CN202836219U - Hearth bottom roller - Google Patents
Hearth bottom roller Download PDFInfo
- Publication number
- CN202836219U CN202836219U CN 201220424489 CN201220424489U CN202836219U CN 202836219 U CN202836219 U CN 202836219U CN 201220424489 CN201220424489 CN 201220424489 CN 201220424489 U CN201220424489 U CN 201220424489U CN 202836219 U CN202836219 U CN 202836219U
- Authority
- CN
- China
- Prior art keywords
- roller shell
- pottery
- mandrel
- fixed cover
- carbon roller
- 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
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
The utility model discloses a hearth bottom roller which comprises a central spindle, a ceramic roller shell or a carbon roller shell which are covered on the central spindle, and further comprises a fixing sleeve which is covered on the central spindle and placed at both sides of the ceramic roller shell of the carbon roller shell. The central spindle, the ceramic roller shell or the carbon roller shell and the fixing sleeve are connected with each other as a whole through a driving pin. The hearth bottom roller has the advantages that the driving is stable, the break of the ceramic roller shell or the carbon roller shell can not occur easily and the service life is long.
Description
Technical field
The utility model relates to a kind of hearth roll.
Background technology
At present, Bottom Rollers of Continuous Annealing Furnace, because the connection defective between each parts of hearth roll, thereby cause the unsettled defective of transmission, and then pottery or the fragmentation of carbon roller shell are scrapped.Also because fire box temperature is very high, at high temperature, the coefficient of expansion of mandrel is different with pottery (or carbon) roller shell coefficient of expansion, also often causes the fracture of pottery or carbon roll end simultaneously.Cause frequent blowing out to change hearth roll, not only increased cost, and affected production efficiency.
The utility model content
The purpose of this utility model provides a kind of hearth roll.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of hearth roll comprises mandrel and the pottery or the carbon roller shell that are sleeved on the mandrel, also comprises the fixed cover that is sleeved on the mandrel, is positioned at pottery or carbon roller shell two ends, and described mandrel, pottery or carbon roller shell and fixed cover connect as one by trundle.
Above-mentioned, trundle passes the heat resisting steel axle, and pottery or carbon roller shell, fixed cover and heat resisting steel axle are connected as one effectively, has overcome the connection defective between each parts of hearth roll in the prior art, has guaranteed the stability of transmission.Mandrel and fixed cover material are preferably heat resisting steel.
For pottery or carbon roller shell, fixed cover and heat resisting steel axle can connect better, and can more effectively prevent that pottery or carbon roller shell termination are impaired simultaneously, preferably, described fixed cover comprises end plate and the enclosure that arranges along the end plate periphery, and described pottery or carbon roller shell termination are positioned at the enclosure of fixed cover.Be that the be fixed enclosure of cover of the two ends head of pottery or carbon roller shell has been trapped among in the enclosure.
For the damage of the hearth roll that prevents from causing because of expanded by heating, preferred, mandrel, pottery or carbon roller shell and fixed cover form matched in clearance in twos.
The size in above-mentioned gap is determined according to the expanded by heating coefficient of adjacent materials, guarantees can because expanded by heating is squeezed, not improve the service life of hearth roll between each parts of hearth roll.
In order to guarantee the connective stability between each parts, guarantee simultaneously the service life of pottery or carbon roller shell, preferred, be tight fit between trundle and mandrel or fixed cover, be matched in clearance between trundle and pottery or carbon roller shell.
In order further to guarantee the life-span of pottery or carbon roller shell, further preferred, the transmission pin-and-hole of an end is circular port on pottery or the carbon roller shell; The transmission pin-and-hole of the other end is mounting hole.
Above-mentioned waist-shaped hole is the complete waist-shaped hole of rule, and circular port be regular complete circular port, i.e. the equal non-notch of above-mentioned waist-shaped hole and circular port or other redundances have further been guaranteed the stability of hearth roll transmission.
In order further to guarantee the transmission stability of pottery or carbon roller shell, further preferred, the diameter of described circular port and trundle is poor to be 1.5-3mm.The diameter of described waist-shaped hole groove width and trundle is poor to be 1.5-3mm.
The utility model hearth roll, stable drive, pottery or carbon roller shell are difficult for breaking long service life.
Description of drawings
Fig. 1 is the utility model hearth roll structural representation.
Fig. 2 is Fig. 1 I place enlarged diagram.
Fig. 3 is Fig. 1 II place enlarged diagram.
The specific embodiment
In order to understand better the utility model, further illustrate content of the present utility model below in conjunction with embodiment, but content of the present utility model not only is confined to the following examples.
As shown in Figure 1 to Figure 3, hearth roll, comprise mandrel 1 and the pottery or the carbon roller shell 2 that are sleeved on the mandrel 1, be sleeved on the mandrel 1, be positioned at the fixed cover 3 at pottery or carbon roller shell 2 two ends, fixed cover 3 comprises end plate and the enclosure that arranges along the end plate periphery, and mandrel, pottery or carbon roller shell and fixed cover connect as one by trundle 4, and pottery or carbon roller shell termination are positioned at the enclosure of fixed cover, mandrel, pottery or carbon roller shell and fixed cover form matched in clearance in twos; Being tight fit between trundle and mandrel or fixed cover, is matched in clearance between trundle and pottery or carbon roller shell.The transmission pin-and-hole of an end is circular port on pottery or the carbon roller shell; The other end is mounting hole.The diameter of circular port and trundle is poor to be 2mm.The diameter of waist-shaped hole groove width and trundle is poor to be 2mm.
Claims (7)
1. hearth roll, comprise mandrel and the pottery or the carbon roller shell that are sleeved on the mandrel, it is characterized in that: also comprise the fixed cover that is sleeved on the mandrel, is positioned at pottery or carbon roller shell two ends, described mandrel, pottery or carbon roller shell and fixed cover connect as one by trundle.
2. hearth roll as claimed in claim 1 is characterized in that: described fixed cover comprises end plate and the enclosure that arranges along the end plate periphery, and described pottery or carbon roller shell termination are positioned at the enclosure of fixed cover.
3. hearth roll as claimed in claim 1, it is characterized in that: mandrel, pottery or carbon roller shell and fixed cover form matched in clearance in twos.
4. hearth roll as claimed in claim 2 or claim 3, it is characterized in that: being tight fit between trundle and mandrel or fixed cover, is matched in clearance between trundle and pottery or carbon roller shell.
5. hearth roll as claimed in claim 4, it is characterized in that: the transmission pin-and-hole of an end is circular port on pottery or the carbon roller shell; The transmission pin-and-hole of the other end is mounting hole.
6. hearth roll as claimed in claim 5 is characterized in that: the poor 1.5-3mm of being of the diameter of described circular port and trundle.
7. hearth roll as claimed in claim 5 is characterized in that: the poor 1.5-3mm of being of the diameter of described waist-shaped hole groove width and trundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424489 CN202836219U (en) | 2012-08-24 | 2012-08-24 | Hearth bottom roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424489 CN202836219U (en) | 2012-08-24 | 2012-08-24 | Hearth bottom roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202836219U true CN202836219U (en) | 2013-03-27 |
Family
ID=47947907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424489 Expired - Fee Related CN202836219U (en) | 2012-08-24 | 2012-08-24 | Hearth bottom roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202836219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675939A (en) * | 2019-01-22 | 2019-04-26 | 靖江市高新窑炉材料有限公司 | A kind of heat-resisting anti-deformation roller-way structure |
-
2012
- 2012-08-24 CN CN 201220424489 patent/CN202836219U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675939A (en) * | 2019-01-22 | 2019-04-26 | 靖江市高新窑炉材料有限公司 | A kind of heat-resisting anti-deformation roller-way structure |
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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: 20130327 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |