CN101602062B - Sleeved and laterally-pressed combined-type roll collar - Google Patents
Sleeved and laterally-pressed combined-type roll collar Download PDFInfo
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- CN101602062B CN101602062B CN200910304201XA CN200910304201A CN101602062B CN 101602062 B CN101602062 B CN 101602062B CN 200910304201X A CN200910304201X A CN 200910304201XA CN 200910304201 A CN200910304201 A CN 200910304201A CN 101602062 B CN101602062 B CN 101602062B
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Abstract
The invention relates to the technical field of wire and bar steel rolling dies, in particular to a sleeved and laterally-pressed combined-type roll collar which can reduce the cost of the roll collar and avoid the crack of the roll collar. The roll collar comprises an outer ring made of a hard tungsten carbide material or other ultrahard materials and an inner ring of which the height is equal to that of the outer ring. The roll collar is characterized in that one end of the inner hole of the outer ring is provided with a hole step, and one end of the inner ring corresponding to the hole step is provided with a shaft shoulder; the other end of the inner hole of the outer ring is provided with a screwed ring base and compression ring bases, and one end of the inner ring corresponding to the screwed ring base is provided with a thread end; a screwed ring is arranged at the thread end; the screwed ring is provided with a plurality of screw holes; and compression rings are arranged on the axial outside of the screwed ring and in the screwed ring base and the compression ring bases. The compression rings and the screwed ring are connected by set screws and the hole step of the shaft shoulder. The compression rings prop against the outer ring to press down two sides contacting the hole step of the shaft shoulder so as to prevent relative slip between the outer ring and the inner ring.
Description
Technical field
The present invention relates to a kind of wire rod, bar steel rolling technical field, especially relate to and a kind ofly can reduce the collars use cost, avoid the sleeved and laterally-pressed combined-type roll collar of the cracked accident of collars.
Background technology
Along with the raising of line, bar rolling mill equipment and the development of rolling technique, mill speed is more and more fast, the surface quality of rolling stock requires more and more high, tungsten carbide becomes collars and mainly uses material, collars is a large amount of critical components that consume during steel rolling is produced, and consume rare metal resources such as a large amount of tungsten, cobalt.
The pre-finishing mill group, mm finishing mill unit, reducing sizing mill group are the nucleus equipments of line, bar rolling mill, the collars assembling axial compressive force of these cantilever rolling mills is important technical parameters of collars assembling.Assembling pressure is too high, and collars easily causes and collapses roller under the acting in conjunction of the thermal expansion stress that alternate stress that interference erection stress, draught pressure cause and roll shaft temperature rise cause in the production; Assembling pressure is low excessively, because of not satisfying the roll torque transmission condition, causes that tapered sleeve falls to press.The collars of these units of high-speed line, bar rolling mill uses tungsten carbide material mostly at present, even in, the low speed milling train, its mm finishing mill unit collars also uses tungsten carbide material mostly, is to influence its result of use principal element except collars is cracked, and it also is restraining factors that tungsten carbide material costs an arm and a leg.
But little other material of the superior wearability of tungsten carbide material replaces, and the ratio of Hardmetal materials is great, and is also bigger with the weight of Hardmetal materials collars under the volume situation, and the collars assembling is installed, dismounting, and reconditioning, carrying labour intensity are also bigger.In order to bring into play its superior anti-wear performance, the use tungsten carbide material of trying one's best few will be avoided the cracked accident of collars simultaneously, people's developmental research composite ring.
Usually instructions for use is that the collars top layer will have good wearability and red hardness to collars, and the collars core will have higher intensity and good toughness.Therefore, have and adopt centrifugal complex technique to produce composite ring, be that collars is by roller core and outer the composition, and adopting collars roller core and skin all is that the spheroidal graphite cast-iron composite ring is commonplace, spheroidal graphite cast-iron is because of the needs spheroidising, cost is higher, and spheroidizing process is also unstable, and the collars working lining does not reach the performance requirement in service life.Invented carbide alloy and spheroidal graphite cast-iron composite manufacturing as Sweden Sandvik AB, but production process is extremely complicated.In the patented technology of China this type of technology is related to seldom, specialty to the combining form technical research of collars still less.
Belong to metal rolled field as the patent No. for the 00236610.X utility model, comprise roll shaft and collars, collars is made up of the roller sheet more than 3, that the shape of roller sheet has is cylindrical, taper shape and annulus polygon, the cylindrical transversal of the axial cross section of annulus polygon roller sheet be in straight line, broken line, oblique line, the curve any.And for example the patent No. is 03226253.1 1 kinds and adopts the axial clamping mode of hydraulic nut that collars is fixed on assembled roller equipment on the roll mandrel, all be the design of breaker roll at composite set, but not this is that body is as research object to its collars.
Summary of the invention
The problem that the objective of the invention is and cracked accident high for the collars manufacturing cost that solves milling train in the prior art, provide a kind of rational in infrastructure, adopt inner ring to add the outer ring structure form, it is low to have the collars cost of making than single hard tungsten carbide material or other superhard material, can effectively avoid the sleeved and laterally-pressed combined-type roll collar of the cracked accident of collars.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of sleeved and laterally-pressed combined-type roll collar, comprise the outer ring that a hard tungsten carbide material or other superhard material are made, the inner ring that height equates with the outer ring, it is characterized in that described outer ring endoporus one end establishes rank, a hole, the corresponding end in inner ring and rank, hole is provided with the shaft shoulder; The other end of outer ring endoporus is provided with screw thread ring seat, pressure ring seat, and the corresponding end of inner ring and screw thread ring seat is provided with the end of thread, and the end of thread is equipped with threaded collar, and threaded collar is provided with some places screw, in the axial outside of threaded collar and the pressure ring seat pressure ring is housed.By holding screw and spring washer pressure ring and threaded collar are coupled together, and pressure ring are pressed on the outer ring, and with pressure at both sides that rank, shaft shoulder hole contact under, play preventing that outer ring and inner ring from producing relative slip.
As preferably, described screw thread ring seat is enclosed the inboard of endoporus outside, and the pressure ring seat is right after the outside that the screw thread ring seat is arranged on the outer ring endoporus.The screw thread ring seat has offered the installing space of threaded collar, and threaded collar cooperates with the end of thread of inner ring in the assembling mode of fine thread, and bonding contact-making surface so between the two is bigger, and is stressed more even; During making, the length of the end of thread is bigger slightly than the degree of depth of screw thread ring seat, can guarantee that so just threaded collar is assembled to the end of thread bottom radially anchor ring of threaded collar energy collet threaded ring seat before; The pressure ring seat provides the installing space of pressure ring, and in order to keep the unification of outward appearance, whole collars assembling back both ends of the surface flush substantially.
As preferably, the external diameter of described threaded collar and screw thread ring seat internal diameter matched in clearance are provided with holding screw in the screw on the threaded collar.Threaded collar is after screwing in the inner ring end of thread, and the end face of threaded collar directly compresses the radially anchor ring on the screw thread ring seat, and processing cost is low, assembling is easy and the external diameter of threaded collar and screw thread ring seat internal diameter matched in clearance make more.
As preferably, the main cylinder dimensions that described inner ring cooperates with the outer ring all is made as matched in clearance, the shaft shoulder place external diameter of inner ring and place, the rank, hole of outer ring internal diameter matched in clearance, inner ring is established the diameter step shaft shoulder littler than end of thread diameter in the end that is provided with the end of thread.The accuracy class of matched in clearance also can be made as higher, and both are increased by mutual effective contact-making surface, and in general, the processing technology of these inner/outer holes is fairly simple; The step shaft shoulder provides pressure ring better intensity design space.
As preferably, described pressure ring be provided with equate with screw number on the threaded collar and with the match counterbore of screw of screw, the medial extremity of the relative outer ring of pressure ring rigging position is provided with the elasticity annular groove.The counterbore here can be the single counterbore that matches with screw separately, and gland can not adorned like this; Also can be to form the cannelure of the degree of depth in a week more than or equal to gland thickness on the pressure ring end face, process screw counter bore again on the basis of this groove, this cannelure makes gland assembling back outer surface and inside and outside circle both ends of the surface in same plane.
As preferably, the diameter at described elasticity annular groove place is greater than the external diameter of threaded collar, less than the internal diameter of screw thread ring seat.Allow pressure ring pressure ring the seated connection abundant and outer ring touch, under the effect of holding screw, form certain force of strain between elastic ring and the pressure ring, both are fully tightly linked together.
As preferably, the external diameter of described threaded collar is less than the internal diameter of screw thread ring seat; Be provided with holding screw and spring washer in screw on the threaded collar and the counterbore in the pressure ring.Threaded collar will be rotated when assembling, and being provided with certain surplus between the internal diameter of the external diameter of threaded collar and screw thread ring seat neither influences specification requirements such as product strength, has avoided fully again bringing obstacle because of mismachining tolerance to assembling; The assembling back is as an overall work unit, and spring washer can play sufficient retaining effect.
As preferably, described pressure ring is established a gland in being provided with the circumference annular groove of counterbore, and gland is bonding with glue and pressure ring.
As preferably, described inner ring is made by the structural alloy steel material with high tenacity.Easy fracture not during the work of the material of tenacity excellent.
As preferably, described holding screw passes counterbore on the pressure ring and is connected in the screw on the threaded collar, pressure ring and threaded collar are closely linked together, and pressure ring is pressed on the outer ring, along with holding screw screws, pressure ring produces thrust to the outer ring, the radially anchor ring of the shaft shoulder of inner ring one end also produces thrust with the radially anchor ring on the rank, hole of outer ring one end simultaneously, two parts pressure plays and prevents that the outer ring from producing relative slip with inner ring, along with the raising of quantity increase of configuration holding screw and screw intensity, thrust strengthens.
Therefore, the present invention is a kind of reasonable in design, and integrated cost is low, can avoid the sleeved and laterally-pressed combined-type roll collar of the cracked accident of collars.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the local structure for amplifying schematic diagram of the M of Fig. 1 of the present invention.
Fig. 3 is the plan structure schematic diagram of Fig. 1 of the present invention.
Fig. 4 is a kind of outer ring structure schematic diagram of the present invention.
Fig. 5 is a kind of inner ring structural representation of the present invention.
Fig. 6 is a kind of pressure ring structural representation of the present invention.
Among the figure: 1. outer ring, rank, 11. hole, 12. pressure ring seats, 2. inner ring, 21. shaft shoulders, 22. ends of thread, the 23. step shaft shoulders, 3. threaded collar, 4. pressure ring, 41. counterbores, 42. elasticity annular grooves, 5. holding screw, 6. spring washer, 7. gland.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, Fig. 2, Fig. 3, present embodiment comprises an outer ring 1 of being made by the hard tungsten carbide material, has an inner ring 2 height to equate with outer ring 1.
As Fig. 4, shown in Figure 5, one end of 1 endoporus is established rank, a hole 11 in the outer ring, and inner ring 2 is provided with the shaft shoulder 21, both matched in clearance with the corresponding end in rank, hole; The other end of outer ring 1 endoporus is established a screw thread ring seat 13, pressure ring seat 12, and inner ring 2 its corresponding ends are provided with the end of thread 22, and the diameter step shaft shoulder 23 littler than the end of thread 22 diameters established in the outer end, termination of the end of thread 22, and the end of thread 22 is adorned a threaded collar 3.
Threaded collar 3 is provided with 12 place's screws, adorn a pressure ring 4 in the outer end of threaded collar 3 and the pressure ring seat 12, pressure ring 4 is provided with 12 counterbores 41 that equate with screw number on the threaded collar 3 and use with the cartridge screw that screw is complementary, the big end of counterbore 41 processing one degree of depth earlier equals the cannelure of gland 7 thickness, and pressure ring 4 and threaded collar 3 adjacent medial extremitys are processed an elasticity annular groove 42.
During assembling, outer ring 1 and inner ring 2 are sleeved on together, threaded collar 3 is screwed on the inner ring 2, the two screws and puts in place, pressure ring 4 is contained in threaded collar 3 outsides, with spring washer 6 and interior hexagonal holding screw 5 pressure ring 4 and threaded collar 3 are linked together, pressure ring 4 is pressed on the outer ring 1, the interior hexagonal holding screw 5 that is connected with threaded collar 3 along with pressure ring 4 screws, the outer ring 1 that pressure ring 4 and hard wear-resistant material are made produces thrust, thrust plays the outer ring 1 and the inner ring 2 relative effects of skidding that prevents that hard wear-resistant material from making, and the outside of pressure ring 4 sticks with glue and connects a gland 7, and the collars assembling is finished.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any structure after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (5)
1. sleeved and laterally-pressed combined-type roll collar, comprise the outer ring (1) that a hard tungsten carbide material is made, and the inner ring (2) that highly equates with outer ring (1), it is characterized in that described outer ring (1) endoporus one end establishes rank, a hole (11), inner ring (2) is provided with the shaft shoulder (21) with the corresponding end in rank, hole; The other end of outer ring (1) endoporus is provided with screw thread ring seat (13) and pressure ring seat (12), inner ring (2) is provided with the end of thread (22) with the corresponding end of screw thread ring seat (13), the end of thread (22) is equipped with threaded collar (3), threaded collar (3) is provided with some places screw, in the axial outside and pressure ring (4) is housed in pressure ring seat (12) of threaded collar (3).
2. sleeved and laterally-pressed combined-type roll collar according to claim 1 is characterized in that the inboard of described screw thread ring seat (13) (1) endoporus in the outer ring, and pressure ring seat (12) is right after the outside that screw thread ring seat (13) is arranged on outer ring (1) endoporus.
3. sleeved and laterally-pressed combined-type roll collar according to claim 1 is characterized in that the external diameter and screw thread ring seat (13) the internal diameter matched in clearance of described threaded collar (3) being provided with holding screw (5) in the screw on the threaded collar (3).
4. sleeved and laterally-pressed combined-type roll collar according to claim 1, it is characterized in that described pressure ring (4) is provided with the counterbore (41) that equates with screw number on the threaded collar (3) and use with the cartridge screw that screw is complementary, pressure ring (4) is provided with elasticity annular groove (42) with respect to the medial extremity of outer ring (1) rigging position, the diameter that described elasticity annular groove (42) is located is greater than the external diameter of threaded collar (3), less than the internal diameter of screw thread ring seat (13).
5. sleeved and laterally-pressed combined-type roll collar according to claim 1, it is characterized in that holding screw (5) passes counterbore (41) on the pressure ring (4) and is connected in the screw on the threaded collar (3), pressure ring (4) and threaded collar (3) are closely linked together, and pressure ring (4) is pressed on the outer ring (1), along with holding screw (5) screws, pressure ring (4) produces thrust to outer ring (1), the radially anchor ring of the shaft shoulder (21) of inner ring (2) one ends also produces thrust with the radially anchor ring on the rank, hole (11) of outer ring (1) one end simultaneously, two parts pressure plays and prevents that outer ring (1) and inner ring (2) from producing the effect of relative slip, along with the raising of quantity increase of configuration holding screw (5) and screw intensity, thrust strengthens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910304201XA CN101602062B (en) | 2009-07-10 | 2009-07-10 | Sleeved and laterally-pressed combined-type roll collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910304201XA CN101602062B (en) | 2009-07-10 | 2009-07-10 | Sleeved and laterally-pressed combined-type roll collar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101602062A CN101602062A (en) | 2009-12-16 |
| CN101602062B true CN101602062B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910304201XA Active CN101602062B (en) | 2009-07-10 | 2009-07-10 | Sleeved and laterally-pressed combined-type roll collar |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340150B (en) * | 2019-07-31 | 2021-06-25 | 安徽川岳机械有限公司 | Composite roll collar |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201516440U (en) * | 2009-07-10 | 2010-06-30 | 东阳市朋诚科技有限公司 | Cased side-pressure type combined roll collar |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201516440U (en) * | 2009-07-10 | 2010-06-30 | 东阳市朋诚科技有限公司 | Cased side-pressure type combined roll collar |
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| CN101602062A (en) | 2009-12-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG PENGCHENG TECHNOLOGIES CO., LTD. Free format text: FORMER NAME: DONGYANG PENGCHENG TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 322104 Dongyang, Zhejiang City, Weishan City, the town of Huai Huai industrial function zone six Patentee after: Zhejiang Pengcheng Technologies Co., Ltd. Address before: 311401 No. 57 Nanjing Ning East Road, Zhejiang, Dongyang Patentee before: Dongyang Pengcheng Technology Co., Ltd. |