CN203185694U - Buffer oil return device with improved structure - Google Patents
Buffer oil return device with improved structure Download PDFInfo
- Publication number
- CN203185694U CN203185694U CN 201320115091 CN201320115091U CN203185694U CN 203185694 U CN203185694 U CN 203185694U CN 201320115091 CN201320115091 CN 201320115091 CN 201320115091 U CN201320115091 U CN 201320115091U CN 203185694 U CN203185694 U CN 203185694U
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- CN
- China
- Prior art keywords
- steel bead
- groove
- bead groove
- steel
- oil return
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- 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 - Fee Related
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Abstract
The utility model 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. 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 can not be absorbed into the inner side 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 capable of guaranteeing smooth work of the buffer and machining safety.
Description
Technical field
The utility model 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 present buffer is communicated with oil pocket is without any restraint device, steel ball breaks away from steel bead groove sometimes and enters in the oil pocket under the effect of oil pocket pull of vacuum, when the piston action of oil pocket next time, its move to certain position just by steel ball block can't continue the motion, steel ball can't enter in the steel bead groove return line is sealed simultaneously, cause pistons work to lose efficacy, can't play cushioning effect.
Summary of the invention
In order to remedy above deficiency, the utility model provides a kind of buffer oil return apparatus of architecture advances, and the buffer oil return apparatus of this architecture advances can effectively avoid steel ball to break away from steel bead groove, and the assurance buffer is worked smoothly.
The utility model 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 endwisely slip to seal and be inserted in the oil pocket, the oil pocket bottom is provided with a spring groove and an oil return opening, be provided with a spring in the spring groove, described spring stretches out spring groove towards an end of oil pocket, the T-shaped big end of steel bead groove diameter of oil return opening and cross section is communicated with, the end that the steel bead groove diameter is little is communicated with oil returning tube, steel ball is placed in the big end of steel bead groove diameter, and diameter of the steel ball is greater than steel
The end diameter that pearl groove diameter is little also is provided with a stop device, and described stop device can make steel ball be in the steel bead groove all the time.
As further improvement of the utility model, described stop device is the block of being located at the big end port of steel bead groove diameter, and described block does not seal the big end port of steel bead groove diameter, and steel ball backstop is in a block side of oil pocket dorsad.
As further improvement of the utility model, described block is provided with an inclined-plane that tilts in the same way with the steel ball circumferential surface towards steel bead groove axle center one end, and described steel ball backstop is in this inclined-plane.
As further improvement of the utility model, described block inclined-plane is tapered plane and oblique a kind of in the cambered surface.
As further improvement of the utility model, described stop device is a rope for traction, and described rope for traction two ends are connected with steel ball with steel bead groove respectively.
Useful technique effect of the present utility model is: the utility model is by arranging stop device, the scope of activities of steel ball is limited in the 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, the assurance steel ball can be got back to the steel bead groove bottom smoothly, prepares next action, and it is simple in structure, guaranteed that buffer works smoothly, guaranteed process safety.
Description of 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 breaks away from the steel bead groove view for the existing structure steel ball;
Fig. 5 structural principle schematic diagram of the present utility model.
The specific embodiment
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 endwisely slip to seal and be inserted in the oil pocket 1, oil pocket 1 bottom is provided with a spring groove and an oil return opening, be provided with a spring 6 in the spring groove, described spring 6 stretches out spring groove towards an end of oil pocket 1, the T-shaped big end of steel bead groove 4 diameters of oil return opening and cross section is communicated with, the end that steel bead groove 4 diameters are little is communicated with oil returning tube 3, steel ball 5 is placed in the big end of steel bead groove 4 diameters, and steel ball 5 diameters are greater than the little end diameter of steel bead groove 4 diameters, also be provided with a stop device, described stop device can make steel ball 5 be in all the time in the steel bead groove 4, during original state, spring 6 with piston 2 jack-up to the upper limit, this moment, steel ball 5 was positioned at steel bead groove 4 bottoms, block oil returning tube 3, so that during piston 2 passive pressing down, the inner build-up pressure of buffer; During work, piston 2 is depressed into the 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 with piston 2 jack-up, form the vacuum of moment in the buffer, with steel ball 5 by picking up oil returning tube 3 and buffer internal communication in the steel bead groove 4, oil can suck buffer inside via oil returning tube 3, when steel ball 5 was picked up by vacuum, because the effect of stop device, steel ball 5 can not break away from steel bead groove 4, effectively avoid steel ball 5 to go in the 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 big end port of steel bead groove 4 diameters, described block 7 does not seal the big end port of steel bead groove 4 diameters, 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 influence oil pocket 1 turnover oil, can avoid steel ball 5 to break away from steel bead groove 4 again.
Described block 7 is provided with an inclined-plane that tilts in the same way with steel ball 5 circumferential surfaces towards steel bead groove 4 axle center one end, and 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 tapered plane and oblique a kind of in the cambered surface, guarantee that the whole internal diameter of skeleton is constant.
Described stop device is a rope for traction, and described rope for traction two ends are connected with steel ball 5 with steel bead groove 4 respectively, and rope for traction hauls steel ball 5 all the time, prevents that steel ball 5 breaks away 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 endwisely slip to seal and be inserted in the oil pocket (1), oil pocket (1) bottom is provided with a spring groove and an oil return opening, be provided with a spring (6) in the spring groove, described spring (6) stretches out spring groove towards an end of oil pocket (1), oil return opening steel bead groove (a 4) diameter big end T-shaped with cross section is communicated with, the end that steel bead groove (4) diameter is little is communicated with oil returning tube (3), steel ball (5) is placed in the big end of steel bead groove (4) diameter, and steel ball (5) diameter is greater than the little end diameter of steel bead groove (4) diameter, it is characterized by: also be provided with a stop device, described stop device can make steel ball (5) be in all the time in the 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 big end port of steel bead groove (4) diameter, described block (7) does not seal the big end port of steel bead groove (4) diameter, and steel ball (5) backstop is in block (a 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 that tilts in the same way with steel ball (5) circumferential surface towards steel bead groove (4) axle center one end, and 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 tapered plane and oblique a kind of in the cambered surface.
5. the buffer oil return apparatus of architecture advances according to claim 1, it is characterized by: described stop device is a rope for traction, described rope for traction two ends are connected with steel ball (5) with steel bead groove (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115091 CN203185694U (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 |
|---|---|---|---|
| CN 201320115091 CN203185694U (en) | 2013-03-14 | 2013-03-14 | Buffer oil return device with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203185694U true CN203185694U (en) | 2013-09-11 |
Family
ID=49102581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320115091 Expired - Fee Related CN203185694U (en) | 2013-03-14 | 2013-03-14 | Buffer oil return device with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203185694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044296A (en) * | 2013-03-14 | 2014-09-17 | 迪斯油压工业(昆山)有限公司 | Buffer oil return device with improved structure |
-
2013
- 2013-03-14 CN CN 201320115091 patent/CN203185694U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044296A (en) * | 2013-03-14 | 2014-09-17 | 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130911 |