CN206738288U - A kind of oil cylinder piston transfinites automatic control holding meanss - Google Patents
A kind of oil cylinder piston transfinites automatic control holding meanss Download PDFInfo
- Publication number
- CN206738288U CN206738288U CN201720285708.5U CN201720285708U CN206738288U CN 206738288 U CN206738288 U CN 206738288U CN 201720285708 U CN201720285708 U CN 201720285708U CN 206738288 U CN206738288 U CN 206738288U
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- China
- Prior art keywords
- hole
- steel ball
- automatic control
- oil
- oil cylinder
- Prior art date
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- Expired - Fee Related
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- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of oil cylinder piston of the utility model transfinites automatic control holding meanss, and it includes cylinder cap and self-con-tained unit, is provided with oil inlet in cylinder cap, and it is interior and connect oil inlet that a self-con-tained unit is located at cylinder cap；Self-con-tained unit includes a mounting hole, mounting hole bottom is provided with a spring, one steel ball bracket is placed in spring top and top and sets off a steel ball, mounting hole screw top installs an inverted seal receptacle, seal receptacle axial centre position is provided with an oilhole run through, oilhole includes the first through hole for being located at upper end and the second through hole two parts for being located at lower end, second through-hole diameter is more than first through hole diameter, it is the R spheres to match with steel ball outer surface that first through hole diameter, which is less than steel ball size and the aperture of itself and the second through hole intersection, fixed distance sleeve pipe is movingly applied in oilhole and its top is bonded a piston, bottom contacts steel ball, so in a manner of oil cylinder itself active control, automatically controlled from oil-feed source, realize without drain path, it need not adjust, and precisely reliably reach control of transfiniting.
Description
Technical field
It the utility model is related to a kind of self-con-tained unit, and in particular to a kind of oil cylinder piston transfinites automatic control holding meanss.
Background technology
The piston shift motion of traditional thin cylinder, small stroke oil cylinder, hydraulic jack etc. is substantially all without machinery
Limitation, or take in high pressure end of travel perforate, by setting the form of overflow valve to limit the stroke that piston moves；It is this
Passive travel limit easily causes the damage of piston seal, and when overflow starts in a flash, piston, which returns, to be moved back or tremble
Dynamic phenomenon, overflow has also needed to return oil machine structure, and controls positional precision low.
The content of the invention
In order to solve the above technical problems, the purpose of this utility model be the provision of a kind of oil cylinder piston transfinite automatic control holding
Device, to solve the defects such as existing spoilage is high, control accuracy is low.
To achieve the above object, a kind of oil cylinder piston of the utility model transfinites automatic control holding meanss, and it includes a cylinder cap
With a self-con-tained unit, the cylinder cap is interior to be provided with an oil inlet, and a self-con-tained unit is located in the cylinder cap and connects the oil inlet；
The self-con-tained unit includes a mounting hole, and the mounting hole bottom is provided with a spring, and a steel ball bracket is placed in described
A steel ball is set off at spring top and top, and the mounting hole screw top installs an inverted seal receptacle, the seal receptacle axial direction
Center is provided with an oilhole run through, and the oilhole includes the first through hole for being located at upper end and the second through hole two for being located at lower end
Part, second through-hole diameter are more than the first through hole diameter, the first through hole diameter be less than the steel ball size and
The aperture of itself and the second through hole intersection is the R spheres to match with the steel ball outer surface, and fixed distance sleeve pipe is movingly
It is applied in the oilhole and its top is bonded a piston, bottom contacts the steel ball.
Preferably, one sealing ring of suit in the seal receptacle undercut.
Preferably, the thimble tube wall is also drilled with oil hole.
Preferably, it also retains adaptable gap between the steel ball and second through-hole wall.
Preferably, the R spheric curvatures in the aperture of the first through hole and the second through hole intersection with outside the steel ball
Surface curvature is identical.
Compared with prior art, its advantage is the utility model：For piston during movement, spring can be by steel
Ball and thimble pushing tow move with piston synchronous, and steel ball, which is moved in the second through hole, blocks oilhole, just forms one direction shut-off
Oil supply gallery, reach and automatically cut off fuel feeding limitation piston shape journey and surmount, so in a manner of oil cylinder itself active control, from entering
Oil sources head automatically controls, realize without drain path, need not adjustment, damage will not be sealed, and precisely reliably reach control of transfiniting
System.
Brief description of the drawings
Fig. 1 is that a kind of oil cylinder piston of the utility model transfinites the structural representations of automatic control holding meanss；
Fig. 2 is enlarged drawing at Fig. 1 A.
In figure：1st, seal receptacle 2, thimble 201, oil hole 3, sealing ring 4, steel ball 5, steel ball bracket 6, spring
7th, mounting hole 8, oilhole 801, first through hole 802, the second through hole 9, oil inlet 10, cylinder cap 11, piston.
Embodiment
To describe technology contents, construction feature, institute's reached purpose and effect of the utility model in detail, reality is hereby enumerated below
Apply example and coordinate accompanying drawing to be explained in detail.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of novel protected scope.
Refer to shown in Fig. 1, and with reference to shown in Fig. 2, the utility model provides a kind of automatic control of transfiniting of oil cylinder piston and keeps dress
Put, it includes a cylinder cap 10 and a self-con-tained unit, is provided with an oil inlet 9 in the cylinder cap 10, a self-con-tained unit is located at the cylinder
Lid 10 is interior and connects the oil inlet 9；
The self-con-tained unit includes a mounting hole 7, and the bottom of mounting hole 7 is provided with a spring 6, and a steel ball bracket 5 is placed in
A steel ball 4 is set off at the top of spring 6 and top, and the screw top of mounting hole 7 installs an inverted seal receptacle 1, described close
Envelope seat 1 axial centre position is provided with an oilhole 8 run through, and the oilhole 8 includes being located at the first through hole 801 of upper end and is located at down
The two parts of second through hole 802 at end, the diameter of the second through hole 802 are more than the diameter of first through hole 801, and described first is logical
The aperture that the diameter of hole 801 is less than the diameter of steel ball 4 and itself and the intersection of the second through hole 802 is and the appearance of steel ball 4
The R spheres that face matches, fixed distance sleeve pipe 2 is movingly applied in the oilhole 8 and its top is bonded a piston 11, and bottom connects
Touch the steel ball 4.
Preferably, one sealing ring 3 of suit in the undercut of seal receptacle 1.
Preferably, the tube wall of thimble 2 is also drilled with oil hole 201.
Preferably, it also retains adaptable gap between the steel ball 4 and the inwall of the second through hole 802.
Preferably, the R spheric curvatures in the first through hole 801 and the aperture of the intersection of the second through hole 802 with it is described
The outer surface curvature of steel ball 4 is identical.
Operation principle：When hydraulic oil enters oil cylinder, piston movement position by the spacing pipe tap on cylinder cap (or cylinder bottom portion)
Put, in piston moving process, spring moves steel ball and thimble pushing tow with piston synchronous, when steel ball is moved to and seal receptacle
In oilhole in, until with after the R sphere-contacts in first through hole and the aperture of the second through hole intersection, it is logical that steel ball has blocked second
Hole, one direction shut-off oil supply gallery is just formd, surmounting for fuel feeding limitation piston stroke is automatically cut off so as to reach.
In summary, the only preferred embodiment of the utility model, does not limit the scope of protection of the utility model with this, all
The equivalent changes and modifications made according to the utility model patent scope and description, it is all what the utility model patent covered
Within the scope of.
Claims (5)
- The automatic control holding meanss 1. a kind of oil cylinder piston transfinites, it includes a cylinder cap and a self-con-tained unit, it is characterised in that：The cylinder An oil inlet is provided with lid, a self-con-tained unit is located in the cylinder cap and connects the oil inlet；The self-con-tained unit includes a mounting hole, and the mounting hole bottom is provided with a spring, and a steel ball bracket is placed in the spring A steel ball is set off at top and top, and the mounting hole screw top installs an inverted seal receptacle, the seal receptacle axial centre Position is provided with an oilhole run through, and the oilhole includes the first through hole for being located at upper end and the second through hole two for being located at lower end Point, second through-hole diameter is more than the first through hole diameter, the first through hole diameter less than the steel ball size and its Aperture with the second through hole intersection is the R spheres to match with the steel ball outer surface, and fixed distance sleeve pipe movingly passes through It is through in the oilhole and its top is bonded a piston, bottom contacts the steel ball.
- The automatic control holding meanss 2. a kind of oil cylinder piston according to claim 1 transfinites, it is characterised in that：The seal receptacle bottom One sealing ring of suit in portion's groove.
- The automatic control holding meanss 3. a kind of oil cylinder piston according to claim 1 transfinites, it is characterised in that：The thimble Tube wall is also drilled with oil hole.
- The automatic control holding meanss 4. a kind of oil cylinder piston according to claim 1 transfinites, it is characterised in that：The steel ball and institute State and also retains adaptable gap between the second through-hole wall.
- The automatic control holding meanss 5. a kind of oil cylinder piston according to claim 1 transfinites, it is characterised in that：The first through hole It is identical with the steel ball outer surface curvature with the R spheric curvatures in the aperture of the second through hole intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720285708.5U CN206738288U (en) | 2017-03-23 | 2017-03-23 | A kind of oil cylinder piston transfinites automatic control holding meanss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720285708.5U CN206738288U (en) | 2017-03-23 | 2017-03-23 | A kind of oil cylinder piston transfinites automatic control holding meanss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738288U true CN206738288U (en) | 2017-12-12 |
Family
ID=60558035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720285708.5U Expired - Fee Related CN206738288U (en) | 2017-03-23 | 2017-03-23 | A kind of oil cylinder piston transfinites automatic control holding meanss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565829A (en) * | 2021-08-10 | 2021-10-29 | 大大科技(宁国)有限公司 | Large-tonnage flange type jacking hydraulic cylinder |
-
2017
- 2017-03-23 CN CN201720285708.5U patent/CN206738288U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565829A (en) * | 2021-08-10 | 2021-10-29 | 大大科技(宁国)有限公司 | Large-tonnage flange type jacking hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20190323 |