CN203076365U - Hot-rolling coiler mandrel - Google Patents
Hot-rolling coiler mandrel Download PDFInfo
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- CN203076365U CN203076365U CN 201220746741 CN201220746741U CN203076365U CN 203076365 U CN203076365 U CN 203076365U CN 201220746741 CN201220746741 CN 201220746741 CN 201220746741 U CN201220746741 U CN 201220746741U CN 203076365 U CN203076365 U CN 203076365U
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Abstract
The utility model relates to a hot-rolling coiler mandrel which is used for solving the technical problem of an existing mandrel of the type that the service life is shorter. The hot-rolling coiler mandrel disclosed by the utility model comprises a connection rod for connecting a sector plate and a spindle, and a plunger piston body with the top face which is close to the bottom face of the sector plate and the bottom face which is supported on an inclined plane of the spindle; a first pin shaft hole of a connection end of the connection rod and the spindle is a circular hole; and a second pin shaft hole of a connection end of the connection rod and the sector plate is a kidney-shaped hole with a long shaft which is arranged along the vertical direction of the connection rod, and a short shaft which is arranged along the transverse direction of the connection rod. The center of the plunger piston body is provided with a blind hole; the blind hole is internally provided with an elastic mechanism with a top face which supports the bottom face of the sector plate and a bottom face which supports the bottom face of the blind hole; the top face of the elastic mechanism is 3-6cm higher than the top face of the plunger piston body under the condition that the plunger piston body only bears the self gravity of the sector plate; and the difference of two times between the length of the long shaft and the length of the short shaft of the second pin shaft hole is greater than the maximum synchronous radial displacement difference between the center of the pin shaft in the second pin shaft hole and the top face of the plunger piston body.
Description
Technical field
The utility model relates to a kind of hot rolling coiler reel.
Background technology
Existing hot rolling coiler reel (hereinafter to be referred as the hot rolling reel) wherein two kinds be: a kind of is link-type, and this hot rolling reel only has the connecting rod that connects fanning strip and mandrel, and the pin shaft hole of connecting rod and fanning strip or mandrel link is circular port.Mandrel along the hot rolling reel axial move back and forth through will be converted to after the transmission of connecting rod fanning strip along the hot rolled coil barrel dliameter to move back and forth, thereby realize the harmomegathus of hot rolling reel.Another kind is a plunger type, the mandrel outer peripheral face of this hot rolling reel is provided with the inclined-plane of four symmetries, be provided with end face between mandrel and the fanning strip and support fanning strip bottom surface, the plunger body of bottom supporting on the mandrel inclined-plane, plunger body is the solid cylinder on inclined-plane by copper whole cast, bottom surface, and the fanning strip two ends radially are provided with the spring of pushing down with pressing plate.When mandrel with respect to plunger body during towards the motion of its top, inclined-plane, plunger body head on fanning strip along the hot rolled coil barrel dliameter to outwards moving, make the hot rolling drum diameter swell; When mandrel with respect to plunger body during towards the motion of bottom, its inclined-plane, plunger body radially inwardly moves along reel, fanning strip is in the radially inwardly motion of the effect lower edge of spring restoring force reel, makes hot rolling reel reduced.
All there is following technical problem in existing these two kinds of hot rolling reels: the moment that has just begun to batch steel plate when the hot rolling reel, be wrapped in the fanning strip surface steel plate can to fanning strip apply one tens of tons of moment radial impact power, make fanning strip along the hot rolled coil barrel dliameter to inwardly moving.This radial impact power is delivered to rapidly on the connecting rod or plunger body that is supported between fanning strip and the mandrel.Because connecting rod or plunger body all are rigidity, therefore the impulsive force that impinges upon on the connecting rod gently then makes the pin shaft hole of connecting rod and fanning strip link or the end face of plunger body suffer very big wearing and tearing, heavy then make connecting rod or plunger body produce serious deformation, shortened the service life of hot rolling reel.
The utility model content
The purpose of this utility model provides long hot rolling coiler reel in a kind of service life.
The technical solution of the utility model is: a kind of hot rolling coiler reel, comprise the connecting rod that connects fanning strip and mandrel, and end face is near bottom surface, the plunger body of bottom supporting on the mandrel inclined-plane of fanning strip; First pin shaft hole of described connecting rod and mandrel link is a circular port, and second pin shaft hole of connecting rod and fanning strip link is that major axis is vertical along connecting rod, and minor axis is along the horizontal mounting hole of connecting rod.The central authorities of described plunger body are provided with blind hole, be provided with end face in the blind hole and support the fanning strip bottom surface, the elastic mechanism of bottom supporting blind hole bottom surface only bears at plunger body under the situation of fanning strip deadweight, and it is 3 to 6 millimeters that the end face of described elastic mechanism is higher than plunger body end face distance; The difference of the length of the second pin shaft hole major axis and its minor axis length twice is poor greater than the maximum radial displacement synchronously of inserting bearing pin center in second pin shaft hole and plunger body end face.
Adopt this technical program, when the reel coil was rolled up, the elastic mechanism that is positioned at blind hole can absorb the moment radial impact power that most of fanning strip passes over, and greatly reduces the impulsive force that plunger body is subjected to, and has reduced the distortion and the wearing and tearing of plunger body.Connecting rod connects second pin shaft hole of fanning strip end owing to be mounting hole, has stopped cushion space also for instantaneous radially inwardly the moving of fanning strip, has significantly reduced the radial impact power that connecting rod is subjected to, and has reduced the distortion and the wearing and tearing of connecting rod.Owing to reduced the distortion and the wearing and tearing of two vitals on the hot rolling reel, thereby prolonged the service life of hot rolling reel.
Further technical scheme of the present utility model is: elastic mechanism comprises spring and the spring base that is pressed on the spring; Described spring base central authorities have ladder hole, and screw passes this ladder hole and spring, is fixed on the bottom of blind hole; The end face of described elastic mechanism is the end face of spring base, only bears at plunger body under the deadweight situation of fanning strip, and the end face of screw head is lower than the end face of plunger body.
Adopt this technical scheme, the spring that is limited in spring base and blind hole bottom by screw just had certain pretightning force before bearing the instant impact that fanning strip passes over, and therefore the ability of anti-fanning strip moment impact is more intense.And the mechanism of this spring base and spring assembly is fairly simple.
Further technical scheme of the present utility model is: elastic mechanism comprise spring, first spring base of blind hole bottom support spring and between spring and fanning strip second spring base of holddown spring, described first spring base and second spring base have the cylinder boss that stretches out to spring; The described first spring base central authorities have the ladder hole that passes for screw, the second spring base central authorities have the screwed hole that tightens up for screw, the end face of described elastic mechanism is the end face of second spring base, and the distance that the screw head end face is higher than the first spring base bottom surface is higher than the distance of plunger body end face greater than the end face of second spring base.
Adopt this technical scheme, the spring that is positioned at first spring base and second spring base just had certain pretightning force before bearing the instant impact that fanning strip passes over, and therefore the ability of anti-fanning strip moment impact is more intense.The cylindrical boss that stretches out to spring of first spring base and second spring base has reasonable guide effect to the radial motion of spring in addition.And the combination of this spring base and spring is relatively independent, can integral replacing, and also minimum to the plunger body intensity effect.
Further technical scheme of the present utility model is: the built-up welding of plunger body outer peripheral face has the layer of copper alloy.
Adopt this technical scheme, the copper alloy of built-up welding not only can prolong the service life of plunger body, and because the wearability of copper alloy is lower than steel, can significantly reduce with plunger body the mandrel that is formed from steel of friction and the wear extent of fanning strip take place, make and when reel keeps in repair, only need change plunger body, and need not change fanning strip and mandrel.Because the manufacturing cost of mandrel and fanning strip much larger than the cost of plunger body, therefore can have been saved a large amount of rehabilitation costs for the user.
Further technical scheme of the present utility model is: described plunger body is formed by tungsten/copper-alloy integrated casting.
Adopt this technical scheme, because plunger body is to be formed by tungsten/copper-alloy integrated casting, no longer need the operation of surfacing of Cu alloy, so its manufacturing is more simple, anti-wear performance is better, and is also better to the protection of fanning strip and mandrel.
Description of drawings
The profile of Fig. 1 link-type coiler mandrel
The profile of first kind of plunger body of Fig. 2
The profile of second kind of plunger body of Fig. 3
Fig. 4 connecting rod front view
Fig. 5 inserts the bearing pin center of second pin shaft hole and the plunger body end face synchronous radial displacement graph of a relation with respect to mandrel axial displacement
The specific embodiment
Hot rolling coiler reel as shown in Figure 1 comprises fanning strip 1, mandrel 2, connects the connecting rod 3 of fanning strip 1 and mandrel 2, and end face is near fanning strip 1 bottom surface, the plunger body 4 of bottom supporting on mandrel 2 inclined-planes.Also be provided with hollow shaft 9 between fanning strip 1 and the mandrel 2, plunger body 4 is positioned at the plunger hole of hollow shaft 9, and lining also is installed between plunger body 4 and plunger hole.When mandrel 2 with respect to plunger body 4 during towards the motion of the top on its inclined-plane, plunger body 4 head on fanning strip 1 along the hot rolled coil barrel dliameter to outwards moving, make drum diameter swell; When mandrel 2 with respect to plunger body 4 during towards the motion of the bottom on its inclined-plane, connecting rod 3 haul fanning strip 1 along the hot rolled coil barrel dliameter to inwardly moving, make hot rolling reel reduced.
First kind of plunger body profile as shown in Figure 2, the top of plunger body 4 has blind hole, is provided with spring 5 in the blind hole, and the diameter of spring 5 is slightly less than the diameter of blind hole.Pressing the spring base 6 of cylindrical shape on the spring 5, spring base 6 and blind hole 41 matched in clearance.Between blind hole bottom and the spring 5 and between spring 5 and the spring base 6 annular gasket is set respectively.The spring 5 of this spring base is preferably butterfly spring, because the contact area of butterfly spring and spring base 5 is bigger.The central authorities of spring base 6 have ladder hole 61, and screw 7 passes the blind hole bottom that this ladder hole is fixed on plunger body 4.Only bear at plunger body 4 under the situation of fanning strip 1 deadweight, the distance that the end face of spring base 6 is higher than plunger body 4 end faces is 3 to 6 millimeters, the nut portion end face of screw 7 is lower than the distance of plunger body 4 end faces, so both can make spring 5 before withstanding shocks, have enough pretightning forces, and can not absorb more impulsive force again because of the restriction of screw 7 positions.Just begun the moment of coil plate when the hot rolling reel, the spring 5 that fanning strip 1 suffered instant impact can be had certain pretightning force earlier sponges most, when the bottom surface of fanning strip finally touches the plunger body end face, be delivered to that the impulsive force on the end face has significantly reduced on the plunger body 1.
In the harmomegathus process of hot rolling reel, the bottom surface of plunger body 4 can with mandrel 2 inclined-plane generation sliding frictions.Overcome the restoring force of spring 5 when the instantaneous impact that passes over by fanning strip 1 after, also can produce friction when touching the end face of plunger body 4.The side of plunger body 4 can rub with the lining that is positioned at hollow shaft 9 plunger holes in the harmomegathus process of hot rolling reel simultaneously.Therefore the copper alloy layer of plunger body 4 outer peripheral face built-up welding can increase the wearability of plunger body 4, improves its service life.Therefore when plunger body 4 during by the steel whole cast, the outer peripheral face of plunger body 4, i.e. the equal surfacing of Cu alloy 8 in its end face, bottom surface and side can improve the wearability of plunger body 4 like this.Simultaneously because the wearability of copper alloy 8 will be lower than the wearability of steel, like this in the friction process of plunger body 4 and fanning strip of making by steel 1 and mandrel 2, the wearing and tearing of fanning strip 1 and mandrel 2 seldom, and the wearing and tearing of plunger body 4 are very big.When reel need be repaired, only need to change plunger body 4,2 of fanning strip 1 and mandrels can continue to use.Because the manufacturing cost of fanning strip 1 and mandrel 2 is all much larger than plunger body 4, thereby greatly reduce user's rehabilitation cost.
Certainly plunger body 4 also can be cast by tungsten/copper-alloy integrated.The operation that so just no longer needs the surfacing of Cu alloy, so its manufacturing is more simple, anti-wear performance is better, and is also better to the protection of fanning strip and mandrel.
What first kind of plunger body was different among second kind of plunger body as shown in Figure 3 and Fig. 2 is: be provided with in the blind hole that plunger body 4 central authorities are opened spring 5, first spring base 61 of blind hole bottom support spring 5 and between spring 5 and fanning strip 1 second spring base 62 of holddown spring 5.First spring base 61 and second spring base 62 have the cylinder boss that stretches out to spring 5, and the diameter of described cylinder boss is slightly less than the internal diameter of spring 5.The external diameter of spring 5 is slightly less than the diameter of plunger body 4 blind holes.Such first spring base 61, second spring base 62 and plunger body 4 blind hole inwalls all can play guide effect to spring 5, make spring 5 along axial bending be difficult for to take place in the radial motion process of reel.
The central authorities of first spring base 61 have ladder hole, and second spring base, 62 central authorities have screwed hole, and screw 7 passes the shoulder hole of first spring base 61, is fastened in the screwed hole of second spring base 62.Only be subjected at plunger body 4 under the situation of fanning strip 1 deadweight, the end face of second spring base 62 is higher than 3 to 6 millimeters of plunger body 4 end faces, and just the pretightning force of the spring 5 in all plunger bodies 4 is added up greater than the deadweight of fanning strip 1.Simultaneously the end face of the head of screw 7 distance that is higher than plunger body 4 blind hole bottom surfaces is higher than the distance of plunger body 4 end faces greater than second spring base, 62 end faces.
Because screw is to be fixed on the spring base, be not fixed on the plunger body, therefore the elastic mechanism in this plunger body is smaller to the plunger body intensity effect, and its independence is more intense, can be used as a module whole and changes.
Connecting rod front view as shown in Figure 4, connecting rod 3 is rounded with first pin shaft hole 31 of mandrel 2 links, and second pin shaft hole 32 that connecting rod 3 is connected with fanning strip 1 bearing pin is that major axis is 3 vertical along connecting rod, minor axis is along the horizontal waist shape of connecting rod 3.Mounting hole is rectangular opening of splicing in the middle of the semicircle orifice of two equal diameters, and the length of side on rectangular opening and semicircle orifice splicing limit equals the diameter of semicircle orifice.The long axis length of mounting hole is two distances between the semicircle orifice summit, and the length of mounting hole minor axis is the diameter of semicircle orifice.
Why second pin shaft hole 32 for first reason of mounting hole is: as shown in Figure 5, X-axis among the figure is represented mandrel 2 with respect to the axial displacement of its initial axial location along the hot rolling reel, the center that Y-axis is represented the end face of plunger body 4 or inserted bearing pins 10 in second pin shaft hole 32 with respect to separately radially initial position along the hot rolled coil barrel dliameter to displacement.Straight line 11 expression plunger bodies 4 end faces among the figure with respect to its radially initial position concern with respect to of the axial displacement of its axial initial position with mandrel 2 along the radial displacement of hot rolling reel along the hot rolling reel; Bearing pin 10 centers that connecting rods second pin shaft hole 32 is inserted in parabola 12 expression among the figure with respect to its radially initial position concern with respect to of the axial displacement of its axial initial position with mandrel 2 along the radial displacement of hot rolling reel along the hot rolling reel.As can be seen from Figure 5, from the end face of plunger body 4 or insert certain initial positions radially of center of bearing pins 10 in second pin shaft hole 32, at this time their initial position is not necessarily identical, but be zero with respect to the displacement of initial position separately, they begin to move radially along with moving axially of mandrel 2 then, until certain the time, they all equate with respect to the displacement of initial position separately.Be positioned at two some zones that parabola 12 and straight line 11 intersect between their motor area, obviously in this zone, the position of parabola 12 is higher than straight line 11.If second pin shaft hole 32 is circular, in the interval that this parabola 12 and straight line 11 intersect, the movement locus of the movement locus of connecting rod 3 and plunger body 4 is interferences, that is to say that they can not move on the time in this interval.And when second pin shaft hole 32 be mounting holes, the bearing pin 10 that inserts second pin shaft hole 32 has increased in the mounting hole space of rectangular opening motion between two semicircle orifices, has offset the space of interfering.Also because so, it is poor that the length of second pin shaft hole, 32 major axis and the difference of its minor axis length are greater than the maximum radial displacement synchronously of the center of inserting bearing pins 10 in second pin shaft hole 32 and plunger body 4 end faces, to guarantee the bearing pins 10 that insert in second pin shaft hole 32 enough spaces arranged.
Second reason is: if second pin shaft hole 32 is circular holes, then the instantaneous impact that is passed over by fanning strip 1 will be directly delivered on the connecting rod 3, when second pin shaft hole 32 is words of mounting hole, then the instantaneous radial impact power that is passed over by fanning strip 1 has in mounting hole rectangular opening between two semicircle orifices as cushion space, make finally to be delivered to impulsive force minimum on the connecting rod 3, thereby reduced the wearing and tearing and the distortion of connecting rod 3.
Claims (5)
1. hot rolling coiler reel is characterized in that:
Comprise the connecting rod (3) that connects fanning strip (1) and mandrel (2), and end face is near bottom surface, the plunger body (4) of bottom supporting on mandrel (2) inclined-plane of fanning strip (1);
Described connecting rod (3) is a circular port with first pin shaft hole (31) of mandrel (2) link, and connecting rod (3) is that major axis is vertical along connecting rod (3) with second pin shaft hole (32) of fanning strip (1) link, and minor axis is along the horizontal mounting hole of connecting rod (3);
The central authorities of described plunger body (4) are provided with blind hole (41), be provided with end face in the blind hole (41) and support fanning strip (1) bottom surface, the elastic mechanism of bottom supporting blind hole (41) bottom surface, only bear at plunger body (4) under the situation of fanning strip (1) deadweight, it is 3 to 6 millimeters that the end face of described elastic mechanism is higher than plunger body (4) end face distance;
The length of second pin shaft hole (32) major axis and the difference of its minor axis length are poor greater than the maximum radial displacement synchronously of inserting interior bearing pin (10) center of second pin shaft hole (32) and plunger body (4) end face.
2. hot rolling coiler reel according to claim 1, described elastic mechanism comprise spring (5) and are pressed in spring base (6) on the spring (5); Described spring base (6) central authorities have ladder hole, and screw (7) passes this ladder hole and spring (5), is fixed on the bottom of blind hole (41); The end face of described elastic mechanism is the end face of spring base (5), only bears at plunger body (4) under the deadweight situation of fanning strip (1), and the end face of screw (7) head is lower than the end face of plunger body (4).
3. hot rolling coiler reel according to claim 1, described elastic mechanism comprise spring (5), be positioned at first spring base (61) of blind hole bottom support spring (5) and be positioned at spring (5) and fanning strip (1) between second spring base (62) of holddown spring (5), described first spring base (61) and second spring base (62) have the cylinder boss that stretches out to spring (5);
Described first spring base (61) central authorities have the ladder hole that passes for screw (7), second spring base (62) central authorities have the screwed hole that tightens up for screw (7), the end face of described elastic mechanism is the end face of second spring base (62), and the distance that screw (7) head top surface is higher than plunger body (4) blind hole bottom surface is higher than the distance of plunger body (4) end face greater than the end face of second spring base (62).
4. according to the described hot rolling coiler reel of any claim in the claim 1 to 3, described plunger body (4) outer peripheral face built-up welding has layer of copper alloy (8).
5. according to the described hot rolling coiler reel of any claim in the claim 1 to 3, described plunger body (4) is formed by tungsten/copper-alloy integrated casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746741 CN203076365U (en) | 2012-12-31 | 2012-12-31 | Hot-rolling coiler mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746741 CN203076365U (en) | 2012-12-31 | 2012-12-31 | Hot-rolling coiler mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203076365U true CN203076365U (en) | 2013-07-24 |
Family
ID=48822248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220746741 Expired - Lifetime CN203076365U (en) | 2012-12-31 | 2012-12-31 | Hot-rolling coiler mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203076365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894446A (en) * | 2012-12-31 | 2014-07-02 | 衡阳中钢衡重设备有限公司 | Hot rolling coiler mandrel |
| CN113695400A (en) * | 2021-09-07 | 2021-11-26 | 湖南科美达重工有限公司 | Reel double-jaw device |
-
2012
- 2012-12-31 CN CN 201220746741 patent/CN203076365U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894446A (en) * | 2012-12-31 | 2014-07-02 | 衡阳中钢衡重设备有限公司 | Hot rolling coiler mandrel |
| CN103894446B (en) * | 2012-12-31 | 2016-04-27 | 衡阳中钢衡重设备有限公司 | Reeling tube of reeling |
| CN113695400A (en) * | 2021-09-07 | 2021-11-26 | 湖南科美达重工有限公司 | Reel double-jaw device |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
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| CX01 | Expiry of patent term |