degree-of-freedom, and swelling watt can be carried out the swing in the plane centered by the hole of swelling interlinking lever end.So take slip cap as coordinate system, swelling watt has two frees degree.So can claim to be connected for 2DOF between swelling watt and the slip cap.

In like manner, among the embodiment 1, a transverse plane of an end of two groups of support link 9 and swelling watt inner reinforced plate 8 is hinged, and outer gusset 11 planes of the other end and turnbarrel are hinged.Because two groups of support link are isometric, and two hinged holes of swelling watt inner reinforced plate and two groups of support link are and turnbarrel outward gusset and two groups of two holes that support link is hinged, and pitch-row is the same, and this has just consisted of parallel-crank mechanism.And the swelling watt mode with parallel-crank mechanism connects and turnbarrel, so swelling watt can only be in parallel with turnbarrel all the time mode, under support link and swelling connecting rod drive, carry out parallel, and any rotation or swing does not occur for self.Its position only is decided by the angle between the outer gusset of support link and turnbarrel, so be connected for single-degree-of-freedom between swelling watt and the turnbarrel.

So for 2DOF is connected, and be that 1 free degree is connected between the turnbarrel between swelling watt and the slip cap, so connecting, the M free degree described in the utility model content is connected with the N free degree, M+N=3 is this concept.

Except embodiment 1 described swelling watt bracing or strutting arrangement, can also adopt following method for supporting:

The first mechanism:

As shown in figure 10, this figure is for simplifying view, swelling connecting rod and support link are reduced to straight line, every place hinge hole is reduced to circle, and among the figure, slip cap watt links to each other by two groups of isometric swelling connecting rods and swelling, and two hinged holes of swelling watt inner reinforced plate and two groups of support link are and the outer gusset of slip cap and two groups of two holes that support link is hinged, pitch-row is the same, consists of parallel-crank mechanism, so swelling watt is that single-degree-of-freedom is connected with slip cap.And swelling watt is by one group of support link and the outer link of boards of turnbarrel, and swelling watt is that 2DOF is connected with turnbarrel.In the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with slip cap, is connected with turnbarrel in the mode of N free degree connection, and M is that 1, N is 2, and M+N=3.

In this structure, although the weight of material volume is by tensioner connecting rod and support link shared, be that some radial load is born by slip cap, but shown in Fig. 1, Fig. 2 a and Fig. 2 b, slip cap is when sliding into maximum distance, still some length is embedded in the turnbarrel, and radial load is born by turnbarrel, does not have the problem of utilizing two-direction thrust bearing to bear radial load.

The second mechanism:

As shown in figure 11, be different from Figure 10, the inner of swelling watt is not hinged by support link and inner sleeve gusset, but is connected with turnbarrel by parallel-crank mechanism, swelling watt is connected with single-degree-of-freedom.Can say that this programme is a kind of change example of scheme shown in Figure 10, in the breathing plane of movement of every tensioner watt, a swelling watt mode that connects with the M free degree is connected with slip cap, is connected with turnbarrel in the mode of N free degree connection, and M is that 1, N is 1, and M+N=2.Although M+N=2.But these are connected with the outer end and adopt parallel-crank mechanism to be connected with slip cap or turnbarrel to cause owing to swelling watt the inner, in fact this is a kind of constraint of crossing the location, if the hypotenuse of the parallel-crank mechanism of both sides---support link and swelling connecting rod all are isometric, arbitrary swelling connecting rod and arbitrary support link and that section swelling between them watt and the turnbarrel between them and slip cap length can consist of isosceles trapezoid, and swelling watt can be moved so.If support link and swelling connecting rod are not isometric, so, this mechanism has in fact just become structure, and swelling watt can't have been moved.

The third mechanism:

As shown in figure 12, be different from Figure 10, the inner of swelling watt is not hinged by support link and inner sleeve gusset, but hinged with Internal baffle.Because Internal baffle is fixedly connected with turnbarrel, swelling watt is that two-freedom is connected with Internal baffle, watt is that 2DOF is connected with turnbarrel so still can say swelling.Can say that this programme is a kind of change example of scheme shown in Figure 10, still can support " in the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with slip cap; the mode with the connection of the N free degree is connected with turnbarrel; M is that 1, N is 2, and M+N=3 ".

The 4th kind of mechanism:

As shown in figure 13, from embodiment 1 different being, whether swelling watt is connected with turnbarrel by parallel-crank mechanism, but by hinged with swelling watt the second connecting plate that is fixedly connected with and the direct plane of turnbarrel, the second connecting plate can be described as the extension of inner reinforced plate in the swelling watt, swelling watt is that single-degree-of-freedom is connected with turnbarrel like this, add that swelling watt is connected with the slip cap double freedom, so also can support " in the breathing plane of movement of every tensioner watt; a described swelling watt mode that connects with the M free degree is connected with slip cap, be connected with turnbarrel in the mode of N free degree connection, M is 2; N is 1, and M+N=3 ".

The 5th kind of mechanism:

As shown in figure 14, be different from Figure 10, whether swelling watt is connected with slip cap by parallel-crank mechanism, but by hinged with swelling watt the 3rd connecting plate that is fixedly connected with and the direct plane of slip cap, the 3rd connecting plate can be described as the extension of inner reinforced plate in the swelling watt, swelling watt is that single-degree-of-freedom is connected with slip cap like this, add that swelling watt is connected with the turnbarrel double freedom, so also can support " in the breathing plane of movement of every tensioner watt; a described swelling watt mode that connects with the M free degree is connected with slip cap, be connected with turnbarrel in the mode of N free degree connection, M is 1; N is 2, and M+N=3 ".

The 6th kind of mechanism:

As shown in figure 15, be different from Figure 14, swelling watt links to each other with the root of Internal baffle by a support link, so swelling watt is that double freedom is connected with turnbarrel, so also can support " in the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with slip cap; the mode with the connection of the N free degree is connected with turnbarrel; M is that 1, N is 2, and M+N=3 ".

The 7th kind of mechanism:

As shown in figure 16, the structure that is similar to CN201525655U has been adopted in support and the swelling of swelling watt, slip cap adopts parallel-crank mechanism to support the outer end of swelling watt, the inner of swelling watt is provided with a vertical gripper shoe 97, gripper shoe is connected with Internal baffle by a sliding pin 99, sliding pin embeds in the radial groove 98 of Internal baffle, one end of sliding pin is provided with the medial surface that step surface props up Internal baffle, the other end also is provided with the lateral surface that step surface props up gripper shoe, limits the swing of gripper shoe and Internal baffle.So tensioner watt can only be carried out radially slip with respect to Internal baffle, also is connected with the Internal baffle single-degree-of-freedom." so in the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with slip cap, is connected with turnbarrel in the mode of N free degree connection, and M is that 1, N is 2, and M+N=3 ".

The 8th kind of mechanism:

As shown in figure 17, tensioner watt inner reinforced plate passes the slotted hole of Internal baffle, and the both sides of Internal baffle arrange two rollers 96, each roller and Internal baffle frictional connection on tensioner watt respectively.Limit the swing of swelling watt by roller, so that tensioner watt can only be carried out radially slip with respect to Internal baffle, also be connected with the Internal baffle single-degree-of-freedom." so in the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with slip cap, is connected with turnbarrel in the mode of N free degree connection, and M is that 1, N is 2, and M+N=3 ".

The 9th kind of mechanism:

As shown in figure 18, swelling device and the bracing or strutting arrangement of tape feeding device among the CN101723195A " horizontal moving steel band recoiling device " have been adopted, in the uncoiler of this structure, the outer gusset of turnbarrel is provided with two the second bearing pins 95, and every the second bearing pin is installed on the first slotted hole 80 of tensioner watt inner reinforced plate.The outdoor gusset 12 of sliding bearing extends to the middle part of turnbarrel, and be provided with two the 3rd bearing pins 79, the 3rd bearing pin not only is through on second slotted hole 78 that parallels to the axis of the outer gusset of turnbarrel, and is through on the 3rd slotted hole 77 of inclination of tensioner watt inner reinforced plate.

During tensioner, inwardly moving in sliding bearing chamber 12, namely moves right among the figure, and the 3rd bearing pin also moves right, and simultaneously the 3rd slotted hole applied to top-right pressure, and tensioner watt is strutted.Two the second bearing pins are through in the first slotted hole simultaneously, have prevented the swing of tensioner watt inner reinforced plate in the diagram plane, have played guide effect.And the axial location of sliding bearing chamber is only depended in the motion of tensioner watt, still is single dof mobility mechanism.

Embodiment 7:

See also Figure 19, the present embodiment is from the different of embodiment 1:

Be provided with successively two-direction thrust bearing 20, butterfly spring group 18 and limiting component from the inner to the outer end in the sliding bearing chamber 13, limiting component is the 4th shaft shoulder 91 of the outdoor end of sliding bearing inboard,

Pull bar 17 is provided with the inner face that the 3rd shaft shoulder 95, the three shaft shoulders prop up the two-direction thrust bearing inner ring, and the outer ring of two-direction thrust bearing is installed in the first outer ring sleeve 93,

The sliding bearing chamber is provided with for the force application structure that props up outward two-direction thrust bearing, and this force application structure is the circlip for hole 92 that is installed on the sliding bearing chamber interior walls;

The first outer ring sleeve is being sleeved on the sliding bearing chamber internal surface with respect to the mode of axially outwards sliding along the sliding bearing chamber in the sliding bearing chamber, the first outer ring sleeve is beyond the outer outer ring of two-direction thrust bearing, and be provided with for the 5th shaft shoulder 90 that holds out against outward the outer outer ring of two-direction thrust bearing, the butterfly spring group acts directly on elastic force on the outer face of the first outer ring sleeve.The inner of the first outer ring sleeve also is provided be used to holding out against the bearing (ball) cover 14 of two-direction thrust bearing by inner outer ring.

The inboard of the inner ring of two-direction thrust bearing on pull bar, also be fixed with the second inner ring sleeve, it is identical that the second inner ring sleeve 22 is installed in the mode that the second inner ring sleeve is installed on the first inner ring sleeve among mode and effect and the embodiment 1 on the pull bar, do not repeat them here.

The present embodiment can also be set up dish spring support ring between the first inner ring sleeve and butterfly spring group, dish spring support ring can so that near the osculum of that dish spring of the first inner ring sleeve towards the first inner ring sleeve, if there is not dish spring support ring, the large mouth of that dish spring of so the most close the first inner ring sleeve is directly towards the first inner ring sleeve, and arranging of dish spring support ring increased the flexibility that the butterfly spring group is arranged.Same this dish spring support ring also can be arranged between butterfly spring group and the 4th shaft shoulder, has also improved the flexibility that the butterfly spring group is arranged near the dish spring at the 4th shaft shoulder place.This dish spring support ring illustrated in embodiment 1, repeated no more, and did not also look out in the drawings.

The present embodiment can also arrange disc spring sleeve beyond the external diameter of dish spring, to live the circular runout of dish spring from the external diameter constraint.Maybe the second inner ring sleeve can be prolonged, extend to the inboard of butterfly spring group, be equivalent to increase pull bar diameter in this section, from the circular runout of internal diameter constraint dish spring.The present embodiment repeats no more, and does not also look out in the drawings.

Embodiment 8:

As shown in figure 20, also clamped adjusted size packing ring 60 between butterfly spring group and the first outer ring sleeve, the effect of adjusted size packing ring and form can be referring to embodiment 5.

Embodiment 9:

See also Figure 21, be from the different of embodiment 1, indoor limiting component, two-direction thrust bearing 20, the first Compress Spring 18 that is installed on the push rod that be provided with successively from the inner to the outer end of sliding bearing, limiting component is the nut 16 that is through on the external screw thread of push rod 89 the inners in the present embodiment, push rod is provided with for first shaft shoulder, 171, the first Compress Springs that inwardly promote the first Compress Spring and is installed between first shaft shoulder of nut and push rod; The indoor end of sliding bearing also is connected with for the force application structure that inwardly props up two-direction thrust bearing, and the present embodiment is for the bearing (ball) cover 14 that compresses two-direction thrust bearing.

The inner ring of two-direction thrust bearing is installed on the first inner ring sleeve 19,

The first inner ring sleeve is being sleeved on the push rod with respect to the mode of push rod along push rod shaft to outside slip, the outer end of the first inner ring sleeve outwards leans out the outer outer ring of two-direction thrust bearing and is provided with for second shaft shoulder, 94, the first Compress Springs that inwardly hold out against the two-direction thrust bearing inner ring elastic force is acted on the outer face of the first inner ring sleeve.

Drawn dish spring support ring, disc spring sleeve and adjusted size packing ring among this figure, but these parts are omissible, its reason sees embodiment 1 for details.

What select in the present embodiment is first shaft shoulder, can also be sleeved on the axle sleeve on the push rod instead or be threaded in locknut on the push rod.

Embodiment 10:

See also Figure 22, from embodiment 9 different being, indoor two-direction thrust bearing 20, butterfly spring group 18 and the limiting component of being provided with successively from the outer end to the inner of sliding bearing, limiting component in the present embodiment is the nut 16 that is through on the push rod, push rod 89 is provided with the 6th shaft shoulder 172, the 6th shaft shoulder props up the outer face of two-direction thrust bearing inner ring, and the outer ring of two-direction thrust bearing is installed in the first outer ring sleeve 93

The sliding bearing chamber is provided with for the force application structure that props up two-direction thrust bearing to the inner, and the present embodiment is circlip for hole 92;

The first outer ring sleeve is being sleeved on the sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, and be provided with for holding out against outward five shaft shoulder 90 of two-direction thrust bearing by inner outer ring, the butterfly spring group acts on elastic force on the inner face of the first inner ring sleeve directly or indirectly.

Embodiment 11:

See also Figure 23, be from the different of embodiment 1, the inner of pull bar is provided with slip cap 87, slip cap is connected with the start cylinder, the start cylinder is self-locking cylinder 33 in the present embodiment, and the outer end of pull bar is connected with breathing mechanism, and breathing mechanism also links to each other with swelling watts 7, swelling watt links to each other with turnbarrel by support link 9

Breathing mechanism comprises sliding bearing chamber 13; The outside of sliding bearing chamber is provided with the outdoor gusset 12 of sliding bearing, watt is connected by swelling connecting rod 10 and swelling;

The indoor two-direction thrust bearing 20 that is sleeved on the pull bar that is provided with of sliding bearing, and at the first stopping means and second stopping means of the indoor two-direction thrust bearing of sliding bearing, wherein the first stopping means is that the 5th shaft shoulder 90, the second stopping means of the outdoor end of sliding bearing are the bearing (ball) covers 15 that is packed in the indoor end of sliding bearing; Be provided with the 3rd stopping means and the 4th stopping means in the two-direction thrust bearing both sides on the pull bar, the 3rd stopping means is that the 7th shaft shoulder 85, the four stopping means of pull bar outer end are the second inner ring sleeve 22 that is packed on the pull bar;

Be provided with butterfly spring group 18 in the slip cap, be connected in the 5th limiting component and the 6th limiting component on the sliding cylinder, the butterfly spring group is installed between the 5th limiting component and the 6th limiting component, the 5th limiting component is that the 8th shaft shoulder 83, the six limiting components on the slip cap inwall are the circlip for hole 92 on the slip cap inwall; Pull bar is provided with the 7th limiting component and the 8th limiting component, dish spring overcoat has disc spring sleeve 15, the butterfly spring group and be installed in the 7th limiting component and the 8th limiting component between, the 7th stopping means is that first shaft shoulder, 171, the eight stopping means are the nut 16 that is connected to pull bar the inner.

The present embodiment is described is that what to adopt is the mode of pull bar, can also adopt the mode of push rod to promote material volume distensible material volume, after those skilled in the art reads this specification, need not creative work and can make this variation.Therefore repeat no more.

Embodiment 12:

As shown in figure 24, described in a kind of uncoiler, figure is to have adopted the support reduction device of describing among the embodiment 1, also can adopt the described technical scheme of other embodiment.Also comprise base 1 and the casing that is fixedly connected with base 1, casing comprise base plate 4 and affixed thereon about two risers 32, a bearing sleeve 26 is established in the outside of two risers 32 in left side.One group of start cylinder is established in the inboard of riser 32, and every group of start cylinder drives with its homonymy setting and be installed on pull bar 17 in this side bearing sleeve 26.Be provided with the sintered metal powder bearing of supporting rod 17 in the bearing sleeve 26.Above-mentioned start cylinder can be hydraulic cylinder with lock or cylinder with lock.

Bearing sleeve 26 be an end with the sleeve of flange, wherein flange section is fastened on the riser 32 of casing.Be provided with girt 17 in the bearing sleeve 26, the inner of girt 17 is connected with the cylinder bar of the one group of start cylinder that arranges with its homonymy, and start cylinder driving girt 17 moves in or out; The outer end of girt 17 links to each other with support and contracting mechanism.The bearing sleeve 26 outer turnbarrels 27 that are provided with, turnbarrel 27 is installed on the bearing sleeve 26 in the mode that axial restraint circumferentially rotates.From away from the end of flange, circlip for shaft 23, deep groove ball bearing 24 and needle bearing 25 are installed successively on the excircle of bearing sleeve 26, bearing sleeve 26 is by the outer end of above-mentioned parts carry turnbarrel 27; The inner to turnbarrel 27, supporting structure is positioned on the excircle of bearing sleeve 26, and be positioned at the end near flange section, comprise needle bearing, single thrust bearing 31 and the sealing ring installed successively from away from flange, between the outer ring of the outer ring of needle bearing and single thrust bearing 31, be provided with lining 30 between bearing.

The present embodiment is fixed with brake disc 6 in the inner of drive socket 28, and brake disc also is provided with many disc brakes 5 perpendicular to the axis of turnbarrel on the casing, and brake disc is between two braking planes of disc brake.Damping unit in the time of can selecting the less disc brake of air pressure normally to move as the unwinding and rewinding machine is so that keep a suitable tension force on the steel band that discharges.Select the larger one or more disc brakes of air pressure as brake apparatus.

Embodiment 13;

As shown in figure 25, be with the difference of embodiment 12: drive socket 28 is connected with chain-drive mechanism, and chain-drive mechanism is driven by motor reducer 61, and motor reducer 61 is installed on the casing.This unreeling machine not only can carry out initiatively unreeling operation can also carry out the rolling operation.

Embodiment 14:

See also Figure 25, be from the different of embodiment 1, above-mentioned support and contracting mechanism comprises that the inner is positioned at turnbarrel 27 ports and the outer end is positioned at the outer sliding bearing chamber 13 of this port of turnbarrel, this sliding bearing chamber 13 is in axial sliding connection with turnbarrel 27, internal-and external diameter cooperatively interacts, and relative rotation does not circumferentially occur.Outer end in sliding bearing chamber 13 has a shaft shoulder at excircle, and the inner of limit slippage bearing chamber 13 puts in the degree of depth of turnbarrel 27.It is that outer end portion is provided with outer gusset that sliding bearing chamber 13 is positioned at the outer part of port, between sliding bearing chamber 13 and every swelling watt inner reinforced plate 8, be equipped with swelling connecting rod 10, one end and the swelling watt inner reinforced plate 8 of swelling connecting rod 10 are hinged, and the other end is hinged on the outdoor gusset 12 of sliding bearing.The swelling connecting rod 10 that links to each other with same swelling watt inner reinforced plate and support link 9 are positioned at same plane and are splayed arranges.

In sliding bearing chamber 13, from the inner, be provided with the two-direction thrust bearing 20, dish spring support ring 19, disk spring group 18 and the disc spring sleeve 15 that are sleeved on successively on the pull bar 17, disk spring group 18 is contained in the disc spring sleeve 15, disc spring sleeve is bowl-type, the bottom of bowl is sleeved on the pull bar, and disc spring sleeve 15 is positioned at the outside of two-direction thrust bearing 20 and opening towards two-direction thrust bearing 20; The outer end of pull bar 17 passes the bottom of disc spring sleeve 15 and is provided with one section external screw thread, is connected with nut 16 on the screw thread of pull bar outer end, the bottom outside adjacency of nut 16 and disc spring sleeve 15.

The inner ring of two-direction thrust bearing 20 is installed between the first inner ring sleeve 21 and the second inner ring sleeve 22.The first inner ring sleeve 21 to be can being sleeved on the pull bar 17 along the modes that pull bar 17 axially outwards slides, and be larger matched in clearance between the pull bar 17, causes unnecessary wearing and tearing to avoid the first inner ring sleeve 21 and pull bar 17 to come in contact.The second inner ring sleeve 22 suits are fixed on the first inner ring sleeve 21.The Outboard Sections of the first inner ring sleeve 21 outer walls is provided with second shaft shoulder 94, and this second shaft shoulder props up the outside of two-direction thrust bearing 20 inner rings, and the lateral surface of the second inner ring sleeve 22 props up the inboard of two-direction thrust bearing 20 inner rings.The outer ring of two-direction thrust bearing 20 is installed in the sliding bearing chamber 13, and the outer end of sliding bearing chamber 13 is connected with bearing (ball) cover 14 by bolt, and this bearing (ball) cover 14 is a tubular construction, and the outer end of tubular is provided with flange, is used for being connected with the outer face of sliding bearing chamber; The inner of tubular props up the outer ring, the outside of two-direction thrust bearing 20, is used for the location of this outer ring.

Also be provided with a circlip for shaft 23 on the pull bar 17, circlip 23 is positioned at the inboard of the first inner ring sleeve 21 and the second inner ring sleeve 22, is used for promoting the first inner ring sleeve 21 and the second inner ring sleeve 22.Before each material loading, pull bar is extrapolated, so that the support reduction device is outwards mobile, and then drive swelling by the swelling connecting rod and watt close up with convenient upper volume, because required thrust is little, so be provided with a circlip for shaft 23 at pull bar, the installation site of this circlip for shaft 23 is the inboard of swelling first inner ring sleeve 21 when watt strutting fully.When pull bar 17 moves laterally, circlip 23 promotes two-direction thrust bearing 20 by the first inner ring sleeve 21 and the second inner ring sleeve 22, two-direction thrust bearing 20 promotes sliding bearing chamber 13 by bearing (ball) cover 14, make sliding bearing chamber 13 outer moving, the lower end that drives swelling connecting rod 10 is outwards mobile, swelling connecting rod 10 pulling swelling watt 7 downward translations are finished closing up of swelling watt, so that the smooth installation of steel coil strip.

When pull bar 17 moves to the inside, the nut 16 that is threaded connection in its end promotes disc spring sleeve 15, disc spring sleeve 15 with force transmission on disk spring group 18, the 18 stressed contractions of disk spring group, be delivered to active force on the first inner ring sleeve 21 that is connected with two-direction thrust bearing 20 by dish spring support ring 19, the first inner ring sleeve 21 passes to sliding bearing chamber 13 by two-direction thrust bearing 20 with power, sliding bearing chamber 13 is mobile to the inside, the lower end that drives swelling connecting rod 10 moves inward, swelling connecting rod 10 promote swellings watts 7 upwards translation open, finish the swelling process of material volume.

In the present embodiment, start cylinder 33 has two.See also Figure 26 and Figure 27, the start cylinder cylinder bar that is used for the driving pull bar stretches out to the right, and the start cylinder afterbody of pull bar is installed in left side vertical plate on the left of being used for driving.Two displacement cylinders 33 are on a pair of linea angulata, and the cylinder bar is all towards away from being stretched out by the pull bar direction of its drive, and hinged with the two side arms top of the horizontally disposed V font of center line connecting plate 35, and the bottom of V font connecting plate 35 is connected with pull bar 17.The cylinder bar of start cylinder 33 is hinged with the side arm end of V font connecting plate 35 by connector 36.The hinged connection wye 34 that is positioned at tie rod end of V font connecting plate, this connection wye 34 is threaded in the inner end of pull bar 17, connection wye 34 adopts the locking nut locking that is connected on the pull bar 17, between locking nut and Y-shaped connector, install stop washer (GB/T 858-1988) additional, can limit connection wye with respect to the rotation of pull bar.In other words, owing to being that the plane is hinged between connection wye and the connecting plate, and connecting plate can not rotate, thus connection wye also can not rotate, so also just limited the rotation of pull bar.

The present embodiment is not limited to the said structure form to the installation form of above-mentioned two-direction thrust bearing 20 and the force transferring structure of pull bar 17, also can adopt other mounting structure and force transferring structure, see also Figure 28, pull bar 17 is provided with the inboard that is positioned at the inner ring of two-direction thrust bearing 20 for the 6th shaft shoulder 172, the six shaft shoulders that outwards promote two-direction thrust bearing 20.The 6th shaft shoulder has directly substituted the second inner ring sleeve that is installed on the first inner ring sleeve, and the circlip for shaft that is used for holding out against the first inner ring sleeve and the second inner ring sleeve.Also can cancel dish spring support ring 19, dish spring group 18 directly acts on elastic force on the outer face of the first inner ring sleeve 21.

Can also clamp adjusted size packing ring 60 between butterfly spring group and the first outer ring sleeve, as shown in figure 29, the effect of adjusted size packing ring and form can be referring to embodiment 5.

Embodiment 15:

Most of identical with embodiment 14, just changed the connected mode of start cylinder and pull bar.In embodiment 14, stretch the contraction that realizes pull bar by the start cylinder, in the present embodiment, shrink the contraction that realizes pull bar by the start cylinder.

See also Figure 30, take the pull bar in left side as example, the start cylinder 33 that drives pull bar 17 also is two one group, but different is cylinder bar towards the left side (near the direction of connected pull bar outer end) stretch out, the end of each start cylinder cylinder bar also is to be connected with a side arm end of V-arrangement connecting plate 35 by a connector 36.Different is: the connecting plate among the connecting plate Length Ratio embodiment 1 in the present embodiment is short, and opening direction is different from embodiment 1, the top of V-arrangement connecting plate 35 approaches the outer end of connected pull bar 17 than its bottom in the present embodiment, so with at the bottom of two V-arrangement connecting plates that two groups of pull bar start cylinders are connected dolly is directly arranged respectively.35 of connecting plates being responsible for push-and-pull left side pull bar move in left zone at the machine center line, the connecting plate of being responsible for push-and-pull right side pull bar only moves in right zone at the machine center line, the inner bottom part of V font connecting plate is relative and hinged with the connection wye on the pull bar, be that connection wye 34 on the pull bar is in the space between the two side arms of V font connecting plate, the distance between V font connecting plate 35 two side arms should be greater than the width of connection wye.

Referring to Figure 31 a, still take the pull bar in left side as example, drive the start cylinder 33 cylinder bars that pull bar moves and also stretch out towards the left side, but start cylinder 33 cylinder bars are different from the connected mode of pull bar 17 the inners.In Figure 11, the cylinder bar that be used for to drive the start cylinder group of pull bar 17 is provided with the connecting plate vertical with them 46, and pull bar 17 is connected with the U-shaped latch fitting by branch sleeve 47 with the middle part of connecting plate 46 and is connected.Branch sleeve 47 is arranged on the inboard of connecting plate 46, and the middle inside of branch sleeve 47 is provided with a gap; Be provided with adaptive two stopper slots parallel with above-mentioned gap in the inner end cylindrical both sides of pull bar, the lateral surface of stopper slot is the inclined-plane; U-shaped latch fitting 48 is inserted in the stopper slot of pull bar 17, inside and outside both sides are by the madial wall cramping of gap bottom surface and stopper slot, the side arm cramping of U-shaped latch fitting 48 is between at the bottom of gap wall and the stopper slot, the side arm of U-shaped latch fitting 48 is provided with the inclined-plane adaptive with the inclined-plane of stopper slot, the angle on this inclined-plane should be in the friction self-locking scope, can guarantee that the U-shaped latch fitting can not deviate from.The structure that U-shaped latch fitting 48 is inserted in the inboard gap of branch sleeve can also prevent that pull bar from rotating.

The 3rd start cylinder cylinder bar that the present embodiment provides and the syndeton of pull bar, see also Figure 31 b, still take the pull bar 17 in left side as example, the start cylinder 33 cylinder bars that the driving pull bar moves stretch out towards the left side, the cylinder bar that is used for the start cylinder group of driving pull bar 17 is provided with the connecting plate vertical with them 46, the outer middle side part of connecting plate 46 is provided with contiguous block 49, and contiguous block 49 is provided with T-shaped groove; The inner end of pull bar is provided with radius greater than the protuberance of its adjacent part, and protuberance is contained in the T-shaped groove.The direction of T-shaped groove is 45 ° with the direction of the paired start cylinder cylinder bar line of centres.

Embodiment 16:

The first structure: see also Figure 32 a, the afterbody of each start cylinder all is hinged on the riser of casing, and the cylinder bar is connected with the inner of pull bar 17 by a lever 35.The inner of pull bar 17 is connected with the first Y-shaped connector 34, start cylinder cylinder club head is equipped with the second Y-shaped connector 36, the two ends of lever 35 are hinged with the first Y-shaped connector 34 and the second Y-shaped connector 36 respectively, wherein be the elongated slot non-circular hole with the hinged part of the first Y-shaped connector, the middle part of lever 35 is connected with casing riser and the 17 homonymy settings of driven pull bar of bearing 63 with to be fixed in casing riser upper bracket 63 hinged.

The second structure: see also Figure 32 b, form the second structure that two start cylinders 33 of one group are connected with pull bar: be with the difference of above-mentioned the first structure, the afterbody of start cylinder 33 is directly installed on the riser of casing, lever 35 is used for should be elongated slot with the hinged junction, end of the first Y-shaped connector 34 and the second Y-shaped connector 36 and non-circular hole will cause lever to rotate otherwise the connection between the three is the structure of " bearing pin+circular hole ".

The 3rd kind of structure: see also Figure 33 a, be with the difference of the first structure among the embodiment 16: the middle part of lever 35 and the second Y-shaped connector 36 are hinged, one end of lever 35 and the first Y-shaped connector 34 are hinged, wherein be the elongated slot non-circular hole with the hinged part of the first Y-shaped connector, the other end of lever 35 is hinged with the bearing 63 that is fixed on the casing riser, and bearing 63 and start cylinder were located at the both sides of pull bar 17 in 33 minutes.When the start cylinder stretched out, pull bar is side shifting outside casing, and a swelling watt radius is reduced; When the start cylinder shrank, pull bar moved to box house, made swelling watt spreading to setting diameter.

The 4th kind of structure: see also Figure 33 b, be with the difference of above-mentioned the first structure, the afterbody of start cylinder 33 is directly installed on the riser of casing, cylinder bar 35 is used for should be elongated slot with the hinged junction, end of the first Y-shaped connector 34 with the hinged junction, middle part of the second Y-shaped connector 36 and non-circular hole will cause lever to rotate otherwise the connection between the three is the structure of " bearing pin+circular hole ".

The 5th kind of structure: with the tail end of pull bar, an end that namely is positioned at casing is made a sleeve with internal thread, and the internal thread of sleeve directly is connected with the piston rod of cylinder, and this kind structure is comparatively simple, describes without accompanying drawing.

Embodiment 17:

See also Figure 24, the present embodiment is from the different of embodiment 14:

Be provided with successively two-direction thrust bearing 20, butterfly spring group 18 and limiting component from the outer end to the inner in the sliding bearing chamber 13, limiting component is the 4th shaft shoulder 91 of the indoor end of sliding bearing inboard,

Pull bar 17 is provided with the outer face that the 3rd shaft shoulder 95, the three shaft shoulders prop up the two-direction thrust bearing inner ring, and the outer ring of two-direction thrust bearing is installed in the first outer ring sleeve 93,

The sliding bearing chamber is provided with for the force application structure that props up two-direction thrust bearing to the inner, and this force application structure is the circlip for hole 92 that is installed on the sliding bearing chamber interior walls;

The first outer ring sleeve is being sleeved on the sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, the first outer ring sleeve is beyond the outer outer ring of two-direction thrust bearing, and be provided with for holding out against outward five shaft shoulder 90 of two-direction thrust bearing by inner outer ring, the butterfly spring group acts directly on elastic force on the inner face of the first outer ring sleeve.The outer end of the first outer ring sleeve also is provided be used to the bearing (ball) cover 14 that holds out against the outer outer ring of two-direction thrust bearing.

The inboard of the inner ring of two-direction thrust bearing on pull bar, also be fixed with the second inner ring sleeve, it is identical that the second inner ring sleeve 22 is installed in the mode that the second inner ring sleeve is installed on the first inner ring sleeve among mode and effect and the embodiment 14 on the pull bar, do not repeat them here.

The present embodiment can also be set up dish spring support ring between the first inner ring sleeve and butterfly spring group, dish spring support ring can so that near the osculum of that dish spring of the first inner ring sleeve towards the first inner ring sleeve, if there is not dish spring support ring, the large mouth of that dish spring of so the most close the first inner ring sleeve is directly towards the first inner ring sleeve, and arranging of dish spring support ring increased the flexibility that the butterfly spring group is arranged.Same this dish spring support ring also can be arranged between butterfly spring group and the 4th shaft shoulder, has also improved the flexibility that the butterfly spring group is arranged near the dish spring at the 4th shaft shoulder place.This dish spring support ring illustrated in embodiment 14, repeated no more, and did not also look out in the drawings.

Embodiment 18:

As shown in figure 35, also clamped adjusted size packing ring 60 between butterfly spring group and the first outer ring sleeve, the effect of adjusted size packing ring and form can be referring to embodiment 5.

Embodiment 19:

See also Figure 36, be from the different of embodiment 14, sliding bearing is indoor from the outer end to inner limiting component, two-direction thrust bearing 20, the first Compress Spring 18 that is installed on the push rod that be provided with successively, limiting component is the nut 16 that is through on the external screw thread of push rod 89 outer ends in the present embodiment, push rod is provided with for first shaft shoulder, 171, the first Compress Springs that outwards promote the first Compress Spring and is installed between first shaft shoulder of nut and push rod; The indoor end of sliding bearing also is connected with for the force application structure that outwards props up two-direction thrust bearing, and the present embodiment is for the bearing (ball) cover 14 that compresses two-direction thrust bearing.

The inner ring of two-direction thrust bearing is installed on the first inner ring sleeve 19, the first inner ring sleeve is being sleeved on the push rod with respect to the mode of push rod along push rod shaft to inside slip, the inner of the first inner ring sleeve inwardly leans out two-direction thrust bearing by inner outer ring and is provided with for second shaft shoulder, 94, the first Compress Springs that outwards hold out against the two-direction thrust bearing inner ring elastic force is acted on the inner face of the first inner ring sleeve.

Embodiment 20:

See also Figure 37, from embodiment 9 different being, indoor two-direction thrust bearing 20, butterfly spring group 18 and the limiting component of being provided with successively from the inner to the outer end of sliding bearing, limiting component in the present embodiment is the nut 16 that is through on the push rod, push rod 89 is provided with the 6th shaft shoulder 172, the 6th shaft shoulder props up the inner face of two-direction thrust bearing inner ring, and the outer ring of two-direction thrust bearing is installed in the first outer ring sleeve 93

The sliding bearing chamber is provided with for the force application structure that props up outward two-direction thrust bearing, and the present embodiment is circlip for hole 92;

The first outer ring sleeve is being sleeved on the sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, and be provided with for the 5th shaft shoulder 90 that holds out against the outer outer ring of two-direction thrust bearing to the inner, the butterfly spring group acts on elastic force on the outer face of the first inner ring sleeve directly or indirectly.

Embodiment 21:

See also Figure 38, be from the different of embodiment 14, the inner of pull bar is provided with sleeve bearing chamber 87, the sleeve bearing chamber is connected with the start cylinder, the start cylinder is self-locking cylinder 33 in the present embodiment, and the outer end of pull bar is connected with breathing mechanism, and breathing mechanism also links to each other with swelling 7, swelling watt links to each other with turnbarrel by support link 9

Breathing mechanism comprises sliding sleeve 88; The outside of sliding sleeve is provided with the outer gusset 84 of sliding sleeve and watt is connected by swelling connecting rod 10 and swelling;

The indoor two-direction thrust bearing 20 that is sleeved on the pull bar that is provided with of sleeve bearing, and at the first stopping means and second stopping means of the indoor two-direction thrust bearing of sleeve bearing, wherein the first stopping means is that the 5th shaft shoulder 90, the second stopping means of the outdoor end of sleeve bearing are the bearing (ball) covers 15 that is packed in the indoor end of sleeve bearing; Be provided with the 3rd stopping means and the 4th stopping means in the two-direction thrust bearing both sides on the pull bar, the 3rd stopping means is that the 7th shaft shoulder 85, the four stopping means of pull bar inner end are the second inner ring sleeve 22 that is packed on the pull bar;

Be provided with butterfly spring group 18 in the sliding sleeve, connect the 5th limiting component and the 6th limiting component on the sliding sleeve, the butterfly spring group is installed between the 5th limiting component and the 6th limiting component, the 5th stopping means is that first shaft shoulder, 171, the six stopping means are the nut 16 that is connected to the pull bar outer end.Pull bar is provided with the 7th limiting component and the 8th limiting component, dish spring overcoat has disc spring sleeve 15, the butterfly spring group and be installed in the 7th limiting component and the 8th limiting component between, the 7th limiting component is that the 8th shaft shoulder 83, the eight limiting components on the sliding sleeve inwall are the circlip for hole 92 on the sliding sleeve inwall;

Although the above is described preferred embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to the above-mentioned specific embodiment, the above-mentioned specific embodiment only is schematic, be not restrictive, those of ordinary skill in the art is under enlightenment of the present utility model, do not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, 1. replace the swelling watt inner reinforced plate described in the utility model and the outer gusset of turnbarrel with hinged-support, be installed in respectively the inboard of swelling watt and the outside of turnbarrel, and hinged with support link, play the effect of supporting swelling watt; 2. will change 3 or more number into be used to the cylinder number that struts each side swelling watt, the cylinder that supports both direction still is crisscross arranged; 3. the parts or the component combination that have identical function among above each embodiment are replaced mutually, consisted of the technical scheme that does not have Direct function description among above each embodiment; 4. this specification has only been enumerated the embodiment of single-arm uncoiling machine and single armed unwinding and rewinding machine, and those skilled in the art can also design the embodiment of both arms unwinding and rewinding machine and both arms uncoiler, even can design vertical unwinding and rewinding machine and uncoiler; 5. in the utility model among all embodiment, turnbarrel all is that the mode with circumferential rotation is installed on the stop sleeve, can also cancel stop sleeve, directly turnbarrel is installed on the two side of casing in the mode that cantilevered supports, the start cylinder that is used for breathing is installed in the opposite side of casing.These all belong within the protection domain of the present utility model.

Claims

1. a support reduction device is characterized in that: be used for being provided with Compress Spring between the axial force parts of swelling in transmission.

2. support reduction device as claimed in claim 1, comprise some swellings watt of being arranged on the turnbarrel periphery, be installed in the described turnbarrel and the push-and-pull action bar that links to each other with self-locking air cylinder, the breathing mechanism that is installed in push-and-pull action bar outer end, it is characterized in that: be provided with two-direction thrust bearing in the breathing mechanism, between cylinder, push-and-pull action bar, two-direction thrust bearing and the breathing mechanism of the thrust that transmit to be used for swelling or pulling force, be provided with Compress Spring.

3. support reduction device as claimed in claim 2, described swelling watt are by supporting arrangement or directly link to each other with described turnbarrel or with Internal baffle on being installed in turnbarrel,

The outside of described breathing mechanism and described swelling watt are connected; Described breathing mechanism and push-and-pull action bar, swelling watt, turnbarrel or Internal baffle or above-mentioned four consist of mechanism with single degree of freedom with supporting arrangement is common in the breathing plane of movement of every tensioner watt, it is characterized in that: in the breathing plane of movement of every tensioner watt, a described swelling watt mode that connects with the M free degree is connected with sliding bearing chamber or sliding sleeve, the mode that connects with the N free degree is connected with turnbarrel, M, N are 1 or 2, and M+N=3.

4. support reduction device as claimed in claim 3, described push-and-pull action bar is pull bar, the inner of described pull bar is connected with the sleeve bearing chamber, the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that:

Described sleeve bearing is indoor from the outer end to inner two-direction thrust bearing, the first Compress Spring and the limiting component that is installed on the described pull bar that be provided with successively, described pull bar is provided with first shaft shoulder, described the first Compress Spring is installed between first shaft shoulder of described limiting component and described pull bar, and described pull bar is provided with for the force application structure that inwardly promotes described two-direction thrust bearing;

5. support reduction device as claimed in claim 3, described push-and-pull action bar is pull bar, the inner of described pull bar is connected with the sleeve bearing chamber, the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the inner to the outer end of described sleeve bearing, described pull bar is provided with the 3rd shaft shoulder, the 3rd shaft shoulder props up the inner face of two-direction thrust bearing inner ring, and the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve

Described sleeve bearing chamber is provided with for the force application structure that props up outward described two-direction thrust bearing;

Described the first outer ring sleeve is being sleeved on described sleeve bearing chamber internal surface with respect to the mode of axially outwards sliding along the sleeve bearing chamber in the sleeve bearing chamber, and be provided with for the 5th shaft shoulder that holds out against the outer outer ring of two-direction thrust bearing to the inner, described the first Compress Spring acts on elastic force on the outer face of described the first outer ring sleeve directly or indirectly.

6. support reduction device as claimed in claim 3, described push-and-pull action bar is push rod, the inner of described push rod is connected with the sleeve bearing chamber, the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that:

Indoor limiting component, two-direction thrust bearing, the first Compress Spring that is installed on the described push rod that be provided with successively from the inner to outer end of described sleeve bearing, described push rod is provided with for first shaft shoulder or the force application apparatus that inwardly promote described the first Compress Spring, and described the first Compress Spring is installed between first shaft shoulder or force application apparatus of described limiting component and described push rod;

The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve,

Described the first inner ring sleeve is being sleeved on the described push rod with respect to the mode of push rod along push rod shaft to outside slip, the outer end of described the first inner ring sleeve outwards leans out the outer outer ring of two-direction thrust bearing, and be provided with for second shaft shoulder that inwardly holds out against the two-direction thrust bearing inner ring, described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly.

7. support reduction device as claimed in claim 3, described push-and-pull action bar is push rod, the inner of described push rod is connected with the sleeve bearing chamber, the sleeve bearing chamber is by connecting plate or by leverage or directly be connected with the start cylinder, described breathing mechanism comprises slip cap, and the outside of described slip cap and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the outer end to the inner of described sleeve bearing, described push rod is provided with the 6th shaft shoulder, the 6th shaft shoulder props up the outer face of two-direction thrust bearing inner ring, and the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve

Described sleeve bearing chamber is provided with for the force application structure that props up described two-direction thrust bearing to the inner;

Described the first outer ring sleeve is being sleeved on described sleeve bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sleeve bearing chamber in the sleeve bearing chamber, and be provided with for holding out against outward five shaft shoulder of two-direction thrust bearing by inner outer ring, described the first Compress Spring acts on elastic force on the inner face of described the first inner ring sleeve directly or indirectly.

8. support reduction device as claimed in claim 3, the inner of described push-and-pull action bar is provided with slip cap, and described slip cap is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

The indoor two-direction thrust bearing that is sleeved on the described push-and-pull action bar that is provided with of described sliding bearing, and at the first stopping means and second stopping means of the indoor two-direction thrust bearing of sliding bearing; Be provided with the 3rd stopping means and the 4th stopping means on the described push-and-pull action bar in the two-direction thrust bearing both sides;

Be provided with the first Compress Spring in the described slip cap, be connected in the 5th limiting component and the 6th limiting component on the sliding sleeve, described the first Compress Spring is installed between the 5th limiting component and the 6th limiting component, described push-and-pull action bar is provided with the 7th limiting component and the 8th limiting component, and described the first Compress Spring is installed between described the 7th limiting component and described the 8th limiting component.

9. support reduction device as claimed in claim 3, described push-and-pull action bar is pull bar, and the inner of described pull bar is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component that is installed on the described pull bar that be provided with successively from the inner to outer end of described sliding bearing, described pull bar is provided with first shaft shoulder, described the first Compress Spring is installed between first shaft shoulder of described limiting component and described pull bar, and described pull bar is provided with for the force application structure that outwards promotes described two-direction thrust bearing;

The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve, described the first inner ring sleeve is being sleeved on the described pull bar with respect to the mode of pull bar along pull rod shaft to outside slip, described the first inner ring sleeve is in the outer outer ring of described two-direction thrust bearing, and be provided with for second shaft shoulder that inwardly holds out against the two-direction thrust bearing inner ring, described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly.

10. support reduction device as claimed in claim 3, described push-and-pull action bar is pull bar, and the inner of described pull bar is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the outer end to the inner of described sliding bearing, described pull bar is provided with the 3rd shaft shoulder, the 3rd shaft shoulder props up the outer face of two-direction thrust bearing inner ring, and the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve

Described sliding bearing chamber is provided with for the force application structure that props up described two-direction thrust bearing to the inner;

Described the first outer ring sleeve is being sleeved on described sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, and be provided with for holding out against outward five shaft shoulder of two-direction thrust bearing by inner outer ring, described the first Compress Spring acts on elastic force on the inner face of described the first outer ring sleeve directly or indirectly.

11. a support reduction device as claimed in claim 3, described push-and-pull action bar is push rod, and the inner of described push rod is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

Described sliding bearing is indoor from the outer end to inner limiting component, two-direction thrust bearing, the first Compress Spring that is installed on the described push rod that be provided with successively, described push rod is provided with for first shaft shoulder or the force application apparatus that outwards promote described the first Compress Spring, and described the first Compress Spring is installed between first shaft shoulder or force application apparatus of described limiting component and described push rod;

The inner ring of described two-direction thrust bearing is installed on the first inner ring sleeve, described the first inner ring sleeve is being sleeved on the described push rod with respect to the mode of push rod along push rod shaft to inside slip, the inner of described the first inner ring sleeve inwardly leans out two-direction thrust bearing by inner outer ring and is provided with for second shaft shoulder that outwards holds out against the two-direction thrust bearing inner ring, and described the first Compress Spring acts on elastic force on the inner face of described the first inner ring sleeve directly or indirectly.

12. a support reduction device as claimed in claim 3, described push-and-pull action bar is push rod, and the inner of described push rod is by connecting plate or by leverage or directly be connected with the start cylinder, and described breathing mechanism comprises the sliding bearing chamber; The outside of described sliding bearing chamber and described swelling watt are connected; It is characterized in that:

Indoor two-direction thrust bearing, the first Compress Spring and the limiting component of being provided with successively from the inner to the outer end of described sliding bearing, described push rod is provided with the 6th shaft shoulder, the 6th shaft shoulder props up the inner face of two-direction thrust bearing inner ring, and the outer ring of described two-direction thrust bearing is installed in the first outer ring sleeve

Described sliding bearing chamber is provided with for the force application structure that props up outward described two-direction thrust bearing;

Described the first outer ring sleeve is being sleeved on described sliding bearing chamber internal surface with respect to the mode of axially inwardly sliding along the sliding bearing chamber in the sliding bearing chamber, and be provided with for the 5th shaft shoulder that holds out against the outer outer ring of two-direction thrust bearing to the inner, described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly

13. support reduction device as claimed in claim 3, be coated with the push-and-pull action bar in the described turnbarrel, the inner of described push-and-pull action bar is provided with the sleeve bearing chamber, and described sleeve bearing chamber is characterized in that by connecting plate or by leverage or directly be connected with the start cylinder:

The indoor two-direction thrust bearing that is sleeved on the described push-and-pull action bar that is provided with of described sleeve bearing, and at the first stopping means and second stopping means of the indoor two-direction thrust bearing of sleeve bearing; Be provided with the 3rd stopping means and the 4th stopping means on the described push-and-pull action bar in the two-direction thrust bearing both sides;

Be provided with the first Compress Spring in the described sliding sleeve, be connected in the 5th limiting component and the 6th limiting component on the sliding sleeve, described the first Compress Spring is installed between the 5th limiting component and the 6th limiting component, described push-and-pull action bar is provided with the 7th limiting component and the 8th limiting component, and described the first Compress Spring is installed between described the 7th limiting component and described the 8th limiting component.

14. one kind such as claim 4,6,9, one of 11 described support reduction devices, have clamped the adjustment packing ring between first shaft shoulder of described the first Compress Spring and described pull bar, described adjusting pad snare is contained on the described pull bar.

15. one kind such as claim 5,7,10, one of 12 described support reduction devices, have clamped the adjustment packing ring between described the first Compress Spring and the first outer ring sleeve, described adjusting pad snare is contained on the inwall of described sleeve bearing chamber.

16. a uncoiler is characterized in that: described uncoiler adopts such as claim 1 or 2 or 3 described support reduction devices.

17. a unwinding and rewinding machine is characterized in that: described unwinding and rewinding machine adopts such as claim 1 or 2 or 3 described support reduction devices.