CN105458197B - A kind of dummy bar chain - Google Patents
A kind of dummy bar chain Download PDFInfo
- Publication number
- CN105458197B CN105458197B CN201610030295.6A CN201610030295A CN105458197B CN 105458197 B CN105458197 B CN 105458197B CN 201610030295 A CN201610030295 A CN 201610030295A CN 105458197 B CN105458197 B CN 105458197B
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- China
- Prior art keywords
- pin
- chain link
- chain
- bearing pin
- dummy bar
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/08—Accessories for starting the casting procedure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention provides a kind of dummy bar chain, chain link uses y-type structure, meet to send dummy bar chain on convex roller drawing and straightening machine, the requirement of throwing, also the requirement of the plain-barreled roll withdrawal straightening machine of same equal section can be met, equipment composition is simpler, fixed between chain link and chain link using bearing pin and pin, installation and removal are more convenient, and axle sleeve is housed between bearing pin and chain link, axle sleeve uses self-lubricating bearing, the abrasion between chain link and bearing pin can be slowed down, reduce the trouble of cascade oiling addition lubricating grease again, dummy bar chain can meet the requirement for being unable to back-flexing, and can reaches positive bending, the controllable effect of bending radius.
Description
Technical field
The invention belongs to a kind of dummy bar chain, more particularly to a kind of new billet continuous casting for convex roller drawing and straightening machine
The dummy bar chain of machine.
Background technology
To improve strand product quality, some billet casters need to carry out dynamic soft-reduction to strand.In recent years, foreign countries are permitted
More steel mills employ convex roller slighter compress method to pressure roller, and the center section of roller is designed to boss.Set using convex roller surface
Meter, selective pressure can be carried out at the position for producing center segregation.This convex pressure roller can be implemented to depress to resolidified region,
And can carries out effectively compensating for depressing to molten steel in subsequent solidification shrinkage region, and the surface design of convex pressure roller makes pressure
Lower amount is bigger.Therefore, under the conditions of identical drafts, the pressure roller of convex surface is lower than plane pressure roller energy consumption.Pass through height
The press control of precision, casting blank solidification end systole amount is compensated, suppresses the enrichment of solute element, realize that roller shape optimizes, pressure
Efficiency maximizes.The width selection of boss is suitable, preferably to improve center porosity.
But after using convex roller, as shown in accompanying drawing 13 and accompanying drawing 14, dummy bar chain and roller contact area reduce, only in
Between position can be contacted with roller.If in horizontal segment withdrawal straightening machine upper roller be pressed in dummy bar chain both sides be possible to scratch roller.
Especially when segmental arc dummy bar chain chain link passes through withdrawal straightening machine, common dummy bar chain is possible to block or scratches withdrawal straightening machine upper roller, no
Can be normal through withdrawal straightening machine.So for convex roller drawing and straightening machine, it is necessary to there is a kind of new dummy bar chain to meet that it is used and want
Ask.
As illustrated in Figure 8 and 9 reference, common dummy bar chain junction then passes through pin by three chain links by pin shaft joint
Fixed, as shown in accompanying drawing 10,11,12, connector is more, and installing/dismounting is cumbersome.Common dummy ingot chain structure, that is, it is existing
Dummy bar chain is mainly made up of chain link 3 12, pin 15, chain link 4 13, chain link 5 14, bearing pin 3 16, bearing pin 4 17, bearing pin 5 18,
Dummy bar chain junction, chain link 3 12, chain link 4 13, chain link 5 14 are coupled by bearing pin 3 16, for fixed pin shaft and chain link,
Pin-and-hole is provided with bearing pin, chain link and bearing pin are fixed by the pin-and-hole squeezed into, oilhole is provided with bearing pin, lubricating cup is installed, passes through lubricating cup
Addition lubricating grease slows down the abrasion between chain link and bearing pin.As shown in Figure 10, C-C section views position chain link 3 12, chain link 4 13,
Chain link 5 14 is by the chain link of bearing pin 3 16, and the pin that chain link 3 12, chain link 5 14 are connected through above bearing pin herein is relative
It is fixed from rotating, and chain link 4 13 can relatively rotate.As shown in figure 11, pin 15 is passed through in D-D section views position, bearing pin 4 17
With chain link 3 12, chain link 5 14 is relatively fixed to rotate, and because bearing pin is semiaxis, and chain link 4 13 leave herein it is scarce
Mouthful, so chain link 4 13 can relatively rotate relative to chain link 3 12, chain link 5 14 herein, and because semi-axis structure limits, dummy ingot
Chain can only lateral bend, and radius completely can be with fairly small inwardly.Reversely due to being limited and can not bent by semiaxis.
But the dummy bar chain of such a structure is when dummy bar chain E-E section views position passes through withdrawal straightening machine, as shown in accompanying drawing 12 and 15,
Now withdrawal straightening machine upper roller 10 and withdrawal straightening machine lower roll 11 can only contact with chain link 3 12, chain link 5 14, and middle chain link 4 13 can not
Contacted with withdrawal straightening machine roller.For convex roller drawing and straightening machine, it will be apparent that the contact area of dummy bar chain and roller is too small, when in use
Dummy bar chain easily squeezes into upper roller or roller scratches dummy bar chain, it is impossible to meets the requirement of convex roller drawing and straightening machine.
Common dummy bar chain bearing pin junction is by lubricating cup, by adding dry oil lubrication connection place, it is therefore desirable to artificial periodically to add
Oil, and clc layer is easily formed, the problems such as skidding is produced when sending dummy ingot.
It is to control dummy bar chain to be unable to back-flexing by semiaxis at common dummy bar chain chain link, positive can only bends, such as accompanying drawing
Shown in 15, but positive bending radius is uncontrollable, and actually have more than is needed so small bending radius.It is anti-when transporting and hoisting
It is cumbersome.
The content of the invention
The purpose of the present invention easily skids when being and overcoming existing dummy bar chain installing/dismounting trouble, conveying dummy bar chain, can not
Back-flexing, and the problem of positive bending radius is uncontrollable.
Therefore, the invention provides a kind of dummy bar chain, including chain link one and chain link two, chain link one and chain link two structure
It is identical, it is y-type structure, the head of one of them is connected with the afterbody of another by bearing pin one and bearing pin two.
The chain link one and chain link two form by horizontal segment and U-shaped gripping section, in chain link one and chain link two wherein
The horizontal segment of any one inserts the gripping section of another, and two pin-and-holes, bearing pin one are offered on gripping section and horizontal segment
It is respectively inserted in bearing pin two in pin-and-hole, axle sleeve is cased with bearing pin one and bearing pin two, is provided between axle sleeve and bearing pin one, bearing pin two
Self-lubricating bearing.
Be equipped with two pins on the horizontal segment of the bearing pin one and bearing pin two, pin through pin-and-hole and with the center of pin-and-hole
Axis is vertical.
The inner surface of the gripping section and the outer surface of horizontal segment are equipped with chamfering.
The diameter of the pin-and-hole away from end one end is more than on gripping section close to the pin-and-hole of U-shaped opening one end on the horizontal segment
Diameter.
Beneficial effects of the present invention：This dummy bar chain provided by the invention, chain link use y-type structure, meet convex roller straightening
The requirement of dummy bar chain, throwing is sent on machine, can also meet the requirement of the plain-barreled roll withdrawal straightening machine of same equal section, equipment forms simpler
It is single, fixed between chain link and chain link using bearing pin and pin, installation and removal are more convenient, and axle is housed between bearing pin and chain link
Set, axle sleeve use self-lubricating bearing, can slow down the abrasion between chain link and bearing pin, reduce cascade oiling addition lubricating grease again
Trouble, dummy bar chain can meet the requirement for being unable to back-flexing, and and can reaches the controllable effect of positive bending, bending radius.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the top view of dummy bar chain provided by the invention.
Fig. 2 is the front view of dummy bar chain provided by the invention.
Fig. 3 is the A-A direction views in Fig. 2.
Fig. 4 is the B-B direction view in Fig. 2.
Fig. 5 is the schematic diagram that dummy bar chain provided by the invention contacts with withdrawal straightening machine.
Fig. 6 is the F-F direction views in Fig. 5.
Fig. 7 is the partial enlarged drawing of the P in Fig. 5.
Fig. 8 is the top view of existing dummy bar chain.
Fig. 9 is the front view of existing dummy bar chain.
Figure 10 is the C-C direction views in Fig. 9.
Figure 11 is the D-D direction views in Fig. 9.
Figure 12 is the E-E direction views in Fig. 9.
Figure 13 is the schematic diagram that existing dummy bar chain contacts with withdrawal straightening machine.
Figure 14 is the G-G direction views in Figure 13.
Figure 15 is the schematic diagram of the dummy bar chain of existing non-chamfering.
Description of reference numerals：1st, chain link one；2nd, chain link two；3rd, bearing pin one；4th, bearing pin two；5th, gripping section；6th, horizontal segment；7、
Axle sleeve；8th, pin；9th, pin-and-hole；10th, withdrawal straightening machine upper roller；11st, withdrawal straightening machine lower roll；
12nd, chain link three；13rd, chain link four；14th, chain link five；15th, sell；16th, bearing pin three；17th, bearing pin four；18th, bearing pin five.
Embodiment
Embodiment 1：
As shown in figure 1, a kind of dummy bar chain is present embodiments provided, including chain link 1 and chain link 22, the He of chain link 1
The structure of chain link 22 is identical, is y-type structure, and the head of one of them passes through bearing pin 1 and bearing pin two with the afterbody of another
（4）Connection.
Dummy bar chain chain link is made into the requirement that Y types can meet to send dummy ingot, throwing, while meets that the plain-barreled roll with equal section is drawn
The requirement for the machine of rectifying, the weight of equipment is alleviated again.This dummy bar chain that the present embodiment provides has versatility, can be applicable
In the billet caster of convex roller drawing and straightening machine, plain-barreled roll withdrawal straightening machine is can be used for, protects withdrawal straightening machine upper roller, is reduced between dummy bar chain
Connector, installation, convenient disassembly between dummy bar chain chain link.
Embodiment 2：
As shown in Figure 2, Figure 3 and Figure 4, the chain link 1 and chain link 22 form by horizontal segment 6 and U-shaped gripping section 5,
The wherein horizontal segment 6 of any one in chain link 1 and chain link 22 inserts the gripping section 5 of another, gripping section 5 and level
Two pin-and-holes 9 are offered in section 6, bearing pin 1 and bearing pin 24 are respectively inserted in pin-and-hole 9, are covered on bearing pin 1 and bearing pin 24
There is axle sleeve 7, self-lubricating bearing is provided between axle sleeve 7 and bearing pin 1, bearing pin 24.
As shown in figure 3, chain link 1 and chain link 22 are coupled by bearing pin 1 in A-A section views position, in order to reduce friction,
Axle sleeve 7 is housed, axle sleeve 7 uses self-lubricating bearing, can slow down chain between bearing pin 1, bearing pin 24 and chain link 1 and chain link 22
Abrasion between section and bearing pin, reduce the trouble of cascade oiling addition lubricating grease again, maintenance cost is than relatively low.
Embodiment 3：
It is shown as shown in Figure 1, Figure 3 and Figure 4, two pins 8 are equipped with the horizontal segment 6 of the bearing pin 1 and bearing pin 24, are sold
Son 8 through pin-and-hole 9 and with the central axis upright of pin-and-hole 9.
For fixed pin shaft 1 and bearing pin 24 and chain link 1 and chain link 22, pin 8 is squeezed on horizontal segment 6, herein
Chain link 1 and bearing pin 1 can be relatively rotated, and chain link 22 is fixed together by pin 8 and bearing pin 1, and such structure exists
Equipment is installed and changed more convenient when chain link.Dummy bar chain junction is designed to the gripping section 5 of Y type chain links with bearing pin
One 3 and bearing pin 24, the horizontal segment 6 of Y type chain links offers pin-and-hole 9, and when dummy bar chain is horizontal positioned, bearing pin 24 is in pin-and-hole 9
Bottom, the back-flexing of dummy bar chain can be prevented.When dummy bar chain is sent to withdrawal straightening machine segmental arc, dummy bar chain can be positive curved
Song, now bearing pin 24 will be close to the top of pin-and-hole 9, and the size of bearing pin 24 and the magnitude difference of pin-and-hole 9 determine that dummy bar chain can
The least radius of bending.
Embodiment 4：
As shown in Fig. 5, Fig. 6 and Fig. 7, the inner surface of the gripping section 5 and the outer surface of horizontal segment 6 are equipped with chamfering.
It can be seen that, the center section of chain link 1 of dummy bar chain and the roller contact of withdrawal straightening machine are good in Fig. 6 F-F views
Good, contact area is also sufficiently large to meet pressure dummy ingot requirement, and the afterbody and withdrawal straightening machine roller of the chain link 22 of dummy bar chain do not connect
Touch, avoid the problem of 2 chain links one scratch withdrawal straightening machine upper roller.Accompanying drawing 7 expresses dummy bar chain afterbody provided by the invention and straightening
The contact situation of machine upper roller 10, it can be seen that dummy bar chain is between withdrawal straightening machine upper roller 10 and withdrawal straightening machine lower roll 11, chain
When saving dummy bar chain after 22 afterbody chamferings and passing through withdrawal straightening machine, the middle part of chain link 1 and withdrawal straightening machine upper roller 10 contact, if do not had
Afterbody chamfering, as shown in figure 15, having in the region that length is m, withdrawal straightening machine upper roller 10 is contacted with the two sides of tail for linking 22,
It is easy to scratch withdrawal straightening machine upper roller 10, therefore is for the new dummy bar chain suitable for convex roller drawing and straightening machine in chain link afterbody chamfering b
It is highly desirable.
Embodiment 5：
As shown in Fig. 2 the diameter of the pin-and-hole 9 away from end one end is more than on gripping section 5 close to U-shaped on the horizontal segment 6
The diameter of the pin-and-hole 9 of open at one end.
As shown in figure 4, in B-B section views position, chain link 1 and chain link 22 are linked up by bearing pin 24, herein water
The diameter of the pin-and-hole 9 away from end one end is more than the diameter of the pin-and-hole 9 of close U-shaped opening one end on gripping section 5, chain in flat section 6
Save 1 and link up and can not rotate with bearing pin 24, by self gravitation, bearing pin 24 close to the bottom of the pin-and-hole of chain link 1, this
Kind structure can prevent the back-flexing of dummy bar chain, but due to the diameter of the pin-and-hole 9 away from end one end and clamping on horizontal segment 6
There is difference in the diameter in section 5 close to the pin-and-hole 9 of U-shaped opening one end, therefore dummy bar chain positive within the specific limits can be bent,
The radius of bending has relation with difference and zip length.
Accompanying drawing 5 and 6 expresses the relation between bearing pin 24 and chain link 1 when dummy bar chain forward direction bends to least radius.
Such a structure can meet that dummy bar chain forward direction bending radius is controllable, while and can prevents back-flexing, and 5 axles and 6 chain links two
Between only a pin fix, installing/dismounting is all more convenient.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.The portion that the present embodiment does not describe in detail
The well-known components and common structure or conventional means of part and the structure category industry, are not described one by one here.
Claims (2)
1. a kind of dummy bar chain, including chain link one（1）With chain link two（2）, it is characterised in that the chain link one（1）With chain link two（2）
Structure is identical, is y-type structure, and the head of one of them passes through bearing pin one with the afterbody of another（3）With bearing pin two（4）Even
Connect；
The chain link one（1）With chain link two（2）By horizontal segment（6）With U-shaped gripping section（5）Composition, chain link one（1）And chain link
Two（2）In the wherein horizontal segment of any one（6）Insert the gripping section of another（5）, gripping section（5）And horizontal segment（6）
On offer two pin-and-holes（9）, bearing pin one（3）With bearing pin two（4）It is respectively inserted in pin-and-hole（9）It is interior, bearing pin one（3）With bearing pin two
（4）On be cased with axle sleeve（7）, axle sleeve（7）With bearing pin one（3）, bearing pin two（4）Between be provided with self-lubricating bearing；
The bearing pin one（3）With bearing pin two（4）Horizontal segment（6）On be equipped with two pins（8）, pin（8）Through pin-and-hole（9）
And and pin-and-hole（9）Central axis upright；
The horizontal segment（6）The upper pin-and-hole away from end one end（9）Diameter be more than gripping section（5）Upper close U-shaped opening one end
Pin-and-hole（9）Diameter, when dummy bar chain is horizontal positioned, bearing pin two（4）In pin-and-hole（9）Bottom, when dummy bar chain is sent to straightening
During machine segmental arc, dummy bar chain positive can be bent, bearing pin two（4）Close to pin-and-hole（9）Top.
2. dummy bar chain as claimed in claim 1, it is characterised in that the gripping section（5）Inner surface and horizontal segment（6）It is outer
Surface is equipped with chamfering, and dummy bar chain is in withdrawal straightening machine upper roller（10）With withdrawal straightening machine lower roll（11）Between, chain link two（2）Afterbody chamfering
When later dummy bar chain passes through withdrawal straightening machine, chain link one（1）Middle part and withdrawal straightening machine upper roller（10）Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610030295.6A CN105458197B (en) | 2016-01-18 | 2016-01-18 | A kind of dummy bar chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610030295.6A CN105458197B (en) | 2016-01-18 | 2016-01-18 | A kind of dummy bar chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458197A CN105458197A (en) | 2016-04-06 |
| CN105458197B true CN105458197B (en) | 2018-04-03 |
Family
ID=55596602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610030295.6A Active CN105458197B (en) | 2016-01-18 | 2016-01-18 | A kind of dummy bar chain |
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| Country | Link |
|---|---|
| CN (1) | CN105458197B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253257Y (en) * | 1996-01-10 | 1997-04-30 | 王国忱 | Self-locking elastic ingot-leading rod |
| CN202621861U (en) * | 2012-07-05 | 2012-12-26 | 中冶赛迪上海工程技术有限公司 | Flexible dummy bar |
| CN202762996U (en) * | 2012-09-07 | 2013-03-06 | 中冶赛迪工程技术股份有限公司 | Continuous-casting machine flexibility dummy bar |
| CN205464232U (en) * | 2016-01-18 | 2016-08-17 | 中国重型机械研究院股份公司 | Dummy bar chain |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150754A (en) * | 1984-12-25 | 1986-07-09 | Sumitomo Heavy Ind Ltd | Device for recovering dummy bar in vertical type continuous casting installation |
| DE102008016759B4 (en) * | 2008-04-02 | 2010-08-05 | Sms Siemag Aktiengesellschaft | Cold strand for a continuous casting plant and method for its use |
| KR20130087713A (en) * | 2012-01-30 | 2013-08-07 | 현대로템 주식회사 | Traction link for dummy bar car |
-
2016
- 2016-01-18 CN CN201610030295.6A patent/CN105458197B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253257Y (en) * | 1996-01-10 | 1997-04-30 | 王国忱 | Self-locking elastic ingot-leading rod |
| CN202621861U (en) * | 2012-07-05 | 2012-12-26 | 中冶赛迪上海工程技术有限公司 | Flexible dummy bar |
| CN202762996U (en) * | 2012-09-07 | 2013-03-06 | 中冶赛迪工程技术股份有限公司 | Continuous-casting machine flexibility dummy bar |
| CN205464232U (en) * | 2016-01-18 | 2016-08-17 | 中国重型机械研究院股份公司 | Dummy bar chain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105458197A (en) | 2016-04-06 |
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