CN201848701U - Straight-line static-pressure guide rail sealed by sealing parts for ensuring circulation of hydraulic oil in sealed oil path - Google Patents
Straight-line static-pressure guide rail sealed by sealing parts for ensuring circulation of hydraulic oil in sealed oil path Download PDFInfo
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- CN201848701U CN201848701U CN2010205926615U CN201020592661U CN201848701U CN 201848701 U CN201848701 U CN 201848701U CN 2010205926615 U CN2010205926615 U CN 2010205926615U CN 201020592661 U CN201020592661 U CN 201020592661U CN 201848701 U CN201848701 U CN 201848701U
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Abstract
The utility model relates to a straight-line static-pressure guide rail sealed by sealing parts for ensuring circulation of hydraulic oil in a sealed oil path. A groove with a downward opening is formed in a slide block, a guide rail is embedded in the groove, a plurality of pressure oil cavities playing roles of lubrication and bearing after combination of the slide block and the guide rail are arranged on the circumferential wall in the groove and are communicated with an oil supply system through an oil path, an oil return tank is arranged on both sides of each pressure oil cavity respectively and is communicated with an oil tank, sealing parts are further arranged at both sides of each pressure oil cavity and are positioned between the oil return tanks and the slide blocks. Each of the sealing parts comprises a skeleton longitudinally provided with a through tank in the middle, O-shaped sealing rings are embedded in the lower end surface of the skeleton and both sides of the through tank, and a guide rail plate is arranged on the upper end surface of the skeleton and both sides of the through tank respectively. By using the sealing parts, the straight-line static-pressure guide rail realizes fully sealed flow of oil, so that the effects of no oil leakage and no environmental pollution are realized, the straight-line static-pressure guide rail can also not be polluted by environments, the abrasion of the static-pressure guide rail is prevented, the stability of precision is kept, and the service life is prolonged.
Description
Technical field
The utility model belongs to a kind of static pressure linear guide rail, particularly relates to a kind of straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path with high reliability more.
Background technology
The normal static pressure linear guide rail that adopts on the large-scale precision lathe, hydrostatic slideway has that coefficient of friction is little, positioning accuracy is high, can absorb advantages such as machine vibration, but traditional hydrostatic slideway hydraulic circuit partly is an open type, that is, traditional hydrostatic slideway hydraulic oil generally enters open trench flow fuel tank behind process pressure oil cavity crevice throttle, hydraulic oil directly contacts with air, easily by environmental pollution, reduced the reliability of using, hydraulic oil also may contaminated environment simultaneously.
Summary of the invention
The utility model is for solving the technical problem of the traditional hydrostatic slideway pollution that exists in the prior art, and provide a kind of oil that makes hydrostatic slideway all in closing oil path, to flow, prevent that fundamentally oil is to environment and the environment straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing to the pollution of oil in closing oil path.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path, include guide rail and slide block, be formed with the groove that Open Side Down in the described slide block, described groove is embedded in guide rail, have a plurality of pressure oil cavities that after slide block combines with guide rail, play lubricated and carrying effect on the internal perisporium of described groove, described a plurality of pressure oil cavity is communicated with oil supply system by oil circuit, the both sides of described each pressure oil cavity all offer oil-recovery tank respectively, described each oil-recovery tank all is communicated with fuel tank, both sides at each pressure oil cavity also are provided with seal, and described seal is between oil-recovery tank and slide block.
Described seal includes central longitudinal to the skeleton that has groove, the lower surface of described skeleton and embed in the both sides of groove O type sealing ring is arranged, the upper surface of described skeleton and be respectively arranged with the guide rail plate in the both sides of groove.
Described skeleton is a metallic framework.
Described guide rail plate is the plastic guide rail plate.
Advantage and the good effect that the utlity model has are: the straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path of the present utility model, owing to used seal, realized that oily complete closed flows, thereby realized oil-proof, free from environmental pollution, can be by environmental pollution yet, prevent the wearing and tearing of hydrostatic slideway, kept the stability of precision, improved service life.
Description of drawings
Fig. 1 is the installation diagram signal of straight line hydrostatic slideway;
Fig. 2 is the contour structures schematic diagram of straight line hydrostatic slideway;
Fig. 3 is the structure principle chart of static pressure linear guide rail of the present utility model;
Fig. 4 is the planar structure schematic diagram of seal;
Fig. 5 is the A-A cut-away view of Fig. 4.
Label among the figure is respectively:
1-fuel tank; 2-oil suction oil filter; 3-motor; 4-oil pump; 5-Pressure gauge; 6-overflow valve; 7-thick oil filter; 8-smart oil filter; 9-check valve; 10-accumulator; 11-pressure switch; 12-oil-recovery tank; 13,14,15,16-choke valve; 17,18,19,20-pressure oil cavity; 21-slide block; 22-guide rail; 23-seal; 24-workpiece; 25-lathe bed; 26-groove; 27-slide; 28-O type sealing ring; 29-skeleton; 30-guide rail plate; 31-groove.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. to describe the straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path of the present utility model in detail as follows:
As Fig. 1, Fig. 2, shown in Figure 3, the straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path of the present utility model, include lathe bed 25 and the slide 23 that is used for place work piece 24, and the guide rail 22 and the slide block 21 that are positioned at slide 27 bottom surfaces, be formed with the groove 26 that Open Side Down in the described slide block 21, described groove 26 is embedded in guide rail 22, have a plurality of pressure oil cavities 17 that after slide block 21 combines with guide rail 22, play lubricated and carrying effect on the internal perisporium of described groove 26,18,19,20, described a plurality of pressure oil cavity 17,18,19,20 are communicated with oil supply system by oil circuit, described each pressure oil cavity 17,18,19,20 both sides all offer oil-recovery tank 12 respectively, described each oil-recovery tank 12 all is communicated with fuel tank 1, and described each bar is to pressure oil cavity 17,18,19, a choke valve 13 all is set on the oil circuit of 20 fuel feeding, 14,15,16.
Both sides at each pressure oil cavity 17,18,19,20 also are provided with seal 23, and described seal 23 is between oil-recovery tank 12 and slide block 21.
As Fig. 4, shown in Figure 5, the assembly that described seal 23 is made up of three parts includes central longitudinal to the skeleton 29 that has groove 31, the lower surface of described skeleton 29 and embed in the both sides of groove 31 O type sealing ring 28 is arranged, the upper surface of described skeleton 29 and be respectively arranged with guide rail plate 30 in the both sides of groove 31.Described skeleton 29 is a metallic framework.Described guide rail plate 30 is the plastic guide rail plate.
The straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path of the present utility model, the pressure oil that oil supply system provides enters 4 pressure oil cavities respectively through four orifice restriction devices, between four spigot surfaces of 4 pressure oil cavities and guide rail the 0.015mm gap is arranged, pressure oil in the pressure oil cavity flows to oil-recovery tank 12 by 0.015 gap, collects to flow back into fuel tank together.When structural design, 4 pressure oil cavities are designed to equate with the throttling pore resistance of 4 choke valves that to the throttle resistance of oil the pressure of such 4 pressure oil cavities will be 50% of charge oil pressure.When the normal load on the slide block increases, the height of the slide block slight distance that will descend, at this moment pressure oil cavity 17 and 19 outflow gap reduce, pressure in its chamber will increase, and the outflow gap of pressure oil cavity 18 and 20 will increase, and the pressure in its chamber will reduce, thereby produce a support force opposite with load, when this counter-force equated with the load recruitment, slide block just stopped vertical moving and is stabilized on the new position.When slide block bears a horizontal external, the direction of F as shown in Figure 3, the pressure oil cavity 19 of slide block and 20 oil flow out the slit and diminish, thereby pressure raises, and the pressure oil cavity 17 of slide block and 18 oil flow out the slit change greatly, its pressure reduces, thereby forms a reaction force that balances each other with external force, and slide block is parked on the new position.No matter be vertical external force or horizontal external, slide block only need produce that (0.001～0.005mm) can be under new position stability once very little displacement, it is very little that this displacement is compared with the machine tool accuracy franchise, so the precision of this static pressure linear guide rail is very high.
When hydrostatic slideway is worked, seal 23 slides with slide block 21, the hydraulic oil that enters pressure oil cavity 17,18,19,20 enters oil back chamber 12 through throttle chink, flow back to fuel tank 1 by the road, thereby realize that hydraulic oil is from from oil pump 4, enter pressure oil cavity 17,18,19,20 through filter 7 and 8, check valve 9, flow controller 13,14,15,16, behind crevice throttle, enter oil back chamber 12 again, after oil return pipe flows back to fuel tank.The overall process that flows is to carry out in the pipeline of sealing.
Claims (4)
1. straight line hydrostatic slideway that hydraulic oil is circulated by seal sealing in closing oil path, include guide rail (22) and slide block (21), be formed with the groove that Open Side Down (26) in the described slide block (21), described groove (26) is embedded in guide rail (22), have a plurality of pressure oil cavities (17 that after slide block (21) combines with guide rail (22), play lubricated and carrying effect on the internal perisporium of described groove (26), 18,19,20), described a plurality of pressure oil cavity (17,18,19,20) be communicated with oil supply system by oil circuit, described each pressure oil cavity (17,18,19,20) both sides all offer oil-recovery tank (12) respectively, described each oil-recovery tank (12) all is communicated with fuel tank (1), it is characterized in that: at each pressure oil cavity (17,18,19,20) both sides also are provided with seal (23), and described seal (23) is positioned between oil-recovery tank (12) and the slide block (21).
2. the straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path according to claim 1, it is characterized in that: described seal (23) includes central longitudinal to the skeleton that has groove (31) (29), the lower surface of described skeleton (29) and embed in the both sides of groove (31) O type sealing ring (28) is arranged, the upper surface of described skeleton (29) and be respectively arranged with guide rail plate (30) in the both sides of groove (31).
3. the straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path according to claim 2, it is characterized in that: described skeleton (29) is a metallic framework.
4. the straight line hydrostatic slideway that hydraulic oil is circulated by the seal sealing in closing oil path according to claim 2, it is characterized in that: described guide rail plate (30) is the plastic guide rail plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205926615U CN201848701U (en) | 2010-11-04 | 2010-11-04 | Straight-line static-pressure guide rail sealed by sealing parts for ensuring circulation of hydraulic oil in sealed oil path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205926615U CN201848701U (en) | 2010-11-04 | 2010-11-04 | Straight-line static-pressure guide rail sealed by sealing parts for ensuring circulation of hydraulic oil in sealed oil path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848701U true CN201848701U (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205926615U Expired - Fee Related CN201848701U (en) | 2010-11-04 | 2010-11-04 | Straight-line static-pressure guide rail sealed by sealing parts for ensuring circulation of hydraulic oil in sealed oil path |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983835A (en) * | 2010-11-04 | 2011-03-09 | 路文忠 | Linear hydrostatic guideway leading hydraulic oil to circulate in closed oil circuit by sealing elements |
| CN102513513A (en) * | 2011-12-20 | 2012-06-27 | 西安奥奈特固体润滑工程学研究有限公司 | Design method of guide rails for continuous casting tracks |
| CN103410857A (en) * | 2013-07-19 | 2013-11-27 | 无锡双益精密机械有限公司 | Siege type hydrostatic guide rail |
| CN103406766A (en) * | 2012-12-18 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | Sliding block type static pressure guide rail series having same installation size with pin roller linear guide rail |
| CN103406767A (en) * | 2012-12-18 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | Oil draining block and oil sucking hydraulic circuit combination device for sliding block hydrostatic guide rail |
-
2010
- 2010-11-04 CN CN2010205926615U patent/CN201848701U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983835A (en) * | 2010-11-04 | 2011-03-09 | 路文忠 | Linear hydrostatic guideway leading hydraulic oil to circulate in closed oil circuit by sealing elements |
| CN102513513A (en) * | 2011-12-20 | 2012-06-27 | 西安奥奈特固体润滑工程学研究有限公司 | Design method of guide rails for continuous casting tracks |
| CN103406766A (en) * | 2012-12-18 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | Sliding block type static pressure guide rail series having same installation size with pin roller linear guide rail |
| CN103406767A (en) * | 2012-12-18 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | Oil draining block and oil sucking hydraulic circuit combination device for sliding block hydrostatic guide rail |
| CN103406766B (en) * | 2012-12-18 | 2017-03-29 | 芜湖陀曼精机科技有限公司 | There is the slide block type hydrostatic slideway series of identical installation dimension with roller line slideway |
| CN103410857A (en) * | 2013-07-19 | 2013-11-27 | 无锡双益精密机械有限公司 | Siege type hydrostatic guide rail |
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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 |
Granted publication date: 20110601 Termination date: 20181104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |