CN205464232U - Dummy bar chain - Google Patents
Dummy bar chain Download PDFInfo
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- CN205464232U CN205464232U CN201620043709.4U CN201620043709U CN205464232U CN 205464232 U CN205464232 U CN 205464232U CN 201620043709 U CN201620043709 U CN 201620043709U CN 205464232 U CN205464232 U CN 205464232U
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- chain link
- chain
- dummy bar
- pin
- bearing pin
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Abstract
The utility model provides a dummy bar chain, the chain link adopts Y type structure, satisfy and send dummy bar chain on the protruding roller straightening and withdrawal machine, the requirement of throwing, also can satisfy the operation requirement that equal sectional plain -barreled roll drew the machine of rectifying, equipment is constituteed simplyr, adopt round pin axle and pin fixed between chain link and the chain link, the installation is more convenient with the dismantlement, and the axle sleeve is equipped with between round pin axle and the chain link, the axle sleeve adopts self -lubricating bearing, the wearing and tearing between chain link and the round pin axle can slow down, the trouble that the cascade oiling adds lubricating grease has been reduced again, dummy bar chain can satisfy can not reverse bend the requirement, can reach the forward bending again, the controllable effect of bend radius.
Description
Technical field
This utility model belongs to and relates to a kind of dummy bar chain, particularly relates to the dummy bar chain of a kind of novel billet caster for convex roller drawing and straightening machine.
Background technology
For improving strand product quality, strand need to be carried out dynamic soft-reduction by some billet caster.In recent years, external many steel mills have employed convex roller slighter compress method to pressure roller, and the mid portion of roller is designed to boss.Use the design of convex roller surface, selectivity pressure can be carried out at the position producing center segregation.Pressure can be implemented in resolidified region by this convex pressure roller, can effectively compensate for depressing in solidification shrinkage region subsequently to molten steel again, and the surface design of convex pressure roller makes drafts bigger.Therefore, under the conditions of identical drafts, the pressure roller of convex surface is lower than plane pressure roller energy consumption.By high-precision press control, compensating casting blank solidification end systole amount, the enrichment of suppression solute element, it is achieved roll forming optimization, pressure efficiency maximizes.The width of boss selects to want 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, and only middle part can contact with roller.If on withdrawal straightening machine, roll-in likely scratches roller on the both sides of dummy bar chain when horizontal segment.Especially at segmental arc dummy bar chain chain link through withdrawal straightening machine, common dummy bar chain likely blocks or scratches roller on withdrawal straightening machine, it is impossible to normal through withdrawal straightening machine.So for convex roller drawing and straightening machine, it is necessary to there is a kind of novel dummy bar chain could meet it and use requirement.
As illustrated in Figure 8 and 9 reference, pin shaft joint is passed through by three chain links in common dummy bar chain junction, then is fixed by pin, and as shown in accompanying drawing 10,11,12, connector is many, and installing/dismounting is cumbersome.Common dummy bar chain structure, the most 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, in dummy bar chain junction, chain link 3 12, chain link 4 13, chain link 5 14 is coupled by bearing pin 3 16, for fixed pin shaft and chain link, bearing pin has pin-and-hole, chain link and bearing pin is fixed by the pin-and-hole squeezed into, oilhole is had on bearing pin, lubricating cup is installed, adds grease by lubricating cup and slow down the abrasion between chain link and bearing pin.As shown in Figure 10, being by bearing pin 3 16 chain link at C-C section view position chain link 3 12, chain link 4 13, chain link 5 14, chain link 3 12, chain link 5 14 connect through the pin above bearing pin and are relatively fixed and can not rotate herein, and chain link 4 13 can relatively rotate.As shown in figure 11, in D-D section view position, bearing pin 4 17 is relatively fixed can not be rotated by pin 15 and chain link 3 12, chain link 5 14, and owing to bearing pin is semiaxis, and chain link 4 13 leaving certain gaps uncovered by the economic plan herein, so chain link 4 13 can relatively rotate relative to chain link 3 12, chain link 5 14 herein, owing to semi-axis structure limits, dummy bar chain can only inwards bend, and radius completely can be fairly small.Reversely owing to being limited can not bend by semiaxis.
But the dummy bar chain of this kind of structure is when dummy bar chain E-E section view position is by withdrawal straightening machine, as shown in accompanying drawing 12 and 15, now on withdrawal straightening machine, roller 10 can only contact with chain link 3 12, chain link 5 14 with withdrawal straightening machine lower roll 11, and middle chain link 4 13 can not contact with withdrawal straightening machine roller.For convex roller drawing and straightening machine, it will be apparent that dummy bar chain is the least with the contact area of roller, dummy bar chain easily squeezes into roller or roller scratches dummy bar chain in use, it is impossible to meet the use 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 human at periodic intervals refuels, and easily forms clc layer, produces the problems such as skidding when sending dummy ingot.
At common dummy bar chain chain link be by semiaxis control dummy bar chain can not back-flexing, can only forward bending, as shown in Figure 15, but forward bending radius is uncontrollable, actual the least have more than is needed bending radius.Transporting and hoisting when the most cumbersome.
Utility model content
The purpose of this utility model easily skids when being and overcome existing dummy bar chain installing/dismounting trouble, conveying dummy bar chain, cannot back-flexing, and the uncontrollable problem of forward bending radius.
To this end, this utility model provides a kind of dummy bar chain, including chain link one and chain link two, described chain link one is identical with chain link two structure, is y-type structure, and the head of one of them is connected by bearing pin one and bearing pin two with the afterbody of another one.
Described chain link one and chain link two are formed by horizontal segment and U-shaped gripping section, the gripping section of the wherein horizontal segment insertion another one of any one in chain link one and chain link two, two pin-and-holes are all offered on gripping section and horizontal segment, bearing pin one and bearing pin two are respectively inserted in pin-and-hole, all it is cased with axle sleeve on bearing pin one and bearing pin two, between axle sleeve and bearing pin one, bearing pin two, is provided with self-lubricating bearing.
Being equipped with two pins on the horizontal segment of described bearing pin one and bearing pin two, pin passes pin-and-hole and the central axis upright with pin-and-hole.
The inner surface of described gripping section and the outer surface of horizontal segment are equipped with chamfering.
On described horizontal segment, the diameter away from the pin-and-hole of one end, end is more than the diameter of the pin-and-hole of close U-shaped open at one end on gripping section.
The beneficial effects of the utility model: this dummy bar chain that this utility model provides, chain link uses y-type structure, meet and send dummy bar chain on convex roller drawing and straightening machine, the requirement of throwing, also the use requirement of the plain-barreled roll withdrawal straightening machine of same equal section can be met, equipment composition is simpler, bearing pin and pin is used to fix between chain link and chain link, it is more convenient to mount and dismount, and equipped with axle sleeve between bearing pin and chain link, axle sleeve uses self-lubricating bearing, the abrasion between chain link and bearing pin can be slowed down, decrease again cascade oiling and add the trouble of grease, dummy bar chain can meet can not the requirement of back-flexing, forward bending can be reached again, the effect that bending radius is controlled.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the top view of the dummy bar chain that this utility model provides.
Fig. 2 is the front view of the dummy bar chain that this utility model provides.
Fig. 3 is the A-A direction view in Fig. 2.
Fig. 4 is the B-B direction view in Fig. 2.
Fig. 5 is the schematic diagram that the dummy bar chain that this utility model provides contacts with withdrawal straightening machine.
Fig. 6 is the F-F direction view 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 view in Fig. 9.
Figure 11 is the D-D direction view in Fig. 9.
Figure 12 is the E-E direction view 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 view in Figure 13.
Figure 15 is the schematic diagram of the dummy bar chain of existing non-chamfering.
Description of reference numerals: 1, chain link one；2, chain link two；3, bearing pin one；4, bearing pin two；5, gripping section；6, horizontal segment；7, axle sleeve；8, pin；9, pin-and-hole；10, roller on withdrawal straightening machine；11, withdrawal straightening machine lower roll；
12, chain link three；13, chain link four；14, chain link five；15, pin；16, bearing pin three；17, bearing pin four；18, bearing pin five.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, present embodiments providing a kind of dummy bar chain, including chain link 1 and chain link 22, described chain link 1 is identical with chain link 22 structure, being y-type structure, the head of one of them is connected by bearing pin 1 and bearing pin two (4) with the afterbody of another one.
Dummy bar chain chain link is made Y type and can meet the requirement sending dummy ingot, throwing, meet the use requirement of the plain-barreled roll withdrawal straightening machine with equal section simultaneously, alleviate again the weight of equipment.This dummy bar chain that the present embodiment provides has versatility, both can be suitably used for the billet caster of convex roller drawing and straightening machine, can be used for plain-barreled roll withdrawal straightening machine, roller on protection withdrawal straightening machine, decreases the connector between dummy bar chain, installation, convenient disassembly between dummy bar chain chain link.
Embodiment 2:
As shown in Figure 2, Figure 3 and Figure 4, described chain link 1 and chain link 22 are formed by horizontal segment 6 and U-shaped gripping section 5, wherein any one horizontal segment 6 in chain link 1 and chain link 22 inserts the gripping section 5 of another one, two pin-and-holes 9 are all offered on gripping section 5 and horizontal segment 6, bearing pin 1 and bearing pin 24 are respectively inserted in pin-and-hole 9, all it is cased with axle sleeve 7 on bearing pin 1 and bearing pin 24, between axle sleeve 7 and bearing pin 1, bearing pin 24, is provided with self-lubricating bearing.
As shown in Figure 3, chain link 1 and chain link 22 is coupled by bearing pin 1 in A-A section view position, in order to reduce friction, equipped with axle sleeve 7 between bearing pin 1, bearing pin 24 and chain link 1 and chain link 22, axle sleeve 7 uses self-lubricating bearing, can slow down the abrasion between chain link and bearing pin, decrease again cascade oiling and add the trouble of grease, maintenance cost ratio is relatively low.
Embodiment 3:
Shown in as shown in Figure 1, Figure 3 and Figure 4, the horizontal segment 6 of described bearing pin 1 and bearing pin 24 being equipped with two pins 8, pin 8 is through pin-and-hole 9 and the central axis upright with pin-and-hole 9.
For fixed pin shaft 1 and bearing pin 24 and chain link 1 and chain link 22, horizontal segment 6 is squeezed into pin 8, chain link 1 and bearing pin 1 can relatively rotate herein, chain link 22 is fixed together by pin 8 and bearing pin 1, and such structure is more convenient chain link is installed and changed to equipment when.Dummy bar chain junction is designed to gripping section 5 band bearing pin 1 and the bearing pin 24 of Y type chain link, and the horizontal segment 6 of Y type chain link offers pin-and-hole 9, and during dummy bar chain horizontal positioned, bearing pin 24 is in the bottom of pin-and-hole 9, it is possible to prevent the back-flexing of dummy bar chain.When dummy bar chain is sent to withdrawal straightening machine segmental arc, dummy bar chain can forward bending, now bearing pin 24 will be near the top of pin-and-hole 9, bearing pin 24 size and pin-and-hole 9 magnitude difference, and determining 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 described gripping section 5 and the outer surface of horizontal segment 6 are equipped with chamfering.
In the F-F view of Fig. 6 it can be seen that, chain link 1 mid portion of dummy bar chain contacts well with the roller of withdrawal straightening machine, the most sufficiently large satisfied pressure dummy ingot requirement of contact area, and the afterbody of the chain link 22 of dummy bar chain and withdrawal straightening machine roller are not in contact with, it is to avoid 2 chain links one scratch the problem of roller on withdrawal straightening machine.What accompanying drawing 7 have expressed dummy bar chain afterbody and the roller on withdrawal straightening machine 10 that this utility model provides contacts situation, as can be seen from the figure, dummy bar chain is on withdrawal straightening machine between roller 10 and withdrawal straightening machine lower roll 11, when after chain link 22 afterbody chamfering, dummy bar chain is by withdrawal straightening machine, the middle part of chain link 1 contacts with roller on withdrawal straightening machine 10, without afterbody chamfering, as shown in figure 15, in having the region of a length of m, on withdrawal straightening machine, roller 10 is that the two sides of tail with link 22 contacts, it is easy to scratch roller 10 on withdrawal straightening machine, therefore in chain link afterbody chamfering b, the novel dummy bar chain being applicable to convex roller drawing and straightening machine is necessary.
Embodiment 5:
As in figure 2 it is shown, the diameter away from the pin-and-hole 9 of one end, end is more than the diameter of the pin-and-hole 9 of close U-shaped open at one end on gripping section 5 on described horizontal segment 6.
As shown in Figure 4, in B-B section view position, chain link 1 and chain link 22 are to be linked up by bearing pin 24, herein on horizontal segment 6 away from the diameter of pin-and-hole 9 of one end, end more than the diameter of pin-and-hole 9 near U-shaped open at one end on gripping section 5, chain link 1 and and bearing pin 24 link up and can not rotate, by self gravitation, bearing pin 24 againsts the bottom of the pin-and-hole of chain link 1, this kind of structure can prevent the back-flexing of dummy bar chain, but owing to there is difference away from diameter near the pin-and-hole 9 of U-shaped open at one end on the diameter of pin-and-hole 9 of one end, end and gripping section 5 on horizontal segment 6, therefore dummy bar chain can bend by forward within the specific limits, the radius of bending has relation with difference and zip length.
Accompanying drawing 5 and 6 have expressed the relation when dummy bar chain forward bends to least radius between bearing pin 24 and chain link 1.It is controlled that this kind of structure can meet dummy bar chain forward bending radius, can prevent again back-flexing simultaneously, and between 5 axles and 6 chain links two, only one of which pin is fixed, and installing/dismounting is the most more convenient.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.Parts that the present embodiment describes the most in detail and structure belong to the well-known components of the industry and common structure or conventional means, describe the most one by one.
Claims (5)
1. a dummy bar chain, including chain link one (1) and chain link two (2), it is characterized in that, described chain link one (1) is identical with chain link two (2) structure, being y-type structure, the head of one of them is connected by bearing pin one (3) and bearing pin two (4) with the afterbody of another one.
2. dummy bar chain as claimed in claim 1, it is characterized in that, described chain link one (1) and chain link two (2) are formed by horizontal segment (6) and U-shaped gripping section (5), the gripping section (5) of wherein horizontal segment (6) the insertion another one of any one in chain link one (1) and chain link two (2), two pin-and-holes (9) are all offered on gripping section (5) and horizontal segment (6), bearing pin one (3) and bearing pin two (4) are respectively inserted in pin-and-hole (9), axle sleeve (7) all it is cased with on bearing pin one (3) and bearing pin two (4), axle sleeve (7) and bearing pin one (3), it is provided with self-lubricating bearing between bearing pin two (4).
3. dummy bar chain as claimed in claim 1, it is characterized in that, being equipped with two pins (8) on the horizontal segment (6) of described bearing pin one (3) and bearing pin two (4), pin (8) passes pin-and-hole (9) and the central axis upright with pin-and-hole (9).
4. dummy bar chain as claimed in claim 2, it is characterised in that the inner surface of described gripping section (5) and the outer surface of horizontal segment (6) are equipped with chamfering.
5. dummy bar chain as claimed in claim 2, it is characterized in that, on described horizontal segment (6), the diameter away from the pin-and-hole (9) of one end, end is more than the diameter of the pin-and-hole (9) of close U-shaped open at one end on gripping section (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043709.4U CN205464232U (en) | 2016-01-18 | 2016-01-18 | Dummy bar chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043709.4U CN205464232U (en) | 2016-01-18 | 2016-01-18 | Dummy bar chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205464232U true CN205464232U (en) | 2016-08-17 |
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ID=56669837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620043709.4U Active CN205464232U (en) | 2016-01-18 | 2016-01-18 | Dummy bar chain |
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| Country | Link |
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| CN (1) | CN205464232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458197A (en) * | 2016-01-18 | 2016-04-06 | 中国重型机械研究院股份公司 | Dummy bar chain |
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2016
- 2016-01-18 CN CN201620043709.4U patent/CN205464232U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458197A (en) * | 2016-01-18 | 2016-04-06 | 中国重型机械研究院股份公司 | Dummy bar chain |
| CN105458197B (en) * | 2016-01-18 | 2018-04-03 | 中国重型机械研究院股份公司 | A kind of dummy bar chain |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |