CN216297511U - Quadrangular pyramid type winding drum fixing cone shaft head device - Google Patents
Quadrangular pyramid type winding drum fixing cone shaft head device Download PDFInfo
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- CN216297511U CN216297511U CN202122400527.1U CN202122400527U CN216297511U CN 216297511 U CN216297511 U CN 216297511U CN 202122400527 U CN202122400527 U CN 202122400527U CN 216297511 U CN216297511 U CN 216297511U
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Abstract
The utility model discloses a quadrangular pyramid type winding drum fixed cone head device, wherein a guide plate is fixed with a sector block and is provided with a groove with an opening pointing to a shaft head, a supporting roller inner sleeve is sleeved on the shaft head in a sliding manner, one end of the supporting roller inner sleeve is provided with a wing part which can be clamped in the groove in a sliding manner, the inner circle of the supporting roller inner sleeve is provided with a through groove matched with a key, the key is arranged in a key groove of the shaft head, the upper part of the key is matched with the through groove in a sliding manner, a bearing inner ring is fixed on the excircle of one side of the supporting roller inner sleeve, which is far away from the wing part, a bearing outer ring is clamped in a bearing seat, the bearing seat can be arranged on a movable support in an axial sliding manner, and a compression ring is fixed with one end of the supporting roller inner sleeve or the bearing seat, and the inner side of the compression ring is abutted against the end surface of the bearing inner ring or the bearing outer ring. The utility model forms radial sliding connection through the supporting roller inner sleeve and the guide plate connected with the sector, and then the supporting roller inner sleeve is sleeved on the shaft head in an axial sliding manner, so that the rigidity and the strength of the movable support are not influenced by the axial movement of the pyramid shaft or the radial expansion and contraction of the sector, and the utility model has the characteristics of simple structure, safety, stability and simple and convenient operation.
Description
Technical Field
The utility model belongs to the technical field of metal rolling equipment, and particularly relates to a quadrangular pyramid type winding drum fixed cone shaft head device which is simple in structure, safe, stable and simple and convenient to operate.
Background
To maintain the stability and efficiency of the rolling process, the coil is wound more tightly and the rolled piece is given the correct orientation as it is fed into and out of the roll. In the rolling process in which a hot-rolled or cold-rolled steel material is wound in a roll shape, it is generally necessary to maintain a front tension and a rear tension, and therefore an uncoiler and/or a coiler with a collapsible roll are provided. The recoilers with tension reels are installed both before and after the single stand reversible cold rolling mill, while the recoilers are arranged after the finishing stands on hot strip tandem mills (hot tandem rolling trains), cold strip tandem mills and wire mills, so that they are used more frequently in the sheet rolling process.
After the rolling of the coiler is finished, the steel coil is unloaded from the winding drum, so the winding drum of the coiler must be made into a single cantilever type collapsible winding drum. The winding drum mainly comprises a pyramid shaft, a fan-shaped plate and other mechanisms, and the pyramid shaft is axially pulled by an oil cylinder to enable the fan-shaped plate to axially move so as to realize expansion and contraction. The coiling drum of the coiling machine establishes tension through the expansion and contraction of the coiling diameter, and the tension can reduce the pressure acting on the roller during rolling, reduce the warping phenomenon of the strip steel and be beneficial to improving the surface quality of the strip steel. However, the reel is used to wind the strip under great tension, so that the reel shaft is subjected to great loads (including the weight of the reel, the weight of the coil of strip, the moment caused by bending the strip and the tension, etc.). In order to ensure the rigidity and strength of the reel shaft and reduce the bending of the reel shaft, besides increasing the size of the reel shaft, a movable support capable of rotating is generally arranged at the free end of the reel. At present, for the situation that the coil weight is relatively heavy, although the recoiling machine is provided with a movable support (as shown in fig. 1), the spindle head structure at the free end of the winding drum is that a conical spindle head follows the spindle head, but because secondary expansion and contraction are sometimes required, the spindle head of the winding drum follows the spindle head in the winding drum to generate secondary displacement motion again, two positions exist before and after primary expansion and contraction and secondary expansion and contraction, the spindle head of the winding drum cannot be positioned twice by the existing movable support, so that the spindle head cannot be stably supported, the coil is too heavy, the head is heavy, the tail is light, and the service life of the winding drum and the stability and the precision of a rolled strip are influenced. In the prior art, the existing movable supporting structure is replaced by a roller type support and the like, but for a large-coil-weight coil, the roller type support is safer and more reliable without a device for directly holding the shaft head of a winding drum; of course, the outer surface of the shaft head device is changed into a flat shaft from a conical shaft, but relative displacement can be generated, the winding drum shaft head is not really tightly held, and the safety is also deficient.
Therefore, the design and development of a fixed shaft head device which is safe, reliable, simple and convenient to operate and suitable for a secondary expansion and contraction winding drum is urgent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quadrangular pyramid type reel fixed cone head device which is simple in structure, safe, stable and simple and convenient to operate.
The purpose of the utility model is realized as follows: including deflector, riding wheel endotheca, key, bearing frame, clamping ring, the outside and the fan-shaped piece fixed connection and the inboard of deflector are provided with the recess of the directional spindle nose of bottom opening, but riding wheel endotheca endwise slip cup joints on the spindle nose, the one end of riding wheel endotheca is provided with the alar part of radially slidable and joint in the recess, still be provided with on the interior circle of riding wheel endotheca with key complex logical groove, the lower part of key sets up in the keyway on the spindle nose and upper portion and logical groove sliding fit, the inner circle of bearing is fixed to be set up on the excircle that alar part one side was kept away from to the riding wheel endotheca, the outer lane joint of bearing is in the bearing frame, but bearing frame endwise slip's setting is on the activity is supported, the inner circle or the outer lane terminal surface of alar one end fixed connection and inboard butt bearing are kept away from to clamping ring and riding wheel endotheca or bearing frame.
The utility model has the beneficial effects that:
1. the supporting roller inner sleeve is in radial sliding connection with the guide plate connected to the sector block, then the supporting roller inner sleeve is axially slidably sleeved on the shaft head, and the inner circle of the supporting roller inner sleeve is connected with the shaft head through a key, so that when the pyramid shaft moves axially, the shaft head only slides axially relative to the supporting roller inner sleeve, and the axial position relation between the sector block and the supporting roller inner sleeve cannot be changed due to radial expansion and contraction of the sector block, therefore, the relative position between the supporting roller inner sleeve and the movable support cannot be influenced no matter secondary expansion and contraction or even multiple expansion and contraction, therefore, the stability of the support cannot be influenced due to the axial movement of the pyramid shaft or the radial expansion and contraction of the sector block, the problems of overweight of the coil and heavy head and light tail can be effectively avoided, and the service life and the rolling precision of the winding drum can be remarkably improved.
2. The supporting roller inner sleeve is axially and slidably sleeved on the shaft head, and the bearing seat are arranged outside the supporting roller inner sleeve and are arranged on the movable support, so that a structure for directly tightly holding the shaft head is formed, particularly, the movable support after secondary expansion and contraction can still stably hold the shaft head, the problems that the movable support cannot be held and cannot be tightly held after secondary expansion and contraction of the quadrangular pyramid type winding drum in the prior art are thoroughly solved, the rigidity and the strength of the winding drum shaft are ensured, the bending of the winding drum shaft can be effectively reduced, a good auxiliary effect is achieved for building a coiler, the pressure acting on a roller during rolling can be reduced, the warping phenomenon of strip steel is reduced, and the surface quality of the strip steel is improved.
3. The utility model also arranges a bearing and a bearing seat between the inner sleeve of the riding wheel and the movable support, which can reduce the friction resistance when the shaft head rotates, thereby increasing the flexibility of the rotation of the winding drum, and also can improve the wear resistance between the inner sleeve of the riding wheel and the movable support, thereby prolonging the service life of the shaft head. In addition, the utility model also arranges a wear-resistant shaft sleeve with simple structure between the inner sleeve of the riding wheel and the shaft head, so that the shaft head can not passively rotate in the movably supported inner sleeve when the expansion and contraction oil cylinder drives the pyramid shaft to rotate, thereby effectively reducing the wear of the inner sleeve of the riding wheel with complex structure, and further improving the service life and the precision of the whole device.
Therefore, the utility model has the characteristics of simple structure, safety, stability and simple and convenient operation.
Drawings
FIG. 1 is a schematic view of a prior art spindle nose configuration;
FIG. 2 is a schematic structural view of the present invention;
in the figure: 1-segment, 2-spindle nose, 3-deflector, 3A-groove, 3B-filler i, 3C-plug i, 4-screw i (mounting position), 5-riding wheel inner sleeve, 5A-wing, 5B-through groove, 5C-cylinder, 5D-filler iii, 5E-plug iii, 6-screw ii (mounting position), 7-key, 8-gland, 9-seal, 10-bearing, 11-bearing seat, 11A-collar, 11B-filler ii, 11C-plug ii, 12-shaft sleeve, 12A-oil reservoir, 12B-oil filler, 13-press ring.
Detailed Description
The present invention is further described with reference to the following examples and accompanying drawings, but the present invention is not limited thereto in any way, and any modification or replacement made in accordance with the teachings of the present invention falls within the scope of the present invention.
As shown in fig. 1 to 2, the utility model comprises a guide plate 3, a riding wheel inner sleeve 5, a key 7, a bearing 10, a bearing seat 11 and a press ring 13, wherein the outer side of the guide plate 3 is fixedly connected with a sector block 1, the inner side of the guide plate is provided with a groove 3A with a bottom opening pointing to a shaft head 2, the riding wheel inner sleeve 5 is axially slidably sleeved on the shaft head 2, one end of the riding wheel inner sleeve 5 is provided with a wing part 5A capable of radially sliding and being clamped in the groove 3A, the inner circle of the riding wheel inner sleeve 5 is also provided with a through groove 5B matched with the key 7, the lower part of the key 7 is arranged in a key groove on the shaft head 2, the upper part of the key 7 is slidably matched with the through groove 5B, the inner circle of the bearing 10 is fixedly arranged on the outer circle of one side of the riding wheel inner sleeve 5 far away from the wing part 5A, the outer circle of the bearing 10 is clamped in the bearing seat 11, and the bearing seat 11 is axially slidably arranged on a movable support, and the compression ring 13 is fixedly connected with one end of the idler inner sleeve 5 or the bearing seat 11 far away from the wing part 5A, and the inner side of the compression ring is abutted against the end face of the inner ring or the outer ring of the bearing 10.
The outside of deflector 3 is through the terminal surface fixed connection of screw I4 with sector 1, recess 3A is straight flute or the circular arc groove and the both sides opening of pivoting the axis of axial head 2.
The outer side of the guide plate 3 far away from the shaft head 2 is provided with at least two oil filling holes I3B communicated with the groove 3A at intervals, and the outer side of each oil filling hole I3B is provided with a screw plug I3C.
The both sides wall inboard of recess 3A is provided with boss I that is parallel to each other respectively in 2 sides near the axle head, the both ends face that alar part 5A kept away from the axis is provided with boss II that is parallel to each other respectively, the thickness of boss II is not more than the interval of two boss I of recess 3A, the inboard of boss II extends to recess 3A outside when alar part 5A joint is in recess 3A.
The supporting roller inner sleeve 5 is a T-shaped sleeve, an inner circle of the supporting roller inner sleeve 5 is axially slidably sleeved on the shaft head 2, the outer surface of a cylindrical portion 5C of the supporting roller inner sleeve 5 is a stepped shaft, a convex ring 11A is arranged in the middle of the inner circle of the bearing seat 11, and two sets of tapered roller bearings 10 which face to face or back to back are arranged between the inner circle of the bearing seat 11 and the outer surface of the cylindrical portion 5C.
The radius difference of the step shaft is smaller than the thickness of the end face of the inner ring abutted by the tapered roller bearing 10, and the radius difference of the convex ring 11A is smaller than the thickness of the end face of the outer ring abutted by the tapered roller bearing 10.
The bearing seat is characterized in that two end faces of the bearing seat 11 are respectively and fixedly connected with a gland 8 in a detachable mode, and a sealing element 9 matched with the supporting wheel inner sleeve 5 or the pressing ring 13 is arranged on the inner circle of the gland 8.
The bearing seat 11 is provided with an oil filling hole II 11B communicated with the inner circle of the convex ring 11A, and the outer side of the oil filling hole II 11B is provided with a screw plug II 11C.
The inner circle of the cylindrical part 5C close to the connecting side of the bearing 10 is provided with a shaft sleeve 12 in a close fit mode, the shaft sleeve 12 is sleeved on the shaft head 2 in an axially sliding mode, and the inner circle of the cylindrical part 5C, which is not the connecting section of the shaft sleeve 12, is in clearance fit with the shaft head 2.
The interior circle of axle sleeve 12 is provided with oil storage tank 12A and still is provided with on the excircle with oil storage tank 12A intercommunication oil filler point 12B, cylinder portion 5C is provided with the oil filler hole III 5D with oil filler hole 12B intercommunication, the terminal surface of oil filler hole III 5D intercommunication cylinder portion 5C or the inner chamber of bulge loop 11A, the oil filler hole III 5D outside of cylinder portion 5C terminal surface is provided with plug screw III 5E.
And the key 7 is fixedly arranged in a key groove on the shaft head 2 through a screw II 6.
The working principle and the working process of the utility model are as follows:
as shown in figure 2, the stroke of the expansion and contraction oil cylinder in the winding drum can be obtained through the expansion and contraction range of the winding diameter, the pyramid shaft in the winding drum is connected with the expansion and contraction oil cylinder through a coupler, and the pyramid shaft and the expansion and contraction oil cylinder move synchronously. When the device works, the expansion and contraction oil cylinder drives the pyramid shaft to move left and right through the coupler, at the moment, the shaft head 2 at the free end of the winding drum and the inner circle of the shaft sleeve 12 form sliding axial displacement, namely, no relative displacement exists between the supporting roller inner sleeve 5 and the bearing 10 outside the shaft sleeve 12 and between the bearing seat 11 and the movable support; meanwhile, the pyramid on the pyramid shaft pushes the slope surface on the sector plate 1 to enable the sector plate 1 to slide radially, and as the guide plate 3 is fixedly connected with the sector block 1 through the screw I4, and the wing part 5A of the supporting roller inner sleeve 5 slides radially and extends into the groove 3A of the guide plate 3, when the sector plate 1 drives the guide plate 3 to move radially, the wing part 5A can slide radially in the groove 3A to maintain the original position, and the axial and radial position relation between the supporting roller inner sleeve 5 and the movable support cannot be changed. In addition, when the winding drum is wound, the supporting roller inner sleeve 5 is connected with the shaft head 2 through the key 7, so that the pyramid only slides axially relative to the supporting roller inner sleeve 5 when moving left and right in the axial direction, and the supporting roller inner sleeve 5 can synchronously rotate along with the shaft head 2, and the relative position relation between the wing part 5A and the groove 3A cannot be changed. In addition, the bearing and the bearing seat are arranged between the inner sleeve 5 of the riding wheel and the movable support, so that when the expansion cylinder drives the pyramid shaft to rotate, the shaft head 2 cannot passively rotate in the inner sleeve of the movable support, and the shaft sleeve 12 is arranged between the inner sleeve 5 of the riding wheel and the shaft head 2, so that the service life of the inner circle of the inner sleeve 5 of the riding wheel can be prolonged, and the flexibility and the wear resistance of the rotation of the shaft head are improved by arranging the shaft sleeve, the bearing and the bearing seat. And finally, the two ends of the bearing 10 are respectively provided with the pressing ring 13 and the gland 8, so that the pre-tightening amount of the bearing 10 can be effectively adjusted, the bearing working chamber is prevented from moving, and the rolling quality of the surface of the strip steel can be effectively improved.
Claims (10)
1. A quadrangular pyramid type roller head fixing device for a roller is characterized by comprising a guide plate (3), a supporting roller inner sleeve (5), a key (7), a bearing (10), a bearing seat (11) and a pressing ring (13), wherein the outer side of the guide plate (3) is fixedly connected with a fan-shaped block (1), the inner side of the guide plate is provided with a groove (3A) with a bottom opening pointing to a roller head (2), the supporting roller inner sleeve (5) is sleeved on the roller head (2) in an axially sliding manner, one end of the supporting roller inner sleeve (5) is provided with a wing part (5A) which can slide radially and is clamped in the groove (3A), the inner circle of the supporting roller inner sleeve (5) is further provided with a through groove (5B) matched with the key (7), the lower part of the key (7) is arranged in a key groove on the roller head (2), the upper part of the key is in sliding fit with the through groove (5B), the inner ring of the bearing (10) is fixedly arranged on the outer circle of one side, far away from the supporting roller inner sleeve (5A), the outer ring joint of bearing (10) is in bearing frame (11), but bearing frame (11) axial sliding's setting is supported in the activity, clamping ring (13) and riding wheel endotheca (5) or bearing frame (11) keep away from the one end fixed connection of alar part (5A) and inboard inner circle or the outer ring terminal surface of butt bearing (10).
2. The quadrangular pyramid type reel fixing cone head device as claimed in claim 1, wherein the outer side of the guide plate (3) is fixedly connected with the end surface of the sector block (1) through a screw I (4), the groove (3A) is a straight groove or an arc groove rotating around the axis of the shaft head (2), and two sides of the groove are open.
3. The quadrangular pyramid type reel fixed cone head device according to claim 1, wherein the outer side of the guide plate (3) far away from the shaft head (2) is provided with at least two oil filling holes I (3B) communicated with the groove (3A) at intervals, and the outer side of the oil filling holes I (3B) is provided with screw plugs I (3C).
4. The quadrangular pyramid type reel fixed cone head device as claimed in claim 1, wherein bosses I parallel to each other are respectively arranged on the inner sides of the two side walls of the groove (3A) near the shaft head (2), bosses II parallel to each other are respectively arranged on the two end faces of the wing part (5A) far away from the axis, the thickness of the bosses II is not larger than the distance between the two bosses I of the groove (3A), and the inner sides of the bosses II extend to the outside of the groove (3A) when the wing part (5A) is clamped in the groove (3A).
5. The quadrangular pyramid type reel fixed cone shaft head device according to any one of claims 1 to 4, characterized in that the idler inner sleeve (5) is a T-shaped sleeve, the inner circle of the idler inner sleeve (5) is axially slidably sleeved on the shaft head (2), the outer surface of the cylindrical part (5C) of the idler inner sleeve (5) is a step shaft, the middle part of the inner circle of the bearing seat (11) is provided with a convex ring (11A), and two sets of conical roller bearings (10) which are face-to-face or back-to-back are arranged between the inner circle of the bearing seat (11) and the outer surface of the cylindrical part (5C).
6. The quadrangular pyramid type mandrel head device for a roll fixing cone according to claim 5, wherein the radius difference of the stepped shaft is smaller than the thickness of the end surface of the inner ring against which the tapered roller bearing (10) abuts, and the radius difference of the convex ring (11A) is smaller than the thickness of the end surface of the outer ring against which the tapered roller bearing (10) abuts.
7. The quadrangular pyramid type reel fixed cone head device according to claim 5, characterized in that two end faces of the bearing seat (11) are respectively and fixedly connected with a gland (8) in a detachable manner, and a sealing element (9) matched with the supporting roller inner sleeve (5) or the pressing ring (13) is arranged on the inner circle of the gland (8).
8. The quadrangular pyramid type reel fixed cone head device according to claim 7, characterized in that the bearing seat (11) is provided with an oil filling hole II (11B) communicated with the inner circle of the convex ring (11A), and the outer side of the oil filling hole II (11B) is provided with a screw plug II (11C).
9. The quadrangular pyramid type reel fixed cone head device according to claim 5, characterized in that the inner circle of the cylindrical part (5C) near the connection side of the bearing (10) is provided with a shaft sleeve (12) in a close fit manner, the shaft sleeve (12) is sleeved on the shaft head (2) in an axially sliding manner, and the inner circle of the cylindrical part (5C) at the connection section of the shaft sleeve (12) is in clearance fit with the shaft head (2).
10. The quadrangular pyramid type mandrel head device for the winding drum fixing cone as claimed in claim 9, wherein an oil storage tank (12A) is arranged on the inner circle of the shaft sleeve (12), an oil filling hole (12B) communicated with the oil storage tank (12A) is further arranged on the outer circle of the shaft sleeve (12), the cylindrical portion (5C) is provided with an oil filling hole III (5D) communicated with the oil filling hole (12B), the oil filling hole III (5D) is communicated with the end surface of the cylindrical portion (5C) or the inner cavity of the convex ring (11A), and a plug screw III (5E) is arranged on the outer side of the oil filling hole III (5D) on the end surface of the cylindrical portion (5C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122400527.1U CN216297511U (en) | 2021-09-30 | 2021-09-30 | Quadrangular pyramid type winding drum fixing cone shaft head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122400527.1U CN216297511U (en) | 2021-09-30 | 2021-09-30 | Quadrangular pyramid type winding drum fixing cone shaft head device |
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| CN216297511U true CN216297511U (en) | 2022-04-15 |
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| CN202122400527.1U Active CN216297511U (en) | 2021-09-30 | 2021-09-30 | Quadrangular pyramid type winding drum fixing cone shaft head device |
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| CN (1) | CN216297511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996658A (en) * | 2021-09-30 | 2022-02-01 | 云南冶金昆明重工有限公司 | Quadrangular pyramid type winding drum fixing cone shaft head device |
-
2021
- 2021-09-30 CN CN202122400527.1U patent/CN216297511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996658A (en) * | 2021-09-30 | 2022-02-01 | 云南冶金昆明重工有限公司 | Quadrangular pyramid type winding drum fixing cone shaft head device |
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