CN201969730U - Screw-down adjusting device for short stress path rolling mill - Google Patents
Screw-down adjusting device for short stress path rolling mill Download PDFInfo
- Publication number
- CN201969730U CN201969730U CN2010206293959U CN201020629395U CN201969730U CN 201969730 U CN201969730 U CN 201969730U CN 2010206293959 U CN2010206293959 U CN 2010206293959U CN 201020629395 U CN201020629395 U CN 201020629395U CN 201969730 U CN201969730 U CN 201969730U
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- adjusting device
- pull bar
- pull rods
- metal
- rolling mill
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Abstract
The utility model discloses a novel screw-down adjusting device for a short stress path rolling mill. The device comprises a transmission system driven by a hydraulic motor, four pull rods at two ends of the rolling mill, a roller, an upper bearing pedestal, a lower bearing pedestal and a roller frame, wherein the pull rods are connected with a bevel gear in the transmission system; and the device is characterized in that: chromium coatings are coated on surfaces A and B of the pull rods between the roller frame and the upper bearing pedestal as well as the lower bearing pedestal. After the chromium coatings are coated on the surfaces of the pull rods, wear resistance and corrosion resistance of the surfaces of the pull rods are improved. Meanwhile, a polytetrafluoroethylene material is also selected to manufacture seal rings in hole cavities at the two ends of the bearing pedestals; contact surfaces between the seal rings and the pull rods are changed into inclined surfaces from the original straight surfaces; and telescopic protective sleeves are formed on the surfaces of the pull rods between the upper bearing pedestal as well as the lower bearing pedestal and an end cover on the roller frame. Through the device, mixture of scale, water and oil and the like are prevented from entering the screw-down adjusting device so as not to obstruct rotation of the pull rods, so that the screw-down adjusting device is effectively prevented from failing, and running reliability of the rolling mill is improved.
Description
Technical field
The utility model relates to the adjusting device of depressing of steel rolling industry line, short stress bar line milling train.
Background technology
Line, short stress bar line milling train depress adjusting device (claiming the roll gap adjusting device again), it mainly is made up of drive disk assembly, pull bar, roll, metal (upper seat, roll stands such as hydraulic motor, rigidity catcher, worm screw, worm gear, bevel gear shaft and bevel gears.Its operation principle is: hydraulic motor drives two cover worm screws, the Worm gear mechanism (adopt between two worm screws and be rigidly connected) that places the milling train top by taking over; The two ends of every cover worm gear core wheel have connected two bevel gear shafts along with worm gear rotates together with key, engagement by bevel gear shaft and bevel gear, rotate four pull bars at milling train two ends (operating side and driving end) (in two pull bars of every end by the bevel gear of being fixed in the pull bar top, the top of a pull bar is processed with the left hand thread bottom and is processed with right-handed thread, and the top of another root pull bar then is processed with the right-handed thread bottom and is processed with left hand thread).The pull bar that rotates makes the metal (upper seat together with the radial motion of roll along roll, thereby finishes the adjustment of roll gap by nut fixing in the vestibule of top and bottom rolls bearing block two ends.It is the structural alloy steel of 42CrMo that the pull bar of present production domesticization line, short stress bar line milling train extensively adopts material.In actual production, expose the pull bar between metal (upper seat and roll stand, be subjected to the erosion of iron scale, water, oil mixture, its surperficial easy-to-rust; When the metal (upper seat along pull bar when moving up and down, the facing directly very easily of sealing ring that is fixed on the sealing device in the vestibule of bearing block two ends worn and torn, do not have sealing function, iron scale, water, oil mixture can enter the inside of depressing adjusting device from here is obstructed the pull bar rotation, loses efficacy thereby cause depressing adjusting device.
The utility model content
Problem to be solved in the utility model provides a kind of novel adjusting device of depressing of short stress path rolling mill, and it can prevent effectively that the surface that exposes the pull bar between roll stand and metal (upper seat from suffering erosion, thus the inefficacy of avoiding depressing adjusting device.Simultaneously, be fixed on and still can play sealing function after vestibule interior sealing device in bearing block two ends weares and teares, further avoid depressing the inefficacy of adjusting device, improve the milling train reliability of operation.And, can also significantly alleviate operator's labour intensity.
The utility model short stress path rolling mill depress adjusting device, it comprises transmission system, four pull bars at milling train two ends, roll, metal (upper seat, the roll stand that hydraulic motor drives, pull bar links to each other with bevel gear in the transmission system, and A, the B surface of pull bar between roll stand and metal (upper seat all is coated with chromium coating.
The utility model adopts the electrodeposited chromium technology behind its surface coverage chromium coating by the pull bar surface that will be positioned at easy-to-rust exposed between roll stand and metal (upper seat, improve its wear-resistant, decay resistance, prevented that iron scale, water, oil mixture etc. from entering the inside of depressing adjusting device from here and making pull bar rotate the generation of the situation of being obstructed, lost efficacy thereby prevented to depress adjusting device effectively, improved the milling train reliability of operation.
Description of drawings
Fig. 1 is the schematic diagram that the utility model is depressed adjusting device;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the assembling schematic diagram of pull bar;
Fig. 4 is the enlarged diagram at C place among Fig. 3;
Fig. 5 is the enlarged diagram at D place among Fig. 3;
Fig. 6 is the part drawing of pull bar.
The specific embodiment
From Fig. 1, Fig. 2, Fig. 3, Fig. 6 as can be known, the utility model short stress path rolling mill depress adjusting device, it comprises transmission system 1, four pull bars 2 at milling train two ends, roll 3, metal (upper seat 4,8, the roll stand 6 that hydraulic motor drives, pull bar links to each other with bevel gear in the transmission system, and it is characterized in that: A, the B surface of pull bar 2 between roll stand 6 and metal (upper seat 4,8 all is coated with chromium coating.The thickness of chromium coating is 0.15-0.2mm.If the milling train of present use is transformed, should adopt following steps: the pull bar after milling train disintegrates at first will clean, and will carry out pickling, rust cleaning to working face to be plated, checks thereafter and measures, and according to abrasion condition, formulates rational build-up welding repair process.Then, electrodeposited chromium technology is adopted on the surface after will repairing again, and making thickness of coating is 0.15～0.2mm, carries out attrition process subsequently, makes it to return to initial process.
From Fig. 3, Fig. 4, Fig. 5 as can be known, as a kind of improved procedure of the present utility model, between the contact-making surface of metal (upper seat 4,8 and pull bar 2 sealing device is arranged, sealing device is formed by the sealing ring 9 that is close to pull bar 2 surfaces with the contacted O type of metal (upper seat circle 10, and sealing ring 9 is pressed on the outer ring surface of 0 type circle 10; Be the inclined-plane with 2 contacted on pull bar on the sealing ring 9, the angle of inclined-plane and pull bar 2 is α.Sealing ring 9 preferred polytetrafluoroethylsealed sealed rings.
From Fig. 1, Fig. 2, Fig. 3 as can be known, advance a kind of improved procedure as of the present utility model, pull bar 2 metal (upper seats 4,8 and the surface that is fixed between the end cap 7 on the roll stand 6 are provided with telescopic protective sleeve 5.The preferred acrylonitrile-butadiene rubber of the material of protective sleeve 5.When the height of telescopic protective sleeve will be considered top and bottom rolls bearing block move toward one another and the minimum and maximum position between frame is determined.
Advantage of the present utility model is: 1, adopt the electrodeposited chromium technology after its surface coverage has chromium coating by the pull bar working face that will be positioned at easy-to-rust exposed between roll stand and metal (upper seat, improve its wear-resisting, corrosion resisting property; 2, select the splendid polytetrafluoroethylmaterial material of stability as the sealing ring in the vestibule of bearing block two ends, and its contact-making surface with pull bar changed the inclined-plane into by originally facing directly, to improve the sealing effectiveness on bright and clean axial plane, the service life of prolongation sealing ring; 3, install the pull bar surface between the end cap on metal (upper seat and the roll stand additional telescopic protective sleeve, prevent that the iron scale of bulk is attached on the pull bar surface, reduce water, oil and iron scale mixture to the erosion of working face. In a word, the utility model has prevented that the inside that iron scale, water, oil mixture etc. enter pressing adjustment device from making pull bar rotate the generation of the situation of being obstructed, and has effectively prevented the pressing adjustment device inefficacy, has improved the milling train reliability of operation. Simultaneously, because pressing adjustment device is not easy to lose efficacy, does not need frequent replacing, thereby significantly alleviated operator's labour intensity.
Claims (6)
1. short stress path rolling mill depresses adjusting device, it comprises transmission system (1), four pull bars (2) at milling train two ends, roll (3), metal (upper seat (4,8), the roll stand (6) that hydraulic motor drives, pull bar links to each other with bevel gear in the transmission system, and it is characterized in that: A, B surface that pull bar (2) is positioned between roll stand (6) and the metal (upper seat (4,8) all are coated with chromium coating.
2. the adjusting device of depressing according to claim 1 is characterized in that: the thickness of chromium coating is 0.15-0.2mm.
3. the adjusting device of depressing according to claim 1, it is characterized in that: between the contact-making surface of metal (upper seat (4,8) and pull bar (2) sealing device is arranged, sealing device is formed by the sealing ring (9) that is close to pull bar (2) surface with the contacted O type of metal (upper seat circle (10), and sealing ring (9) is pressed on the outer ring surface of O type circle (10); Sealing ring (9) is gone up and contacted of pull bar (2) is the inclined-plane, and the angle of inclined-plane and pull bar (2) is α.
4. the adjusting device of depressing according to claim 3 is characterized in that: sealing ring (9) is polytetrafluoroethylsealed sealed ring.
5. the adjusting device of depressing according to claim 1 is characterized in that: pull bar (2) is positioned at metal (upper seat (4,8) and the surface that is fixed between the end cap (7) on the roll stand (6) is provided with telescopic protective sleeve (5).
6. the adjusting device of depressing according to claim 5 is characterized in that: the material of protective sleeve (5) is an acrylonitrile-butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206293959U CN201969730U (en) | 2010-11-24 | 2010-11-24 | Screw-down adjusting device for short stress path rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206293959U CN201969730U (en) | 2010-11-24 | 2010-11-24 | Screw-down adjusting device for short stress path rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201969730U true CN201969730U (en) | 2011-09-14 |
Family
ID=44574837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206293959U Expired - Fee Related CN201969730U (en) | 2010-11-24 | 2010-11-24 | Screw-down adjusting device for short stress path rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201969730U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000701A (en) * | 2010-11-24 | 2011-04-06 | 马鞍山钢铁股份有限公司 | Reduction adjustment device of short stress path rolling mill |
| DE102013224644A1 (en) | 2013-11-29 | 2015-06-03 | Sms Siemag Aktiengesellschaft | Device for adjusting a roll in a roll stand |
| CN104889156A (en) * | 2015-06-03 | 2015-09-09 | 中冶华天南京工程技术有限公司 | Bars reducing and sizing mill |
-
2010
- 2010-11-24 CN CN2010206293959U patent/CN201969730U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000701A (en) * | 2010-11-24 | 2011-04-06 | 马鞍山钢铁股份有限公司 | Reduction adjustment device of short stress path rolling mill |
| CN102000701B (en) * | 2010-11-24 | 2013-05-22 | 马鞍山钢铁股份有限公司 | Reduction adjustment device of short stress path rolling mill |
| DE102013224644A1 (en) | 2013-11-29 | 2015-06-03 | Sms Siemag Aktiengesellschaft | Device for adjusting a roll in a roll stand |
| WO2015078822A1 (en) | 2013-11-29 | 2015-06-04 | Sms Siemag Ag | Device for adjusting a roll in a roll stand |
| US10124380B2 (en) | 2013-11-29 | 2018-11-13 | Sms Group Gmbh | Device for adjusting a roll in a roll stand |
| CN104889156A (en) * | 2015-06-03 | 2015-09-09 | 中冶华天南京工程技术有限公司 | Bars reducing and sizing mill |
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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: 20110914 Termination date: 20151124 |