CN2637796Y - Hydraulic double-motion stretcher top oil cylinder - Google Patents
Hydraulic double-motion stretcher top oil cylinder Download PDFInfo
- Publication number
- CN2637796Y CN2637796Y CN 03278039 CN03278039U CN2637796Y CN 2637796 Y CN2637796 Y CN 2637796Y CN 03278039 CN03278039 CN 03278039 CN 03278039 U CN03278039 U CN 03278039U CN 2637796 Y CN2637796 Y CN 2637796Y
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- CN
- China
- Prior art keywords
- cylinder
- piston rod
- hydraulic double
- cylinder body
- nut
- 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
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Abstract
The utility model relates to an oil adding cylinder of a hydraulic double-motion stretcher, which belongs to the technical field of calendering equipment. Oil transportation holes are respectively arranged at the upper and the lower ends of the cylinder body of the oil adding cylinder, and the middle part is provided with a piston of which one end is fixedly connected with a cylinder rod that extends out of the lower end of the cylinder body and is in sealing engagement with the cylinder body. The improvement is that the protrusion end of the cylinder rod is provided with hollowed counter bores in which feather keys are fixed and a center screw with guiding grooves are inserted, screw threads are arranged and lock nuts with locking edges are installed on the excircle of a hole opening of cylinder rod, a regulating nut is screwed on the center screw, and the regulating nut is axially limited by the locking edges of the locking nut. When the lock nuts are loosened and the regulating nut is screwed, the center screw carries out concertina movement along a straight line as required so as to achieve the purpose of adjusting the structure accurately. The oil adding cylinder of the utility model has a wide regulating range, the axial dimension is very compact, and the height of the entire mahine can be greatly reduced after installation.
Description
Technical field
The utility model relates to a kind of hydraulic jack, and the upper cylinder of the moving stretcher of especially a kind of Hydraulic Double belongs to the rolling equipment technical field.
Background technique
Upper cylinder is one of main working parts of the moving stretcher of Hydraulic Double, is installed in the top of frame.The cylinder body upper/lower terminal of the moving stretcher upper cylinder of existing Hydraulic Double is respectively equipped with the oil transportation hole, and piston is equipped with at the middle part, and an end and the piston rod of described piston are connected, and described piston rod stretches out from the cylinder body lower end, is sealed and matched with cylinder body.Under the control of upper and lower oilhole at fuel delivery valve of cylinder body, in the time of respectively and oil-feed, the time and when fuel-displaced, piston will be under the effect of pressure oil, the workpiece calendering required machinery action that presses down that stretches is finished in back and forth lifting.
Understand according to the claimant, the moving stretcher upper cylinder piston rod of existing Hydraulic Double is solid construction, and the lower end is connected with the upper die tooling of drawing die by extension bar.When upper cylinder is in the work initial position, for making between patrix and the flanging platen distance suitable, the length that need select and regulate extension bar for use.This regulation structure has not only increased machine tool accessory quantity, and dismounting is time-consuming, is difficult to accurate adjustment, and makes that upper cylinder short transverse structure is not compact, thereby has strengthened the height dimension of complete machine.
The model utility content
The purpose of this utility model is: the technological deficiency at the moving stretcher upper cylinder of existing Hydraulic Double exists, by architecture advances, a kind of compact structure, easy to adjust is proposed, and the Hydraulic Double that can accurately adjust is moved the stretcher upper cylinder.
In order to reach above purpose, the cylinder body upper/lower terminal of the moving stretcher upper cylinder of Hydraulic Double of the present utility model is respectively equipped with the oil transportation hole, and piston is equipped with at the middle part, and an end and the piston rod of described piston are connected, described piston rod stretches out from the cylinder body lower end, is sealed and matched with cylinder body.Its improvements are: described piston rod external part is shaped on counterbore, is hollow shape, hole internal fixation feather key, and plug-in mounting is shaped on the center bolt of guiding groove.Described piston rod aperture cylindrical is shaped on screw thread, and the locking nut of pilled-in selvedge with lock is housed.Be combined with adjusting nut on the described center bolt, described adjusting nut axially by the locking margin position of described locking nut.
Like this, unclamp locking nut, when screwing adjusting nut, can make center bolt, change overhang, thereby reach the purpose of accurate regulation structure, make between patrix and the flanging platen apart from suitable from piston rod along straight line fore and aft motion as required.After mixing up, tighten locking nut, get final product the lock adjustment nut, make center bolt remain on desired location.Because center bolt is inserted in the hollow piston rod, therefore whole upper cylinder has bigger regulation range, and axial dimension is very compact, can reduce the height of complete machine after the installation greatly.This shows that the utility model had both guaranteed easy to adjust with box type piston bar structure cleverly, make that again the bulk of upper cylinder is rationally utilized, thereby contribute for compact, the precise treatment of complete machine.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
The structure of the moving stretcher upper cylinder of the Hydraulic Double of present embodiment mainly is made up of cylinder body 15, cylinder cover 9, guiding end cap 24, piston 10, piston rod 12 and center bolt 18 as shown in Figure 1.
The upper/lower terminal of cylinder body 15 is attached thereto and is integral by the end cap 24 that will lead with stud bolt 4, plain washer 2, spring washer 3 and nut 1, cylinder cover 8 respectively.Be shaped on the oil transportation hole on the cylinder cover 9, cylinder body 15 is shaped on the following oil transportation hole that oil connection 22 is installed.Piston 10 is equipped with at cylinder body 15 middle parts.Guide ring 6 and hole are embedded on the piston 10 with combination seal 19, and O-ring seals 5 is embedded in the axle head that piston rod 12 is connected with piston 10, by snap ring 8 and circlip for shaft 7 piston 10 are connected on the piston rod 12.Piston rod 12 stretches out from the guiding end cap 24 of cylinder body 15 lower ends, guiding inlaying on the end cap 24 dust-proof seal ring 25, axle with seal ring 23, axle with combination seal 21 and guide ring 20, thereby form and being sealed and matched of piston rod 12 cylindricals.
Be shaped on counterbore on the external part of piston rod 12, be hollow shape, pass through guide sleeve 30 fixed guide keys 26 in the hole.The center bolt 18 that is shaped on guiding groove is inserted in the counterbore along feather key 26, and center bolt 18 terminations are fixed with guide collar 14 by circlip for shaft 13.This structure can guarantee that center bolt 18 moves along straight line all the time, helps to realize accurate adjusting when regulating.
Piston rod 12 aperture cylindricals are shaped on screw thread, and the locking nut 31 of pilled-in selvedge with lock is housed.Adjusting nut 32 cylindricals that screw on center bolt 18 are the shoulder shape, and fastening screw nut 33 also is equipped with by the locking limit clamping of the end face of piston rod 12 and locking nut 31 on the center bolt 18 of adjusting nut 32 outer ends in its shaft shoulder place, and is more reliable when locking like this.
In the moving stretcher upper cylinder work of the Hydraulic Double of present embodiment, when needs adjust between the upper die tooling of different stretch part and the flanging platen apart from the time, as long as unscrew locking nut 31 and fastening screw nut 33 earlier, rotate adjusting nut 32 again, can make center bolt 18 along piston rod 12 axial elongations or shorten to and want required length.After mixing up, use two locking nuts (31,33) again, can guarantee that center bolt 18 stablizes constant with respect to the axial position of piston rod 12 adjusting nut 32 locking.Obvious above-mentioned adjusting method is than with the method for changing extension bar, can either reduce machine tool accessory, adjust conveniently, can accomplish again steplessly accurately to regulate.Be not difficult to find out simultaneously, owing to be provided with the flexible center bolt of box type piston bar relatively, so the whole cylinder structure is very compact, saves the space, thereby lays a good foundation for reducing the complete machine height.
Claims (6)
1. a Hydraulic Double is moved the stretcher upper cylinder, the cylinder body upper/lower terminal is respectively equipped with the oil transportation hole, piston is equipped with at the middle part, one end and the piston rod of described piston are connected, and described piston rod stretches out from the cylinder body lower end, are sealed and matched with cylinder body, it is characterized in that: described piston rod external part is shaped on counterbore, be hollow shape, hole internal fixation feather key, plug-in mounting is shaped on the center bolt of guiding groove; Described piston rod aperture cylindrical is shaped on screw thread, and the locking nut of pilled-in selvedge with lock is housed; Be combined with adjusting nut on the described center bolt, described adjusting nut axially by the locking margin position of described locking nut.
2. according to the moving stretcher upper cylinder of the described Hydraulic Double of claim 1, it is characterized in that: be shaped on the oil transportation hole on the described cylinder cover, described cylinder body is shaped on the following oil transportation hole that oil connection is installed.
3. according to claim 1 or the moving stretcher upper cylinder of 2 described Hydraulic Double, it is characterized in that: inlay guide ring and hole combination seal on the described piston, piston and piston rod are connected by snap ring and circlip for shaft.
4. according to the moving stretcher upper cylinder of the described Hydraulic Double of claim 3, it is characterized in that: described guide end cover inlay dust-proof seal ring, axle with seal ring, axle with combination seal and guide ring, form and being sealed and matched of piston rod cylindrical.
5. according to the moving stretcher upper cylinder of the described Hydraulic Double of claim 4, it is characterized in that: described adjusting nut cylindrical is the shoulder shape, and its shaft shoulder place is by the locking limit clamping of the end face of described piston rod and locking nut.
6. according to the moving stretcher upper cylinder of the described Hydraulic Double of claim 5, it is characterized in that: on the center bolt of described adjusting nut outer end fastening screw nut is housed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03278039 CN2637796Y (en) | 2003-08-26 | 2003-08-26 | Hydraulic double-motion stretcher top oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03278039 CN2637796Y (en) | 2003-08-26 | 2003-08-26 | Hydraulic double-motion stretcher top oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637796Y true CN2637796Y (en) | 2004-09-01 |
Family
ID=34303120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03278039 Expired - Lifetime CN2637796Y (en) | 2003-08-26 | 2003-08-26 | Hydraulic double-motion stretcher top oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637796Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506272A (en) * | 2018-05-31 | 2018-09-07 | 广濑精密机械（太仓）有限公司 | One kind being followed by formula and clamps stroke adjustable hollow angling cylinder |
| CN113251026A (en) * | 2021-06-03 | 2021-08-13 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with same |
-
2003
- 2003-08-26 CN CN 03278039 patent/CN2637796Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506272A (en) * | 2018-05-31 | 2018-09-07 | 广濑精密机械（太仓）有限公司 | One kind being followed by formula and clamps stroke adjustable hollow angling cylinder |
| CN113251026A (en) * | 2021-06-03 | 2021-08-13 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with same |
| CN113251026B (en) * | 2021-06-03 | 2024-02-06 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with piston rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060329 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |