CN206702179U - Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine - Google Patents
Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine Download PDFInfo
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- CN206702179U CN206702179U CN201720377343.9U CN201720377343U CN206702179U CN 206702179 U CN206702179 U CN 206702179U CN 201720377343 U CN201720377343 U CN 201720377343U CN 206702179 U CN206702179 U CN 206702179U
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- lead plug
- connecting rod
- flow control
- lead
- hole
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Abstract
The utility model provides case lead plug flow control device before a kind of roll-casting of magnesium alloy machine, and its structure includes linkage and interchangeable lead plug hole；Wherein linkage has adaptation function, is offset the temperature distortion of connecting rod by the compensatory deformation of spring in the slight oscillatory and linkage of lead plug head, to ensure the accurate flow control of the normal swing of connecting rod and lead plug.Taper by lead plug head and lead plug hole is poor, after solving connecting rod temperature distortion, stuck problem when lead plug head inserts；The linkage can adaptive thermal deformation, lead plug head float function and fillet anti-drag function auxiliary under, it is ensured that the flow control precision of lead plug, lead plug head axes and lead plug axially bored line non-overlapping problem when solving tight closure；For linkage on the premise of range is ensured, free gap is smaller, is advantageous to improve the sealing property of sealing dress, effectively prevents inert gas from revealing；Interchangeable lead plug hole, can be dismantled at any time, be easy to that it is cleared up or changed in time.
Description
Technical field
It the utility model is related to roll-casting of magnesium alloy field, and in particular to case lead plug flow control fills before a kind of roll-casting of magnesium alloy machine
Put.
Technical background
Case lead plug flow control device is the critical component on roll-casting of magnesium alloy production line before magnesium alloy, passes through its controllable preceding case
The uninterrupted that middle magnesium liquid is flowed into lip, it is most important to the casting quality and product lumber recovery of follow-up roll-casting of magnesium alloy plate.
Existing lead plug flow control device is made up of simple linkage more, and connecting rod drives lead plug under the driving of oil cylinder
Motion.It disclosure satisfy that flow control requirement in the non-closed environment of in general normal temperature, but due to the complicated working environment of roll-casting of magnesium alloy,
The less field requirement of arrangement space on preceding case, and the material property that magnesium alloy itself easily aoxidizes, cause existing lead plug
Flow control device has the disadvantage that.
First, because the fusing point of magnesium alloy is up to 650 DEG C, to ensure that magnesium alloy is molten state, preceding the temperature inside the box need to reach 650
More than, connecting rod and lead plug temperature distortion are serious at this temperature, cause lead plug normally to insert flow control hole, or lead plug and flow control
Can not normally closed between hole.
2nd, during existing flow control device adjustment, the reserved free gap of device is larger on preceding box body, and case is overall before causing
Sealing it is difficult, it is difficult to solve the leakage problem of inert gas.
3rd, solidified after often being reacted due to magnesium liquid in preceding case, the magnesium alloy after solidification is difficult to clean off, while can be introduced a large amount of
Oxide inclusion, the quality of follow-up roll-casting of magnesium alloy plate, and the fit precision requirement between lead plug and lead plug hole can be had a strong impact on
It is very high, therefore need that often flow control mouth is changed or cleared up, to ensure the normally closed of lead plug and lead plug hole.Flow control hole in existing structure
It is an entirety with preceding case, operation inconvenience during cleaning, and integral replacing cost is higher.
Utility model content
For the above situation, technical problem to be solved in the utility model is：Connect under high temperature before roll-casting of magnesium alloy in case
Bar by thermal stretching and the volumetric expansion of lead plug head, cause lead plug and flow control hole can not normally closed, the work of connecting rod in existing structure
Dynamic scope is larger, and case integral sealing is difficult before causing, it is difficult to solves the leakage problem of inert gas；In existing structure lead plug hole and
Preceding case is an entirety, operation inconvenience during cleaning, and integral replacing cost is higher；The flow control range of existing apparatus is smaller, it is difficult to
Realize completely disengaging for lead plug and lead plug hole.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of roll-casting of magnesium alloy machine is provided
Preceding case lead plug flow control device, its structure include linkage and interchangeable lead plug hole；Wherein linkage has adaptation function,
The temperature distortion of connecting rod is offset by the compensatory deformation of spring in the slight oscillatory and linkage of lead plug head, to ensure to connect
The normal swing of bar and the accurate flow control of lead plug.
Described linkage is by support frame, electric pushrod, driving shaft, connecting rod, lead plug head, upper sleeve cover, lower sleeve cover, bullet
Spring, guide finger, bearing pin, screw box and supporting pin composition；Wherein driving shaft and electric pushrod are respectively hinged at support frame both sides,
And both are hinged by connecting shaft；Driving axle housing by the axis hole on driving shaft and is fixed on connecting rod on connecting rod
On guide finger, the displacement in addition to connecting rod axis direction is limited；Spring is arranged in driving shaft upper and lower cavity, by connecting rod
Supporting pin and screw box fix, on connecting rod axis direction displacement carry out elastic restraint；Bolt fixes upper and lower upper shield
In the upper and lower side of driving shaft.In the lower end of connecting rod, lead plug head is connected on connecting rod by bearing pin, and the taper hole on lead plug head and
Gap between connecting rod be present.
The driving shaft is hollow cylindrical structural, is provided with the upper bottom middle position of driving shaft circular recessed
Groove, form the cavity configuration up and down of driving shaft.
Described interchangeable lead plug hole includes lead plug hole, carbon seal ring, sealing clamping sleeve and end cap, and wherein lead plug hole is pacified
Go out mounted in preceding case delivery port, before carbon seal ring is pressed against by end cap and sealing clamping sleeve on box body, and pass through screw
Before lead plug hole is fixed on by connection on box body.
Big 2 to 8 degree of taper of the taper ratio lead plug head in the lead plug hole.This scheme can increase lead plug head portion and lead plug hole
Gap when flow control starts, can not normally it be inserted after preventing connecting rod and lead plug expanded by heating, when lead plug head portion enters flow control
After a segment distance is run in hole, sliding contact can be produced with lead plug hole, and adaptation function is realized by the thrust of spring.
The lead plug head can be with slight oscillatory, and amplitude of fluctuation is 1 to 5 degree；And lead plug head first half is rounded down, and has
Beneficial to the friction reduced between lead plug hole and lead plug head, solve when connecting rod is by thermal stretching, a part of connecting rod is offset by spring
Thermal deformation after, the axis in lead plug hole and the misaligned phenomenon of axis of lead plug head, it is ensured that close between lead plug hole and lead plug head
Closure.
The interchangeable lead plug hole, end cap can be removed, lead plug hole is taken out, in time after magnesium liquid condenses to a certain extent
Changed or cleared up.
The beneficial effects of the utility model are：The present invention passes through lead plug on the premise of flow control device flow control range is ensured
Head and the taper in lead plug hole are poor, after solving connecting rod temperature distortion, stuck problem when lead plug head inserts；The linkage can
Adaptive thermal deformation, under lead plug head float function and fillet anti-drag function auxiliary, it is ensured that the flow control precision of lead plug, solve tight
Lead plug head axes and lead plug axially bored line non-overlapping problem during closed conjunction；Linkage is on the premise of range is ensured, between activity
Gap is smaller, is advantageous to improve the sealing property of sealing dress, effectively prevents inert gas from revealing；Interchangeable lead plug hole, can be at any time
Dismounting, is easy to that it is cleared up or changed in time.
Brief description of the drawings
Fig. 1 is case lead plug flow control apparatus structure schematic diagram before roll-casting of magnesium alloy machine；
Fig. 2 is structural representation at case lead plug flow control device I before roll-casting of magnesium alloy machine；
Fig. 3 is the structural representation of case lead plug flow control device linkage before roll-casting of magnesium alloy machine；
Fig. 4 is the schematic diagram that case lead plug flow control device connecting rod is connected with lead plug head before roll-casting of magnesium alloy machine；
Fig. 5 is structural representation at case lead plug flow control device II before roll-casting of magnesium alloy machine；
Fig. 6 is driving shaft part schematic diagram in bar linkage structure；
Fig. 7 is the top view of driving shaft part in bar linkage structure；
In figure：1st, support frame；2nd, electric pushrod；3rd, driving shaft；4th, cover plate；5th, inner cap；6th, preceding box body；7th, connecting rod；8、
Lead plug head；9th, lower sleeve cover；10th, upper sleeve cover；11st, screw box；12nd, spring；13rd, guide finger；14th, supporting pin；15th, lead plug hole；
16th, carbon seal ring；17th, clamping sleeve is sealed；18th, end cap；19th, bearing pin.
Embodiment
The utility model is illustrated below in conjunction with accompanying drawing, as shown in Fig. 1~7, the utility model provides a kind of band
Case lead plug flow control device before the roll-casting of magnesium alloy machine of adaptation function, it mainly includes linkage and interchangeable lead plug hole；Its
Middle linkage includes support frame 1, electric pushrod 2, driving shaft 3, connecting rod 7, lead plug first 8, lower sleeve cover 9, upper sleeve cover 10, pressure spiral shell
Mother 11, spring 12, guide finger 13 and supporting pin 14；As shown in Figures 1 to 3, lower sleeve cover 9 is sleeved on first, equipped with guide finger 13
Connecting rod 7 on, supporting pin 14 is then inserted to the correspondence position of connecting rod 7, spring 12 is installed, driving shaft 3 is sleeved on connecting rod 7
On, carried out by guide finger 13 circumferentially positioned, install spring 12 and compressed by screw box 11 again, to connecting rod axial direction
Row constraint is entered in displacement.Finally lower sleeve cover 9, upper sleeve cover 10 are fixed on driving shaft 3 by bolt, formed entirely through actively
Axle on axle 3 is articulated with the support frame 1 being fixed on cover plate 4, and under the promotion of electric pushrod 2, lead is driven by connecting rod 7
Chock plug 8 is swung.The link position of cover plate 4 and preceding box body 6, is provided with inner cap 5.Interchangeable lead plug hole includes lead plug hole 15, stone
Black sealing ring 16, sealing clamping sleeve 17 and end cap 18；As shown in figure 4, connecting rod 7 and lead plug first 8 are be hinged by bearing pin 19, but rotate
Limited angle, only can slight fluctuation；As shown in figure 5, after lead plug hole 15 is arranged on preceding box body 6, pass through carbon seal ring
16 are sealed, and are fixed by sealing clamping sleeve 17 and end cap 18, before end cap 18 is bolted on box body 6,
Lead plug hole 15 is fixed by bolt simultaneously.
As shown in Figure 6,7, driving shaft is hollow cylindrical structural, is provided with the upper bottom middle position of driving shaft
Circular groove, the cavity configuration up and down of driving shaft is formed, for setting spring.
In specific work process：The stroke of spring 12 is adjusted by screw box 11 when casting starts, makes lead plug first 8
With the normally closed of lead plug hole 15, magnesium liquid is conveyed in box body 6 forward by turning liquid pump, after liquid level reach a certain height, electronic
In the presence of push rod 2, swung by the drivening rod 7 of driving shaft 3, make to keep certain opening degree between lead plug first 8 and lead plug hole 15.Work
After making a period of time, temperature distortion can occur for connecting rod 7 and lead plug first 8, determine opening degree between lead plug first 8 and lead plug hole 15 and can send out
Raw certain change, monitors rate of discharge by flow monitoring device, flow signal is fed back into control system, according to control system
The signal sent, the drivening rod 7 of electrician's push rod 2 enter Mobile state adjustment.
According to field working conditions, when needing stop production to overhaul and plant maintenance, it is necessary to be in lead plug first 8 and lead plug hole 15
Fully closed conjunction state, but now temperature distortion has occurred for connecting rod 7 and lead plug first 8, if push and pull system is without adaptive ability, it can not meet
The thermal expansion length of connecting rod 7 can be offset by the decrement of spring 12 it is required that having benefited from the present invention, and first 8 head of lead plug can
Slight oscillatory, and there is certain radian, it ensure that lead plug first 8 and the normally closed in lead plug hole 15.Meanwhile in first 8 He of lead plug
Lead plug hole 15 completely disengages, and under connecting rod 7 and the working environment of the temperature distortion of lead plug first 8, because the taper of lead plug hole 15 is more than
The taper of lead plug first 8, it ensure that the normal insertion of lead plug head.
Technical scheme in the utility model is clearly and completely described, based on the scheme in the utility model, sheet
All other scheme that field those of ordinary skill is obtained under the premise of creative work is not made, it is new to belong to this practicality
The scope of type protection.
Claims (4)
1. case lead plug flow control device, structure include before a kind of roll-casting of magnesium alloy machine：Linkage and interchangeable lead plug hole；Its feature
It is：The linkage is by support frame, electric pushrod, driving shaft, connecting rod, lead plug head, upper and lower upper shield, spring, bearing pin, guiding
Pin, screw box and supporting pin composition；The interchangeable lead plug hole, structure include lead plug hole, carbon seal ring, sealing clamping sleeve
And end cap；
Described linkage by support frame, electric pushrod, driving shaft, connecting rod, lead plug head, upper sleeve cover, lower sleeve cover, spring, lead
Formed to pin, bearing pin, screw box and supporting pin；Wherein driving shaft and electric pushrod are respectively hinged at support frame both sides, and lead to
Connecting shaft is crossed to be hinged both；Driving axle housing by the axis hole on driving shaft and is fixed on connecting rod on connecting rod
Guide finger, the displacement in addition to connecting rod axis direction is limited；Spring is arranged in driving shaft upper and lower cavity, by the branch on connecting rod
Support pin and screw box are fixed, and elastic restraint is carried out to the displacement on connecting rod axis direction；Upper and lower upper shield is fixed on master by bolt
The upper and lower side of moving axis；
In the lower end of connecting rod, lead plug head is connected on connecting rod by bearing pin, and exists between the taper hole and connecting rod on lead plug head
Gap；
Lead plug hole in the interchangeable lead plug hole is arranged on preceding case water outlet, solid by being compressed by sealing clamping sleeve and end cap
The carbon seal ring being scheduled on casing is sealed, while the position in lead plug hole is limited by the bolt on end cap.
2. case lead plug flow control device before a kind of roll-casting of magnesium alloy machine according to claim 1, it is characterised in that described interchangeable
The taper of the taper ratio lead plug head in formula lead plug hole, wherein lead plug hole is big 2 °~and 8 °.
3. case lead plug flow control device before a kind of roll-casting of magnesium alloy machine according to claim 1, it is characterised in that the lead plug
Head is rounded down, 1 mm of radius of corner~4mm.
4. case lead plug flow control device before a kind of roll-casting of magnesium alloy machine according to claim 1, it is characterised in that the lead plug
Head connecting rod between be hinged with axle, can slight oscillatory, amplitude of fluctuation be 1 °~5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720377343.9U CN206702179U (en) | 2017-04-12 | 2017-04-12 | Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720377343.9U CN206702179U (en) | 2017-04-12 | 2017-04-12 | Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206702179U true CN206702179U (en) | 2017-12-05 |
Family
ID=60454744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720377343.9U Withdrawn - After Issue CN206702179U (en) | 2017-04-12 | 2017-04-12 | Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206702179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903282A (en) * | 2017-04-12 | 2017-06-30 | 太原科技大学 | Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine |
| CN110394441A (en) * | 2019-06-26 | 2019-11-01 | 洛阳铜加工集团有限责任公司 | Case flow control device before a kind of bar gate type roll-casting of magnesium alloy machine |
-
2017
- 2017-04-12 CN CN201720377343.9U patent/CN206702179U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903282A (en) * | 2017-04-12 | 2017-06-30 | 太原科技大学 | Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine |
| CN106903282B (en) * | 2017-04-12 | 2019-04-09 | 洛阳铜加工集团有限责任公司 | Case lead plug flow control device before a kind of roll-casting of magnesium alloy machine |
| CN110394441A (en) * | 2019-06-26 | 2019-11-01 | 洛阳铜加工集团有限责任公司 | Case flow control device before a kind of bar gate type roll-casting of magnesium alloy machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171205 Effective date of abandoning: 20190409 |