CN201735753U - Withdrawal and straightening machine carrying roller with cooling rotary joints - Google Patents
Withdrawal and straightening machine carrying roller with cooling rotary joints Download PDFInfo
- Publication number
- CN201735753U CN201735753U CN2010201977938U CN201020197793U CN201735753U CN 201735753 U CN201735753 U CN 201735753U CN 2010201977938 U CN2010201977938 U CN 2010201977938U CN 201020197793 U CN201020197793 U CN 201020197793U CN 201735753 U CN201735753 U CN 201735753U
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- China
- Prior art keywords
- swivel joint
- roll body
- straightening machine
- rotary joints
- transfer roller
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- Expired - Fee Related
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Abstract
The utility model discloses a withdrawal and straightening machine carrying roller with cooling rotary joints, which comprises a roller body and the cooling rotary joints; the rotary joints are arranged on both ends of the roller body and are connected with the roller body through threads; and both ends of the roller body are in a threaded connection structure of being in opposite directions so that the roller body and the rotary joints are screwed increasingly tighter. Because the threaded connection methods of the rotary joints on both sides of the roller body are respectively left-handed and right-handed, the rotary joints on both sides of the roller body can be screwed increasingly tighter, so as to reduce the possibility that the overall rotary joints fall off.
Description
Technical field
The utility model relates to the cooling technology that is used for the metallurgy industry transfer roller, more particularly relates to a kind of straightening machine transfer roller that cools off swivel joint that has.
Background technology
In steelmaking process, electric furnace zone molten steel casting apparatus uses the swivel joint of cooling water usually on the strand conveying roller of secondary cooling chamber, especially on as shown in Figure 1 straightening machine, straightening machine strand conveying roller, middle strand conveying roller is first-class, swivel joint 2 all is equipped with in roller 1 both sides, uses for water inlet and water outlet.See also the structural representation that swivel joint shown in Figure 2 is connected with roller again, wherein 1 is roll body; 2 is swivel joint; 3 is the spacing between swivel joint and roll body bearing block.The structural representation of prior art swivel joint shown in Figure 3, mainly be divided into two parts, a part is a rotary body 23, rotary body 23 outer ends are connected and fixed by a water out adapter 21 and roll body 1, and make circular motion in company with roll body 1, the other end is fixed on overcoat 22 inside by bearing 25 and back-up ring, rotary body 23 inner water flowings coolings, and act on muzzle 30 by holddown spring 28 and guarantee sealing with inside race 27, do not allow water flow into bearing 25; Another part is an overcoat 22, and it is fixing that it and 23 of rotary bodies pass through two single-row radial ball bearings 25, and 27 sealings of inner lasso guarantee that water enters the inside less than overcoat 22.Be connected with the Inlet and outlet water flexible pipe with water supply connector 24 perpendicular to overcoat 22 directions in addition, and each all swivel joint 2 that flow to the same side couples together with flexible pipe by parallel way.But because swivel joint 2 is to be threaded with roll body 1 connected mode, and all be dextrorotation.When strand normal when drop-down, with a sideway swivel joint 2 of roll body 1 rightabout rotation can be to revolve tighter and tighter, and an other side is equidirectional, then grown can be slowly lax the time, comes off until integral body.Not only cause roll body 1 cooling failure after coming off, and the leakage in a large number of the circulation of sealing, can cause water treatment to jump pump when serious.And the hole is the 65Mn material with back-up ring 26 and holddown spring 28, owing to be subjected to the erosion of circulation and water-spray system for a long time, is easy to corrosion.After in a single day the hole corrosion takes place with back-up ring 26 or holddown spring 28 phenomenon of rupture will take place, cause coming off of swivel joint overcoat 22.Finally cause recirculated water to leak in a large number, the consequence of roll body 1 cooling failure.Moreover rotary body 23 and the bearing 25 that overcoat 22 is connected and fixed, being common ball bearing, it is lubricated to be to give fat by lubricating cup 29 with manual mode.But in actual use, because quantity is many, working condition is abominable, at all can't be to being applied to fat in fact, so will cause bearing 25 to damage rotary body 23 stuck phenomena in the course of time.And when stuck phenomenon took place, the cooling water flexible pipe was all twining between swivel joint 2 and roll body bearing block before this, and the roll body bearing block is blocked, cause roll body 1 not change, semifinished product is in roll body 1 surperficial hard grind, not only with roll body 1 surface breakdown subsequently, even more serious is that strand is scratched, and causes quality accident.Last because the center of water supply connector 24 to the height of water out adapter 21 is 150mm, make that spacing 3 is too small between swivel joint 2 and roll body bearing block, cause difficulty very when dismounting swivel joint 2, not only time-consuming but also require great effort, badly influenced overhaul efficiency, and often can't be fastening.
The utility model content
Normal when drop-down at the strand that exists in the prior art, a sideway swivel joint that rotates with the roll body rightabout can be to revolve tighter and tighter, the equidirectional swivel joint of an other side then can be with slowly lax, the problem that comes off until integral body, the purpose of this utility model provides a kind of straightening machine transfer roller that cools off swivel joint that has, and can avoid swivel joint integral body to come off.
To achieve these goals, the utility model adopts following technical scheme:
A kind of straightening machine transfer roller that cools off swivel joint that has, comprise roll body and cooling swivel joint, swivel joint is located at the two ends of roll body and is threaded with roll body, and the screw connection structure that oppositely makes roll body and swivel joint revolve tighter and tighter is each other adopted at the two ends of described roll body.
The bearing of described cooling swivel joint adopts self-lubricating bearing.
The water supply connector center of described cooling swivel joint to the height of water out adapter is 170-180mm.
1Cr18Ni9Ti heat resisting steel is adopted with the material of back-up ring in the hole of described cooling swivel joint.
The material of the holddown spring of described cooling swivel joint adopts the 1Cr18Ni9Ti stainless steel wire.。
Compared with prior art, adopt a kind of straightening machine transfer roller that cools off swivel joint that has of the utility model, comprise roll body and cooling swivel joint, swivel joint is located at the two ends of roll body and is threaded with roll body, and the screw connection structure that oppositely makes roll body and swivel joint revolve tighter and tighter is each other adopted at the two ends of described roll body.Because the form that is threaded of roll body both sides swivel joint adopts the left and right form of revolving respectively, so just can guarantee simultaneously that roll body both sides swivel joint can both be in the state that revolves tighter and tighter, thereby reduce the possibility that swivel joint integral body comes off.
Description of drawings
Fig. 1 is the distribution schematic diagram of straightening machine on secondary cooling chamber fan-shaped section in the prior art;
Fig. 2 is the structural representation that swivel joint is connected with roll body among Fig. 1;
Fig. 3 is the structural representation of swivel joint among Fig. 1;
Fig. 4 is the structural representation of swivel joint of the present utility model;
Fig. 5 is the structural representation of self-lubricating bearing among Fig. 4.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
A kind of straightening machine transfer roller that cools off swivel joint that has, comprise roll body and cooling swivel joint, swivel joint is located at the two ends of roll body and is threaded with roll body, the two ends of roll body adopt reverse each other roll body and the swivel joint of making to revolve tighter and tighter screw connection structure, promptly an end adopts the dextrorotation rotation structure, and the other end adopts and is rotated counterclockwise structure.The bearing that sees also cooling swivel joint 40 shown in Figure 4 adopts self-lubricating bearing 45, to solve the problem of swivel joint bearing lubrication.Under the prerequisite that does not influence its serviceability, design bearing is adopted self-lubricating bearing 45, self-lubricating bearing 45 mainly is a kind of goods of being made by bronze that stud with graphite particle material.This material greasy property is good, does not need to add any grease product, can keep the performance of self-lubricating.Also can adapt to the requirement of roll body low-speed running, the so neither lubricated and rotation of influence, can not cause again stuck, thereby solved because the swivel joint stuck phenomenon that insufficient lubrication causes.The water supply connector center of cooling swivel joint to the height of water out adapter is 170-180mm, because water out adapter 41 length increase 20-30mm.Be convenient to dismounting not disturbing under the prerequisite of parts on every side like this, improved overhaul efficiency.
Though added bactericide, anti-iron erosion corrosion inhibiter (Y3H016) and liquid medicine such as anti-copper erosion corrosion inhibiter (N8338), main dirty agent in the circulation, finally still kept away unavoidable swivel joint 40 endoporus and use back-up ring 46 or holddown spring 48 by progressively corrosion.More priorly in addition be, be subjected to the influence of shower water, aggravated the corrosion of hole with back-up ring 46 or holddown spring 48.Because water-spray system is an open circuit cycle industrial water, only add bactericide in the water system, so formed a large amount of high-temperature steams when it cools off strand with the steam fog shape, vapor (steam) temperature probably has about 400 °.High-temperature steam is stronger to the corrosivity of 65Mn material.Because it is because the hole is subjected to back-up ring rupturing after the erosion of high temperature dosing water quality for a long time to cause that the swivel joint overcoat comes off, and just can solve coming off of overcoat so solved the hole with back-up ring material problem.In order to solve high temperature resistant and corrosion-resistant problem simultaneously, the hole is selected heat-resisting steel material for use with back-up ring 46.This material behavior at high temperature have creep resistant, anti-disrumpent feelings, oxidation resistance, good hear resistance and corrosion resistance arranged, enough toughness, machinability and certain structure stability.And wherein material hot treatment such as 1Cr18Ni9Ti, 0Cr18Ni9Ti temperature is 850 °～930 °, and 1Cr18Ni9Ti is better than 0Cr18Ni9Ti corrosion resistance in addition, is 1Cr18Ni9Ti heat-resisting steel material (GB893.1-86) so the trade mark is selected in decision for use.This material behavior is to be difficult for getting rusty, and the intensity height, thereby greatly reduces the possibility that causes the swivel joint overcoat to come off after the fracture.In addition, the stuck one of the main reasons of swivel joint be because the holddown spring long period of soaking in water channel, easy-to-rust fracture, fracture back water just enters bearing from inside race, thereby makes bearing failure.The main effect of holddown spring is the wearing and tearing of compensation a rotating body snare, and anti-sealing enters the bearing passage.Because the holddown spring installation region is the passage of a water, so this zone has water to exist all the time, the erosion fracture of can getting rusty of the holddown spring of long-term 65Mn material under water, thus anticorrosion be first-selected condition.And wherein stainless steel wire mainly is applicable to anti-corrosion machine components, so holddown spring 48 is selected Austenitic for use, the trade mark is the material (GB/T4240-1993) of 1Cr18Ni9, and this material behavior is to be difficult for getting rusty, and has reduced the possibility that causes fracture because of corrosion.The final stuck probability that reduces swivel joint.Table 1 is the performance comparison table of holddown spring before and after improving.
Table 1
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. one kind has the straightening machine transfer roller that cools off swivel joint, comprises roll body and cooling swivel joint, and swivel joint is located at the two ends of roll body and is threaded with roll body, it is characterized in that,
The screw connection structure that oppositely makes roll body and swivel joint revolve tighter and tighter is each other adopted at the two ends of described roll body.
2. straightening machine transfer roller as claimed in claim 1 is characterized in that,
The bearing of described cooling swivel joint adopts self-lubricating bearing.
3. straightening machine transfer roller as claimed in claim 1 is characterized in that,
The water supply connector center of described cooling swivel joint to the height of water out adapter is 170-180mm.
4. straightening machine transfer roller as claimed in claim 1 is characterized in that,
1Cr18Ni9Ti heat resisting steel is adopted with the material of back-up ring in the hole of described cooling swivel joint.
5. straightening machine transfer roller as claimed in claim 1 is characterized in that,
The material of the holddown spring of described cooling swivel joint adopts the 1Cr18Ni9Ti stainless steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201977938U CN201735753U (en) | 2010-05-18 | 2010-05-18 | Withdrawal and straightening machine carrying roller with cooling rotary joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201977938U CN201735753U (en) | 2010-05-18 | 2010-05-18 | Withdrawal and straightening machine carrying roller with cooling rotary joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735753U true CN201735753U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201977938U Expired - Fee Related CN201735753U (en) | 2010-05-18 | 2010-05-18 | Withdrawal and straightening machine carrying roller with cooling rotary joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013510A (en) * | 2018-09-11 | 2018-12-18 | 上海水威环境技术股份有限公司 | A kind of automatically controlled rifle of micro- water jet |
-
2010
- 2010-05-18 CN CN2010201977938U patent/CN201735753U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013510A (en) * | 2018-09-11 | 2018-12-18 | 上海水威环境技术股份有限公司 | A kind of automatically controlled rifle of micro- water jet |
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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: 20110209 Termination date: 20160518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |