CN104044296A - Buffer oil return device with improved structure - Google Patents
Buffer oil return device with improved structure Download PDFInfo
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- CN104044296A CN104044296A CN201310080962.8A CN201310080962A CN104044296A CN 104044296 A CN104044296 A CN 104044296A CN 201310080962 A CN201310080962 A CN 201310080962A CN 104044296 A CN104044296 A CN 104044296A
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- steel bead
- groove
- bead groove
- steel
- oil return
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Abstract
The invention discloses a buffer oil return device with an improved structure. A piston can be axially inserted in an oil cavity in a sliding and sealing mode; a spring groove and an oil return port are formed in the bottom of the oil cavity; a spring is arranged in the spring groove, and one end, facing the oil cavity, of the spring extends out of the spring groove; the oil return port is communicated with one end, with a large diameter, of a steel bead groove, wherein the cross section of the steel bead groove is T-shaped; one end, with a small diameter, of the steel bead groove is communicated with an oil return pipeline; a steel bead is contained in the end, with the large diameter, of the steel bead groove, and the diameter of the steel bead is larger than the diameter of the end, with the small diameter, of the steel bead groove. The buffer oil return device with the improved structure is further provided with a stopping device; the stopping device enables the steel bead to be located in the steel bead groove all the time. Due to the arrangement of the stopping device, the moving range of the steel bead is limited in the steel bead groove so that the steel bead can be absorbed for enough distance, oil can be absorbed smoothly, the steel bead cannot be absorbed into the interior of the oil cavity of a buffer, the steel bead can return to the bottom of the steel bead groove smoothly and prepare for the next motion, and the buffer oil return device with the improved structure is simple in structure and is capable of guaranteeing the smooth work of the buffer and the machining safety.
Description
Technical field
The present invention relates to a kind of hydraulic press buffer, particularly a kind of buffer oil return apparatus of architecture advances.
Background technology
The port that the steel bead groove of buffer is communicated with oil pocket is at present without any restraint device, steel ball departs from sometimes steel bead groove and enters in oil pocket under the effect of oil pocket pull of vacuum, in the time of the piston action of oil pocket next time, it moves to certain position and is just blocked and cannot continue motion by steel ball, steel ball cannot enter in steel bead groove return line is sealed simultaneously, cause pistons work to lose efficacy, cannot play cushioning effect.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of buffer oil return apparatus of architecture advances, the buffer oil return apparatus of this architecture advances can effectively avoid steel ball to depart from steel bead groove, and guarantee buffer is worked smoothly.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of buffer oil return apparatus of architecture advances, comprise oil pocket, piston, oil returning tube, steel bead groove, steel ball and spring, described piston can slide axially to seal and be inserted in oil pocket, oil pocket bottom is provided with a spring groove and an oil return opening, in spring groove, be provided with a spring, described spring stretches out spring groove towards one end of oil pocket, oil return opening steel bead groove diameter large one end T-shaped with cross section is communicated with, one end that steel bead groove diameter is little is communicated with oil returning tube, steel ball is placed in one end that steel bead groove diameter is large, and diameter of the steel ball is greater than one end diameter that steel bead groove diameter is little, also be provided with a stop device, described stop device can make steel ball all the time in steel bead groove.
As a further improvement on the present invention, described stop device is the block of being located at the port, one end that steel bead groove diameter is large, and described block does not seal one end port that steel bead groove diameter is large, and steel ball backstop is in a block side of oil pocket dorsad.
As a further improvement on the present invention, described block is provided with an inclined-plane tilting in the same way with steel ball circumferential surface towards one end, steel bead groove axle center, and described steel ball backstop is in this inclined-plane.
As a further improvement on the present invention, described block inclined-plane is the one in tapered plane and oblique cambered surface.
As a further improvement on the present invention, described stop device is a rope for traction, and described rope for traction two ends are connected with steel bead groove and steel ball respectively.
Useful technique effect of the present invention is: the present invention is by arranging stop device, the scope of activities of steel ball is limited in steel bead groove, make it can be picked up enough distances with smooth oil suction, and can not be inhaled into the oil pocket inside of buffer, guarantee steel ball can be got back to steel bead groove bottom smoothly, prepares next action, and it is simple in structure, guarantee that buffer works smoothly, ensured process safety.
Brief description of the drawings
Fig. 1 is that existing structure first uses view;
Fig. 2 is that existing structure second uses view;
Fig. 3 is that existing structure the 3rd uses view;
Fig. 4 is that existing structure steel ball departs from steel bead groove view;
Fig. 5 structural principle schematic diagram of the present invention.
Detailed description of the invention
Embodiment: a kind of buffer oil return apparatus of architecture advances, comprise oil pocket 1, piston 2, oil returning tube 3, steel bead groove 4, steel ball 5 and spring 6, described piston 2 can slide axially to seal and be inserted in oil pocket 1, oil pocket 1 bottom is provided with a spring groove and an oil return opening, in spring groove, be provided with a spring 6, described spring 6 stretches out spring groove towards one end of oil pocket 1, oil return opening steel bead groove 4 diameters large one end T-shaped with cross section is communicated with, one end that steel bead groove 4 diameters are little is communicated with oil returning tube 3, steel ball 5 is placed in one end that steel bead groove 4 diameters are large, and steel ball 5 diameters are greater than one end diameter that steel bead groove 4 diameters are little, also be provided with a stop device, described stop device can make steel ball 5 all the time in steel bead groove 4, when original state, spring 6 by piston 2 jack-up to the upper limit, now steel ball 5 is positioned at steel bead groove 4 bottoms, block oil returning tube 3, so that piston 2 is passive while pressing down, the inner build-up pressure of buffer, when work, piston 2 is depressed into bottom by external force, spring 6 is compressed, steel ball 5 is positioned at steel bead groove 4 bottoms, when downforce disappears, spring 6 is by piston 2 jack-up, form the vacuum of moment in buffer, by steel ball 5 by picking up in steel bead groove 4, oil returning tube 3 and buffer internal communication, oil can suck buffer inside via oil returning tube 3, in the time that steel ball 5 is picked up by vacuum, due to the effect of stop device, steel ball 5 can not depart from steel bead groove 4, effectively avoid steel ball 5 to go in oil pocket 1 because of vacuum attraction, also just guarantee to move next time and carry out smoothly.
Described stop device is the block 7 of being located at the port, one end that steel bead groove 4 diameters are large, described block 7 does not seal one end port that steel bead groove 4 diameters are large, and steel ball 5 backstops are in block 7 side of oil pocket 1 dorsad, by block 7, steel ball 5 is kept off in steel bead groove 4, neither affect oil pocket 1 turnover oil, can avoid again steel ball 5 to depart from steel bead groove 4.
Described block 7 is provided with an inclined-plane tilting in the same way with steel ball 5 circumferential surfaces towards steel bead groove 4 one end, axle center, described steel ball 5 backstops are in this inclined-plane, and step-like groove plays the effect of guiding and location to compoboard.
Described block 7 inclined-planes are the one in tapered plane and oblique cambered surface, ensure that skeleton entirety internal diameter is constant.
Described stop device is a rope for traction, and described rope for traction two ends are connected with steel bead groove 4 and steel ball 5 respectively, and rope for traction hauls steel ball 5 all the time, prevents that steel ball 5 from departing from steel bead groove 4.
Claims (5)
1. the buffer oil return apparatus of an architecture advances, comprise oil pocket (1), piston (2), oil returning tube (3), steel bead groove (4), steel ball (5) and spring (6), described piston (2) can slide axially to seal and be inserted in oil pocket (1), oil pocket (1) bottom is provided with a spring groove and an oil return opening, in spring groove, be provided with a spring (6), described spring (6) stretches out spring groove towards one end of oil pocket (1), oil return opening steel bead groove (4) diameter large one end T-shaped with cross section is communicated with, one end that steel bead groove (4) diameter is little is communicated with oil returning tube (3), steel ball (5) is placed in one end that steel bead groove (4) diameter is large, and steel ball (5) diameter is greater than the little one end diameter of steel bead groove (4) diameter, it is characterized by: be also provided with a stop device, described stop device can make steel ball (5) all the time in steel bead groove (4).
2. the buffer oil return apparatus of architecture advances according to claim 1, it is characterized by: described stop device is the block (7) of being located at the port, one end that steel bead groove (4) diameter is large, described block (7) does not seal the large one end port of steel bead groove (4) diameter, and steel ball (5) backstop is in block (7) side of oil pocket (1) dorsad.
3. the buffer oil return apparatus of architecture advances according to claim 2, is characterized by: described block (7) is provided with an inclined-plane tilting in the same way with steel ball (5) circumferential surface towards steel bead groove (4) one end, axle center, described steel ball (5) backstop is in this inclined-plane.
4. the buffer oil return apparatus of architecture advances according to claim 3, is characterized by: described block (7) inclined-plane is the one in tapered plane and oblique cambered surface.
5. the buffer oil return apparatus of architecture advances according to claim 1, is characterized by: described stop device is a rope for traction, and described rope for traction two ends are connected with steel bead groove (4) and steel ball (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080962.8A CN104044296A (en) | 2013-03-14 | 2013-03-14 | Buffer oil return device with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080962.8A CN104044296A (en) | 2013-03-14 | 2013-03-14 | Buffer oil return device with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104044296A true CN104044296A (en) | 2014-09-17 |
Family
ID=51497893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310080962.8A Pending CN104044296A (en) | 2013-03-14 | 2013-03-14 | Buffer oil return device with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104044296A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438833A (en) * | 1980-10-22 | 1984-03-27 | Stabilus Gmbh | Piston for a pneumatic, hydraulic, or hydropneumatic installation |
| CN2121570U (en) * | 1992-03-11 | 1992-11-11 | 杭州商学院 | Hydraulic damper |
| CN101429982A (en) * | 2007-11-05 | 2009-05-13 | 迪斯油压工业(昆山)有限公司 | Oil buffer |
| CN201687434U (en) * | 2009-12-23 | 2010-12-29 | 大庆油田有限责任公司 | Ball type drill rod check valve for well repair |
| CN102536144A (en) * | 2011-12-30 | 2012-07-04 | 中国石油天然气股份有限公司 | Coal bed gas double-channel well washing valve |
| CN102967533A (en) * | 2012-09-12 | 2013-03-13 | 中北大学 | High pressure seal test device for measuring daub cushioning performance |
| CN203185694U (en) * | 2013-03-14 | 2013-09-11 | 迪斯油压工业(昆山)有限公司 | Buffer oil return device with improved structure |
-
2013
- 2013-03-14 CN CN201310080962.8A patent/CN104044296A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438833A (en) * | 1980-10-22 | 1984-03-27 | Stabilus Gmbh | Piston for a pneumatic, hydraulic, or hydropneumatic installation |
| CN2121570U (en) * | 1992-03-11 | 1992-11-11 | 杭州商学院 | Hydraulic damper |
| CN101429982A (en) * | 2007-11-05 | 2009-05-13 | 迪斯油压工业(昆山)有限公司 | Oil buffer |
| CN201687434U (en) * | 2009-12-23 | 2010-12-29 | 大庆油田有限责任公司 | Ball type drill rod check valve for well repair |
| CN102536144A (en) * | 2011-12-30 | 2012-07-04 | 中国石油天然气股份有限公司 | Coal bed gas double-channel well washing valve |
| CN102967533A (en) * | 2012-09-12 | 2013-03-13 | 中北大学 | High pressure seal test device for measuring daub cushioning performance |
| CN203185694U (en) * | 2013-03-14 | 2013-09-11 | 迪斯油压工业(昆山)有限公司 | Buffer oil return device with improved structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140917 |