CN203404360U - Dustproof cover applied to piston rod - Google Patents
Dustproof cover applied to piston rod Download PDFInfo
- Publication number
- CN203404360U CN203404360U CN201320377953.0U CN201320377953U CN203404360U CN 203404360 U CN203404360 U CN 203404360U CN 201320377953 U CN201320377953 U CN 201320377953U CN 203404360 U CN203404360 U CN 203404360U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- dust
- proof cover
- dustproof cover
- ring
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a dustproof cover applied to a piston rod. The dustproof cover comprises a folded cover body, an inner metal ring and an outer metal ring, wherein the inner metal ring and the outer metal ring are connected with the cover body. The dustproof cover is spacedly sheathed on the piston rod through a support member, and is in radial static connection with the piston rod through a connecting member. According to the dustproof cover applied to the piston rod, which is provided by the utility model, the dustproof cover is connected with a bearing of the piston rod, thus the influence of the spinning property of the piston rod on the dustproof cover is reduced; the problem that the piston rod is corroded, which is caused due to the fact that the dustproof cover is torn, is avoided; the service lives of the dustproof cover and a side pressing oil cylinder are greatly prolonged; the consumption cost of spare parts is reduced; faults are reduced; the support member is added on the structure of the dustproof cover, thus the problem of wear, which is caused by the fact that the dustproof cover contacts the piston rod, is avoided; and the wear rate of the dustproof cover is greatly reduced.
Description
Technical field
The utility model belongs to steel rolling automation field, is specifically related to a kind of dust-proof cover for piston rod.
Background technique
In the production technology of hot strip rolling, it is one of main target improving end product quality for a long time that the width of hot-strip is controlled always, good width accuracy can reduce the trimming loss with steel, improve the productivity of product, width difference reduces 1mm, productivity just can improve 1%, yet due to a variety of causes, often there is fluctuation in the wide meeting of plate, for the wide this fluctuation of compensating plate, require automation control system can carry out dynamic adjustments for various disturbances, produced thus automatic width control technique.From the equipment of current hot rolling line, configure, the width of hot-strip product is controlled and mainly in roughing region, is realized, only has accurate setting roughing width model, could effectively control the exit width of finish rolling, the task that width is automatically controlled is exactly stiffness coefficient according to frame, slab developed width etc., for edger roll system-computed goes out side pressure setting value, to eliminate because temperature change causes rolling load, change the impact that causes mill roll-gap value to change, maintain constant edger roll loading roll gap value, to obtain the slab of constant-breadth.
Edger roll is that each hot rolling unit is controlled necessity equipment with steel finished width, and its setting type is in horizontal roller above or below.The edger roll that the horizontal roller of arranging up and down and left and right are arranged has formed the universal rolling mill of hot rolling unit.The aperture variation of edger roll is completed by the action of upper and lower two side pressure oil cylinders and middle return cylinder respectively, when side pressure oil cylinder moves to rolling centerline in edger roll memorial archway, the two edger roll apertures that promotion is symmetrically arranged diminish, middle return cylinder is opened direction operation to aperture all the time, guarantees gapless between side pressure oil cylinder and vertical roll bearing seat; When side pressure oil cylinder moves to rolling centerline opposite direction, middle return cylinder hauls the moving direction action that edger roll is the same with side pressure oil cylinder, and the two edger roll apertures that are symmetrically arranged become large.Piston rod in side pressure oil cylinder is easily subject to the impact of the environment such as high temperature, steam, dust, greasy dirt at work, can there is the defects such as corrosion, pit in piston rod pole face, defective piston rod easily will seal in being recovered to cylinder body time suitable bad, cause the faults such as the leakage of oil of side pressure oil cylinder, upper and lower oil cylinder be asynchronous, finally affected the precision that automatic width is controlled.In order to prevent the impaired ，Ge of side pressure cylinder piston rod pole face factory, on side pressure oil cylinder, dust-proof cover has been installed.
Existing dust-proof cover is that one end is directly fastened on oil cylinder body by bolt, and the other end connects with piston rod by pressing plate, and pressing plate is with being also bolt connecting mode between piston rod.
The problem that existing dust-proof cover exists is as follows: because dust-proof cover is heavier because of dead weight, the iron scale having produced when appearance has been piled up steel rolling simultaneously, causes the internal surface of dust-proof cover to contact all the time with cylinder piston rod.In the operation of rolling, side pressure oil cylinder is under servo valve control in the working state in dynamic adjustment, under this state, and the reciprocating action in short stroke of side pressure oil cylinder, in course of action, piston rod rubs repeatedly with dust-proof cover, causes dust-proof cover damaged at short notice.And, the design of side pressure piston rod lacks outside and inner guide mechanism, therefore there is the characteristic of spin in piston rod in action engineering, under load effect, piston rod can produce vertically the phenomenon of rotation in flexible, in the process of steel rolling, the external loading of side pressure oil cylinder is very complicated and cannot predict, therefore cause the spin direction of piston rod to exist uncertain, if rotating accumulation vertically, piston rod surpasses 180 degree, can cause dust-proof cover to tear, and then in steam intrusion dust-proof cover, cause cylinder piston rod corrosion.
Model utility content
For overcoming the above problems, the utility model provides a kind of dust-proof cover for piston rod, and its technological scheme is as follows:
A kind of dust-proof cover for piston rod, comprise the cover body of rugosity and the inner ring metal ring being connected with cover body and outer ring metal ring, it is characterized in that: described dust-proof cover by a supporting member spacing be linked on piston rod, and by a connector element, realize radially static being connected with piston rod.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: the support ring of described supporting member for being fixedly connected with inner ring metal ring.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: described connector element is bearing, and the inner ring of described bearing is fixedly connected with piston rod, and the outer ring of described bearing is fixedly connected with dust-proof cover.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: described vertical roller side is pressed the dust-proof cover of hydraulic cylinder piston rod, also comprise the spring that connects oil cylinder body and outer ring, end metal ring away from oil cylinder body one end.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: at described piston rod head, offer groove, the inner ring of described bearing is arranged in groove by back-up ring and pressing plate.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: described support ring height is inner ring metal ring and outer ring metal ring height difference 1～1.8 times.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: at least two metal rings of described metal ring for being equally spaced vertically.
According to a kind of dust-proof cover for piston rod of the present utility model, it is characterized in that: described metal ring is inverted T shape.
A kind of dust-proof cover for piston rod of the present utility model, can avoid dust-proof cover to contact the wear problem causing with piston rod well, reduces widely the wearing and tearing probability of dust-proof cover; Can reduce the impact of piston rod spin properties on dust-proof cover, stop to tear because of dust-proof cover the generation that causes piston rod to be corroded, extend largely the working life of dust-proof cover and side pressure oil cylinder, reduce the consuming cost of spare part, reduce the generation of fault.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of dust-proof cover for piston rod of the present utility model,
Fig. 2 is the supporting ring structure schematic diagram of a kind of dust-proof cover for piston rod of the present utility model.
In figure, 1 is support ring; 2 is bearing; 3 is spring.
Embodiment
Below, according to specification drawings and specific embodiments, a kind of dust-proof cover for piston rod of the present utility model is described further.
A kind of dust-proof cover for piston rod as shown in Figure 1, first, at piston rod head, offer a groove so that bearing (2) to be installed, bearing by back-up ring and pressing plate location and installation in groove, dust-proof cover one end is connected with oil cylinder body by bolt, the other end is fixedly connected with bearing outer ring, and when this kind of Placement guaranteed that dust-proof cover is not subject to piston rod flexible, rotation affects.In dust-proof cover, be also provided with support ring (1), preferably, this support ring is the support ring being equally spaced; Be preferably two support rings that are equally spaced, as shown in Figure 2; Preferably, for being the support ring of inverted T shape, the support ring of described inverted T shape design with between piston rod for face contact, reduce friction loss, wear-resisting property is good, surface of contact is large simultaneously, difficult toppling in the process of piston rod axial float; Preferably, the height of support ring is 1～1.8 times of dust-proof cover foldable layer height; Preferably, the height of support ring is 1.5 times of dust-proof cover foldable layer height.It is fulcrum that described support ring be take dust-proof cover outer ring metal ring, chooses the material that low hardness wear resistance is good, and when oil cylinder is worked, dust-proof cover can not touch piston rod because deadweight reason hangs down like this.
A kind of dust-proof cover for piston rod of the present utility model, can avoid dust-proof cover to contact the wear problem causing with piston rod well, reduces widely the wearing and tearing probability of dust-proof cover; Can reduce the impact of piston rod spin properties on dust-proof cover, stop to tear because of dust-proof cover the generation that causes piston rod to be corroded, extend largely the working life of dust-proof cover and side pressure oil cylinder, reduce the consuming cost of spare part, reduce the generation of fault.
Claims (8)
1. the dust-proof cover for piston rod, comprise the cover body of rugosity and the inner ring metal ring being connected with cover body and outer ring metal ring, it is characterized in that: described dust-proof cover by a supporting member spacing be linked on piston rod, and by a connector element, realize radially static being connected with piston rod.
2. a kind of dust-proof cover for piston rod according to claim 1, is characterized in that: the support ring of described supporting member for being fixedly connected with inner ring metal ring.
3. a kind of dust-proof cover for piston rod according to claim 1, is characterized in that: described connector element is bearing, and the inner ring of described bearing is fixedly connected with piston rod, and the outer ring of described bearing is fixedly connected with dust-proof cover.
4. a kind of dust-proof cover for piston rod according to claim 1, is characterized in that: described dust-proof cover, also comprises and connect oil cylinder body and spring away from outer ring, end, oil cylinder body one end metal ring.
5. a kind of dust-proof cover for piston rod according to claim 3, is characterized in that: at described piston rod head, offer groove, the inner ring of described bearing is arranged in groove by back-up ring and pressing plate.
6. a kind of dust-proof cover for piston rod according to claim 2, is characterized in that: described support ring height is inner ring metal ring and outer ring metal ring height difference 1～1.8 times.
7. a kind of dust-proof cover for piston rod according to claim 2, is characterized in that: at least two metal rings of described metal ring for being equally spaced vertically.
8. a kind of dust-proof cover for piston rod according to claim 2, is characterized in that: described metal ring is inverted T shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320377953.0U CN203404360U (en) | 2013-06-27 | 2013-06-27 | Dustproof cover applied to piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320377953.0U CN203404360U (en) | 2013-06-27 | 2013-06-27 | Dustproof cover applied to piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404360U true CN203404360U (en) | 2014-01-22 |
Family
ID=49940297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320377953.0U Expired - Lifetime CN203404360U (en) | 2013-06-27 | 2013-06-27 | Dustproof cover applied to piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404360U (en) |
-
2013
- 2013-06-27 CN CN201320377953.0U patent/CN203404360U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204912282U (en) | Rolling mill memorial archway clearance adjustment compensation arrangement | |
| CN203404360U (en) | Dustproof cover applied to piston rod | |
| CN203578353U (en) | Short-stress-path type all-purpose rolling mill | |
| CN204052446U (en) | A kind of clearance eliminating mechanism of metal pipe bar straightener down screw rod | |
| CN204523778U (en) | A kind of short stress rolling mill pull bar labyrinth gland | |
| CN102108992B (en) | Servo valve defect judgment and maintenance method | |
| CN210623251U (en) | Self-adaptive anti-lateral bending abrasion oil cylinder structure | |
| CN109373050B (en) | Corrosion-resistant high-performance flow controller | |
| CN103157666A (en) | Plate strip rolling mill roller adjusting device | |
| CN100402166C (en) | Tempering machine | |
| CN202290757U (en) | Working roll traversing device for strip finishing mill | |
| CN203157196U (en) | Stand column guide sleeve structure with wear-resisting materials capable of being rapidly replaced | |
| CN106122163A (en) | A kind of Novel hydraulic cylinder | |
| CN202883550U (en) | Improved hydraulic cylinder locking mechanism | |
| CN216199475U (en) | Oil cylinder sealing device | |
| CN211398110U (en) | Double-sealing bending roller hydraulic cylinder | |
| CN105458037A (en) | Internal wear clearance measuring and calculating method of winding drum of winding machine | |
| CN210023257U (en) | Clearance eliminating device for four-high mill | |
| CN203356209U (en) | Cylinder end pressing cover of precision rolling bending cylinder | |
| CN203817052U (en) | Rolling mill bearing device | |
| CN2882831Y (en) | a leveling machine | |
| CN209623673U (en) | A kind of seamless flatness measurement roll | |
| CN2231145Y (en) | Roll mechanical balance device for mill | |
| CN110259758B (en) | Self-adaptive lateral bending wear-resistant oil cylinder structure | |
| CN112058914A (en) | A prestressed short stress rolling mill with automatic roll gap adjustment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |