CN202297731U - Improved heating furnace cantilever roller - Google Patents
Improved heating furnace cantilever roller Download PDFInfo
- Publication number
- CN202297731U CN202297731U CN 201120348011 CN201120348011U CN202297731U CN 202297731 U CN202297731 U CN 202297731U CN 201120348011 CN201120348011 CN 201120348011 CN 201120348011 U CN201120348011 U CN 201120348011U CN 202297731 U CN202297731 U CN 202297731U
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- CN
- China
- Prior art keywords
- roller
- roller head
- shaft
- head
- hollow shaft
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- 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
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model relates to an improved heating furnace cantilever roller and belongs to the technical field of steel rolling equipment, aiming at providing an abrasive-resistant high-temperature-resistant long-use-period improved heating furnace cantilever roller in which a roller head does not drop and a roller is convenient to disassemble and assemble. The technical scheme is as follows: the improved heating furnace cantilever roller consists of the roller head and a hollow shaft; a cooling water pipe channel is arranged in the hollow shaft; the roller head body is provided with a shaft hole, the axis of the shaft hole is in coincidence with that of the hollow shaft, the hole diameter of the shaft hole is matched with the shaft end of the hollow shaft; the roller head is sleeved on the shaft end of the hollow shaft; and the roller head is in key connection with the hollow shaft. The cantilever roller assembly is created at home and abroad for the first time and has an obvious effect. The cantilever roller has the following advantages: the service life of the roller can be prolonged doubly in terms of structure and material; the matching strength of the roller head and the hollow shaft is improved, and phenomena such as roller head dropping and water leakage, and the like are not generated; a roller head cooling space is enlarged, and the matching precision and service life of the roller head are improved; and the maintenance amount of the cantilever roller is reduced, the replacement frequency and quantity of the roller are lowered, and time and manpower are saved.
Description
Technical field
The utility model relates to a kind of heater for rolling steel cantilevered roll, belongs to the steel rolling equipment technical field.
Background technology
The heater for rolling steel hanging arm roll is going out, going into of guiding steel billet in effect mainly, sends into the roughing milling train to steel billet.Process furnace cantilevered roll in the bar workshop of some enterprises is made up of a plurality of pan feeding cantilevered rolls and a plurality of discharging cantilevered roll, all by the variable-frequency motor individual drive of adjustable speed.Roller table speed can be adjusted with rolling mill speed in process of production.These cantilevered rolls are made up of motor, wheel casing, chock, tubular shaft, water-cooled tube, swivel joint, roller head, find that in use there is following shortcoming in this cantilevered roll:
1. the fixing side examination of cantilevered roll roller head is for being welded to connect, and roller the water coolant volume is little in front because temperature is up to 1100 ℃ in the stove, the frequent weld bond of the effect lower roll head that in operation process, expands with heat and contract with cold ftractures the roller head rupture;
2. roller head material is 45
#Steel, the quick oxidation under high temperature action, body of roll wear resistance reduces greatly, and often mill leaks, and leaks, and comes off up to the roller head;
3. roller head water leakage fault directly influences in the heating-furnace refractory materials work-ing life;
4. after the roller head came off, roller table speed did not reach, and has a strong impact on rhythm of production;
5. it is big to change a cantilevered roll working strength.
Therefore, how to improve work-ing life, minimizing spare parts consumption, the reduction rate of breakdown of process furnace cantilevered roll and reduce worker's labour intensity, become the important technology difficult problem that the bar workshop need solve for many years.
The utility model content
The utility model technical problem to be solved provides that a kind of roller head does not come off, wear-resistant, high temperature resistant, life cycle is long, the improved process furnace cantilevered roll of roller easy accessibility.
The technical scheme that solves the problems of the technologies described above is:
A kind of improved process furnace cantilevered roll, it is made up of roller head, tubular shaft, and the water-cooled tube passage is arranged in tubular shaft; Its improvements are; Have axis hole on the roller head body, the axis of axis hole and tubular shaft dead in line, the aperture of axis hole and the axle head of tubular shaft are complementary; The roller headgear is contained on the axle head of tubular shaft, and the roller head adopts key to be connected with tubular shaft.
The improved furnace cantilever rollers, the roller head shaft hole with hollow shaft with shaft end at 3 degrees cone over Ying cooperation.
Above-mentioned improved process furnace cantilevered roll, said roller head is welded with block with the inboard axle journal place that is connected of tubular shaft, and installs the anti-back bolt additional.
This improved process furnace cantilevered roll; Be welded to connect by original roller head and cylinder shape tubular shaft and change the upside-down mounting of key tapering shrink-fit into and be connected; And the roller head adopts high temperature resistant, anti abrasive ZG4Cr28Ni48W5 material, and therefore fine control roller head case accident of ability and roller head hardening crack leakage accident, and this cantilevered roll assembling genus initiative both at home and abroad designs; Effect is very obvious, mainly contains following advantage:
1, roller can significantly improve its work-ing life on structure and on the material;
2, roller head and tubular shaft cooperate intensity to improve, and phenomenons such as the roller head comes off, leaks no longer occur;
3, roller head cooling space strengthens, the quality of fit and the work-ing life of having improved the roller head;
4, can reduce the replacing number of times and the quantity of the maintenance and the reduction roller of process furnace cantilevered roll, can save and repair and spent time and the manpower of assembling roller.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Mark is following among the figure: roller head 1, tubular shaft 2, water-cooled tube passage 3, block 4, key 5.
Embodiment
The utility model is identical with existing cantilevered roll, is made up of roller head 1, tubular shaft 2 equally, and the water-cooled tube passage is arranged in tubular shaft 2, and its improvements are that the roller head 1 and the syndeton of tubular shaft 2 are improved, and have obtained good effect.
The figure shows the utility model body of the roller head 1 is formed with a shaft hole, the axis of the shaft hole coincides with the axis of the hollow shaft 2, the roller head 1 is fitted over the shaft end of the hollow shaft 2, the roller head 1, the shaft hole and the hollow shaft connection shaft end 2 to 3 degrees with tapered over Ying, the utility model over one embodiment Ying Ying fit over the amount of 0.08mm.
During installation, roller head 1 is packed into from the other end of tubular shaft 2, and upside-down mounting connects.
Show among the figure that the roller head is welded with block 4 with the inboard axle journal place that is connected of tubular shaft, and installs the anti-back bolt additional.Block 4 is a steel construction piece, is positioned at roller head 1 and tubular shaft 2 connecting portions, and effect is to prevent to withdraw from because of high temperature heat expansion roller head 1 in the process furnace.
Claims (3)
1. improved process furnace cantilevered roll; It is made up of roller head (1), tubular shaft (2), and water-cooled tube passage (3) is arranged in tubular shaft (2), it is characterized in that: have axis hole on roller head (1) body; The axis of axis hole and tubular shaft (2) dead in line; The axle head of the aperture of axis hole and tubular shaft (2) is complementary, and roller head (1) is sleeved on the axle head of tubular shaft (2), and roller head (1) adopts key (5) to be connected with tubular shaft (2).
(2) as claimed in claim 1, wherein the cantilever rollers improved furnace, characterized in that: said roller head (1) of the shaft hole and the hollow shaft (2) at the shaft surface with the conical surface of 3 degrees with over Ying.
3. improved process furnace cantilevered roll according to claim 2 is characterized in that: said roller head (1) is welded with block (4) with the inboard axle journal place that is connected of tubular shaft (2), and installs the anti-back bolt additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120348011 CN202297731U (en) | 2011-09-16 | 2011-09-16 | Improved heating furnace cantilever roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120348011 CN202297731U (en) | 2011-09-16 | 2011-09-16 | Improved heating furnace cantilever roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202297731U true CN202297731U (en) | 2012-07-04 |
Family
ID=46366666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120348011 Expired - Fee Related CN202297731U (en) | 2011-09-16 | 2011-09-16 | Improved heating furnace cantilever roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202297731U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889786A (en) * | 2012-11-07 | 2013-01-23 | 何学才 | Cantilever roller bed used inside stepping heating furnace |
| CN104909109A (en) * | 2015-06-03 | 2015-09-16 | 江苏南山冶金机械制造有限公司 | Turning roller for loading cantilever roller |
| CN114061305A (en) * | 2021-10-26 | 2022-02-18 | 宝武杰富意特殊钢有限公司 | Novel cantilever roller way in heating furnace and application method thereof |
-
2011
- 2011-09-16 CN CN 201120348011 patent/CN202297731U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889786A (en) * | 2012-11-07 | 2013-01-23 | 何学才 | Cantilever roller bed used inside stepping heating furnace |
| CN102889786B (en) * | 2012-11-07 | 2014-06-11 | 何学才 | Cantilever roller bed used inside stepping heating furnace |
| CN104909109A (en) * | 2015-06-03 | 2015-09-16 | 江苏南山冶金机械制造有限公司 | Turning roller for loading cantilever roller |
| CN114061305A (en) * | 2021-10-26 | 2022-02-18 | 宝武杰富意特殊钢有限公司 | Novel cantilever roller way in heating furnace and application method thereof |
| CN114061305B (en) * | 2021-10-26 | 2024-04-26 | 宝武杰富意特殊钢有限公司 | Novel cantilever roller way in heating furnace and application method thereof |
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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: 20120704 Termination date: 20140916 |
|
| EXPY | Termination of patent right or utility model |