CN204852336U - Prevent AWC hydro -cylinder dust ring device that turns up - Google Patents
Prevent AWC hydro -cylinder dust ring device that turns up Download PDFInfo
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- CN204852336U CN204852336U CN201520454725.8U CN201520454725U CN204852336U CN 204852336 U CN204852336 U CN 204852336U CN 201520454725 U CN201520454725 U CN 201520454725U CN 204852336 U CN204852336 U CN 204852336U
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Abstract
The utility model provides a prevent AWC hydro -cylinder dust ring device that turns up. The utility model discloses a prevent AWC hydro -cylinder dust ring device that turns up, unload power device and dust ring pressure cover including the top, the dust ring press the cover to lean on one side design boss and hydro -cylinder end cover groove phase gomphosis installation of hydro -cylinder end cover, the top unload power the device include ball seat, top, elastic ring, flange cover, the ball seat install the free end at the piston rod, the top through the installation that cooperatees of the concave spherical surface on the convex spherical on it and the ball seat, the elastic ring with top interference fit suit outside in the top, flange cover with elastic ring transition fit suit in the outside of elastic ring. The utility model discloses can stop the hydro -cylinder dust ring phenomenon of turning on one's side, extension hydro -cylinder life.
Description
technical field:
The utility model relates to one and prevents AWC oil cylinder dust ring turning-up device, belongs to cylinder seal technical field.
background technique:
On modern plate mill production line, vertical miller is indispensable some, it is mainly used to be rolled the side of slab, make the side of slab after rolling, both can change strip width, and can prevent from again rolling panel edges and produce cydariform and raw edges, can also subsidiary level biting, thus obtain the sheet material of even width, neat in edge, also there is comb pine and the effect of removing the iron scale that steel slab surface generates simultaneously.In order to roll out the sheet material of various width specifications, by regulating the size between two edger rolls, i.e. the opening degree of edger roll, just can realize; Therefore, at the symmetrical installation side press mechanism in opposing one end of two edger rolls, lateral pressing structure of shoe is made up of side-pressing device, balancing cylinder, and side-pressing device forms primarily of four side pressure AWC oil cylinders, AWC is the english abbreviation (AutomaticWidthControl) of automatic width control, and its Main Function is in rolling process, and the thrust that oil cylinder produces vertically acts on work-roll chock, breaker roll is accurately located, and controls the rolling width of sheet material.Dust ring is one of most critical part of oil cylinder, Main Function is that removing reciprocating piston bar is exposed at the dirts such as dust, sand-lime, rainwater and frost accompanying on cylinder outer surface, prevent external dust, rainwater enters sealing mechanism inside, itself and piston rod take interference fit.In actual use, edger roll stings steel in an instant, oil cylinder can be subject to the radial force (cylinder piston rod can micro-ly be retracted) of larger axial force and rolling direction simultaneously, now Roll Gap Control System can from dynamic response, pressure is improved instantaneously at the rodless cavity of oil cylinder, balance axial force, keep roll gap constant (cylinder piston rod trace stretches out), and the radial force of rolling direction can make cylinder piston rod produce circular runout, add the micro-reciprocating action of upper piston rod moment and the friction factor higher (both are interference fit) between dust ring and piston rod, oil cylinder dust ring is made to produce rollover phenomenon in circular runout direction, the protective barrier of oil cylinder will lose efficacy, external dust, the foreign material such as oxidation iron plate will enter oil cylinder inside, piston rod surface chromium coating and primary seal are destroyed by foreign material, cause oil cylinder leakage of oil, time serious, foreign material also can enter whole hydraulic system, make system oil contamination, operating valve and pump jam etc.
Model utility content
The purpose of this utility model provides one to prevent AWC oil cylinder dust ring turning-up device for above-mentioned Problems existing, can stop oil cylinder dust ring rollover phenomenon, extend oil cylinder working life.
Above-mentioned object is achieved through the following technical solutions:
Prevent AWC oil cylinder dust ring turning-up device, comprise top and unload power apparatus and dust ring gland, described dust ring gland by cylinder cover while design a boss and cylinder cover groove tabling is installed, described top is unloaded power apparatus and is comprised ball seat, top, elastic ring, flange sleeve, described ball seat is arranged on the free end of piston rod, to be matched with the concave spherical surface on ball seat by the convex spherical on it and install in described top, described elastic ring and described top interference fit are sleeved on and come directly towards outside, described flange sleeve and described elastic ring transition fit are sleeved on the outside of elastic ring.
Described prevents AWC oil cylinder dust ring turning-up device, and adopt Spielpassung between the inner ring of described dust ring gland and piston rod, gap control is at 0.1mm.
Described prevents AWC oil cylinder dust ring turning-up device, and described top is stepped shaft, and head is plane, and bottom is described convex spherical, and there is a through hole at center in order to carry lubricant oil to lubricate plane and sphere.
Described prevents AWC oil cylinder dust ring turning-up device, and described ball seat is the concave spherical surface that can match with top convex spherical, and lateral layout has a filler opening to be connected with central through bore, and sphere is evenly equipped with oil groove to store and conveying lubricant oil.
Beneficial effect:
The utility model is top meeting slight inclination when oil cylinder is subject to radial force, and the concave spherical surface of top convex spherical and ball seat can produce relative sliding (simple motion so as calculated can eliminate the moment radial force of about about seventy percent) instantaneously; Elastic ring can make top Rapid reset keep level, and the rolling load making oil cylinder and edger roll sting steel is cancelled out each other.Dust ring gland can make dust ring axially locating, and the lubricant oil that annular oil groove stores reduces the friction factor between dust ring and piston rod, dust ring is come and gone in action fast at piston rod trace and no longer turns up.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is top structure simplified schematic diagram.
Fig. 3 is elastic ring structural representation sketch.
Fig. 4 is flange sleeve structural representation sketch.
Fig. 5 is ball socket structure simplified schematic diagram.
Fig. 6 is gland structural representation sketch.
1-dust ring in figure; 2-gland; 3-end cap; 4-piston rod; 5-ball seat; 6-comes directly towards; 7-elastic ring; 8-flange sleeve.
Embodiment
With reference to Fig. 1, one prevents AWC oil cylinder dust ring turning-up device, unloads power apparatus and dust ring gland two-part form by top.Sting steel moment first to decompose radial force by unloading power apparatus, the radial force that piston rod is subject to significantly reduces; Dust ring gland is except axially locating dust ring completely and preventing rollover, also play leading role, the residue radial force that piston rod is subject to almost is eliminated completely by leading role, the lubricant oil be stored between gland and piston rod can reduce the friction factor between piston rod and dust ring, eliminates piston rod moment fast trace and comes and goes the impact of action on dust ring.
Described unload power apparatus by coming directly towards, elastic ring, flange sleeve and ball seat form.
Described top is stepped shaft, and head is plane, directly contacts during work with vertical roll bearing seat, and bottom is convex spherical, and head column external diameter is φ A, and bottom column external diameter is φ B, and there is a through hole at center in order to carry lubricant oil to lubricate plane and sphere.The 60WCrV7 that top material selection impact resistance is higher, hardness can reach more than 54HRC.
Described elastic ring is similar to stepped shaft tubular with top, and head column internal diameter is more smaller than top A, both interference fit; Bottom column internal diameter is larger than top B, both Spielpassung.
Described flange sleeve inner hole section be stepped shaft to install elastic ring, both heads and bottom column all select transition fit.Flange base is also evenly equipped with several cylindrical holes, in order to install connecting bolt, is designed with flange, locates completely after making installation in position near the side of dust ring.
Described ball seat is while be the concave spherical surface that can match with top convex spherical, and lateral layout has a filler opening to be connected with central through bore, and sphere is evenly equipped with oil groove to store and conveying lubricant oil.Ball seat material selection 42CrMo also carries out quenching with Subsequent tempering, and sphere requires that wear-resisting need carry out Nitrizing Treatment and improve surface hardness.
Described dust ring gland is a wear-resisting tin bronze cover, and inner ring is designed with continuous print annular oil groove, designs a boss and cylinder cover groove tabling by cylinder cover, makes copper sheathing can make to locate completely after installation in position.Gland inner ring after in place on one side flange can, by dust ring axially locating, prevent dust ring from axially producing play.Select Spielpassung between the inner ring of gland and piston rod, gap control, at about 0.1mm, plays the effect of guide piston bar.
Stop dust ring rollover phenomenon by the enforcement of above technological scheme, substantially prolongs the working life of AWC oil cylinder, whole oil contamination in hydraulic system, operating valve and pump jam phenomenon are significantly reduced.
Claims (4)
1. one kind prevents AWC oil cylinder dust ring turning-up device, it is characterized in that: comprise top and unload power apparatus and dust ring gland, described dust ring gland by cylinder cover while design a boss and cylinder cover groove tabling is installed, described top is unloaded power apparatus and is comprised ball seat, top, elastic ring, flange sleeve, described ball seat is arranged on the free end of piston rod, to be matched with the concave spherical surface on ball seat by the convex spherical on it and install in described top, described elastic ring and described top interference fit are sleeved on and come directly towards outside, described flange sleeve and described elastic ring transition fit are sleeved on the outside of elastic ring.
2. according to claim 1ly prevent AWC oil cylinder dust ring turning-up device, it is characterized in that: adopt Spielpassung between the inner ring of described dust ring gland and piston rod, gap control is at 0.1mm.
3. according to claim 1 and 2ly prevent AWC oil cylinder dust ring turning-up device, it is characterized in that: described top is stepped shaft, head is plane, and bottom is described convex spherical, and there is a through hole at center in order to carry lubricant oil to lubricate plane and sphere.
4. according to claim 1 and 2ly prevent AWC oil cylinder dust ring turning-up device, it is characterized in that: described ball seat is the concave spherical surface that can match with top convex spherical, lateral layout has a filler opening to be connected with central through bore, and sphere is evenly equipped with oil groove to store and conveying lubricant oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454725.8U CN204852336U (en) | 2015-06-29 | 2015-06-29 | Prevent AWC hydro -cylinder dust ring device that turns up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454725.8U CN204852336U (en) | 2015-06-29 | 2015-06-29 | Prevent AWC hydro -cylinder dust ring device that turns up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852336U true CN204852336U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520454725.8U Active CN204852336U (en) | 2015-06-29 | 2015-06-29 | Prevent AWC hydro -cylinder dust ring device that turns up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852336U (en) |
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2015
- 2015-06-29 CN CN201520454725.8U patent/CN204852336U/en active Active
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| GR01 | Patent grant |