CN205732372U - A kind of prestressing force retaining mechanism of section straightener combination collars - Google Patents
A kind of prestressing force retaining mechanism of section straightener combination collars Download PDFInfo
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- CN205732372U CN205732372U CN201620574123.0U CN201620574123U CN205732372U CN 205732372 U CN205732372 U CN 205732372U CN 201620574123 U CN201620574123 U CN 201620574123U CN 205732372 U CN205732372 U CN 205732372U
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- prestressing force
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Abstract
The prestressing force retaining mechanism of a kind of section straightener combination collars, including aligning roll shaft, combination collars, hydraulic elongator, prestressed draw-bar；Combination collars is enclosed within the right axle head of aligning roll shaft；Being penetrated on the left of the central through hole of aligning roll shaft by prestressed draw-bar, the right part of prestressed draw-bar inserts the cylinder block inner chamber of hydraulic elongator, and the right part projection of prestressed draw-bar screws into the female thread of inner chamber of cylinder block；Piston ring is tightly against the end face of the right spindle nose of smoothing roll；Screw the trapezoidal nut on hydraulic elongator hold-down ring left end face to be pressed in its right end face of combination collars.The prestressing force that this utility model is produced after being stretched by Pre-stressed pole by hydraulic elongator is changed into energy hold-down roller sheet and the normal pressure of roller shell, fixed Combination collars on smoothing roll effectively simultaneously.The pulling force that Pre-stressed pole produces is converted into static friction torque, effectively transmits straightening torque, eliminate bonded mode, service life length, convenient disassembly.
Description
Technical field
This utility model relates to metallurgical shaped steel leveller equipment field.
Background technology
Section straightener is the visual plant in type steel production line.The smoothing roll of section straightener is divided into overall aligning collars
With combination collars two ways.Combination collars is made up of roller shell and roller sheet, is combined by different roller sheets, can obtain difference
The aligning roll shape that shaped steel needs.The appearance of combination collars, greatly reduces the consumption of smoothing roll.But, combine aligning at present
Collars fixed form on aligning roll shaft still uses relatively backward nut check mode, and the mode of transmission straightening torque is also
It is to use traditional bonded mode.
At present, in producing real process, there is following two in traditional combination collars fixed mechanism on aligning roll shaft
The defect of aspect: 1, in actual production process, is manually locked at smoothing roll owing to combining collars only with double nut
Spindle nose on, under the operating mode of bump and rotation, locking nut often loosens, cause smoothing roll in straightening process often
Come off, be prone to accidents.2, the roller sheet of combination collars is connected with collars by bonded mode, and collars is further through bonded side
Formula is connected with aligning roll shaft, and straightening torque relies on above-mentioned double bond to transmit.Owing in straightening process, impulsive force is relatively big, easily
Causing connecting key to be subject to align impulsive force and conquassation occurs, once connecting key is by conquassation, and roller sheet is difficult to disassemble from roller shell,
Roller shell also is difficult to disassemble from aligning roll shaft, can only be dismantled by failure mode, cause the infringement of equipment.
Utility model content
The purpose of this utility model seeks to solve problem above, it is provided that the prestressing force of a kind of section straightener combination collars
Retaining mechanism, effectively can combine straightener collars and be fixed on aligning roll shaft, can reliably transmit again straightening torque simultaneously.
The technical solution of the utility model is so achieved: the prestressing force lock of a kind of section straightener combination collars
Tight mechanism, is characterized in: include that center has a through hole and right part is provided with the aligning roll shaft of protruding circular ring, combination collars, hydraulic pressure draw
Stretch device, the hold-down ring in " eight " shape, prestressed draw-bar；
Described combination collars includes roller shell, multiple roller sheet, round nut, is set with one by one by matched in clearance by multiple roller sheets
On roller shell, it is fixed at roller shell right-hand member round nut；
Described hydraulic elongator includes that the piston ring of cylindrical shape, center have the cylinder block of through hole, rotation set at cylinder
The trapezoidal nut at body rear portion, it is contained in the high-pressure quick connector of cylinder body afterbody；Cylinder body front end has cannelure, cylindric piston ring dress
In cannelure, between piston ring rear portion and high-pressure quick connector, it is provided with oil cylinder, in the middle part of inner chamber of cylinder block, is provided with female thread；
Described prestressed draw-bar is that cylinder is shaft-like, and left end and right part are equipped with cylindrical protrusions, left end convexity right part
Protruding thick, the excircle of right part cylindrical protrusions is provided with external screw thread；
On the external cylindrical surface of the cylinder block that hold-down ring is enclosed within towards a left side by the big mouth of matched in clearance hydraulic elongator；By group
Close collars to be enclosed within the right axle head of aligning roll shaft by matched in clearance；Prestressed draw-bar is left from the central through hole of aligning roll shaft
Side penetrates, and the left end cylindrical protrusions of prestressed draw-bar is stuck in outside the centre bore of aligning roll shaft left end, is "Ji" type by cross section
Retainer ring osculum forward from aligning roll shaft right-hand member be enclosed within prestressed draw-bar, make prestressed draw-bar be positioned at aligning roll shaft in
Heart position；The right part of prestressed draw-bar inserts the cylinder block inner chamber of the hydraulic elongator being cased with hold-down ring, prestressed draw-bar
Right part projection screw into the female thread of inner chamber of cylinder block, be fixed on hydraulic elongator by screw thread pair R；Piston ring is tightly
Prop up the end face of the right spindle nose of smoothing roll；Hold-down ring left end face is pressed on combination roller by the trapezoidal nut screwed on hydraulic elongator
In its right end face of ring.
The prestressing force that this utility model is produced after being stretched by Pre-stressed pole by hydraulic elongator is changed into and can compress simultaneously
Roller sheet and the normal pressure of roller shell, effectively fixed Combination collars on smoothing roll.The pulling force that Pre-stressed pole produces is converted into quiet
Moment of friction, transmits straightening torque effectively, eliminates bonded mode, service life length, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that combination collars of the present utility model assembles schematic diagram.
Fig. 3 is hydraulic elongator schematic diagram of the present utility model.
Fig. 4 is hold-down ring schematic diagram of the present utility model.
Fig. 5 is prestressed draw-bar schematic diagram of the present utility model.
In figure: 1. aligning roll shaft；2. prestressed draw-bar；3. combination collars；4. retainer ring；5. hold-down ring；6. trapezoidal nut；
7. cylinder body；8. high-pressure quick connector；9. piston ring；10. round nut；11. roller shells；12. roller sheets；R. screw thread pair.
Detailed description of the invention
It can be seen from figure 1 that this utility model include center have through hole aligning roll shaft 1, combination collars 3, hydraulic elongator,
Hold-down ring 5, prestressed draw-bar 2；The through hole left end of aligning roll shaft 1 is provided with the gross porosity thicker than through hole, and the right part of aligning roll shaft 1 is provided with
Protruding circular ring, for blocking the left end protruding ring of roller shell 11.
As it is clear from fig. 2 that combination collars 3 includes that left end has the tubular roller shell 11 of protruding ring, multiple roller sheet 12, round nut 10.
Multiple roller sheets 12 include roller sheet a, b, c, d, e, f ... etc., multiple roller sheets 12 are overlapped by technological requirement one by one by matched in clearance
It is contained on roller shell 11, and is fixed with round nut 10 on the right side of roller shell 11.
It can be seen from figure 3 that hydraulic elongator includes that the piston ring 9 of cylindrical shape, center have the cylinder block 7 of through hole, set
Trapezoidal nut 6 at cylinder body rear portion, it is contained in the high-pressure quick connector 8 of cylinder body 7 afterbody；Cylinder body 7 front end has cannelure, cylindric
Piston ring 9 is contained in cannelure, is provided with oil cylinder, is provided with in the middle part of cylinder body 7 inner chamber between piston ring 9 rear portion and high-pressure quick connector 8
Female thread.Inject hydraulic oil (500-700MPa) by high-pressure quick connector 8, piston ring 9 can be promoted to forward extend out 1-2mm.
As seen from Figure 4, cross section be the tubular hold-down ring 5 of " eight " font be steel workpiece, after the leading portion opening of hold-down ring 5 is big
End opening is little, can be enclosed within cylinder body 7 external cylindrical surface of hydraulic elongator by matched in clearance.
From figure 5 it can be seen that prestressed draw-bar 2 is made by steel alloy, shaft-like in cylinder, left end and right part are equipped with circular cylindrical projection
Rising, the right-hand member round bar of right part projection is processed into rectangular-shaped, it is simple to screwing screw thread after fixing with fixture, left end convexity right part is convex
Rising thick, the projection of right part just can penetrate from aligning roll shaft 1 central through hole left end, and left end projection is blocked in aligning roll shaft 1
In gross porosity outside heart through hole left end, right part cylindrical protrusions excircle is provided with external screw thread, and periphery grinding forms.Prestressing force
Pull bar 2 inserts in aligning roll shaft 1 central through hole, and the right part of prestressed draw-bar 2 inserts in the cylinder block 7 of hydraulic elongator
Chamber, the right part projection of prestressed draw-bar screws into the female thread of cylinder body 7 inner chamber, is fixed on hydraulic tensioning by screw thread pair R
On device.
Combination collars 3 is easily enclosed within the right axle head of right part projection of aligning roll shaft 1 by matched in clearance, will be pre-
The stress pull bar 2 central through hole on the left of aligning roll shaft 1 penetrates, and then cross section is " several " font by the right-hand member from aligning roll shaft 1
Retainer ring 4 be sleeved on prestressed draw-bar 2, retainer ring 4 make prestressed draw-bar be positioned at aligning roll shaft 1 center；Will
The excircle that the big mouth of hold-down ring 5 of " eight " font is enclosed within the cylinder block 7 of hydraulic elongator towards a left side is anterior；Hydraulic elongator is led to
Cross screw thread pair R to be tightened on the screw thread that prestressed draw-bar 2 right-hand member is protruding, and rotate screw thread pair, until piston ring 9 props up aligning
The end face of the right spindle nose of roller；Trapezoidal nut 6 on rotating hydraulic stretcher, is pressed against combination collars by hold-down ring 5 left end face
In its right end face.
Injecting hydraulic oil (500-700MPa) by the snap joint 8 on hydraulic elongator during work, hydraulic oil promotes lives
Plug ring 9 stretches out 1-2mm, and stretching prestressed draw-bar is extended 1-2mm in elastic range by its opposition (about 100 tons)；
After prestressed draw-bar elongation 1-2mm, define the gap of 1-2mm between trapezoidal nut and hold-down ring 5 faying face K, now, rotate
Trapezoidal nut 6 eliminates this gap；By the hydraulic oil pressure release of snap joint 8, now, prestressed draw-bar forms elastic deformation stress,
This power approximates the hydraulic oil active force (typically at about 100 tons) to piston ring.The stress that prestressed draw-bar is formed is to trapezoidal
Nut is combined with aligning roll shaft with roller sheet a faying face M, roller shell with hold-down ring faying face L, roller shell with hold-down ring faying face K, roller sheet
Face N produces normal pressure (about 100 tons), and combination collars is tightly secured on smoothing roll spindle nose by this pressure；Meanwhile, faying face K, L,
Normal pressure on M, N forms static friction torque when smoothing roll rotates, and this moment be enough to overcome straightening torque, thus without passing through
Bonded transmission straightening torque.
Claims (5)
1. the prestressing force retaining mechanism of a section straightener combination collars, it is characterised in that: include that center has through hole and the right side
Portion is provided with the aligning roll shaft (1) of protruding circular ring, combination collars (3), hydraulic elongator, hold-down ring (5) in " eight " shape, in advance should
Power pull bar (2)；
Described combination collars (3) includes roller shell (11), multiple roller sheet (12), round nut (10), multiple roller sheets (12) is passed through
Matched in clearance is sleeved on roller shell (11) one by one, is fixed at roller shell right-hand member round nut (10)；
Described hydraulic elongator includes the piston ring (9) of cylindrical shape, center has the cylinder block (7) of through hole, rotation set exists
The trapezoidal nut (6) at cylinder body rear portion, it is contained in the high-pressure quick connector (8) of cylinder body afterbody；Cylinder body front end has cannelure, cylindric
Piston ring is contained in cannelure, is provided with oil cylinder between piston ring rear portion and high-pressure quick connector, is provided with interior spiral shell in the middle part of inner chamber of cylinder block
Stricture of vagina；
Described prestressed draw-bar (2) is shaft-like in cylinder, and left end and right part are equipped with cylindrical protrusions, and left end convexity right part is convex
Rising thick, the excircle of right part cylindrical protrusions is provided with external screw thread；
Hold-down ring (5) is enclosed within the external cylindrical surface of cylinder block (7) of hydraulic elongator towards a left side by the big mouth of matched in clearance；Will
Combination collars (3) is enclosed within the right axle head of aligning roll shaft (1) by matched in clearance；By prestressed draw-bar (2) from aligning roll shaft
(1) penetrating on the left of central through hole, the left end cylindrical protrusions of prestressed draw-bar is stuck in outside the centre bore of aligning roll shaft left end, will
Cross section is that retainer ring (4) osculum of "Ji" type is enclosed within prestressed draw-bar from the right-hand member of aligning roll shaft forward, makes prestressing force draw
Bar is positioned at the center of aligning roll shaft；The right part of prestressed draw-bar inserts the cylinder of the hydraulic elongator being cased with hold-down ring (5)
Shape inner chamber of cylinder block, the right part projection of prestressed draw-bar screws into the female thread of inner chamber of cylinder block, is fixed on liquid by screw thread pair R
On pressure stretcher；Piston ring (9) is tightly against the end face of the right spindle nose of smoothing roll；Screw the trapezoidal nut (6) on hydraulic elongator
Hold-down ring (5) left end face is pressed in its right end face of combination collars.
The prestressing force retaining mechanism of a kind of section straightener the most according to claim 1 combination collars, it is characterised in that:
The through hole left end of described aligning roll shaft (1) is provided with the gross porosity thicker than through hole, the left end cylindrical protrusions position of prestressed draw-bar (2)
In gross porosity.
The prestressing force retaining mechanism of a kind of section straightener the most according to claim 1 and 2 combination collars, its feature exists
In: the right-hand member round bar of prestressed draw-bar (2) is processed into rectangular-shaped.
The prestressing force retaining mechanism of a kind of section straightener the most according to claim 1 and 2 combination collars, its feature exists
In: described hold-down ring (5) is steel workpiece.
The prestressing force retaining mechanism of a kind of section straightener the most according to claim 1 and 2 combination collars, its feature exists
In: described prestressed draw-bar (2) is made up of steel alloy, and periphery grinding forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620574123.0U CN205732372U (en) | 2016-06-12 | 2016-06-12 | A kind of prestressing force retaining mechanism of section straightener combination collars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620574123.0U CN205732372U (en) | 2016-06-12 | 2016-06-12 | A kind of prestressing force retaining mechanism of section straightener combination collars |
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| Publication Number | Publication Date |
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| CN205732372U true CN205732372U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620574123.0U Active CN205732372U (en) | 2016-06-12 | 2016-06-12 | A kind of prestressing force retaining mechanism of section straightener combination collars |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834253A (en) * | 2016-06-12 | 2016-08-10 | 马鞍山安麦创新技术有限公司 | Prestress locking mechanism of combined roll collar of section steel straightening machine |
-
2016
- 2016-06-12 CN CN201620574123.0U patent/CN205732372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834253A (en) * | 2016-06-12 | 2016-08-10 | 马鞍山安麦创新技术有限公司 | Prestress locking mechanism of combined roll collar of section steel straightening machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |