CN203091418U - Roughing mill roller axial fixing device and roughing mill - Google Patents
Roughing mill roller axial fixing device and roughing mill Download PDFInfo
- Publication number
- CN203091418U CN203091418U CN 201320082697 CN201320082697U CN203091418U CN 203091418 U CN203091418 U CN 203091418U CN 201320082697 CN201320082697 CN 201320082697 CN 201320082697 U CN201320082697 U CN 201320082697U CN 203091418 U CN203091418 U CN 203091418U
- Authority
- CN
- China
- Prior art keywords
- plate pin
- roughing mill
- ring
- screw thread
- fixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses a roughing mill roller axial fixing device and a roughing mill. The roughing mill roller axial fixing device comprises a threaded half ring and a round nut, wherein the threaded half ring is arranged in a concave groove of a roller, and the round nut is connected with the threaded half ring through a plate pin, the plate pin is fixed on the round nut through a fastening part, and the width of one end, used for being provided with the fastening part, of the plate pin is smaller than the width of the other end used for fixing the threaded half ring. Through the arrangement, the distance between the rotation gravity center of the plate pin and the axis of the roller can be reduced, the centrifugation throwing-out trend of the plate pin is reduced, the deformation of the plate pin is further reduced, and the service life of the plate pin is prolonged.
Description
Technical field
The utility model relates to the milling train technical field, and particularly a kind of roughing mill roll mandrel is to fixture.Also relate to a kind of roughing mill that comprises above-mentioned roughing mill roll mandrel to fixture.
Background technology
In the development of metallurgical industry, it is the main mode of steel moulding in the steel and iron industry all the time that dynamical steel rolling industry and technology make steel rolling.
Steel rolling is a kind of pressure processing process that changes steel ingot, steel billet shape at the roll shop building of rotation.Milling train generally is divided into roughing mill, pre-finishing mill and finishing mill by the process segment of wire rod.Roughing mill generally is used for finishing the section of blank and depresses, and this moment, the roll of roughing mill bore bigger pressure.When the axial location of roll is insecure, be easy to cause fracture of roller.
As shown in Figure 1 and Figure 2, the axial restraint device of roll comprises screw thread semi-ring 12, round nut 13, rectangular slab pin 14, straight pin and tight fixed bolt 11 in the prior art.Bolt semi-ring 12 is arranged in the groove of roll, by straight pin retaining thread semi-ring 12, by rectangular slab pin 14 positioning threads semi-rings 12 and round nut 13, by tight fixed bolt 11 rectangular slab pin 14 is fixed on round nut 13.But the rotation center of gravity of rectangular slab pin 14 and the axle center of roll are far away, make rectangular slab pin 14 centrifugal to throw away trend big, cause a side easy deformation of the close roll of rectangular slab pin 14.
Therefore, how solving the centrifugal big problem of trend that throws away of rectangular slab pin, is those skilled in the art's technical issues that need to address.
The utility model content
The purpose of this utility model provides a kind of roughing mill roll mandrel to fixture, can reduce the centrifugal trend that throws away of plate pin effectively.
For addressing the above problem, the utility model provides a kind of roughing mill roll mandrel to fixture, comprise the screw thread semi-ring that is arranged on roll, by the tightening parts, the round nut that is connected with described screw thread semi-ring, described plate pin is fixed on described round nut by the tightening parts, and being used to of described plate pin is provided with the width of an end of described tightening parts less than the width of an end that is used for fixing described screw thread semi-ring.
Preferably, described screw thread semi-ring is connected with roll with key by straight pin.
Preferably, described plate pin is the corrosion resistant plate pin.
Preferably, described plate pin is a convex shape plate pin.
Preferably, described tightening parts are interior hexagonal tight fixed bolt.
The utility model also provides a kind of roughing mill, comprise above-mentioned in each described roughing mill roll mandrel to fixture.
With respect to the above-mentioned background technology, roughing mill roll mandrel provided by the utility model comprises screw thread semi-ring and round nut to fixture.The screw thread semi-ring is arranged in the groove of roll, and round nut is connected with the screw thread semi-ring by the plate pin, and the plate pin is fixed on the round nut by the tightening parts.And the width of an end that is used for fixing tight fixed bolt that makes the plate pin is less than the width of an end that is used for fixing the screw thread semi-ring.
So be provided with, can reduce the rotation center of gravity of plate pin and the distance in the axle center of roll, reducing the centrifugal trend that throws away of plate pin, and then reduce the distortion of plate pin, the service life of raising plate pin.
Description of drawings
Fig. 1 is roughing mill roll mandrel that prior art the provided structural representation to fixture;
Fig. 2 is that the roughing mill roll mandrel is to the installation site of fixture schematic diagram;
Fig. 3 is the partial schematic diagram of A portion shown in Figure 2;
Fig. 4 is the structural representation of roughing mill roll mandrel provided by the utility model to fixture;
Fig. 5 is the structural representation of roughing mill roll mandrel provided by the utility model to the plate pin of fixture;
Fig. 6 is the side view of roughing mill roll mandrel provided by the utility model to the plate pin of fixture.
Among Fig. 1-Fig. 6:
Tight fixed bolt-11, screw thread semi-ring-12, round nut-13, rectangular slab pin-14, roll-1, tight fixed bolt-2, round nut-3, convex shape plate pin-4, screw thread semi-ring-5, straight pin-6, cotter way-7, keyway-8.
The specific embodiment
Core of the present utility model provides a kind of roughing mill roll mandrel to fixture, can reduce the centrifugal trend that throws away of plate pin effectively.
In order to make those skilled in the art person understand the utility model scheme better,, the technical scheme among the utility model embodiment is clearly and completely described below in conjunction with the accompanying drawing among the utility model embodiment.
Please refer to Fig. 2 to Fig. 6, roughing mill roll mandrel provided by the utility model comprises screw thread semi-ring 5, round nut 3, tightening parts and plate pin to fixture.Wherein, screw thread semi-ring 5 is arranged in the groove of roll 1, and round nut 3 is connected with screw thread semi-ring 5 by the plate pin, and the plate pin is fixed on the round nut 3 by the tightening parts.And make the plate pin be used to the width of an end of tightening parts is set less than the width of an end that is used for fixing screw thread semi-ring 5.
The thickness of plate pin is meant after the plate pin fixes round nut 3 and screw thread semi-ring 5, along the size of the axial direction of roll 1.The width of plate pin is meant after the plate pin fixes round nut 3 and screw thread semi-ring 5, along the size of the circumferential direction of round nut 3.
The cross section of plate pin is meant after the plate pin fixes round nut 3 and screw thread semi-ring 5, with the cross section of the axis normal of roll 1.
With respect to prior art, the utility model has the advantages that: can reduce the distance in the axle center of the rotation center of gravity of plate pin and roll 1, reducing the centrifugal trend that throws away of plate pin, and then reduce the distortion of close roll one side of plate pin, improve the service life of plate pin.
The tightening parts can be holding screw, also can be tight fixed bolt 2.
The material of plate pin can be stainless steel or other materials.Preferentially select stainless steel herein for use, the holding capacity of corrosion resistant plate pin is big, and price is low.
Screw thread semi-ring 5 can be connected with roll 1 with key by straight pin 6.To increase the lifting surface area of straight pin 6 and key, more firm during retaining thread semi-ring 5.
In a kind of specific embodiment, along the diameter of screw thread semi-ring 5 screw thread semi-ring 5 is divided into two semicircles, on a semicircle of screw thread semi-ring 5, cotter way 7 is set, keyway 8 is set on another semicircle.
Be convenient fastening or dismounting tight fixed bolt 2, hexagonal tight fixed bolt in tight fixed bolt 2 is made as.
In a kind of specific embodiment, the plate pin is set to the convex shape plate pin 4 that is shaped as " protruding " font of cross section.Convex shape plate pin 4 comprises narrower part and wider part in two sub-sections.Convex shape plate pin 4 is easy to process, and is time saving and energy saving.
Is two kinds of 8mm or 10mm with the thickness of convex shape plate pin 4 by former 4mm thickening.The narrower part of convex shape plate pin 4 and the height of wider portion are 15mm.The width of the narrower part of convex shape plate pin 4 is 20mm, and the width of wider portion is 32mm.The thickness thickening of convex shape plate pin 4 strengthens non-deformability.
The narrower part of convex shape plate pin 4 is provided with the screwed hole that diameter is φ 11.Convex shape plate pin 4 is fixed on the round nut 3 by the tight fixed bolt 2 that is arranged on screwed hole.And the center that makes screwed hole with respect to the distance on the top of convex shape plate pin 4 greater than its center with respect to the narrower part of convex shape plate pin 4 and the distance of wider portion intersecting lens.So be provided with, can make tight fixed bolt 2 press close to the axis of roll 1, reduce the centrifugal force of tight fixed bolt 2.
The outside diameter of screw thread semi-ring 5 is M310 * 4, and diameter of bore is φ 276mm.Be used to install convex shape plate pin 4, be positioned at the traditional intensification 6mm of depth ratio of the keyway 8 on the screw thread semi-ring 5, width is than traditional 12mm that widens.The cotter way 7 that is used for installing straight pin 6 on the semicircle of screw thread semi-ring 5 still keeps, and planform does not change; Another half-open flat key groove.Screw thread semi-ring 5 is installed in the groove of roll 1, fixes by straight pin 6 and flat key.Straight pin 6 adopts stainless steel to make.
Screw thread semi-ring 5 and round nut 3 are provided with six grooves that are used to place convex shape plate pin 4.During setting circle nut 3, can lean on the dual-side and the location, tight fixed bolt 2 three places of the narrower part of convex shape plate pin 4.The stressed fulcrum of triangle has advantages of higher stability, has improved the stability of round nut 3.
Roll mandrel is installed when fixture, is lifted axial seat, screw thread semi-ring 5 is fixed in the groove of roll 1 by straight pin and key with overhead traveling crane.Paired round nut 3 is screwed in and compresses conical bearing.After round nut 3 is threaded to correct position with two convex shape plate pins 4 respectively oblique cutting go among in six grooves of round nut 3 and screw thread semi-ring 5 correspondences any two.Behind the aligned position, interior hexagonal tight fixed bolt is tightened with allen wrench.When installing roll mandrel after fixture, the end cap of roughing mill is installed.After roll 1 rolled off the production line, roll mandrel was opposite with erection sequence to the disassembly sequence of fixture.
This kind roll mandrel is wear-resistant to fixture, can improve the stability of roll 1 greatly.And it is identical or opposite effectively to avoid roll mandrel to turn to the rotation direction of fixture and roll 1, and convex shape plate pin 4 is scurried out, and causes screw thread semi-ring 5 solid failures, and then causes bearing to be scurried out or transship the phenomenon of damaging.And alleviated worker's working strength.
The utility model also provides a kind of roughing mill, comprises that above-mentioned each described roughing mill roll mandrel is to fixture.The beneficial effect that the roughing mill roll mandrel has to fixture, roughing mill all has.Other devices of roughing mill are same as the prior art, and this paper repeats no more.
More than roughing mill roll mandrel provided by the utility model is described in detail to fixture.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
1. a roughing mill roll mandrel is to fixture, comprise the screw thread semi-ring (5) that is arranged on roll (1), the round nut (3) that is connected with described screw thread semi-ring (5) by the plate pin, described plate pin is fixed on described round nut (3) by the tightening parts, it is characterized in that being used to of described plate pin is provided with the width of an end of described tightening parts less than the width of an end that is used for fixing described screw thread semi-ring (5).
2. roughing mill roll mandrel according to claim 1 is characterized in that to fixture described screw thread semi-ring (5) is connected with roll (1) with key by straight pin (6).
3. roughing mill roll mandrel according to claim 2 is characterized in that to fixture described plate pin is the corrosion resistant plate pin.
4. roughing mill roll mandrel according to claim 3 is characterized in that to fixture described plate pin is a convex shape plate pin (4).
5. roughing mill roll mandrel according to claim 3 is characterized in that to fixture described tightening parts are interior hexagonal holding screw.
6. a roughing mill is characterized in that, comprises that each described roughing mill roll mandrel is to fixture among the claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320082697 CN203091418U (en) | 2013-02-22 | 2013-02-22 | Roughing mill roller axial fixing device and roughing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320082697 CN203091418U (en) | 2013-02-22 | 2013-02-22 | Roughing mill roller axial fixing device and roughing mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203091418U true CN203091418U (en) | 2013-07-31 |
Family
ID=48842862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320082697 Expired - Fee Related CN203091418U (en) | 2013-02-22 | 2013-02-22 | Roughing mill roller axial fixing device and roughing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203091418U (en) |
-
2013
- 2013-02-22 CN CN 201320082697 patent/CN203091418U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203091418U (en) | Roughing mill roller axial fixing device and roughing mill | |
| CN203114838U (en) | Hexagonal automobile nut | |
| CN204396756U (en) | Integral type core roller rolles over ring mould | |
| CN201791752U (en) | Section steel inlet single-roller rolling guide and protection device | |
| CN204194634U (en) | A kind of electric rolling round belting | |
| CN201361561Y (en) | Fixing device for rolling mortar wall of cone crusher | |
| CN104399789A (en) | Circle rolling device | |
| CN203695656U (en) | Improved straightener support roller | |
| CN209272975U (en) | A kind of fixed device of roll | |
| CN207935252U (en) | Male ends twisting imprints | |
| CN202895123U (en) | Tool for disassembling process choke plug of shaft | |
| CN202667250U (en) | Composite hard alloy roll | |
| CN206356970U (en) | A kind of roll harness component | |
| CN202851600U (en) | Bridge crane angle form bearing block bearing lock nut | |
| CN203778488U (en) | Fixing device suitable for installation of rollers of three-roller planetary rolling mill | |
| CN205036720U (en) | Four roller shaft structures | |
| CN208662144U (en) | A kind of double steel blank roller way | |
| CN204194504U (en) | A kind of volume round belting | |
| CN210686717U (en) | Three-dimensional skip lock shaft structure of battery foil annealing furnace | |
| CN202545586U (en) | High-occupancy conical roller bearing retainer for rolling mills | |
| CN213011523U (en) | Lifting appliance for disassembling pre-finishing roll box | |
| CN219784940U (en) | Roller body of high-pressure roller mill | |
| CN203886941U (en) | Bearing seat device conductive to avoiding abrasion of rolling mill stand | |
| CN213498920U (en) | Special drawing device for shaft sleeve of thin oil vibration exciter | |
| CN213826414U (en) | Flange plate for curling rolling mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |