CN103191925B - Bidirectional locking method and mechanism for fixed arm of roll stand - Google Patents
Bidirectional locking method and mechanism for fixed arm of roll stand Download PDFInfo
- Publication number
- CN103191925B CN103191925B CN201310106193.4A CN201310106193A CN103191925B CN 103191925 B CN103191925 B CN 103191925B CN 201310106193 A CN201310106193 A CN 201310106193A CN 103191925 B CN103191925 B CN 103191925B
- Authority
- CN
- China
- Prior art keywords
- stop pin
- sleeve
- push rod
- fixed arm
- compression spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the field of installation of a fixed arm of a roller frame, in particular to a bidirectional locking method and a bidirectional locking mechanism of the fixed arm of the roller frame. The bidirectional locking mechanism comprises a first locking pin and a second locking pin and is characterized in that a first ejector rod is arranged on the side, corresponding to the large end, of the first locking pin, a second ejector rod is arranged on the side, corresponding to the large end, of the second locking pin, the first ejector rod is connected with one end of a sleeve, the other end of the sleeve is in threaded connection with a nut, a compression spring is arranged in the sleeve, a piston is arranged on the other end of the second ejector rod, and the piston is located in the sleeve and corresponds to the end portion of the compression spring. Compared with the prior art, the invention has the beneficial effects that: 1) the locking between the fixing arm and the frame is more reliable. 2) The disassembling and assembling steps are simplified, and the working efficiency is improved.
Description
Technical field
The present invention relates to roll stand fixed arm installing area, particularly to a kind of bidirectional locking method of roll stand fixed arm
And mechanism.
Background technology
∮ 177PQF continuously hot rolling seamless steel pipe unit is a kind of six frame three-roller type tandem rolling mills.See Fig. 1 and Fig. 2, roll
Fixed arm (2) one end hinge in frame (1) is hinged with frame, and the other end is then with two stop pin (3) lockings.
In order to avoid during steel rolling, stop pin is scurried out by vibrations, with holding screw (4), stop pin is solid again after stop pin penetrates pin-and-hole
Fixed.
Through production practices after a while, find that this lock mode there is problems in that
1) the screwed hole short-term under the corrosion of roll cooling water coupling holding screw, lost efficacy.Stop pin is often scurried out, and makes
One-tenth accident.
2) holding screw tail end inner hexagon spanner hole always stifled full iron scale and greasy dirt, dismantles the most difficult.
3) two holding screws and stop pin will first be pulled down by each roll change of roll stand, then opened around hinge by fixed arm
Carry out roll change, be closed again fixed arm afterwards, stop pin is installed, fasten holding screw.Dismounting and assembling process are loaded down with trivial details, waste
Time.
Summary of the invention
It is an object of the invention to provide bidirectional locking method and the mechanism thereof of a kind of roll stand fixed arm, it is ensured that fixed arm and machine
Frame locking is reliable, it is to avoid equipment breakdown occurs；Simplify dismounting and installation step, it is to avoid the work caused because of connector inefficacy is strong
Degree increases, and improves working performance.
For achieving the above object, the present invention adopts the following technical scheme that realization:
A kind of bidirectional locking method of roll stand fixed arm, arranges reversible lock between two stop pins of the fixed arm other end
Tight mechanism, sets compression spring, when compression spring is compressed, while realizing two stop pins simultaneously in bidirectional locking mechanism
Locking or dismounting.
Described bidirectional locking mechanism, including stop pin one and stop pin two, the big rostral of corresponding stop pin one is provided with push rod one,
The big rostral of corresponding stop pin two is provided with push rod two, and push rod one is connected with one end of sleeve, the other end of sleeve and nut thread
Connect, be provided with compression spring in sleeve, the other end of push rod two is provided with piston, piston be positioned at sleeve and with compression spring
End is corresponding.
It is provided with sealing gasket between described nut and the end face of sleeve.
Between described stop pin one and push rod one, between stop pin two and push rod two, it is respectively equipped with O.
Compared with prior art, the invention has the beneficial effects as follows: 1) bi-directional locking arrangement makes the lock between fixed arm and frame
Fixed the most more reliable, lubrication fully, good seal, service life is long, stopped pin and fallen phenomenon, it is to avoid the generation of equipment breakdown.
2) installation of two stop pins can be completed the most simultaneously, simplify dismounting and installation step, convenient and practical, improve operation
Efficiency.3) eliminate holding screw, it is to avoid the dismounting trouble caused because of Joint failure, save manpower.
Accompanying drawing explanation
Fig. 1 is that in prior art, fixed arm locks partial schematic diagram with frame；
Fig. 2 is prior art China arms and frame lock-out state schematic diagram；
Fig. 3 is embodiment of the present invention structural representation；
Fig. 4 is embodiment of the present invention application state schematic diagram.
In figure: 1-roll stand 2-fixed arm 3-stop pin 4-holding screw 5-stop pin one 6-stop pin two
7-push rod one 8-push rod two 9-sleeve 10-nut 11-piston 12-sealing gasket 13-compression spring 14-O type
Circle
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further:
Such as Fig. 3, Fig. 4, it is bidirectional locking mechanism example structure schematic diagram of the present invention, including stop pin 1 and stop pin
26, the big rostral top nest of corresponding stop pin 1 is provided with push rod 1, and the big rostral top nest of corresponding stop pin 26 is provided with top
Bar 28, push rod 1 is connected with one end of sleeve 9, and the other end of sleeve 9 is threadeded with nut 10, sets in sleeve 9
Have compression spring 13, the other end of push rod 28 to be provided with piston 11, piston 11 be positioned at sleeve 9 and with compression spring 13
End corresponding.
It is provided with sealing gasket 12 between the end face of nut 10 and sleeve 9, can seal, prevent cooling down water and enter sleeve.
Between stop pin 1 and push rod 1, between stop pin 26 and push rod 28, it is respectively equipped with O 14.O
The effect of 14 is to prevent from cooling down water immersion to make part produce corrosion, and can eliminate fit-up gap and damping.
Apparatus of the present invention, when roll stand fixed arm is locked, first make fixed arm Guan Bi and align with roll stand pin-and-hole, wearing
Entering stop pin 1 and stop pin 26, then one holds push rod 28, and another holds sleeve 9, firmly compresses pressure
Contracting spring 13, inserts in the top nest of stop pin 1 and the big rostral of stop pin 26 respectively, i.e. by push rod 1 and push rod 28
Complete the installation of two stop pins simultaneously, otherwise compress compression spring 13 and stop pin can be pulled down.
Also can have oil groove on the external cylindrical surface of piston 11, sleeve 9 load moderate lubrication fat be reduced or avoided compression spring,
The parts depreciations such as piston and corrosion.
Claims (1)
1. the bidirectional locking method of a roll stand fixed arm, it is characterised in that use bidirectional locking mechanism to realize, described
Bidirectional locking mechanism includes that stop pin one and stop pin two, the big rostral top nest of corresponding stop pin one are provided with push rod one, corresponding locking
The big rostral top nest of pin two is provided with push rod two, and push rod one is connected with one end of sleeve, and the other end of sleeve is connected with nut thread,
Being provided with compression spring in sleeve, the other end of push rod two is provided with piston, and piston is positioned at sleeve relative with the end of compression spring
Should；Described bidirectional locking mechanism for roll stand fixed arm lock time, first make fixed arm Guan Bi and with roll stand pin-and-hole pair
Just, penetrating stop pin one and stop pin two, then one holds push rod two, and another holds sleeve, firmly compresses compression
Spring, inserts push rod one and push rod two respectively in the top nest of stop pin one and the big rostral of stop pin two, completes two the most simultaneously
The installation of stop pin, on the contrary compress compression spring and stop pin can be pulled down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106193.4A CN103191925B (en) | 2013-03-28 | 2013-03-28 | Bidirectional locking method and mechanism for fixed arm of roll stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106193.4A CN103191925B (en) | 2013-03-28 | 2013-03-28 | Bidirectional locking method and mechanism for fixed arm of roll stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103191925A CN103191925A (en) | 2013-07-10 |
| CN103191925B true CN103191925B (en) | 2016-08-10 |
Family
ID=48714843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310106193.4A Active CN103191925B (en) | 2013-03-28 | 2013-03-28 | Bidirectional locking method and mechanism for fixed arm of roll stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103191925B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790501A (en) * | 2017-12-01 | 2018-03-13 | 中国重型机械研究院股份公司 | A kind of oil-air lubrication quick plug-pull mechanism and application method |
| CN113399467B (en) * | 2021-06-18 | 2023-06-27 | 广东韶钢松山股份有限公司 | Safety device for universal shaft of vertical roller and use method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600987A (en) * | 1993-10-06 | 1997-02-11 | Achenbach Buschhutten Gmbh | Device for positioning and locking a chock on a roll pin during installation of a set of rolls in or removal from a roll stand |
| CN102078883A (en) * | 2010-11-17 | 2011-06-01 | 中冶京诚工程技术有限公司 | Hydraulic cylinder earring pin shaft locking device |
| CN102189400A (en) * | 2010-02-18 | 2011-09-21 | Skf公司 | Rod tensioning device |
| CN202045139U (en) * | 2011-04-29 | 2011-11-23 | 太原重工股份有限公司 | Rapid locking device for locking roll of tube mill |
-
2013
- 2013-03-28 CN CN201310106193.4A patent/CN103191925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600987A (en) * | 1993-10-06 | 1997-02-11 | Achenbach Buschhutten Gmbh | Device for positioning and locking a chock on a roll pin during installation of a set of rolls in or removal from a roll stand |
| CN102189400A (en) * | 2010-02-18 | 2011-09-21 | Skf公司 | Rod tensioning device |
| CN102078883A (en) * | 2010-11-17 | 2011-06-01 | 中冶京诚工程技术有限公司 | Hydraulic cylinder earring pin shaft locking device |
| CN202045139U (en) * | 2011-04-29 | 2011-11-23 | 太原重工股份有限公司 | Rapid locking device for locking roll of tube mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103191925A (en) | 2013-07-10 |
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