CN207723190U - A kind of enclosed structure of milling train suspension hydraulic cylinder - Google Patents
A kind of enclosed structure of milling train suspension hydraulic cylinder Download PDFInfo
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- CN207723190U CN207723190U CN201721575342.1U CN201721575342U CN207723190U CN 207723190 U CN207723190 U CN 207723190U CN 201721575342 U CN201721575342 U CN 201721575342U CN 207723190 U CN207723190 U CN 207723190U
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- pull rod
- firm banking
- piston rod
- oil cylinder
- hole
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Abstract
A kind of enclosed structure of milling train suspension hydraulic cylinder, including hanging oil cylinder and pull rod, the pull rod is connected with the piston rod of hanging oil cylinder, hanging oil cylinder is arranged by firm banking in memorial archway, the through hole placed for piston rod and pull rod is offered on firm banking, hanging oil cylinder is fixed on the side of firm banking, piston rod is arranged in through hole, the other end that the inner end of pull rod penetrates through hole is connected with piston rod, the upper end of firm banking correspond to the position that is connect with piston rod of pull rod offer be connected with through hole, the trepanning convenient for observing and overhauling.The utility model is simple and reasonable, it is not only able to detect whether pull rod loosens at any time, it can also quick-replaceable pull rod or fastening pull rod, it effectively prevent suspension piston rod connection to loosen, substantially reduce fault handling time and repair time, improve overhaul efficiency, it is ensured that milling train stable operation effectively avoids suspension is abnormal from falling the generation for leading to accident.
Description
Technical field
The utility model belongs to stainless steel production technical field, and in particular to a kind of maintenance knot of milling train suspension hydraulic cylinder
Structure.
Background technology
Having in Sendzimir mill group in enterprises of producing stainless steel is provided by French DMS companies, is special
Milling train for stainless steel production.Every milling train possesses 20 rolls (8 backing rolls, 10 intermediate calender rolls and 2 working rolls), branch
The fixation of support roller is fixed by card slot and retaining mechanism, and upper intermediate calender rolls are fixed by 5 suspension hydraulic mechanisms, lower intermediate calender rolls and working roll
It is not required to fix.Upper intermediate calender rolls suspension is more demanding, needs enough pulling force that roller is hanging, should also coordinate pressure roller and bias
Roller ensures required depressing position, it is therefore desirable to which a special entity holds intermediate calender rolls work, including is driven side linkage and grasps
Make side mounting mechanism.
Fore side suspension mechanism forms：Pull rod, oil cylinder, fixed block, suspension external member, drop-hanger bearing and hydraulic pipeline
Deng.In use since memorial archway inner space is narrow, oil cylinder is fixed on by being threadedly coupled the two on fixed block with pull rod, then will be consolidated
Determine block to be fixed in memorial archway, ensures mechanism reliability service.But since oil cylinder and pull rod are by being threaded in long-term high frequency rolling
Thread looseness phenomenon is will often find that under power and suspension force impact, also attempts to add the methods of fastening agent before, but cannot be effective
Hidden danger is excluded, and less serious case's shutdown dismounting all components re-secure once accident occurs, severe one causes suspension external member to fall, and makes
At roller system card resistance, the accidents such as fire occur.Therefore it solves suspension pull rod to fall off hidden danger, available point inspection loosens situation, energy to pull rod
Enough quick-replaceable pull rods, not only ensure milling train stable operation, effectively avoid suspension is abnormal from falling the generation for leading to accident.
Fixed block in the prior art belongs to full closeding state, by fixed block assembly can not available point inspection loosened to pull rod
Once situation, can not Quick fastening pull rod, pull rod gryposis or card resistance can not quick-replaceable pull rod.
Invention content
Technical problem to be solved in the utility model is to provide a kind of conjunction simple in structure for the above-mentioned state of the art
Reason can effectively prevent pull rod connection to loosen, the enclosed structure of the milling train suspension hydraulic cylinder of raising overhaul efficiency.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of maintenance of milling train suspension hydraulic cylinder
Structure, including hanging oil cylinder and pull rod, the pull rod are connected with the piston rod of hanging oil cylinder, it is characterised in that：The suspension
Oil cylinder is arranged by firm banking in memorial archway, and the middle part of firm banking, which is longitudinally offered, to be run through for piston rod with what pull rod placed
Hole, hanging oil cylinder are fixed on the top of firm banking, and piston rod is plugged in through hole, and the inner end of pull rod penetrates under through hole
End is connected with the head of piston rod, and the link position that pull rod and piston rod are corresponded in the front of firm banking is offered and passed through
Perforation be connected, the trepanning convenient for observing and overhauling.
As an improvement, the head of the piston rod forms the external thread section being connected with pull rod, the upper end of external thread section
Recessed in the middle part of the inner end of pull rod to offer corresponding internal thread hole equipped with spanner bayonet, the head of pull rod and piston rod passes through screw thread
It is connected and fixed, the middle part position on the upper side that trepanning is opened in firm banking is corresponding with the position of head spanner bayonet of piston rod.
As an improvement, the trepanning is rectangular opening, a diameter of 11~13mm of piston rod, spanner bayonet on piston rod
The size of a diameter of 9~11mm, trepanning are 15~17mm × 9~11mm.
It improves again, the guiding jackscrew for preventing pull rod from rotating is installed, the outer surface of pull rod is longitudinally opened on the firm banking
Equipped with for be oriented to jackscrew head be inserted into guiding groove, offered in the positive lower end of firm banking be connected with through hole,
For being oriented to the screw hole of jackscrew installation.
It improves again, the bottom periphery of the hanging oil cylinder is set there are four connecting hole, and corresponding spiral shell is offered on firm banking
Hanging oil cylinder is fixed on firm banking by keyhole by bolt.
Finally, at least four fixing threaded holes are distributed along the circumference on the firm banking, it will fixed bottom by fixing bolt
Seat is fixed on memorial archway.
Compared with prior art, the utility model has the advantage of：Opened up on firm banking convenient for observation and maintenance open
Hole, can detect by an unaided eye piston rod and pull rod connection at any time in normal work or when replacing intermediate calender rolls, moreover it can be used to M10
Fork spanner clamping oil cylinder head has reached Quick fastening pull rod or replaces pull rod.The utility model is simple and reasonable, not only can
Whether enough pull rods of detection at any time loosen, moreover it is possible to and quick-replaceable pull rod or fastening pull rod effectively prevent suspension piston rod connection to loosen,
Fault handling time and repair time are substantially reduced, improves overhaul efficiency, it is ensured that milling train stable operation effectively avoids hanging
Exception falls the generation for leading to accident.
Description of the drawings
Fig. 1 is the structural schematic diagram that the utility model is mounted in memorial archway；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is structural schematic diagrams of the Fig. 2 under pull rod and hanging oil cylinder discrete state；
Fig. 4 is the structural schematic diagram after hanging oil cylinder is connect with firm banking；
Fig. 5 is the structural schematic diagram of firm banking；
The longitudinal sectional view of Fig. 6 bitmaps 5.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in figs. 1 to 6, a kind of enclosed structure of milling train suspension hydraulic cylinder, including hanging oil cylinder 1, pull rod 2 and fixed bottom
Seat 3, hanging oil cylinder 1 is arranged in the top of firm banking 3, and scuffing of cylinder bore 2 is arranged in the lower section of firm banking 3, pull rod 2 and hanging oil cylinder
1 piston rod 11 is connected, and the middle part of firm banking 3 longitudinally offers the through hole 31 placed for piston rod 11 and pull rod 2, hangs
The bottom periphery for hanging oil cylinder 1 is set there are four connecting hole, and the upper end of firm banking 3 offers correspondence positioned at the periphery of through hole 31
Bolt hole 33, hanging oil cylinder 1 is fixed on firm banking 3 by bolt 5, piston rod 11 be arranged in through hole 31, Gu
Determine to be distributed along the circumference at least four fixing threaded holes 34 on pedestal 3, firm banking 3 be fixed on memorial archway by fixing bolt 6,
Hanging oil cylinder 1 is just arranged by firm banking 3 in memorial archway in this way；The head of piston rod 11, which is formed, to be connected with pull rod 2
The upper end of the external thread section 12 of undergauge, external thread section 12 is equipped with spanner bayonet 13, is recessed in the middle part of the inner end of pull rod 2 in corresponding
Threaded hole 21, the other end that the inner end of pull rod 2 penetrates through hole 31 is threadedly coupled with piston rod 11, in the front of firm banking 3
It offers and is connected with through hole 11, convenient for observation with the position of the junction spanner bayonet 13 of piston rod 11 corresponding to pull rod 2
And the trepanning 32 of maintenance, trepanning 32 are rectangular opening, a diameter of 12mm of the piston rod 11 of the present embodiment, the spanner card of piston rod 11
Too small 11 intensity of then piston rod of diameter of a diameter of 10mm of mouth 13, spanner bayonet 13 are insufficient, and too big then tool cannot be introduced into, this
Embodiment trepanning 32 is dimensioned to 16mm × 10mm, with facilitate M10 fork spanners stretch into trepanning 33 Quick fastening pull rod 2 or
Person replaces pull rod 2；Pull rod 2 rotates in order to prevent, and being equipped on firm banking 3 prevents from being oriented to jackscrew 4, the outer surface of pull rod 2
Longitudinal direction offer for be oriented to jackscrew 4 head be inserted into guiding groove 22, the positive Middle face lower end of firm banking 3 offer with
The screw hole 35 that through hole 31 is connected, is installed for being oriented to jackscrew 4.
When installation, first hanging oil cylinder 1 is connect with pull rod 2, pull rod 2 is screwed into after being connect with the piston rod 11 of hanging oil cylinder 1
It is oriented to jackscrew 4, to prevent pull rod 2 from rotating, is then fixed on hanging oil cylinder 1 on firm banking 3 by 4 bolts 5, then pass through
Firm banking 3 is fixed on memorial archway by fastening bolt 6.
Before improvement, due to the trepanning that do not overhaul, the case where pull rod 2 is connect with piston rod 11 cannot be observed at any time, once
Pull rod 2 loosens or falls needs and dismantles whole fixed block, then the dismounting of hanging oil cylinder 1, dismounting pull rod 2, pull rod 2 is again solid
Fixed, time dress hanging oil cylinder 1, time dress fixed block, take needs 2 hours.
And the present embodiment is not dismantled due to having opened up trepanning 32 on firm banking 3 in firm banking 3 and hanging oil cylinder 1
In the case of can directly return dress pull rod 2, take only need 5 minutes.Fault handling time is substantially reduced, by milling train one hour
2500 yuan of calculating of indirect loss, about save 4900 yuan every time.Substantially reduce the repair time；In addition, improve before structure without
The inspection of method point loosens situation to pull rod 2, can quickly check whether pull rod 2 loosens after improvement.
Through implementing to track, situation is loosened to pull rod 2 using the enclosed structure energy available point inspection of the utility model, is repeatedly replaced
Pull rod 2, it is all simple light, the repair time is substantially reduced, service personnel's working hour, operational excellence after replacement are saved, it is ensured that
The safe and stable operation of system can also reduce operation cost of enterprises, it is often more important that reduce suspension pull rod and fall and bring
Risk.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (6)
1. a kind of enclosed structure of milling train suspension hydraulic cylinder, including hanging oil cylinder and pull rod, the work of the pull rod and hanging oil cylinder
Stopper rod is connected, it is characterised in that：The hanging oil cylinder is arranged by firm banking in memorial archway, and the middle part of firm banking is longitudinal
The through hole placed for piston rod and pull rod is offered, hanging oil cylinder is fixed on the top of firm banking, and piston rod, which is plugged on, to be passed through
In perforation, the inner end of pull rod penetrates the lower end of through hole and is connected with the head of piston rod, corresponds in the front of firm banking
Pull rod offered with the link position of piston rod be connected with through hole, the trepanning convenient for observing and overhauling.
2. enclosed structure according to claim 1, it is characterised in that：The head of the piston rod is formed to be connected with pull rod
The upper end of the external thread section connect, external thread section is equipped with spanner bayonet, is recessed with corresponding internal thread hole in the middle part of the inner end of pull rod, draws
The head of bar and piston rod is connected through a screw thread fixation, and trepanning is opened in the head of the middle part position on the upper side and piston rod of firm banking
The position of portion's spanner bayonet is corresponding.
3. enclosed structure according to claim 2, it is characterised in that：The trepanning be rectangular opening, piston rod it is a diameter of
The size of 11~13mm, a diameter of 9~11mm of the spanner bayonet on piston rod, trepanning are 15~17mm × 9~11mm.
4. enclosed structure according to claim 1 or 2 or 3, it is characterised in that：Being equipped on the firm banking prevents from drawing
The guiding jackscrew of bar rotation, the outer surface of pull rod longitudinally offers the guiding groove being inserted into for the head for being oriented to jackscrew, in fixation
The positive lower end of pedestal offers the screw hole for being connected with through hole, being installed for being oriented to jackscrew.
5. enclosed structure according to claim 1 or 2 or 3, it is characterised in that：The bottom periphery of the hanging oil cylinder is equipped with
Four connecting holes, the upper surface of firm banking offer corresponding bolt hole, and hanging oil cylinder is fixed on fixed bottom by bolt
On seat.
6. enclosed structure according to claim 1 or 2 or 3, it is characterised in that：It is distributed along the circumference on the firm banking
Firm banking is fixed on memorial archway by least four fixing threaded holes by fixing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721575342.1U CN207723190U (en) | 2017-11-22 | 2017-11-22 | A kind of enclosed structure of milling train suspension hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721575342.1U CN207723190U (en) | 2017-11-22 | 2017-11-22 | A kind of enclosed structure of milling train suspension hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207723190U true CN207723190U (en) | 2018-08-14 |
Family
ID=63088463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721575342.1U Active CN207723190U (en) | 2017-11-22 | 2017-11-22 | A kind of enclosed structure of milling train suspension hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207723190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422737A (en) * | 2020-04-01 | 2020-07-17 | 中冶宝钢技术服务有限公司 | Hot rolling mill oil cylinder replacing device and using method thereof |
-
2017
- 2017-11-22 CN CN201721575342.1U patent/CN207723190U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422737A (en) * | 2020-04-01 | 2020-07-17 | 中冶宝钢技术服务有限公司 | Hot rolling mill oil cylinder replacing device and using method thereof |
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